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Sample records for web imager cwi

  1. The Cosmic Web Imager (CWI) --IFU And First Results

    NASA Astrophysics Data System (ADS)

    Chang, Daphne

    2010-01-01

    We present the Cosmic Web Imager (CWI), a new integral-field spectrograph that aims to detect and map emission from the intergalactic medium (IGM) using a unique combination of instrumental techniques. First, a mirror slicer Integral Field Unit (IFU) provides spatial as well as spectral information over a wide 60 x 40 arcsec2 field of view. Volume-Phase Holographic (VPH) gratings maximize peak diffraction efficiency and allow a single grating to cover a wide bandpass. Finally, a low read-noise large format e2v CCD combined with a source/background nod-and-shuffle observing pattern controls the systematics and allows for Poisson-limited sky subtraction. Our observations of the low surface brightness universe will focus on the strong UV resonance lines of Ly? 1216, CIV 1550, and OVI 1033 redshifted over 3800-9000 Å to trace IGM at 1 < z < 7. We will showcase our IFU design as well as present first light data.

  2. Ground and Space-based Imaging of the IGM with CWI, FIREBALL, and ISTOS

    NASA Astrophysics Data System (ADS)

    Martin, Christopher

    I discuss several experimental projects underway or proposed designed to discover and map emission from the IGM. The Cosmic Web Imager (CWI) is a ground-based high resolution spectrometer designed to detect low surface brightness emission from redshifted Lyman alpha, OVI and CIV at Palomar and Keck Observatories, over 2 < z < 6. FIREBALL is a balloonborne telescope/spectrometer that will search for IGM emission in the 0.3 < z < 1.0 range in the UV balloon window at 2000 Angstroms. ISTOS (Imaging Spectroscopic Telescope for Origins Surveys) is a proposed SMEX mission to discover and map baryons in the IGM from 0.05 < z < 2 over the 1250-2800 Angstrom range. All three experiments are integral field spectrometers designed to detect low surface brightness emission and reject point and diffuse foregrounds, and all have sensitives required to detect IGM and Circum-Galactic Medium emission at levels predicted by three independent cosmological simulations.

  3. Performance and Preliminary Results From FIREBALL and CWI.

    NASA Astrophysics Data System (ADS)

    Matuszewski, Mateusz; Martin, D.

    2011-01-01

    The Faint Intergalactic Redshifted Emission Balloon (FIREBALL) is a balloon-borne, vaccuum ultraviolet (200 nm), fiber-fed integral field spectrograph designed to observe line emission from the intergalactic (IGM) and circumgalactic (CGM) media in the redshift range 0.3 < z < 1.0. It had its first successful science flight in Juny 2009. The Cosmic Web Imager (CWI) is a slicer-based integral field spectrograph built for the 200" Hale Telescope at Palomar Observatory. It is designed to detect and map line emission from the IGM, CGM and circum-QSO medium (CQM) in the redshift range 2 < z < 7. The design, construction, commissioning, and initial scientific results of FIREBALL and CWI are presented.

  4. Probabilistic Web Image Gathering

    E-print Network

    Yanai, Keiji

    1 Probabilistic Web Image Gathering 1. Objective & background 2. Related work 3. Method 4, JAPAN (UEC) (Long-term) Objective of our Web Image Gathering Gather several hundreds of images associated with one concept from the Web without human intervention It's not image search. Non

  5. The IGM Project: Searching For IGM Emission Over 0CWI

    NASA Astrophysics Data System (ADS)

    Martin, Christopher D.; Matuszewski, M.; Rahman, S.; Morrissey, P.; Moore, A.; Schiminovich, D.; Milliard, B.; Frank, S.; Deharveng, J.; Peroux, C.; CWI Team; FIREBALL Team; KCWI Team; ISTOS Team

    2011-01-01

    I discuss several experimental projects underway or proposed designed to discover and map emission from the IGM. The Cosmic Web Imager (CWI) is a ground-based high resolution spectrometer designed to detect low surface brightness emission from redshifted Lyman alpha, OVI and CIV at Palomar and Keck Observatories, over 2CWI. This work is supported by NASA and NSF.

  6. Web Mining for Web Image Retrieval.

    ERIC Educational Resources Information Center

    Chen, Zheng; Wenyin, Liu; Zhang, Feng; Li, Mingjing; Zhang, Hongjiang

    2001-01-01

    Presents a prototype system for image retrieval from the Internet using Web mining. Discusses the architecture of the Web image retrieval prototype; document space modeling; user log mining; and image retrieval experiments to evaluate the proposed system. (AEF)

  7. An Experiment on Generic Image Classification Using Web Images

    E-print Network

    Yanai, Keiji

    An Experiment on Generic Image Classification Using Web Images Keiji Yanai Department of Computer-mail: yanai@cs.uec.ac.jp Abstract. In this paper, we describe an experiment on generic image classification using a large number of images gathered from the Web as learning images. The processing consists

  8. Synthesis and biodistribution of the alpha 2-adrenergic receptor antagonist (11C)WY26703. Use as a radioligand for positron emission tomography.

    PubMed

    Pleus, R C; Shiue, C Y; Shiue, G G; Rysavy, J A; Huang, H; Cornish, K G; Sunderland, J J; Bylund, D B

    1992-01-01

    The purpose of these experiments was to label an alpha 2-adrenergic receptor ligand with a positron emitting isotope and then test this radioligand in vivo. No-carrier-added [11C]WY26703 was synthesized by methylation of its desmethyl precursor, WY27050 with [11C]H3I followed by purification with HPLC in 14% yield in a synthesis time of 35 min from EOB. Ki values for unlabeled WY26703, ranged from 0.52-1.55 nM in tissues that express a single alpha 2-adrenergic receptor subtype. Tail vein injections of [11C]WY26703 in mice revealed that the compound was distributed in the brain, heart, lungs, spleen, and kidneys. In the brains of rats treated with atipamezole, an alpha 2-adrenergic receptor antagonist, there was no decrease in [11C] accumulation indicating a lack of observable specific binding of the radioligand. When brain tissue was homogenized and filtered, however, atipamezole decreased [11C] activity by 53%. Therefore, [11C]WY26703 crosses the blood-brain barrier and specifically binds to alpha 2-adrenergic receptors with high affinity. Atipamezole treatment decreased only the area of the locus coeruleus [11C] value of the various regions of the brain. The affinity, however, of [11C]WY26703 does not appear to distinguish alpha 2-receptors from nonspecific binding sites. PET study of [11C]WY26703 in a Rhesus monkey showed that influx of [11C]WY26703 into the brain was high for the first few minutes but radioactivity then declined rapidly and did not retain in a specific brain region. This suggests that [11C]WY26703 may not be a useful ligand for imaging human alpha 2-adrenergic receptors by positron emission tomography. PMID:1363726

  9. Institutions for Notions of Behaviour and Reachable-Part Alexander Kurz, CWI, Amsterdam, kurz@cwi.nl

    E-print Network

    Kurz, Alexander

    that B is a notion of behaviour for Mod : Sig op ! CAT i#11; B is a #12;bred monad on the #12;bration p-Grothendieck construction. This allows dualising the results proved for notions of behaviours for Mod : Sig op ! CAT. Step 3Institutions for Notions of Behaviour and Reachable-Part (Abstract) Alexander Kurz, CWI, Amsterdam

  10. Images on the Web for Astronomy Teaching: Image Repositories

    NASA Astrophysics Data System (ADS)

    Fraknoi, Andrew

    This guide lists and reviews 61 Web sites with catalogs of astronomical images that are useful for both formal and informal education. Some are general sites (including images covering many topics), whereas others are particular to one topic or one instrument. We briefly discuss getting started in using images, and copyright and fair use issues.

  11. Text Localization in Web Images Using Probabilistic Candidate Selection Model

    E-print Network

    Tan, Chew Lim

    localization in web image plays an important role in web image information extraction and retrieval. Current background. In this paper, we propose a text extraction algorithm from web images based on the probabilistic non-homogenous images effectively. Keywords: text extraction; text localization; web image I

  12. Landmark image super-resolution by retrieving web images.

    PubMed

    Yue, Huanjing; Sun, Xiaoyan; Yang, Jingyu; Wu, Feng

    2013-12-01

    This paper proposes a new super-resolution (SR) scheme for landmark images by retrieving correlated web images. Using correlated web images significantly improves the exemplar-based SR. Given a low-resolution (LR) image, we extract local descriptors from its up-sampled version and bundle the descriptors according to their spatial relationship to retrieve correlated high-resolution (HR) images from the web. Though similar in content, the retrieved images are usually taken with different illumination, focal lengths, and shot perspectives, resulting in uncertainty for the HR detail approximation. To solve this problem, we first propose aligning these images to the up-sampled LR image through a global registration, which identifies the corresponding regions in these images and reduces the mismatching. Second, we propose a structure-aware matching criterion and adaptive block sizes to improve the mapping accuracy between LR and HR patches. Finally, these matched HR patches are blended together by solving an energy minimization problem to recover the desired HR image. Experimental results demonstrate that our SR scheme achieves significant improvement compared with four state-of-the-art schemes in terms of both subjective and objective qualities. PMID:23974626

  13. An Analysis of Web Image Queries for Search.

    ERIC Educational Resources Information Center

    Pu, Hsiao-Tieh

    2003-01-01

    Examines the differences between Web image and textual queries, and attempts to develop an analytic model to investigate their implications for Web image retrieval systems. Provides results that give insight into Web image searching behavior and suggests implications for improvement of current Web image search engines. (AEF)

  14. Active reranking for web image search.

    PubMed

    Tian, Xinmei; Tao, Dacheng; Hua, Xian-Sheng; Wu, Xiuqing

    2010-03-01

    Image search reranking methods usually fail to capture the user's intention when the query term is ambiguous. Therefore, reranking with user interactions, or active reranking, is highly demanded to effectively improve the search performance. The essential problem in active reranking is how to target the user's intention. To complete this goal, this paper presents a structural information based sample selection strategy to reduce the user's labeling efforts. Furthermore, to localize the user's intention in the visual feature space, a novel local-global discriminative dimension reduction algorithm is proposed. In this algorithm, a submanifold is learned by transferring the local geometry and the discriminative information from the labelled images to the whole (global) image database. Experiments on both synthetic datasets and a real Web image search dataset demonstrate the effectiveness of the proposed active reranking scheme, including both the structural information based active sample selection strategy and the local-global discriminative dimension reduction algorithm. PMID:19887316

  15. Intergalactic Medium Emission Observations with the Cosmic Web Imager. II. Discovery of Extended, Kinematically Linked Emission around SSA22 Ly? Blob 2

    NASA Astrophysics Data System (ADS)

    Martin, D. Christopher; Chang, Daphne; Matuszewski, Matt; Morrissey, Patrick; Rahman, Shahin; Moore, Anna; Steidel, Charles C.; Matsuda, Yuichi

    2014-05-01

    The intergalactic medium (IGM) is the dominant reservoir of baryons, delineates the large-scale structure of the universe at low to moderate overdensities, and provides gas from which galaxies form and evolve. Simulations of a cold-dark-matter- (CDM-) dominated universe predict that the IGM is distributed in a cosmic web of filaments and that galaxies should form along and at the intersections of these filaments. While observations of QSO absorption lines and the large-scale distribution of galaxies have confirmed the CDM paradigm, the cosmic web of IGM has never been confirmed by direct imaging. Here we report our observation of the Ly? blob 2 (LAB2) in SSA22 with the Cosmic Web Imager (CWI). This is an integral field spectrograph optimized for low surface brightness, extended emission. With 22 hr of total on- and off-source exposure, CWI has revealed that LAB2 has extended Ly? emission that is organized into azimuthal zones consistent with filaments. We perform numerous tests with simulations and the data to secure the robustness of this result, which relies on data with modest signal-to-noise ratios. We have developed a smoothing algorithm that permits visualization of data cube slices along image or spectral image planes. With both raw and smoothed data cubes we demonstrate that the filaments are kinematically associated with LAB2 and display double-peaked profiles characteristic of optically thick Ly? emission. The flux is 10-20 times brighter than expected for the average emission from the IGM but is consistent with boosted fluorescence from a buried QSO or gravitation cooling radiation. Using simple emission models, we infer a baryon mass in the filaments of at least 1-4 × 1011 M ?, and the dark halo mass is at least 2 × 1012 M ?. The spatial-kinematic morphology is more consistent with inflow from the cosmic web than outflow from LAB2, although an outflow feature maybe present at one azimuth. LAB2 and the surrounding gas have significant and coaligned angular momentum, strengthening the case for their association.

  16. Intergalactic medium emission observations with the cosmic web imager. II. Discovery of extended, kinematically linked emission around SSA22 Ly? BLOB 2

    SciTech Connect

    Christopher Martin, D.; Chang, Daphne; Matuszewski, Matt; Morrissey, Patrick; Rahman, Shahin; Moore, Anna; Steidel, Charles C.; Matsuda, Yuichi

    2014-05-10

    The intergalactic medium (IGM) is the dominant reservoir of baryons, delineates the large-scale structure of the universe at low to moderate overdensities, and provides gas from which galaxies form and evolve. Simulations of a cold-dark-matter- (CDM-) dominated universe predict that the IGM is distributed in a cosmic web of filaments and that galaxies should form along and at the intersections of these filaments. While observations of QSO absorption lines and the large-scale distribution of galaxies have confirmed the CDM paradigm, the cosmic web of IGM has never been confirmed by direct imaging. Here we report our observation of the Ly? blob 2 (LAB2) in SSA22 with the Cosmic Web Imager (CWI). This is an integral field spectrograph optimized for low surface brightness, extended emission. With 22 hr of total on- and off-source exposure, CWI has revealed that LAB2 has extended Ly? emission that is organized into azimuthal zones consistent with filaments. We perform numerous tests with simulations and the data to secure the robustness of this result, which relies on data with modest signal-to-noise ratios. We have developed a smoothing algorithm that permits visualization of data cube slices along image or spectral image planes. With both raw and smoothed data cubes we demonstrate that the filaments are kinematically associated with LAB2 and display double-peaked profiles characteristic of optically thick Ly? emission. The flux is 10-20 times brighter than expected for the average emission from the IGM but is consistent with boosted fluorescence from a buried QSO or gravitation cooling radiation. Using simple emission models, we infer a baryon mass in the filaments of at least 1-4 × 10{sup 11} M {sub ?}, and the dark halo mass is at least 2 × 10{sup 12} M {sub ?}. The spatial-kinematic morphology is more consistent with inflow from the cosmic web than outflow from LAB2, although an outflow feature maybe present at one azimuth. LAB2 and the surrounding gas have significant and coaligned angular momentum, strengthening the case for their association.

  17. Image Searching on the Excite Web Search Engine.

    ERIC Educational Resources Information Center

    Goodrum, Abby; Spink, Amanda

    2001-01-01

    Examines visual information needs as expressed in users' Web image queries on the Excite search engine. Discusses metadata; content-based image retrieval; user interaction with images; terms per query; term frequency; and implications for the development of models for visual information retrieval and for the design of Web search engines.…

  18. A Structure for Transportable, Dynamic Multimedia Documents Dick C.A. Bulterman (dcab@cwi.nl)

    E-print Network

    Liere, Robert van

    within the CWI/Multimedia Pipeline. 1. Introduction A visitor to any computer-industry trade show for automobile mechanics. At first glance, current generation multimedia sys- tems can do nearly everything

  19. Study of concrete's behavior under 4-point bending load using Coda Wave Interferometry (CWI) analysis

    NASA Astrophysics Data System (ADS)

    Zhang, Y.; Abraham, O.; Chapeleau, X.; Cottineau, L.-M.; Tournat, V.; Le Duff, A.; Lascoup, B.; Durand, O.

    2013-01-01

    Coda Wave Interferometry (CWI) is an ultrasonic NDT method suitable for complex material such as concrete that can precisely measure small propagation velocity variation (10-2%). By measuring variation of propagation velocity in concrete caused by acoustoelasticity phenomena, CWI analysis can be used to monitor concrete's internal stress level. For the first time, CWI is used to measure propagation velocity variations due to a stress field in a concrete beam under four-points bending test, which contains simultaneously compressive and tensile stress. Embedded optical-fiber sensors, strain gauges are used in the experiment, in order to confirm and validate the CWI analysis result. Thermocouples are also embedded into concrete beams for monitoring internal temperature fluctuations.

  20. The Influence of Web Page Images on the Performance of Web Servers

    E-print Network

    Murphy, John

    The Influence of Web Page Images on the Performance of Web Servers Cristina Hava Muntean, Jennifer. In recent years World Wide Web traffic has shown phenomenal growth. The main causes are the continuing increase in the number of people navigating the Internet and the creation of millions of new Web sites

  1. Detecting image purpose in World Wide Web documents

    NASA Astrophysics Data System (ADS)

    Paek, Seungyup; Smith, John R.

    1998-04-01

    The number of WWW documents available to users of the Internet is growing at an incredible rate. Therefore, it is becoming increasingly important to develop systems that aid users in searching, filtering, and retrieving information from the Internet. Currently, only a few prototype systems catalog and index images in Web documents. To greatly improve the cataloging and indexing of images on the Web, we have developed a prototype rule-based systems that detects the content images in Web documents. Content images are images that are associated with the main content of Web documents, as opposed to a multitude of other images that exist in Web documents for different purposes, such as decorative, advertisement and logo images. We present a system that uses decision tree learning for automated rule induction for the content images detection system. The system uses visual features, text-related features and the document context of images in concert for fast and effective content image detection in Web documents. We have evaluated the system by collecting more than 1200 images from 4 different Web sites and we have achieved an overall classification accuracy of 84 percent.

  2. Display gamma is an important factor in Web image viewing

    NASA Astrophysics Data System (ADS)

    Zhang, Xuemei; Lavin, Yingmei; Silverstein, D. Amnon

    2001-06-01

    We conducted a perceptual image preference experiment over the web to find our (1) if typical computer users have significant variations in their display gamma settings, and (2) if so, do the gamma settings have significant perceptual effect on the appearance of images in their web browsers. The digital image renderings used were found to have preferred tone characteristics from a previous lab- controlled experiment. They were rendered with 4 different gamma settings. The subjects were asked to view the images over the web, with their own computer equipment and web browsers. The subjects werewe asked to view the images over the web, with their own computer equipment and web browsers. The subjects made pair-wise subjective preference judgements on which rendering they liked bets for each image. Each subject's display gamma setting was estimated using a 'gamma estimator' tool, implemented as a Java applet. The results indicated that (1) the user's gamma settings, as estimated in the experiment, span a wide range from about 1.8 to about 3.0; (2) the subjects preferred images that werewe rendered with a 'correct' gamma value matching their display setting. Subjects disliked images rendered with a gamma value not matching their displays'. This indicates that display gamma estimation is a perceptually significant factor in web image optimization.

  3. Web-scale Image Annotation Jiakai Liu1

    E-print Network

    Cortes, Corinna

    -based image retrieval (CBIR). First, the involved tech- nologies, including feature extraction, indexing to semantic labels. Fea- ture extraction obtains useful signals from images. Signals are then mappedWeb-scale Image Annotation Jiakai Liu1 , Rong Hu1,2 , Meihong Wang1,3 . Yi Wang1 , and Edward Y

  4. Medical Imaging on the Semantic Web: Annotation and Image Markup Daniel L. Rubin,1

    E-print Network

    Rubin, Daniel L.

    Medical Imaging on the Semantic Web: Annotation and Image Markup Daniel L. Rubin,1 Pattanasak@med.stanford.edu, dsc@northwestern.edu Abstract Medical images are proliferating at an explosive pace, similar to other and physicians access and use these images optimally. While Semantic Web technologies are showing promise

  5. High-performance web viewer for cardiac images

    NASA Astrophysics Data System (ADS)

    dos Santos, Marcelo; Furuie, Sergio S.

    2004-04-01

    With the advent of the digital devices for medical diagnosis the use of the regular films in radiology has decreased. Thus, the management and handling of medical images in digital format has become an important and critical task. In Cardiology, for example, the main difficulty is to display dynamic images with the appropriated color palette and frame rate used on acquisition process by Cath, Angio and Echo systems. In addition, other difficulty is handling large images in memory by any existing personal computer, including thin clients. In this work we present a web-based application that carries out these tasks with robustness and excellent performance, without burdening the server and network. This application provides near-diagnostic quality display of cardiac images stored as DICOM 3.0 files via a web browser and provides a set of resources that allows the viewing of still and dynamic images. It can access image files from the local disks, or network connection. Its features include: allows real-time playback, dynamic thumbnails image viewing during loading, access to patient database information, image processing tools, linear and angular measurements, on-screen annotations, image printing and exporting DICOM images to other image formats, and many others, all characterized by a pleasant user-friendly interface, inside a Web browser by means of a Java application. This approach offers some advantages over the most of medical images viewers, such as: facility of installation, integration with other systems by means of public and standardized interfaces, platform independence, efficient manipulation and display of medical images, all with high performance.

  6. The 2009 Foundation for Child Development Child and Youth Well-Being Index (CWI) Report

    ERIC Educational Resources Information Center

    Foundation for Child Development, 2009

    2009-01-01

    The Foundation for Child Development Child and Youth Well-Being Index Project at Duke University issues an annual comprehensive measure of how children are faring in the United States. The Child Well-Being Index (CWI) is based on a composite of 28 "Key Indicators" of wellbeing that are grouped into seven "Quality-of-Life/Well-Being Domains,"…

  7. Enterprise-scale image distribution with a Web PACS.

    PubMed

    Gropper, A; Doyle, S; Dreyer, K

    1998-08-01

    The integration of images with existing and new health care information systems poses a number of challenges in a multi-facility network: image distribution to clinicians; making DICOM image headers consistent across information systems; and integration of teleradiology into PACS. A novel, Web-based enterprise PACS architecture introduced at Massachusetts General Hospital provides a solution. Four AMICAS Web/Intranet Image Servers were installed as the default DICOM destination of 10 digital modalities. A fifth AMICAS receives teleradiology studies via the Internet. Each AMICAS includes: a Java-based interface to the IDXrad radiology information system (RIS), a DICOM autorouter to tape-library archives and to the Agfa PACS, a wavelet image compressor/decompressor that preserves compatibility with DICOM workstations, a Web server to distribute images throughout the enterprise, and an extensible interface which permits links between other HIS and AMICAS. Using wavelet compression and Internet standards as its native formats, AMICAS creates a bridge to the DICOM networks of remote imaging centers via the Internet. This teleradiology capability is integrated into the DICOM network and the PACS thereby eliminating the need for special teleradiology workstations. AMICAS has been installed at MGH since March of 1997. During that time, it has been a reliable component of the evolving digital image distribution system. As a result, the recently renovated neurosurgical ICU will be filmless and use only AMICAS workstations for mission-critical patient care. PMID:9735424

  8. On-demand server-side image processing for web-based DICOM image display

    NASA Astrophysics Data System (ADS)

    Sakusabe, Takaya; Kimura, Michio; Onogi, Yuzo

    2000-04-01

    Low cost image delivery is needed in modern networked hospitals. If a hospital has hundreds of clients, cost of client systems is a big problem. Naturally, a Web-based system is the most effective solution. But a Web browser could not display medical images with certain image processing such as a lookup table transformation. We developed a Web-based medical image display system using Web browser and on-demand server-side image processing. All images displayed on a Web page are generated from DICOM files on a server, delivered on-demand. User interaction on the Web page is handled by a client-side scripting technology such as JavaScript. This combination makes a look-and-feel of an imaging workstation not only for its functionality but also for its speed. Real time update of images with tracing mouse motion is achieved on Web browser without any client-side image processing which may be done by client-side plug-in technology such as Java Applets or ActiveX. We tested performance of the system in three cases. Single client, small number of clients in a fast speed network, and large number of clients in a normal speed network. The result shows that there are very slight overhead for communication and very scalable in number of clients.

  9. Adaptation of web pages and images for mobile applications

    NASA Astrophysics Data System (ADS)

    Kopf, Stephan; Guthier, Benjamin; Lemelson, Hendrik; Effelsberg, Wolfgang

    2009-02-01

    In this paper, we introduce our new visualization service which presents web pages and images on arbitrary devices with differing display resolutions. We analyze the layout of a web page and simplify its structure and formatting rules. The small screen of a mobile device is used much better this way. Our new image adaptation service combines several techniques. In a first step, border regions which do not contain relevant semantic content are identified. Cropping is used to remove these regions. Attention objects are identified in a second step. We use face detection, text detection and contrast based saliency maps to identify these objects and combine them into a region of interest. Optionally, the seam carving technique can be used to remove inner parts of an image. Additionally, we have developed a software tool to validate, add, delete, or modify all automatically extracted data. This tool also simulates different mobile devices, so that the user gets a feeling of how an adapted web page will look like. We have performed user studies to evaluate our web and image adaptation approach. Questions regarding software ergonomics, quality of the adapted content, and perceived benefit of the adaptation were asked.

  10. Radar Images of the Earth and the World Wide Web

    NASA Technical Reports Server (NTRS)

    Chapman, B.; Freeman, A.

    1995-01-01

    A perspective of NASA's Jet Propulsion Laboratory as a center of planetary exploration, and its involvement in studying the earth from space is given. Remote sensing, radar maps, land topography, snow cover properties, vegetation type, biomass content, moisture levels, and ocean data are items discussed related to earth orbiting satellite imaging radar. World Wide Web viewing of this content is discussed.

  11. World-Wide Web Tools for Locating Planetary Images

    NASA Technical Reports Server (NTRS)

    Kanefsky, Bob; Deiss, Ron (Technical Monitor)

    1995-01-01

    The explosive growth of the World-Wide Web (WWW) in the past year has made it feasible to provide interactive graphical tools to assist scientists in locating planetary images. The highest available resolution images of any site of interest can be quickly found on a map or plot, and, if online, displayed immediately on nearly any computer equipped with a color screen, an Internet connection, and any of the free WWW browsers. The same tools may also be of interest to educators, students, and the general public. Image finding tools have been implemented covering most of the solar system: Earth, Mars, and the moons and planets imaged by Voyager. The Mars image-finder, which plots the footprints of all the high-resolution Viking Orbiter images and can be used to display any that are available online, also contains a complete scrollable atlas and hypertext gazetteer to help locating areas. The Earth image-finder is linked to thousands of Shuttle images stored at NASA/JSC, and displays them as red dots on a globe. The Voyager image-finder plots images as dots, by longitude and apparent target size, linked to online images. The locator (URL) for the top-level page is http: //ic-www.arc.nasa.gov/ic/projects/bayes-group/Atlas/. Through the efforts of the Planetary Data System and other organizations, hundreds of thousands of planetary images are now available on CD-ROM, and many of these have been made available on the WWW. However, locating images of a desired site is still problematic, in practice. For example, many scientists studying Mars use digital image maps, which are one third the resolution of Viking Orbiter survey images. When they douse Viking Orbiter images, they often work with photographically printed hardcopies, which lack the flexibility of digital images: magnification, contrast stretching, and other basic image-processing techniques offered by off-the-shelf software. From the perspective of someone working on an experimental image processing technique for super-resolution, the discovery that potential users are often not using the highest resolution already available, nor using conventional image processing techniques, was surprising. This motivated the present work.

  12. Web-based platform for collaborative medical imaging research

    NASA Astrophysics Data System (ADS)

    Rittner, Leticia; Bento, Mariana P.; Costa, André L.; Souza, Roberto M.; Machado, Rubens C.; Lotufo, Roberto A.

    2015-03-01

    Medical imaging research depends basically on the availability of large image collections, image processing and analysis algorithms, hardware and a multidisciplinary research team. It has to be reproducible, free of errors, fast, accessible through a large variety of devices spread around research centers and conducted simultaneously by a multidisciplinary team. Therefore, we propose a collaborative research environment, named Adessowiki, where tools and datasets are integrated and readily available in the Internet through a web browser. Moreover, processing history and all intermediate results are stored and displayed in automatic generated web pages for each object in the research project or clinical study. It requires no installation or configuration from the client side and offers centralized tools and specialized hardware resources, since processing takes place in the cloud.

  13. Using Drumplot Generated Images on a Web Page Page 1 of 2 Using Drumplot Generated Images on a Web Page

    E-print Network

    Polly, David

    not include instructions on FTP'ing the image to your web server. 3. A scheduler program like Microsoft space between our batch file : copy C:\\unzipped\\drumplot\\PPOHH-7062Z4.gif \\\\border\\apps at a given time(s)/day(s) using Microsoft Scheduler or EZScheduler. This will move the newly generated gif

  14. Impact of Internet Images: Impression-Formation Effects of University Web Site Images

    ERIC Educational Resources Information Center

    Ramasubramanian, Srividya; Gyure, James F.; Mursi, Nasreen M.

    2002-01-01

    Institutions of higher education are increasingly becoming dependent on Web-based marketing to reach out to their target audiences. The current empirical study examines the types of impressions formed by prospective students based on exposure to different university Web site images. A between-subjects experiment was conducted using four identical…

  15. Heterogeneous Graph Propagation for Large-Scale Web Image Search.

    PubMed

    Xie, Lingxi; Tian, Qi; Zhou, Wengang; Zhang, Bo

    2015-11-01

    State-of-the-art web image search frameworks are often based on the bag-of-visual-words (BoVWs) model and the inverted index structure. Despite the simplicity, efficiency, and scalability, they often suffer from low precision and/or recall, due to the limited stability of local features and the considerable information loss on the quantization stage. To refine the quality of retrieved images, various postprocessing methods have been adopted after the initial search process. In this paper, we investigate the online querying process from a graph-based perspective. We introduce a heterogeneous graph model containing both image and feature nodes explicitly, and propose an efficient reranking approach consisting of two successive modules, i.e., incremental query expansion and image-feature voting, to improve the recall and precision, respectively. Compared with the conventional reranking algorithms, our method does not require using geometric information of visual words, therefore enjoys low consumptions of both time and memory. Moreover, our method is independent of the initial search process, and could cooperate with many BoVW-based image search pipelines, or adopted after other postprocessing algorithms. We evaluate our approach on large-scale image search tasks and verify its competitive search performance. PMID:25974934

  16. A Preliminary Mapping of Web Queries Using Existing Image Query Schemes.

    ERIC Educational Resources Information Center

    Jansen, Bernard J.

    End user searching on the Web has become the primary method of locating images for many people. This study investigates the nature of Web image queries by attempting to map them to known image classification schemes. In this study, approximately 100,000 image queries from a major Web search engine were collected in 1997, 1999, and 2001. A…

  17. Web-Based Image Viewer for Monitoring High-Definition Agricultural Images

    NASA Astrophysics Data System (ADS)

    Kobayashi, Kazuki; Toda, Shohei; Kobayashi, Fumitoshi; Saito, Yasunori

    This paper describes a Web-based image viewer which was developed to monitor high-definition agricultural images. In the cultivation of crops, physiological data and environmental data are important to increase crop yields. However, it is a burden for farmers to collect such data. Against this backdrop, the authors developed a monitoring system to automatically collect high-definition crop images, which can be viewed on a specialized Web-based image viewer. Users can easily observe detailed crop images over the Internet and easily find differences among the images. The authors experimentally installed the monitoring system in an apple orchard and observed the apples growing there. The system has been operating since August 11, 2009. In this paper, we confirm the ability of the monitoring system to perform detailed observations, including tracing the progress of a disease that affects the growth of an apple.

  18. Design and evaluation of web-based image transmission and display with different protocols

    NASA Astrophysics Data System (ADS)

    Tan, Bin; Chen, Kuangyi; Zheng, Xichuan; Zhang, Jianguo

    2011-03-01

    There are many Web-based image accessing technologies used in medical imaging area, such as component-based (ActiveX Control) thick client Web display, Zerofootprint thin client Web viewer (or called server side processing Web viewer), Flash Rich Internet Application(RIA) ,or HTML5 based Web display. Different Web display methods have different peformance in different network environment. In this presenation, we give an evaluation on two developed Web based image display systems. The first one is used for thin client Web display. It works between a PACS Web server with WADO interface and thin client. The PACS Web server provides JPEG format images to HTML pages. The second one is for thick client Web display. It works between a PACS Web server with WADO interface and thick client running in browsers containing ActiveX control, Flash RIA program or HTML5 scripts. The PACS Web server provides native DICOM format images or JPIP stream for theses clients.

  19. HRSCview-web: a web-based exploration system for Mars Express HRSC images

    NASA Astrophysics Data System (ADS)

    Michael, G.; van Gasselt, S.; Walter, S.; Neukum, G.; Jaumann, R.

    To increase the usability and accessibility of the now very large Mars Express HRSC colour stereo image dataset (now exceeding 2 TB map-projected) to the science community we have implemented a system for exploring the data via the web, and providing access to download the full map-projected science dataproducts. The system may be accessed using a normal browser from a joint website of the Free University of Berlin and the German Aerospace Center (DLR). It is based on HRSCview, a standalone software tool for working with map-projected HRSC data, and which is also available for working with downloaded dataproducts. The main feature of HRSCview-web is that it permits exploration within the images by carrying out on-the-fly data-subsetting, stretching and compositing, and in the case of perspective views, projection. This means regions of interest can be explored at full resolution without needing to download full dataproduct sets. It is possible to view colour and elevation composites with nadir images (via HSV transform) and select different colour stretches or infra-red channel substitution. It offers perspective views with a choice of viewpoint and exaggeration. Images are explored using Mars surface coordinates, making it simple to move between multiple images of the same location, and also to move from a global image- footprint map directly into the HRSC image at a position of interest. The map scale of the view can be selected; distance and elevation scale bars are provided. Images can be accessed by orbit/image number as well as via the footprint map. In either case, a link is provided to a dataproduct page, from where the full map-projected science dataproduct set can be downloaded. In the first release it is foreseen that elevation composites will be based on the HRSC Preliminary 200m DTMs generated at the German Aerospace Center (DLR), which will not be available as downloadable dataproducts. With time, these will be supplemented or superseded by higher resolution archival DTMs which will become available for download.

  20. Youpi: A Web-based Astronomical Image Processing Pipeline

    NASA Astrophysics Data System (ADS)

    Monnerville, M.; Sémah, G.

    2010-12-01

    Youpi stands for “YOUpi is your processing PIpeline”. It is a portable, easy to use web application providing high level functionalities to perform data reduction on scientific FITS images. It is built on top of open source processing tools that are released to the community by Terapix, in order to organize your data on a computer cluster, to manage your processing jobs in real time and to facilitate teamwork by allowing fine-grain sharing of results and data. On the server side, Youpi is written in the Python programming language and uses the Django web framework. On the client side, Ajax techniques are used along with the Prototype and script.aculo.us Javascript librairies.

  1. Youpi, a Web-based Astronomical Image Processing Pipeline

    E-print Network

    Monnerville, M

    2010-01-01

    Youpi stands for "YOUpi is your processing PIpeline". It is a portable, easy to use web application providing high level functionalities to perform data reduction on scientific FITS images. It is built on top of open source processing tools that are released to the community by Terapix, in order to organize your data on a computer cluster, to manage your processing jobs in real time and to facilitate teamwork by allowing fine-grain sharing of results and data. On the server side, Youpi is written in the Python programming language and uses the Django web framework. On the client side, Ajax techniques are used along with the Prototype and script.aculo.us Javascript librairies.

  2. Face retrieval in video sequences using Web images database

    NASA Astrophysics Data System (ADS)

    Leo, M.; Battisti, F.; Carli, M.; Neri, A.

    2015-03-01

    Face processing techniques for automatic recognition in broadcast video attract the research interest because of its value in applications, such as video indexing, retrieval, and summarization. In multimedia press review, the automatic annotation of broadcasting news programs is a challenging task because people can appear with large appearance variations such as hair styles, illumination conditions and poses that make the comparison between similar faces more difficult. In this paper a technique for automatic face identification in TV broadcasting programs based on a gallery of faces downloaded from Web is proposed. The approach is based on a joint use of Scale Invariant Feature Transform descriptor and Eigenfaces-based algorithms and it has been tested on video sequences using a database of images acquired starting from a web search. Experimental results show that the joint use of these two approaches improves the recognition rate in case of use Standard Definition (SD) and High Definition (HD) standards.

  3. Multimodal graph-based reranking for web image search.

    PubMed

    Wang, Meng; Li, Hao; Tao, Dacheng; Lu, Ke; Wu, Xindong

    2012-11-01

    This paper introduces a web image search reranking approach that explores multiple modalities in a graph-based learning scheme. Different from the conventional methods that usually adopt a single modality or integrate multiple modalities into a long feature vector, our approach can effectively integrate the learning of relevance scores, weights of modalities, and the distance metric and its scaling for each modality into a unified scheme. In this way, the effects of different modalities can be adaptively modulated and better reranking performance can be achieved. We conduct experiments on a large dataset that contains more than 1000 queries and 1 million images to evaluate our approach. Experimental results demonstrate that the proposed reranking approach is more robust than using each individual modality, and it also performs better than many existing methods. PMID:22829401

  4. Web Services for Dynamic Coloring of UAVSAR Images

    NASA Astrophysics Data System (ADS)

    Wang, Jun; Pierce, Marlon; Donnellan, Andrea; Parker, Jay

    2015-08-01

    QuakeSim has implemented a service-based Geographic Information System to enable users to access large amounts of Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) data through an online interface. The QuakeSim Interferometric Synthetic Aperture Radar (InSAR) profile tool calculates radar-observed displacement (from an unwrapped interferogram product) along user-specified lines. Pre-rendered thumbnails with InSAR fringe patterns are used to display interferogram and unwrapped phase images on a Google Map in the InSAR profile tool. One challenge with this tool lies in the user visually identifying regions of interest when drawing the profile line. This requires that the user correctly interpret the InSAR imagery, which currently uses fringe patterns. The mapping between pixel color and pixel value is not a one-to-one relationship from the InSAR fringe pattern, and it causes difficulty in understanding general displacement information for QuakeSim users. The goal of this work is to generate color maps that directly reflect the pixel values (displacement) as an addition to the pre-rendered images. Because of an extremely uneven distribution of pixel values on an InSAR image, a histogram-based, nonlinear color template generation algorithm is currently under development. A web service enables on-the-fly coloring of UAVSAR images with dynamically generated color templates.

  5. HI Imaging the Low Red-shift Cosmic Web

    E-print Network

    Robert Braun

    2004-09-09

    Only in recent years has the realization emerged that galaxies do not dominate the universal baryon budget but are merely the brightest pearls of an underlying Cosmic Web. Although the gas in these inter-galactic filaments is moderately to highly ionized, QSO absorption lines have shown that the surface area increases dramatically in going down to lower HI column densities. The first image of the Cosmic Web in HI emission has just been made of the Local Group filament connecting M31 and M33. The corresponding HI distribution function is in very good agreement with that of the QSO absorption lines, confirming the 30-fold increase in surface area expected between 10^19 cm^-2 and 10^17 cm^-2. The critical observational challenge is crossing the "HI desert", the range of log(N_HI) from about 19.5 down to 18, over which photo-ionization by the intergalactic radiation field produces an exponential decline in the neutral fraction from essentially unity down to a few percent. Nature is kinder again to the HI observer below log(N_HI)=18, where the neutral fraction decreases only very slowly with log(N_HI). With the SKA we can begin the systematic study of the Cosmic Web beyond the Local Group. With moderate integration times, the necessary resolution and sensitivity can be achieved out to distances beyond the Virgo cluster. When combined with targeted optical and UV absorption line observations, the total baryonic masses and enrichment histories of the Cosmic Web will be determined over the complete range of environmental over-densities.

  6. IMAGE EXPLORER: Astronomical Image Analysis on an HTML5-based Web Application

    NASA Astrophysics Data System (ADS)

    Gopu, A.; Hayashi, S.; Young, M. D.

    2014-05-01

    Large datasets produced by recent astronomical imagers cause the traditional paradigm for basic visual analysis - typically downloading one's entire image dataset and using desktop clients like DS9, Aladin, etc. - to not scale, despite advances in desktop computing power and storage. This paper describes Image Explorer, a web framework that offers several of the basic visualization and analysis functionality commonly provided by tools like DS9, on any HTML5 capable web browser on various platforms. It uses a combination of the modern HTML5 canvas, JavaScript, and several layers of lossless PNG tiles producted from the FITS image data. Astronomers are able to rapidly and simultaneously open up several images on their web-browser, adjust the intensity min/max cutoff or its scaling function, and zoom level, apply color-maps, view position and FITS header information, execute typically used data reduction codes on the corresponding FITS data using the FRIAA framework, and overlay tiles for source catalog objects, etc.

  7. Searching for Logo and Trademark Images on the Web Euripides G.M. Petrakis

    E-print Network

    Petrakis, Euripides G.M.

    Searching for Logo and Trademark Images on the Web Euripides G.M. Petrakis petrakis- age content characteristics of logo and trademark images in Web pages for enhancing the performance Vision General Terms Performance, Experimentation, Algorithms Keywords image retrieval, logo, trademark

  8. Harvesting Image Databases from the Web Dept. of Engineering Science

    E-print Network

    Zisserman, Andrew

    from an image search. The method in [9] involved visual clustering of the images by using probabilistic Latent Semantic Analysis (pLSA) [12] over a visual vocabulary. [15] used a Hierarchical Dirichlet Process Dirichlet Allocation (LDA) [6] on text only. Image clus­ ters for each topic are formed by selecting images

  9. Harvesting Image Databases from the Web Dept. of Engineering Science

    E-print Network

    Zisserman, Andrew

    from an image search. The method in [9] involved visual clustering of the images by using probabilistic Latent Semantic Analysis (pLSA) [12] over a visual vocabulary. [15] used a Hierarchical Dirichlet Process Dirichlet Allocation (LDA) [6] on text only. Image clus- ters for each topic are formed by selecting images

  10. Collection Fusion Using Bayesian Estimation of a Linear Regression Model in Image Databases on the Web.

    ERIC Educational Resources Information Center

    Kim, Deok-Hwan; Chung, Chin-Wan

    2003-01-01

    Discusses the collection fusion problem of image databases, concerned with retrieving relevant images by content based retrieval from image databases distributed on the Web. Focuses on a metaserver which selects image databases supporting similarity measures and proposes a new algorithm which exploits a probabilistic technique using Bayesian…

  11. Automatic Web Site Summarization by Image Content: A Case Study with Logo and Trademark

    E-print Network

    Petrakis, Euripides G.M.

    of corporate Web sites or of products presented there. The proposed method incorporates machine learning, Machine Learning I. INTRODUCTION THE World Wide Web (WWW) has grown substantially in recent years consistency of image content representation and high quality results, image- based summarization need

  12. Improving Concept-Based Web Image Retrieval by Mixing Semantically Similar Greek Queries

    ERIC Educational Resources Information Center

    Lazarinis, Fotis

    2008-01-01

    Purpose: Image searching is a common activity for web users. Search engines offer image retrieval services based on textual queries. Previous studies have shown that web searching is more demanding when the search is not in English and does not use a Latin-based language. The aim of this paper is to explore the behaviour of the major search…

  13. The characteristic wave decomposition and imaging in VTI media

    NASA Astrophysics Data System (ADS)

    Liu, Shaoyong; Wang, Huazhong; Feng, Bo

    2015-04-01

    The characteristic wave decomposition (CWD) method is presented, which takes full advantages of the local linear characteristics of the original seismic data. The CWD is performed by double beam forming for a compressed seismic wavefield in the characteristic ray parameter domain. Based on the beam-formed wavefield in characteristic domain, a beam-based characteristic wave imaging method (CWI) is put forward. Due to the flexibility and efficiency to output angle gathers for velocity model building, the CWI is a useful alternative to Kirchhoff and wave-equation migrations. It alters the application of Kirchhoff migration which smears the seismic data in imaging domain along quasi-ellipsoid trajectories and it has the capacity for steep dip reflector imaging with turning waves. In this paper, the CWI method is applied to prestack depth migration in transverse isotropic with a vertical symmetry (VTI) media. Compared with the conventional Kirchhoff migration methods, the proposed CWI method has a theoretical speedup of 1-2 orders. Besides, it can handle low signal-to-noise-ratio (SNR) data and target oriented imaging conveniently, and angle gathers can be produced naturally by CWI. Consequently, the CWI is an efficient technique for large scale seismic imaging and angle gather outputting. The direct mapping scheme from data space to model space establishes the relation between the characteristic data and the subsurface reflector, which can be used for the subsequent tomography conveniently. Some benchmark tests demonstrate the effectiveness of this method.

  14. CometCIEF: A web-based image enhancement facility to digitally enhance images of cometary comae

    NASA Astrophysics Data System (ADS)

    Martin, M. Patrick; Samarasinha, Nalin; Larson, Stephen

    2015-12-01

    We present details of an online web facility for enhancing coma images of comets. This facility, the Cometary Coma Image Enhancement Facility (CometCIEF), allows a user to enhance FITS images using five advanced image enhancement techniques which were not previously available as an open source. The resultant enhanced image as well as intermediate images produced during the enhancement process can then be downloaded as FITS images. We provide additional documentation and source codes for the user to download at the Facility, available at http://www.psi.edu/research/cometimen.

  15. An attribute-assisted reranking model for web image search.

    PubMed

    Cai, Junjie; Zha, Zheng-Jun; Wang, Meng; Zhang, Shiliang; Tian, Qi

    2015-01-01

    Image search reranking is an effective approach to refine the text-based image search result. Most existing reranking approaches are based on low-level visual features. In this paper, we propose to exploit semantic attributes for image search reranking. Based on the classifiers for all the predefined attributes, each image is represented by an attribute feature consisting of the responses from these classifiers. A hypergraph is then used to model the relationship between images by integrating low-level visual features and attribute features. Hypergraph ranking is then performed to order the images. Its basic principle is that visually similar images should have similar ranking scores. In this paper, we propose a visual-attribute joint hypergraph learning approach to simultaneously explore two information sources. A hypergraph is constructed to model the relationship of all images. We conduct experiments on more than 1,000 queries in MSRA-MMV2.0 data set. The experimental results demonstrate the effectiveness of our approach. PMID:25420262

  16. Relevance Preserving Projection and Ranking for Web Image Search Reranking.

    PubMed

    Ji, Zhong; Pang, Yanwei; Li, Xuelong

    2015-11-01

    An image search reranking (ISR) technique aims at refining text-based search results by mining images' visual content. Feature extraction and ranking function design are two key steps in ISR. Inspired by the idea of hypersphere in one-class classification, this paper proposes a feature extraction algorithm named hypersphere-based relevance preserving projection (HRPP) and a ranking function called hypersphere-based rank (H-Rank). Specifically, an HRPP is a spectral embedding algorithm to transform an original high-dimensional feature space into an intrinsically low-dimensional hypersphere space by preserving the manifold structure and a relevance relationship among the images. An H-Rank is a simple but effective ranking algorithm to sort the images by their distances to the hypersphere center. Moreover, to capture the user's intent with minimum human interaction, a reversed k-nearest neighbor (KNN) algorithm is proposed, which harvests enough pseudorelevant images by requiring that the user gives only one click on the initially searched images. The HRPP method with reversed KNN is named one-click-based HRPP (OC-HRPP). Finally, an OC-HRPP algorithm and the H-Rank algorithm form a new ISR method, H-reranking. Extensive experimental results on three large real-world data sets show that the proposed algorithms are effective. Moreover, the fact that only one relevant image is required to be labeled makes it has a strong practical significance. PMID:26011885

  17. A web-based solution for 3D medical image visualization

    NASA Astrophysics Data System (ADS)

    Hou, Xiaoshuai; Sun, Jianyong; Zhang, Jianguo

    2015-03-01

    In this presentation, we present a web-based 3D medical image visualization solution which enables interactive large medical image data processing and visualization over the web platform. To improve the efficiency of our solution, we adopt GPU accelerated techniques to process images on the server side while rapidly transferring images to the HTML5 supported web browser on the client side. Compared to traditional local visualization solution, our solution doesn't require the users to install extra software or download the whole volume dataset from PACS server. By designing this web-based solution, it is feasible for users to access the 3D medical image visualization service wherever the internet is available.

  18. Robust image obfuscation for privacy protection in Web 2.0 applications

    NASA Astrophysics Data System (ADS)

    Poller, Andreas; Steinebach, Martin; Liu, Huajian

    2012-03-01

    We present two approaches to robust image obfuscation based on permutation of image regions and channel intensity modulation. The proposed concept of robust image obfuscation is a step towards end-to-end security in Web 2.0 applications. It helps to protect the privacy of the users against threats caused by internet bots and web applications that extract biometric and other features from images for data-linkage purposes. The approaches described in this paper consider that images uploaded to Web 2.0 applications pass several transformations, such as scaling and JPEG compression, until the receiver downloads them. In contrast to existing approaches, our focus is on usability, therefore the primary goal is not a maximum of security but an acceptable trade-off between security and resulting image quality.

  19. Creating a web-based user-interface to the RSGS maps and images database 

    E-print Network

    Richardson, Chris

    2013-11-28

    This paper outlines a project in which the Royal Scottish Geographical Society’s Maps and Images database was modified to create a geolibrary. The facility to store spatial data was added to the database and a web-based ...

  20. Web Image Gathering with Region-based Bag-of-features

    E-print Network

    Yanai, Keiji

    1 Web Image Gathering with Region-based Bag-of-features and Multiple Instance Learning 1. Objective concepts for object recognition from the Web #12;Objective of this paper 4 Import region-based bag representation region-based bag-of-features [Ravinovich et al. ICCV 07] Classifier mi-SVM (multiple instance

  1. Web-Based Test Bed for Fingerprint Image Comparison Hany H. Ammar, Xuhui Zhen,

    E-print Network

    Ammar, Hany H.

    Web-Based Test Bed for Fingerprint Image Comparison Hany H. Ammar, Xuhui Zhen, Diaa Nassar, Yingzi-6109 hammar@wvu.edu Abstract This paper addresses the problem of testing an automated fingerprint comparison system. In this research, a web-based test bed is developed to assist the experiments in Fingerprint

  2. Transcoding Characteristics of Web Images Surendar Chandra, Ashish Gehani, Carla Schlatter Ellis and Amin Vahdat

    E-print Network

    Vahdat, Amin

    characteristics. Transcoding can be performed along a number of different axes and the specific transcoding images. We analyze the characteristics of images available on the Web through a representative trace. We networks such as high speed LANs, ISDN, DSL, cable and telephone modems to wireless technologies

  3. A Web simulation of medical image reconstruction and processing as an educational tool.

    PubMed

    Papamichail, Dimitrios; Pantelis, Evaggelos; Papagiannis, Panagiotis; Karaiskos, Pantelis; Georgiou, Evangelos

    2015-02-01

    Web educational resources integrating interactive simulation tools provide students with an in-depth understanding of the medical imaging process. The aim of this work was the development of a purely Web-based, open access, interactive application, as an ancillary learning tool in graduate and postgraduate medical imaging education, including a systematic evaluation of learning effectiveness. The pedagogic content of the educational Web portal was designed to cover the basic concepts of medical imaging reconstruction and processing, through the use of active learning and motivation, including learning simulations that closely resemble actual tomographic imaging systems. The user can implement image reconstruction and processing algorithms under a single user interface and manipulate various factors to understand the impact on image appearance. A questionnaire for pre- and post-training self-assessment was developed and integrated in the online application. The developed Web-based educational application introduces the trainee in the basic concepts of imaging through textual and graphical information and proceeds with a learning-by-doing approach. Trainees are encouraged to participate in a pre- and post-training questionnaire to assess their knowledge gain. An initial feedback from a group of graduate medical students showed that the developed course was considered as effective and well structured. An e-learning application on medical imaging integrating interactive simulation tools was developed and assessed in our institution. PMID:25000920

  4. Unbiased Metric Learning: On the Utilization of Multiple Datasets and Web Images for Softening Bias

    E-print Network

    Torresani, Lorenzo

    Unbiased Metric Learning: On the Utilization of Multiple Datasets and Web Images for Softening Bias of the forces driving the development is the availability of medium or large size high quality image datasets (e and practice sophisticated fea- ture designing and machine learning techniques. However, Torralba and Efros [23

  5. Interactive Display of High-Resolution Images on the World Wide Web.

    ERIC Educational Resources Information Center

    Clyde, Stephen W.; Hirschi, Gregory W.

    Viewing high-resolution images on the World Wide Web at a level of detail necessary for collaborative research is still a problem today, given the Internet's current bandwidth limitations and its ever increasing network traffic. ImageEyes is an interactive display tool being developed at Utah State University that addresses this problem by…

  6. A web-based image viewer for multiple PET-CT follow-up studies.

    PubMed

    Haraguchi, Daiki; Kim, Jinman; Kumar, Ashnil; Constantinescu, Liviu; Wen, Lingfeng; Feng, David Dagan

    2011-01-01

    There exist many viewers for single-modal medical images that are efficient and are equipped with powerful analysis tools. However, there is a distinct lack of efficient image viewers for multi-modality images, particularly for displaying multiple follow-up studies that depict a patient's response to treatment over time. Such viewers would be required to display large amounts of image data. In this study, we present the TAGIGEN viewer--a web-based image viewer designed specifically for the visualisation of multi-modality follow-up studies. We innovate by defining a series of dynamically generated image grid layouts that display sets of related images together in order to improve the ability to compare and assimilate the myriad images. We adopted a web-based client-server image streaming technology, thus enabling interactive navigation of the images in a computationally efficient manner. Furthermore, our web-based approach is interoperable and requires no software installation. We evaluated the ability of our viewer in displaying and understanding a patient's follow-up images in a case study with combined positron emission tomography and computed tomography (PET-CT) follow-up scans. We conducted a usability survey on 10 participants to measure the usefulness of our viewer, used as an outpatient viewer e.g. viewer designed for use by the patients, in tracking a patient's disease state across four PET-CT studies. Our initial results suggest that our viewer was able to efficiently visualise the patient data over time, and that the web-based implementation was fast (loading on average within 5.6 seconds with real-time navigation) and easy to use (overall survey score higher than 4 / 5). PMID:22255529

  7. A Taxonomy of Web Agents Zhisheng Huang , Anton Eliens ;+ , Alex van Ballegooij + , and Paul de Bra ;+

    E-print Network

    De Bra, Paul

    A Taxonomy of Web Agents Zhisheng Huang #3; , Anton EliË?ens #3;;+ , Alex van Ballegooij,eliensg@cs.vu.nl, alexb@cwi.nl, debra@win.tue.nl Abstract In this paper we propose a taxonomy of web agents, which as avatar­ embodied guides that help visitors to navigate in virtual en­ vironments. Our taxonomy must

  8. Using component technologies for web based wavelet enhanced mammographic image visualization.

    PubMed

    Sakellaropoulos, P; Costaridou, L; Panayiotakis, G

    2000-01-01

    The poor contrast detectability of mammography can be dealt with by domain specific software visualization tools. Remote desktop client access and time performance limitations of a previously reported visualization tool are addressed, aiming at more efficient visualization of mammographic image resources existing in web or PACS image servers. This effort is also motivated by the fact that at present, web browsers do not support domain-specific medical image visualization. To deal with desktop client access the tool was redesigned by exploring component technologies, enabling the integration of stand alone domain specific mammographic image functionality in a web browsing environment (web adaptation). The integration method is based on ActiveX Document Server technology. ActiveX Document is a part of Object Linking and Embedding (OLE) extensible systems object technology, offering new services in existing applications. The standard DICOM 3.0 part 10 compatible image-format specification Papyrus 3.0 is supported, in addition to standard digitization formats such as TIFF. The visualization functionality of the tool has been enhanced by including a fast wavelet transform implementation, which allows for real time wavelet based contrast enhancement and denoising operations. Initial use of the tool with mammograms of various breast structures demonstrated its potential in improving visualization of diagnostic mammographic features. Web adaptation and real time wavelet processing enhance the potential of the previously reported tool in remote diagnosis and education in mammography. PMID:11086968

  9. An Image Retrieval and Processing Expert System for the World Wide Web

    NASA Technical Reports Server (NTRS)

    Rodriguez, Ricardo; Rondon, Angelica; Bruno, Maria I.; Vasquez, Ramon

    1998-01-01

    This paper presents a system that is being developed in the Laboratory of Applied Remote Sensing and Image Processing at the University of P.R. at Mayaguez. It describes the components that constitute its architecture. The main elements are: a Data Warehouse, an Image Processing Engine, and an Expert System. Together, they provide a complete solution to researchers from different fields that make use of images in their investigations. Also, since it is available to the World Wide Web, it provides remote access and processing of images.

  10. The NOAO Deep Wide-Field Survey Image Cutout Web Service

    NASA Astrophysics Data System (ADS)

    Davis, Lindsey E.; Fitzpatrick, Mike; Tody, Doug

    A Web service for extracting multi-band science grade image cutouts from the NOAO Deep Wide-Field Survey (NDWFS) is described. The NDWFS data is stored as a multi-band database of large images on the NDWFS archive server. Given a cutout center and size the NDWFS image cutout service creates cutout images on-the-fly. The service provides high performance access to the survey data and isolates the client from the details of how the survey data is stored in the archive.

  11. Distributing medical images with internet technologies: a DICOM web server and a DICOM java viewer.

    PubMed

    Fernàndez-Bayó, J; Barbero, O; Rubies, C; Sentís, M; Donoso, L

    2000-01-01

    With the advent of filmless radiology, it becomes important to be able to distribute radiologic images digitally throughout an entire hospital. A new approach based on World Wide Web technologies was developed to accomplish this objective. This approach involves a Web server that allows the query and retrieval of images stored in a Digital Imaging and Communications in Medicine (DICOM) archive. The images can be viewed inside a Web browser with use of a small Java program known as the DICOM Java Viewer, which is executed inside the browser. The system offers several advantages over more traditional picture archiving and communication systems (PACS): It is easy to install and maintain, is platform independent, allows images to be manipulated and displayed efficiently, and is easy to integrate with existing systems that are already making use of Web technologies. The system is user-friendly and can easily be used from outside the hospital if a security policy is in place. The simplicity and flexibility of Internet technologies makes them highly preferable to the more complex PACS workstations. The system works well, especially with magnetic resonance and computed tomographic images, and can help improve and simplify interdepartmental relationships in a filmless hospital environment. PMID:10715352

  12. Web Image Re-Ranking UsingQuery-Specific Semantic Signatures.

    PubMed

    Xiaogang Wang; Shi Qiu; Ke Liu; Xiaoou Tang

    2014-04-01

    Image re-ranking, as an effective way to improve the results of web-based image search, has been adopted by current commercial search engines such as Bing and Google. Given a query keyword, a pool of images are first retrieved based on textual information. By asking the user to select a query image from the pool, the remaining images are re-ranked based on their visual similarities with the query image. A major challenge is that the similarities of visual features do not well correlate with images' semantic meanings which interpret users' search intention. Recently people proposed to match images in a semantic space which used attributes or reference classes closely related to the semantic meanings of images as basis. However, learning a universal visual semantic space to characterize highly diverse images from the web is difficult and inefficient. In this paper, we propose a novel image re-ranking framework, which automatically offline learns different semantic spaces for different query keywords. The visual features of images are projected into their related semantic spaces to get semantic signatures. At the online stage, images are re-ranked by comparing their semantic signatures obtained from the semantic space specified by the query keyword. The proposed query-specific semantic signatures significantly improve both the accuracy and efficiency of image re-ranking. The original visual features of thousands of dimensions can be projected to the semantic signatures as short as 25 dimensions. Experimental results show that 25-40 percent relative improvement has been achieved on re-ranking precisions compared with the state-of-the-art methods. PMID:26353202

  13. Web image annotation using two-step filtering on social tags

    NASA Astrophysics Data System (ADS)

    Cho, Sunyoung; Cha, Jaeseong; Byun, Hyeran

    2011-03-01

    Web image annotation has become an important issue with exploding web images and the necessity of effective image search. The social tags have recently utilized at image annotation because they can reflect the user's tagging tendency, and reduce the semantic gap. However, an effective filtering procedure is required to extract the relevant tags since the user's subjectivity and noisy tags. In this paper, we propose a two-step filtering on social tags for image annotation. This method conducts the filtering and verification tasks by analyzing the tags of visual neighbor images using voting method and co-occurrence analysis. Our method consists of the following three steps: 1) the tag candidate set is founded by searching the visual neighbor images, 2) from a given tag candidate set, coarse filtering is conducted by tag grouping and voting technique, 3) the dense filtering is conducted by using similarity verification for coarse filtered candidate tag set. To evaluate the performance of our approach, we conduct the experiments on a social-tagged image dataset obtained from Flickr. We compare the annotation accuracy between the voting method and our proposed method. Our experimental results show that our method has an improvement in image annotation.

  14. Design of a Web-tool for diagnostic clinical trials handling medical imaging research.

    PubMed

    Baltasar Sánchez, Alicia; González-Sistal, Angel

    2011-04-01

    New clinical studies in medicine are based on patients and controls using different imaging diagnostic modalities. Medical information systems are not designed for clinical trials employing clinical imaging. Although commercial software and communication systems focus on storage of image data, they are not suitable for storage and mining of new types of quantitative data. We sought to design a Web-tool to support diagnostic clinical trials involving different experts and hospitals or research centres. The image analysis of this project is based on skeletal X-ray imaging. It involves a computerised image method using quantitative analysis of regions of interest in healthy bone and skeletal metastases. The database is implemented with ASP.NET 3.5 and C# technologies for our Web-based application. For data storage, we chose MySQL v.5.0, one of the most popular open source databases. User logins were necessary, and access to patient data was logged for auditing. For security, all data transmissions were carried over encrypted connections. This Web-tool is available to users scattered at different locations; it allows an efficient organisation and storage of data (case report form) and images and allows each user to know precisely what his task is. The advantages of our Web-tool are as follows: (1) sustainability is guaranteed; (2) network locations for collection of data are secured; (3) all clinical information is stored together with the original images and the results derived from processed images and statistical analysis that enable us to perform retrospective studies; (4) changes are easily incorporated because of the modular architecture; and (5) assessment of trial data collected at different sites is centralised to reduce statistical variance. PMID:20517632

  15. Web tools for large-scale 3D biological images and atlases

    PubMed Central

    2012-01-01

    Background Large-scale volumetric biomedical image data of three or more dimensions are a significant challenge for distributed browsing and visualisation. Many images now exceed 10GB which for most users is too large to handle in terms of computer RAM and network bandwidth. This is aggravated when users need to access tens or hundreds of such images from an archive. Here we solve the problem for 2D section views through archive data delivering compressed tiled images enabling users to browse through very-large volume data in the context of a standard web-browser. The system provides an interactive visualisation for grey-level and colour 3D images including multiple image layers and spatial-data overlay. Results The standard Internet Imaging Protocol (IIP) has been extended to enable arbitrary 2D sectioning of 3D data as well a multi-layered images and indexed overlays. The extended protocol is termed IIP3D and we have implemented a matching server to deliver the protocol and a series of Ajax/Javascript client codes that will run in an Internet browser. We have tested the server software on a low-cost linux-based server for image volumes up to 135GB and 64 simultaneous users. The section views are delivered with response times independent of scale and orientation. The exemplar client provided multi-layer image views with user-controlled colour-filtering and overlays. Conclusions Interactive browsing of arbitrary sections through large biomedical-image volumes is made possible by use of an extended internet protocol and efficient server-based image tiling. The tools open the possibility of enabling fast access to large image archives without the requirement of whole image download and client computers with very large memory configurations. The system was demonstrated using a range of medical and biomedical image data extending up to 135GB for a single image volume. PMID:22676296

  16. Prototype of Partial Cutting Tool of Geological Map Images Distributed by Geological Web Map Service

    NASA Astrophysics Data System (ADS)

    Nonogaki, S.; Nemoto, T.

    2014-12-01

    Geological maps and topographical maps play an important role in disaster assessment, resource management, and environmental preservation. These map information have been distributed in accordance with Web services standards such as Web Map Service (WMS) and Web Map Tile Service (WMTS) recently. In this study, a partial cutting tool of geological map images distributed by geological WMTS was implemented with Free and Open Source Software. The tool mainly consists of two functions: display function and cutting function. The former function was implemented using OpenLayers. The latter function was implemented using Geospatial Data Abstraction Library (GDAL). All other small functions were implemented by PHP and Python. As a result, this tool allows not only displaying WMTS layer on web browser but also generating a geological map image of intended area and zoom level. At this moment, available WTMS layers are limited to the ones distributed by WMTS for the Seamless Digital Geological Map of Japan. The geological map image can be saved as GeoTIFF format and WebGL format. GeoTIFF is one of the georeferenced raster formats that is available in many kinds of Geographical Information System. WebGL is useful for confirming a relationship between geology and geography in 3D. In conclusion, the partial cutting tool developed in this study would contribute to create better conditions for promoting utilization of geological information. Future work is to increase the number of available WMTS layers and the types of output file format.

  17. A web-based framework for visualization, annotation, and automatic exploitation of whole-slide images

    E-print Network

    Liège, Université de

    A web-based framework for visualization, annotation, and automatic exploitation of whole database to allow collaborative annotations of images using ontology terms. Tree-based Learning for Automatic Segmentation and Quantification of Tissues Our recent generic machine learning algorithm using

  18. Annotating Web Images using NOVA: NOn-conVex group College of Computer Science,

    E-print Network

    Rui, Yong

    Annotating Web Images using NOVA: NOn-conVex group spArsity Fei Wu College of Computer Science, NOVA is the first to introduce non-convex penalty for group selection in high-dimensional heterogeneous it uses non-convex penalty, it achieves the consistency. We demonstrate the superior performance of NOVA

  19. Towards a semantic PACS: Using Semantic Web technology to represent imaging data.

    PubMed

    Van Soest, Johan; Lustberg, Tim; Grittner, Detlef; Marshall, M Scott; Persoon, Lucas; Nijsten, Bas; Feltens, Peter; Dekker, Andre

    2014-01-01

    The DICOM standard is ubiquitous within medicine. However, improved DICOM semantics would significantly enhance search operations. Furthermore, databases of current PACS systems are not flexible enough for the demands within image analysis research. In this paper, we investigated if we can use Semantic Web technology, to store and represent metadata of DICOM image files, as well as linking additional computational results to image metadata. Therefore, we developed a proof of concept containing two applications: one to store commonly used DICOM metadata in an RDF repository, and one to calculate imaging biomarkers based on DICOM images, and store the biomarker values in an RDF repository. This enabled us to search for all patients with a gross tumor volume calculated to be larger than 50 cc. We have shown that we can successfully store the DICOM metadata in an RDF repository and are refining our proof of concept with regards to volume naming, value representation, and the applications themselves. PMID:25160167

  20. Alaskan Auroral All-Sky Images on the World Wide Web

    NASA Technical Reports Server (NTRS)

    Stenbaek-Nielsen, H. C.

    1997-01-01

    In response to a 1995 NASA SPDS announcement of support for preservation and distribution of important data sets online, the Geophysical Institute, University of Alaska Fairbanks, Alaska, proposed to provide World Wide Web access to the Poker Flat Auroral All-sky Camera images in real time. The Poker auroral all-sky camera is located in the Davis Science Operation Center at Poker Flat Rocket Range about 30 miles north-east of Fairbanks, Alaska, and is connected, through a microwave link, with the Geophysical Institute where we maintain the data base linked to the Web. To protect the low light-level all-sky TV camera from damage due to excessive light, we only operate during the winter season when the moon is down. The camera and data acquisition is now fully computer controlled. Digital images are transmitted each minute to the Web linked data base where the data are available in a number of different presentations: (1) Individual JPEG compressed images (1 minute resolution); (2) Time lapse MPEG movie of the stored images; and (3) A meridional plot of the entire night activity.

  1. Server-based approach to web visualization of integrated 3-D medical image data.

    PubMed Central

    Poliakov, A. V.; Albright, E.; Corina, D.; Ojemann, G.; Martin, R. F.; Brinkley, J. F.

    2001-01-01

    Although computer processing power and network bandwidth are rapidly increasing, the average desktop is still not able to rapidly process large datasets such as 3-D medical image volumes. We have therefore developed a server side approach to this problem, in which a high performance graphics server accepts commands from web clients to load, process and render 3-D image volumes and models. The renderings are saved as 2-D snapshots on the server, where they are uploaded and displayed on the client. User interactions with the graphic interface on the client side are translated into additional commands to manipulate the 3-D scene, after which the server re-renders the scene and sends a new image to the client. Example forms-based and Java-based clients are described for a brain mapping application, but the techniques should be applicable to multiple domains where 3-D medical image visualization is of interest. PMID:11825248

  2. Weighted Link Analysis for Logo and Trademark Image Retrieval on the Web Epimenides Voutsakis, Euripides G.M. Petrakis

    E-print Network

    Petrakis, Euripides G.M.

    Weighted Link Analysis for Logo and Trademark Image Retrieval on the Web Epimenides VoutsakisASHOW is implemented and integrated into a fully automated Web retrieval system for logo and trade- mark images. 1 pages. · A complete and fully automated system is proposed and implemented for retrieving logo

  3. User Driven Image Stacking for ODI Data and Beyond via a Highly Customizable Web Interface

    NASA Astrophysics Data System (ADS)

    Hayashi, S.; Gopu, A.; Young, M. D.; Kotulla, R.

    2015-09-01

    While some astronomical archives have begun serving standard calibrated data products, the process of producing stacked images remains a challenge left to the end-user. The benefits of astronomical image stacking are well established, and dither patterns are recommended for almost all observing targets. Some archives automatically produce stacks of limited scientific usefulness without any fine-grained user or operator configurability. In this paper, we present PPA Stack, a web based stacking framework within the ODI - Portal, Pipeline, and Archive system. PPA Stack offers a web user interface with built-in heuristics (based on pointing, filter, and other metadata information) to pre-sort images into a set of likely stacks while still allowing the user or operator complete control over the images and parameters for each of the stacks they wish to produce. The user interface, designed using AngularJS, provides multiple views of the input dataset and parameters, all of which are synchronized in real time. A backend consisting of a Python application optimized for ODI data, wrapped around the SWarp software, handles the execution of stacking workflow jobs on Indiana University's Big Red II supercomputer, and the subsequent ingestion of the combined images back into the PPA archive. PPA Stack is designed to enable seamless integration of other stacking applications in the future, so users can select the most appropriate option for their science.

  4. Enhancing the Teaching of Digital Processing of Remote Sensing Image Course through Geospatial Web Processing Services

    NASA Astrophysics Data System (ADS)

    di, L.; Deng, M.

    2010-12-01

    Remote sensing (RS) is an essential method to collect data for Earth science research. Huge amount of remote sensing data, most of them in the image form, have been acquired. Almost all geography departments in the world offer courses in digital processing of remote sensing images. Such courses place emphasis on how to digitally process large amount of multi-source images for solving real world problems. However, due to the diversity and complexity of RS images and the shortcomings of current data and processing infrastructure, obstacles for effectively teaching such courses still remain. The major obstacles include 1) difficulties in finding, accessing, integrating and using massive RS images by students and educators, and 2) inadequate processing functions and computing facilities for students to freely explore the massive data. Recent development in geospatial Web processing service systems, which make massive data, computing powers, and processing capabilities to average Internet users anywhere in the world, promises the removal of the obstacles. The GeoBrain system developed by CSISS is an example of such systems. All functions available in GRASS Open Source GIS have been implemented as Web services in GeoBrain. Petabytes of remote sensing images in NASA data centers, the USGS Landsat data archive, and NOAA CLASS are accessible transparently and processable through GeoBrain. The GeoBrain system is operated on a high performance cluster server with large disk storage and fast Internet connection. All GeoBrain capabilities can be accessed by any Internet-connected Web browser. Dozens of universities have used GeoBrain as an ideal platform to support data-intensive remote sensing education. This presentation gives a specific example of using GeoBrain geoprocessing services to enhance the teaching of GGS 588, Digital Remote Sensing taught at the Department of Geography and Geoinformation Science, George Mason University. The course uses the textbook "Introductory Digital Image Processing, A Remote Sensing Perspective" authored by John Jensen. The textbook is widely adopted in the geography departments around the world for training students on digital processing of remote sensing images. In the traditional teaching setting for the course, the instructor prepares a set of sample remote sensing images to be used for the course. Commercial desktop remote sensing software, such as ERDAS, is used for students to do the lab exercises. The students have to do the excurses in the lab and can only use the simple images. For this specific course at GMU, we developed GeoBrain-based lab excurses for the course. With GeoBrain, students now can explore petabytes of remote sensing images in the NASA, NOAA, and USGS data archives instead of dealing only with sample images. Students have a much more powerful computing facility available for their lab excurses. They can explore the data and do the excurses any time at any place they want as long as they can access the Internet through the Web Browser. The feedbacks from students are all very positive about the learning experience on the digital image processing with the help of GeoBrain web processing services. The teaching/lab materials and GeoBrain services are freely available to anyone at http://www.laits.gmu.edu.

  5. Probabilistic person identification in TV news programs using image web database

    NASA Astrophysics Data System (ADS)

    Battisti, F.; Carli, M.; Leo, M.; Neri, A.

    2014-02-01

    The automatic labeling of faces in TV broadcasting is still a challenging problem. The high variability in view points, facial expressions, general appearance, and lighting conditions, as well as occlusions, rapid shot changes, and camera motions, produce significant variations in image appearance. The application of automatic tools for face recognition is not yet fully established and the human intervention is needed. In this paper, we deal with the automatic face recognition in TV broadcasting programs. The target of the proposed method is to identify the presence of a specific person in a video by means of a set of images downloaded from Web using a specific search key.

  6. Data Ontology and an Information System Realization for Web-Based Management of Image Measurements

    PubMed Central

    Prodanov, Dimiter

    2011-01-01

    Image acquisition, processing, and quantification of objects (morphometry) require the integration of data inputs and outputs originating from heterogeneous sources. Management of the data exchange along this workflow in a systematic manner poses several challenges, notably the description of the heterogeneous meta-data and the interoperability between the software used. The use of integrated software solutions for morphometry and management of imaging data in combination with ontologies can reduce meta-data loss and greatly facilitate subsequent data analysis. This paper presents an integrated information system, called LabIS. The system has the objectives to automate (i) the process of storage, annotation, and querying of image measurements and (ii) to provide means for data sharing with third party applications consuming measurement data using open standard communication protocols. LabIS implements 3-tier architecture with a relational database back-end and an application logic middle tier realizing web-based user interface for reporting and annotation and a web-service communication layer. The image processing and morphometry functionality is backed by interoperability with ImageJ, a public domain image processing software, via integrated clients. Instrumental for the latter feat was the construction of a data ontology representing the common measurement data model. LabIS supports user profiling and can store arbitrary types of measurements, regions of interest, calibrations, and ImageJ settings. Interpretation of the stored measurements is facilitated by atlas mapping and ontology-based markup. The system can be used as an experimental workflow management tool allowing for description and reporting of the performed experiments. LabIS can be also used as a measurements repository that can be transparently accessed by computational environments, such as Matlab. Finally, the system can be used as a data sharing tool. PMID:22275893

  7. What Can Pictures Tell Us About Web Pages? Improving Document Search Using Images.

    PubMed

    Rodriguez-Vaamonde, Sergio; Torresani, Lorenzo; Fitzgibbon, Andrew W

    2015-06-01

    Traditional Web search engines do not use the images in the HTML pages to find relevant documents for a given query. Instead, they typically operate by computing a measure of agreement between the keywords provided by the user and only the text portion of each page. In this paper we study whether the content of the pictures appearing in a Web page can be used to enrich the semantic description of an HTML document and consequently boost the performance of a keyword-based search engine. We present a Web-scalable system that exploits a pure text-based search engine to find an initial set of candidate documents for a given query. Then, the candidate set is reranked using visual information extracted from the images contained in the pages. The resulting system retains the computational efficiency of traditional text-based search engines with only a small additional storage cost needed to encode the visual information. We test our approach on one of the TREC Million Query Track benchmarks where we show that the exploitation of visual content yields improvement in accuracies for two distinct text-based search engines, including the system with the best reported performance on this benchmark. We further validate our approach by collecting document relevance judgements on our search results using Amazon Mechanical Turk. The results of this experiment confirm the improvement in accuracy produced by our image-based reranker over a pure text-based system. PMID:26357348

  8. Web tools for effective retrieval, visualization, and evaluation of cardiology medical images and records

    NASA Astrophysics Data System (ADS)

    Masseroli, Marco; Pinciroli, Francesco

    2000-12-01

    To provide easy retrieval, integration and evaluation of multimodal cardiology images and data in a web browser environment, distributed application technologies and java programming were used to implement a client-server architecture based on software agents. The server side manages secure connections and queries to heterogeneous remote databases and file systems containing patient personal and clinical data. The client side is a Java applet running in a web browser and providing a friendly medical user interface to perform queries on patient and medical test dat and integrate and visualize properly the various query results. A set of tools based on Java Advanced Imaging API enables to process and analyze the retrieved cardiology images, and quantify their features in different regions of interest. The platform-independence Java technology makes the developed prototype easy to be managed in a centralized form and provided in each site where an intranet or internet connection can be located. Giving the healthcare providers effective tools for querying, visualizing and evaluating comprehensively cardiology medical images and records in all locations where they can need them- i.e. emergency, operating theaters, ward, or even outpatient clinics- the developed prototype represents an important aid in providing more efficient diagnoses and medical treatments.

  9. A New Web-Based System for Unsupervised Classification of Satellite Images from the Google Maps Engine

    E-print Network

    Plaza, Antonio J.

    A New Web-Based System for Unsupervised Classification of Satellite Images from the Google Maps images available from the Google Maps engine. The system has been developed using the Google Maps API classification, Google Maps API 1. INTRODUCTION Remote sensing image analysis and interpretation have become key

  10. CometCIEF: A Web-based Image Enhancement Facility to digitally enhance images of cometary comae

    NASA Astrophysics Data System (ADS)

    Samarasinha, N.; Martin, P.; Larson, S.

    2014-07-01

    The detailed analysis of cometary comae provides an observational basis to investigate both the nucleus as well as the coma of comets. The structures in the coma are indicative of the anisotropic emission of gas and dust from the nucleus. Therefore, accurate identifications and measurements of spatial information related to coma structures are needed for realistic quantitative interpretation of coma observations. In many instances, the coma features are only a few percent above the ambient background coma and require enhancement of such features to unambiguously identify them, to make measurements on them, and to carry out subsequent detailed analyses. There is a number of image enhancement techniques used by cometary scientists. Despite this, the wider applicability of many advanced enhancement techniques is limited due to the non-availability of relevant software as open source. To alleviate this, we are making available a number of such techniques using a user-friendly web interface. In this image enhancement facility available at http://www.psi.edu/research/cometimen one can upload a fits format image of a cometary coma and digitally enhance it using an image enhancement technique of the user's choice. The user can then easily download the enhanced image as well as any associated images generated during the enhancement as fits files for detailed analysis later at the user's institution. The available image enhancement techniques at the facility are: (a) division by azimuthal average; (b) division by azimuthal median; (c) azimuthal renormalization; (d) division by 1/? profile, where ? is the sky-plane projected distance from the nucleus; and (e) radially variable spatial filtering. The site provides documentation describing the above enhancement techniques as well as a tutorial showing the application of the enhancement techniques to actual cometary images and how the results may vary with different input parameters. In addition, the source codes as well as the executables are available for the user to download. To provide a secure facility, all the images uploaded by the users as well as the images created at the facility are deleted after 1-2 hours using a script, which runs every hour. At the Asteroids, Comet, Meteors 2014 meeting, we will present a description of CometCIEF and its capabilities as well as the effective usage of the facility to maximize the science return.

  11. Data Reconnaissance with MAST's Web-Based Spectral and Imaging ``Scrapbooks"

    NASA Astrophysics Data System (ADS)

    Smith, M. A.; Christian, D. J.; Imhoff, C.; Levay, K.; Postman, M.; Padovani, P.; Thompson, R. W.

    2001-05-01

    The Multi-Mission Archive at STScI (MAST) announces the release of ``spectral and imaging scrapbooks" for web-based investigator use. These tools are designed to acquaint the user instantly with the general properties of the spectrum or surrounding sky region of a source of interest. For an input object name or set of coordinates, these tools return a montage of thumbnail spectra or images in several wavelength regions from the MAST archives. Currently the spectral scrapbook serves as a jumping-off point for data retrieval, FITS headers, catalog information, and published papers for non-HST datasets (data retrieval is not yet implemented for HST datasets). The imaging scrapbook depicts the sky within a specified search radius, currently for WFPC2 data, and permits the downloading of exlarged images and header information. In subsequent versions, the utility of these tools will be expanded, e.g., to provide merged, ``optimal," or on-the-fly calculated spectra. MAST anticipates the addition of spectra and images from other NASA archival data centers. URL links to these tools are provided in the MAST home page at http://archive.stsci.edu/mast/. On-line demonstrations will be given.

  12. Large Scale Near-Duplicate Celebrity Web Images Retrieval Using Visual and Textual Features

    PubMed Central

    Wang, Cheng; Zhang, Xin; Wang, Hui

    2013-01-01

    Near-duplicate image retrieval is a classical research problem in computer vision toward many applications such as image annotation and content-based image retrieval. On the web, near-duplication is more prevalent in queries for celebrities and historical figures which are of particular interest to the end users. Existing methods such as bag-of-visual-words (BoVW) solve this problem mainly by exploiting purely visual features. To overcome this limitation, this paper proposes a novel text-based data-driven reranking framework, which utilizes textual features and is combined with state-of-art BoVW schemes. Under this framework, the input of the retrieval procedure is still only a query image. To verify the proposed approach, a dataset of 2 million images of 1089 different celebrities together with their accompanying texts is constructed. In addition, we comprehensively analyze the different categories of near duplication observed in our constructed dataset. Experimental results on this dataset show that the proposed framework can achieve higher mean average precision (mAP) with an improvement of 21% on average in comparison with the approaches based only on visual features, while does not notably prolong the retrieval time. PMID:24163631

  13. Ontology-guided organ detection to retrieve web images of disease manifestation: towards the construction of a consumer-based health image library

    PubMed Central

    Chen, Yang; Ren, Xiaofeng; Zhang, Guo-Qiang; Xu, Rong

    2013-01-01

    Background Visual information is a crucial aspect of medical knowledge. Building a comprehensive medical image base, in the spirit of the Unified Medical Language System (UMLS), would greatly benefit patient education and self-care. However, collection and annotation of such a large-scale image base is challenging. Objective To combine visual object detection techniques with medical ontology to automatically mine web photos and retrieve a large number of disease manifestation images with minimal manual labeling effort. Methods As a proof of concept, we first learnt five organ detectors on three detection scales for eyes, ears, lips, hands, and feet. Given a disease, we used information from the UMLS to select affected body parts, ran the pretrained organ detectors on web images, and combined the detection outputs to retrieve disease images. Results Compared with a supervised image retrieval approach that requires training images for every disease, our ontology-guided approach exploits shared visual information of body parts across diseases. In retrieving 2220 web images of 32 diseases, we reduced manual labeling effort to 15.6% while improving the average precision by 3.9% from 77.7% to 81.6%. For 40.6% of the diseases, we improved the precision by 10%. Conclusions The results confirm the concept that the web is a feasible source for automatic disease image retrieval for health image database construction. Our approach requires a small amount of manual effort to collect complex disease images, and to annotate them by standard medical ontology terms. PMID:23792805

  14. MedXViewer: an extensible web-enabled software package for medical imaging

    NASA Astrophysics Data System (ADS)

    Looney, P. T.; Young, K. C.; Mackenzie, Alistair; Halling-Brown, Mark D.

    2014-03-01

    MedXViewer (Medical eXtensible Viewer) is an application designed to allow workstation-independent, PACS-less viewing and interaction with anonymised medical images (e.g. observer studies). The application was initially implemented for use in digital mammography and tomosynthesis but the flexible software design allows it to be easily extended to other imaging modalities. Regions of interest can be identified by a user and any associated information about a mark, an image or a study can be added. The questions and settings can be easily configured depending on the need of the research allowing both ROC and FROC studies to be performed. The extensible nature of the design allows for other functionality and hanging protocols to be available for each study. Panning, windowing, zooming and moving through slices are all available while modality-specific features can be easily enabled e.g. quadrant zooming in mammographic studies. MedXViewer can integrate with a web-based image database allowing results and images to be stored centrally. The software and images can be downloaded remotely from this centralised data-store. Alternatively, the software can run without a network connection where the images and results can be encrypted and stored locally on a machine or external drive. Due to the advanced workstation-style functionality, the simple deployment on heterogeneous systems over the internet without a requirement for administrative access and the ability to utilise a centralised database, MedXViewer has been used for running remote paper-less observer studies and is capable of providing a training infrastructure and co-ordinating remote collaborative viewing sessions (e.g. cancer reviews, interesting cases).

  15. Panoramic-image-based rendering solutions for visualizing remote locations via the web

    NASA Astrophysics Data System (ADS)

    Obeysekare, Upul R.; Egts, David; Bethmann, John

    2000-05-01

    With advances in panoramic image-based rendering techniques and the rapid expansion of web advertising, new techniques are emerging for visualizing remote locations on the WWW. Success of these techniques depends on how easy and inexpensive it is to develop a new type of web content that provides pseudo 3D visualization at home, 24-hours a day. Furthermore, the acceptance of this new visualization medium depends on the effectiveness of the familiarization tools by a segment of the population that was never exposed to this type of visualization. This paper addresses various hardware and software solutions available to collect, produce, and view panoramic content. While cost and effectiveness of building the content is being addressed using a few commercial hardware solutions, effectiveness of familiarization tools is evaluated using a few sample data sets.

  16. OpenMSI: A High-Performance Web-Based Platform for Mass Spectrometry Imaging

    SciTech Connect

    Rubel, Oliver; Greiner, Annette; Cholia, Shreyas; Louie, Katherine; Bethel, E. Wes; Northen, Trent R.; Bowen, Benjamin P.

    2013-10-02

    Mass spectrometry imaging (MSI) enables researchers to directly probe endogenous molecules directly within the architecture of the biological matrix. Unfortunately, efficient access, management, and analysis of the data generated by MSI approaches remain major challenges to this rapidly developing field. Despite the availability of numerous dedicated file formats and software packages, it is a widely held viewpoint that the biggest challenge is simply opening, sharing, and analyzing a file without loss of information. Here we present OpenMSI, a software framework and platform that addresses these challenges via an advanced, high-performance, extensible file format and Web API for remote data access (http://openmsi.nersc.gov). The OpenMSI file format supports storage of raw MSI data, metadata, and derived analyses in a single, self-describing format based on HDF5 and is supported by a large range of analysis software (e.g., Matlab and R) and programming languages (e.g., C++, Fortran, and Python). Careful optimization of the storage layout of MSI data sets using chunking, compression, and data replication accelerates common, selective data access operations while minimizing data storage requirements and are critical enablers of rapid data I/O. The OpenMSI file format has shown to provide >2000-fold improvement for image access operations, enabling spectrum and image retrieval in less than 0.3 s across the Internet even for 50 GB MSI data sets. To make remote high-performance compute resources accessible for analysis and to facilitate data sharing and collaboration, we describe an easy-to-use yet powerful Web API, enabling fast and convenient access to MSI data, metadata, and derived analysis results stored remotely to facilitate high-performance data analysis and enable implementation of Web based data sharing, visualization, and analysis.

  17. OpenMSI: a high-performance web-based platform for mass spectrometry imaging.

    PubMed

    Rübel, Oliver; Greiner, Annette; Cholia, Shreyas; Louie, Katherine; Bethel, E Wes; Northen, Trent R; Bowen, Benjamin P

    2013-11-01

    Mass spectrometry imaging (MSI) enables researchers to directly probe endogenous molecules directly within the architecture of the biological matrix. Unfortunately, efficient access, management, and analysis of the data generated by MSI approaches remain major challenges to this rapidly developing field. Despite the availability of numerous dedicated file formats and software packages, it is a widely held viewpoint that the biggest challenge is simply opening, sharing, and analyzing a file without loss of information. Here we present OpenMSI, a software framework and platform that addresses these challenges via an advanced, high-performance, extensible file format and Web API for remote data access (http://openmsi.nersc.gov). The OpenMSI file format supports storage of raw MSI data, metadata, and derived analyses in a single, self-describing format based on HDF5 and is supported by a large range of analysis software (e.g., Matlab and R) and programming languages (e.g., C++, Fortran, and Python). Careful optimization of the storage layout of MSI data sets using chunking, compression, and data replication accelerates common, selective data access operations while minimizing data storage requirements and are critical enablers of rapid data I/O. The OpenMSI file format has shown to provide >2000-fold improvement for image access operations, enabling spectrum and image retrieval in less than 0.3 s across the Internet even for 50 GB MSI data sets. To make remote high-performance compute resources accessible for analysis and to facilitate data sharing and collaboration, we describe an easy-to-use yet powerful Web API, enabling fast and convenient access to MSI data, metadata, and derived analysis results stored remotely to facilitate high-performance data analysis and enable implementation of Web based data sharing, visualization, and analysis. PMID:24087878

  18. A web-based procedure for liver segmentation in CT images

    NASA Astrophysics Data System (ADS)

    Yuan, Rong; Luo, Ming; Wang, Luyao; Xie, Qingguo

    2015-03-01

    Liver segmentation in CT images has been acknowledged as a basic and indispensable part in systems of computer aided liver surgery for operation design and risk evaluation. In this paper, we will introduce and implement a web-based procedure for liver segmentation to help radiologists and surgeons get an accurate result efficiently and expediently. Several clinical datasets are used to evaluate the accessibility and the accuracy. This procedure seems a promising approach for extraction of liver volumetry of various shapes. Moreover, it is possible for user to access the segmentation wherever the Internet is available without any specific machine.

  19. Research and development of web oriented remote sensing image publication system based on Servlet technique

    NASA Astrophysics Data System (ADS)

    Juanle, Wang; Shuang, Li; Yunqiang, Zhu

    2005-10-01

    According to the requirements of China National Scientific Data Sharing Program (NSDSP), the research and development of web oriented RS Image Publication System (RSIPS) is based on Java Servlet technique. The designing of RSIPS framework is composed of 3 tiers, which is Presentation Tier, Application Service Tier and Data Resource Tier. Presentation Tier provides user interface for data query, review and download. For the convenience of users, visual spatial query interface is included. Served as a middle tier, Application Service Tier controls all actions between users and databases. Data Resources Tier stores RS images in file and relationship databases. RSIPS is developed with cross platform programming based on Java Servlet tools, which is one of advanced techniques in J2EE architecture. RSIPS's prototype has been developed and applied in the geosciences clearinghouse practice which is among the experiment units of NSDSP in China.

  20. Comparing image quality of print-on-demand books and photobooks from web-based vendors

    NASA Astrophysics Data System (ADS)

    Phillips, Jonathan; Bajorski, Peter; Burns, Peter; Fredericks, Erin; Rosen, Mitchell

    2010-01-01

    Because of the emergence of e-commerce and developments in print engines designed for economical output of very short runs, there are increased business opportunities and consumer options for print-on-demand books and photobooks. The current state of these printing modes allows for direct uploading of book files via the web, printing on nonoffset printers, and distributing by standard parcel or mail delivery services. The goal of this research is to assess the image quality of print-on-demand books and photobooks produced by various Web-based vendors and to identify correlations between psychophysical results and objective metrics. Six vendors were identified for one-off (single-copy) print-on-demand books, and seven vendors were identified for photobooks. Participants rank ordered overall quality of a subset of individual pages from each book, where the pages included text, photographs, or a combination of the two. Observers also reported overall quality ratings and price estimates for the bound books. Objective metrics of color gamut, color accuracy, accuracy of International Color Consortium profile usage, eye-weighted root mean square L*, and cascaded modulation transfer acutance were obtained and compared to the observer responses. We introduce some new methods for normalizing data as well as for strengthening the statistical significance of the results. Our approach includes the use of latent mixed-effect models. We found statistically significant correlation with overall image quality and some of the spatial metrics, but correlations between psychophysical results and other objective metrics were weak or nonexistent. Strong correlation was found between psychophysical results of overall quality assessment and estimated price associated with quality. The photobook set of vendors reached higher image-quality ratings than the set of print-on-demand vendors. However, the photobook set had higher image-quality variability.

  1. Identification and description of the axillary web syndrome (AWS) by clinical signs, MRI and US imaging.

    PubMed

    Leduc, O; Fumière, E; Banse, S; Vandervorst, C; Clément, A; Parijs, T; Wilputte, F; Maquerlot, F; Ezquer Echandia, M; Tinlot, A; Leduc, A

    2014-12-01

    The Axillary Web Syndrome (AWS) follows surgery for breast neoplasia and consists of one, or more frequently two or three, cords of subcutaneous tissue. Cords originate from the axilla, spread to the antero-medial surface of the arm down to the elbow and then move into the antero-medial aspect of the forearm and sometimes into the root of the thumb. The purpose of this study was to compare two techniques, ultrasound (US) and Magnetic Resonance Imaging (MRI) for their sensitivity and accuracy in identifying AWS cords and to provide insights to the origin of this pathology. US examinations were performed on fifteen patients using a high frequency probe (17 MHz). We first palpated and marked the cord with location aided by maximum abduction. To identify the cord with MRI (1.5 Tesla), a catheter filled with a gel detectable under MRI was placed on the skin at the site of the cord. We found that in some US cases, the dynamic abduction maneuver was essential to facilitate detection of the cord. This dynamic method on ultrasound confirmed the precise location of the cord even if it was located deeper in the hypodermis fascia junction. US and MRI images revealed features of the cords and surrounding tissues. Imaging the cords was difficult with either of the imaging modalities. However, US seemed to be more efficient than MRI and allowed dynamic evaluation. Overall analysis of our study results supports a lymphatic origin of the AWS cord. PMID:25915977

  2. Feedstock and Web Analysis Using Mid-Infrared Diffuse Reflectance Spectroscopy and Imaging Spectroradiometry

    SciTech Connect

    G.L. Powell; J.E. Parks II

    1997-09-15

    Potential applications of mid-infrared (MIR) spectroscopy in the forest products industry include on-line analysis of feedstock and web materials; these applications differ dramatically in purpose, speed, and overall chemical heterogeneity. Characterization of feedstock will enable sorting of the stock and/or wet chemistry adjustment prior to the web stage of paper production. Sorting will require imaging of the stock as well as classification of the wide variety of chemistry found in recycled stock. At the opposite end of the manufacturing process, on-line analysis of the web will enable adjustment of machine parameters to maximize product quality and minimize waste. Spectroscopic requirements for web analysis include high-speed capability and measurement precision. If successful, both applications could result in a reduction of resource waste, a reduction of plant pollution, and a reduction of energy use while simultaneously improving product quality. Here the progress towards feedstock and web analysis with MIR spectroscopy is presented. To date, work has progressed in three main areas: Diffuse Reflectance mid-Infrared Fourier Transform (DRIFT) spectroscopy of cellulose-based materials, chemometrics analysis, and research of MIR instrumentation for prototype development. The DRIFT spectroscopy data represents a database of the chemistries and spectroscopic signatures of interest to the applications discussed here. Over 50,000 spectra were obtained from cellulose-based materials infised with a wide variety of non-cellulose chemistry. Chemometrics analysis was performed on the DRIFT database to determine the quantitative and qualitative limits of the technique. Emphasis was placed on qualitative evaluation of spectroscopic signatures unique to the particular classes of cellulose-based material; thus, the degree to which classes could be sorted was determined. Finally, investigations of MIR instrumentation suitable for transfer of the technique from the lab-based instrument to a field ready prototype were made.

  3. High throughput web inspection system using time-stretch real-time imaging

    NASA Astrophysics Data System (ADS)

    Kim, Chanju

    Photonic time-stretch is a novel technology that enables capturing of fast, rare and non-repetitive events. Therefore, it operates in real-time with ability to record over long period of time while having fine temporal resolution. The powerful property of photonic time-stretch has already been employed in various fields of application such as analog-to-digital conversion, spectroscopy, laser scanner and microscopy. Further expanding the scope, we fully exploit the time-stretch technology to demonstrate a high throughput web inspection system. Web inspection, namely surface inspection is a nondestructive evaluation method which is crucial for semiconductor wafer and thin film production. We successfully report a dark-field web inspection system with line scan speed of 90.9 MHz which is up to 1000 times faster than conventional inspection instruments. The manufacturing of high quality semiconductor wafer and thin film may directly benefit from this technology as it can easily locate defects with area of less than 10 microm x 10 microm where it allows maximum web flow speed of 1.8 km/s. The thesis provides an overview of our web inspection technique, followed by description of the photonic time-stretch technique which is the keystone in our system. A detailed explanation of each component is covered to provide quantitative understanding of the system. Finally, imaging results from a hard-disk sample and flexible films are presented along with performance analysis of the system. This project was the first application of time-stretch to industrial inspection, and was conducted under financial support and with close involvement by Hitachi, Ltd.

  4. Web-based monitoring and management system for integrated enterprise-wide imaging networks

    NASA Astrophysics Data System (ADS)

    Ma, Keith; Slik, David; Lam, Alvin; Ng, Won

    2003-05-01

    Mass proliferation of IP networks and the maturity of standards has enabled the creation of sophisticated image distribution networks that operate over Intranets, Extranets, Communities of Interest (CoI) and even the public Internet. Unified monitoring, provisioning and management of such systems at the application and protocol levels represent a challenge. This paper presents a web based monitoring and management tool that employs established telecom standards for the creation of an open system that enables proactive management, provisioning and monitoring of image management systems at the enterprise level and across multi-site geographically distributed deployments. Utilizing established standards including ITU-T M.3100, and web technologies such as XML/XSLT, JSP/JSTL, and J2SE, the system allows for seamless device and protocol adaptation between multiple disparate devices. The goal has been to develop a unified interface that provides network topology views, multi-level customizable alerts, real-time fault detection as well as real-time and historical reporting of all monitored resources, including network connectivity, system load, DICOM transactions and storage capacities.

  5. A novel Iterative algorithm to text segmentation for web born-digital images

    NASA Astrophysics Data System (ADS)

    Xu, Zhigang; Zhu, Yuesheng; Sun, Ziqiang; Liu, Zhen

    2015-07-01

    Since web born-digital images have low resolution and dense text atoms, text region over-merging and miss detection are still two open issues to be addressed. In this paper a novel iterative algorithm is proposed to locate and segment text regions. In each iteration, the candidate text regions are generated by detecting Maximally Stable Extremal Region (MSER) with diminishing thresholds, and categorized into different groups based on a new similarity graph, and the texted region groups are identified by applying several features and rules. With our proposed overlap checking method the final well-segmented text regions are selected from these groups in all iterations. Experiments have been carried out on the web born-digital image datasets used for robust reading competition in ICDAR 2011 and 2013, and the results demonstrate that our proposed scheme can significantly reduce both the number of over-merge regions and the lost rate of target atoms, and the overall performance outperforms the best compared with the methods shown in the two competitions in term of recall rate and f-score at the cost of slightly higher computational complexity.

  6. Inverse Problems and Imaging Web site: http://www.aimSciences.org Volume X, No. 0X, 200X, XXX

    E-print Network

    Zou, Jun

    such as underground mine detection, geophysical exploration in oil industry, detection of defects or cracks in nondestructive testing, target detection using radar or sonar sys- tems and ultrasound imaging in biomedicalInverse Problems and Imaging Web site: http://www.aimSciences.org Volume X, No. 0X, 200X, X

  7. [Development and evaluation of the medical imaging distribution system with dynamic web application and clustering technology].

    PubMed

    Yokohama, Noriya; Tsuchimoto, Tadashi; Oishi, Masamichi; Itou, Katsuya

    2007-01-20

    It has been noted that the downtime of medical informatics systems is often long. Many systems encounter downtimes of hours or even days, which can have a critical effect on daily operations. Such systems remain especially weak in the areas of database and medical imaging data. The scheme design shows the three-layer architecture of the system: application, database, and storage layers. The application layer uses the DICOM protocol (Digital Imaging and Communication in Medicine) and HTTP (Hyper Text Transport Protocol) with AJAX (Asynchronous JavaScript+XML). The database is designed to decentralize in parallel using cluster technology. Consequently, restoration of the database can be done not only with ease but also with improved retrieval speed. In the storage layer, a network RAID (Redundant Array of Independent Disks) system, it is possible to construct exabyte-scale parallel file systems that exploit storage spread. Development and evaluation of the test-bed has been successful in medical information data backup and recovery in a network environment. This paper presents a schematic design of the new medical informatics system that can be accommodated from a recovery and the dynamic Web application for medical imaging distribution using AJAX. PMID:17344636

  8. Interoperative fundus image and report sharing in compliance with integrating the healthcare enterprise conformance and web access to digital imaging and communication in medicine persistent object protocol

    PubMed Central

    Wu, Hui-Qun; Lv, Zheng-Min; Geng, Xing-Yun; Jiang, Kui; Tang, Le-Min; Zhou, Guo-Min; Dong, Jian-Cheng

    2013-01-01

    AIM To address issues in interoperability between different fundus image systems, we proposed a web eye-picture archiving and communication system (PACS) framework in conformance with digital imaging and communication in medicine (DICOM) and health level 7 (HL7) protocol to realize fundus images and reports sharing and communication through internet. METHODS Firstly, a telemedicine-based eye care work flow was established based on integrating the healthcare enterprise (IHE) Eye Care technical framework. Then, a browser/server architecture eye-PACS system was established in conformance with the web access to DICOM persistent object (WADO) protocol, which contains three tiers. RESULTS In any client system installed with web browser, clinicians could log in the eye-PACS to observe fundus images and reports. Multipurpose internet mail extensions (MIME) type of a structured report is saved as pdf/html with reference link to relevant fundus image using the WADO syntax could provide enough information for clinicians. Some functions provided by open-source Oviyam could be used to query, zoom, move, measure, view DICOM fundus images. CONCLUSION Such web eye-PACS in compliance to WADO protocol could be used to store and communicate fundus images and reports, therefore is of great significance for teleophthalmology. PMID:24392341

  9. An overview of the web-based Google Earth coincident imaging tool

    USGS Publications Warehouse

    Chander, Gyanesh; Kilough, B.; Gowda, S.

    2010-01-01

    The Committee on Earth Observing Satellites (CEOS) Visualization Environment (COVE) tool is a browser-based application that leverages Google Earth web to display satellite sensor coverage areas. The analysis tool can also be used to identify near simultaneous surface observation locations for two or more satellites. The National Aeronautics and Space Administration (NASA) CEOS System Engineering Office (SEO) worked with the CEOS Working Group on Calibration and Validation (WGCV) to develop the COVE tool. The CEOS member organizations are currently operating and planning hundreds of Earth Observation (EO) satellites. Standard cross-comparison exercises between multiple sensors to compare near-simultaneous surface observations and to identify corresponding image pairs are time-consuming and labor-intensive. COVE is a suite of tools that have been developed to make such tasks easier.

  10. Development of Integration Framework for Sensor Network and Satellite Image based on OGC Web Services

    NASA Astrophysics Data System (ADS)

    Ninsawat, Sarawut; Yamamoto, Hirokazu; Kamei, Akihide; Nakamura, Ryosuke; Tsuchida, Satoshi; Maeda, Takahisa

    2010-05-01

    With the availability of network enabled sensing devices, the volume of information being collected by networked sensors has increased dramatically in recent years. Over 100 physical, chemical and biological properties can be sensed using in-situ or remote sensing technology. A collection of these sensor nodes forms a sensor network, which is easily deployable to provide a high degree of visibility into real-world physical processes as events unfold. The sensor observation network could allow gathering of diverse types of data at greater spatial and temporal resolution, through the use of wired or wireless network infrastructure, thus real-time or near-real time data from sensor observation network allow researchers and decision-makers to respond speedily to events. However, in the case of environmental monitoring, only a capability to acquire in-situ data periodically is not sufficient but also the management and proper utilization of data also need to be careful consideration. It requires the implementation of database and IT solutions that are robust, scalable and able to interoperate between difference and distributed stakeholders to provide lucid, timely and accurate update to researchers, planners and citizens. The GEO (Global Earth Observation) Grid is primarily aiming at providing an e-Science infrastructure for the earth science community. The GEO Grid is designed to integrate various kinds of data related to the earth observation using the grid technology, which is developed for sharing data, storage, and computational powers of high performance computing, and is accessible as a set of services. A comprehensive web-based system for integrating field sensor and data satellite image based on various open standards of OGC (Open Geospatial Consortium) specifications has been developed. Web Processing Service (WPS), which is most likely the future direction of Web-GIS, performs the computation of spatial data from distributed data sources and returns the outcome in a standard format. The interoperability capabilities and Service Oriented Architecture (SOA) of web services allow incorporating between sensor network measurement available from Sensor Observation Service (SOS) and satellite remote sensing data from Web Mapping Service (WMS) as distributed data sources for WPS. Various applications have been developed to demonstrate the efficacy of integrating heterogeneous data source. For example, the validation of the MODIS aerosol products (MOD08_D3, the Level-3 MODIS Atmosphere Daily Global Product) by ground-based measurements using the sunphotometer (skyradiometer, Prede POM-02) installed at Phenological Eyes Network (PEN) sites in Japan. Furthermore, the web-based framework system for studying a relationship between calculated Vegetation Index from MODIS satellite image surface reflectance (MOD09GA, the Surface Reflectance Daily L2G Global 1km and 500m Product) and Gross Primary Production (GPP) field measurement at flux tower site in Thailand and Japan has been also developed. The success of both applications will contribute to maximize data utilization and improve accuracy of information by validate MODIS satellite products using high degree of accuracy and temporal measurement of field measurement data.

  11. Federated Web-accessible Clinical Data Management within an Extensible NeuroImaging Database

    PubMed Central

    Keator, David B.; Wei, Dingying; Fennema-Notestine, Christine; Pease, Karen R.; Bockholt, Jeremy; Grethe, Jeffrey S.

    2010-01-01

    Managing vast datasets collected throughout multiple clinical imaging communities has become critical with the ever increasing and diverse nature of datasets. Development of data management infrastructure is further complicated by technical and experimental advances that drive modifications to existing protocols and acquisition of new types of research data to be incorporated into existing data management systems. In this paper, an extensible data management system for clinical neuroimaging studies is introduced: The Human Clinical Imaging Database (HID) and Toolkit. The database schema is constructed to support the storage of new data types without changes to the underlying schema. The complex infrastructure allows management of experiment data, such as image protocol and behavioral task parameters, as well as subject-specific data, including demographics, clinical assessments, and behavioral task performance metrics. Of significant interest, embedded clinical data entry and management tools enhance both consistency of data reporting and automatic entry of data into the database. The Clinical Assessment Layout Manager (CALM) allows users to create on-line data entry forms for use within and across sites, through which data is pulled into the underlying database via the generic clinical assessment management engine (GAME). Importantly, the system is designed to operate in a distributed environment, serving both human users and client applications in a service-oriented manner. Querying capabilities use a built-in multi-database parallel query builder/result combiner, allowing web-accessible queries within and across multiple federated databases. The system along with its documentation is open-source and available from the Neuroimaging Informatics Tools and Resource Clearinghouse (NITRC) site. PMID:20567938

  12. BrainIACS: a system for web-based medical image processing

    NASA Astrophysics Data System (ADS)

    Kishore, Bhaskar; Bazin, Pierre-Louis; Pham, Dzung L.

    2009-02-01

    We describe BrainIACS, a web-based medical image processing system that permits and facilitates algorithm developers to quickly create extensible user interfaces for their algorithms. Designed to address the challenges faced by algorithm developers in providing user-friendly graphical interfaces, BrainIACS is completely implemented using freely available, open-source software. The system, which is based on a client-server architecture, utilizes an AJAX front-end written using the Google Web Toolkit (GWT) and Java Servlets running on Apache Tomcat as its back-end. To enable developers to quickly and simply create user interfaces for configuring their algorithms, the interfaces are described using XML and are parsed by our system to create the corresponding user interface elements. Most of the commonly found elements such as check boxes, drop down lists, input boxes, radio buttons, tab panels and group boxes are supported. Some elements such as the input box support input validation. Changes to the user interface such as addition and deletion of elements are performed by editing the XML file or by using the system's user interface creator. In addition to user interface generation, the system also provides its own interfaces for data transfer, previewing of input and output files, and algorithm queuing. As the system is programmed using Java (and finally Java-script after compilation of the front-end code), it is platform independent with the only requirements being that a Servlet implementation be available and that the processing algorithms can execute on the server platform.

  13. Contextualising and Analysing Planetary Rover Image Products through the Web-Based PRoGIS

    NASA Astrophysics Data System (ADS)

    Morley, Jeremy; Sprinks, James; Muller, Jan-Peter; Tao, Yu; Paar, Gerhard; Huber, Ben; Bauer, Arnold; Willner, Konrad; Traxler, Christoph; Garov, Andrey; Karachevtseva, Irina

    2014-05-01

    The international planetary science community has launched, landed and operated dozens of human and robotic missions to the planets and the Moon. They have collected various surface imagery that has only been partially utilized for further scientific purposes. The FP7 project PRoViDE (Planetary Robotics Vision Data Exploitation) is assembling a major portion of the imaging data gathered so far from planetary surface missions into a unique database, bringing them into a spatial context and providing access to a complete set of 3D vision products. Processing is complemented by a multi-resolution visualization engine that combines various levels of detail for a seamless and immersive real-time access to dynamically rendered 3D scenes. PRoViDE aims to (1) complete relevant 3D vision processing of planetary surface missions, such as Surveyor, Viking, Pathfinder, MER, MSL, Phoenix, Huygens, and Lunar ground-level imagery from Apollo, Russian Lunokhod and selected Luna missions, (2) provide highest resolution & accuracy remote sensing (orbital) vision data processing results for these sites to embed the robotic imagery and its products into spatial planetary context, (3) collect 3D Vision processing and remote sensing products within a single coherent spatial data base, (4) realise seamless fusion between orbital and ground vision data, (5) demonstrate the potential of planetary surface vision data by maximising image quality visualisation in 3D publishing platform, (6) collect and formulate use cases for novel scientific application scenarios exploiting the newly introduced spatial relationships and presentation, (7) demonstrate the concepts for MSL, (9) realize on-line dissemination of key data & its presentation by a web-based GIS and rendering tool named PRoGIS (Planetary Robotics GIS). PRoGIS is designed to give access to rover image archives in geographical context, using projected image view cones, obtained from existing meta-data and updated according to processing results, as a means to interact with and explore the archive. However PRoGIS is more than a source data explorer. It is linked to the PRoVIP (Planetary Robotics Vision Image Processing) system which includes photogrammetric processing tools to extract terrain models, compose panoramas, and explore and exploit multi-view stereo (where features on the surface have been imaged from different rover stops). We have started with the Opportunity MER rover as our test mission but the system is being designed to be multi-mission, taking advantage in particular of UCL MSSL's PDS mirror, and we intend to at least deal with both MER rovers and MSL. For the period of ProViDE until end of 2015 the further intent is to handle lunar and other Martian rover & descent camera data. The presentation discusses the challenges of integrating rover and orbital derived data into a single geographical framework, especially reconstructing view cones; our human-computer interaction intentions in creating an interface to the rover data that is accessible to planetary scientists; how we handle multi-mission data in the database; and a demonstration of the resulting system & its processing capabilities. The research leading to these results has received funding from the European Community's Seventh Framework Programme (FP7/2007-2013) under grant agreement n° 312377 PRoViDE.

  14. HTML5 PivotViewer: high-throughput visualization and querying of image data on the web

    PubMed Central

    Taylor, Stephen; Noble, Roger

    2014-01-01

    Motivation:?Visualization and analysis of large numbers of biological images has generated a bottle neck in research. We present HTML5 PivotViewer, a novel, open source, platform-independent viewer making use of the latest web technologies that allows seamless access to images and associated metadata for each image. This provides a powerful method to allow end users to mine their data. Availability and implementation:?Documentation, examples and links to the software are available from http://www.cbrg.ox.ac.uk/data/pivotviewer/. The software is licensed under GPLv2. Contact:? stephen.taylor@imm.ox.ac.uk and roger@coritsu.com PMID:24849578

  15. Maskiton: Interactive, Web-based Classification of Single-Particle Electron Microscopy Images

    PubMed Central

    Yoshioka, Craig; Lyumkis, Dmitry; Carragher, Bridget; Potter, Clinton S.

    2013-01-01

    Electron microscopy (EM) is an important tool for determining the composition, arrangement and structure of biological macromolecules. When studying structurally heterogeneous samples using EM, classification is a critical step toward achieving higher resolution and identifying biologically significant conformations. We have developed an interactive, web-based tool, called Maskiton, for creating custom masks and performing 2D classifications on aligned single-particle EM images. The Maskiton interface makes it considerably easier and faster to explore the significance of heterogeneity in single-particle datasets. Maskiton features include: resumable uploads to facilitate transfer of large datasets to the server, custom mask creation in the browser, continual progress updates, and interactive viewing of classification results. To demonstrate the value of this tool, we provide examples of its use on several experimental datasets and include analyses of the independent terminus mobility within the Ltn1 E3 ubiquitin ligase, the in-vitro assembly of 30S ribosomal subunits, and classification complexity reduction within Immunoglobulin M. This work also serves as a proof-of-concept for the development of future cross-platform, interactive user interfaces for electron microscopy data processing. PMID:23428431

  16. Inverse Problems and Imaging Web site: http://www.aimSciences.org Volume X, No. 0X, 200X, XXX

    E-print Network

    Piana, Michele

    Inverse Problems and Imaging Web site: http://www.aimSciences.org Volume X, No. 0X, 200X, X­XX PARTICLE FILTERING, BEAMFORMING AND MULTIPLE SIGNAL CLASSIFICATION FOR THE ANALYSIS, an algorithm implementing multiple signal classification with recursively applied projection and a particle

  17. A History of the NASA Planetary Data System (PDS) Imaging Node's Map-A-Planet Legacy Web Services

    NASA Astrophysics Data System (ADS)

    Garcia, P. A.; Isbell, C. E.; Gaddis, L. R.

    2015-06-01

    NASA Planetary Data System (PDS) Imaging Node’s Map-A-Planet Legacy Web Services have served the planetary data community for more than fifteen years. Here we look back at the evolution and development of the services over the that time.

  18. High Throughput Web Inspection System using Time-stretch Real-time Imaging

    E-print Network

    Kim, Chanju

    2013-01-01

    successfully report a dark-field web inspection system withsample substrate for our dark-field web inspection systemweb inspection system exploiting time- stretch and utilizing the merits coming from dark-

  19. Web-based, GPU-accelerated, Monte Carlo simulation and visualization of indirect radiation imaging detector performance

    SciTech Connect

    Dong, Han; Sharma, Diksha; Badano, Aldo

    2014-12-15

    Purpose: Monte Carlo simulations play a vital role in the understanding of the fundamental limitations, design, and optimization of existing and emerging medical imaging systems. Efforts in this area have resulted in the development of a wide variety of open-source software packages. One such package, hybridMANTIS, uses a novel hybrid concept to model indirect scintillator detectors by balancing the computational load using dual CPU and graphics processing unit (GPU) processors, obtaining computational efficiency with reasonable accuracy. In this work, the authors describe two open-source visualization interfaces, webMANTIS and visualMANTIS to facilitate the setup of computational experiments via hybridMANTIS. Methods: The visualization tools visualMANTIS and webMANTIS enable the user to control simulation properties through a user interface. In the case of webMANTIS, control via a web browser allows access through mobile devices such as smartphones or tablets. webMANTIS acts as a server back-end and communicates with an NVIDIA GPU computing cluster that can support multiuser environments where users can execute different experiments in parallel. Results: The output consists of point response and pulse-height spectrum, and optical transport statistics generated by hybridMANTIS. The users can download the output images and statistics through a zip file for future reference. In addition, webMANTIS provides a visualization window that displays a few selected optical photon path as they get transported through the detector columns and allows the user to trace the history of the optical photons. Conclusions: The visualization tools visualMANTIS and webMANTIS provide features such as on the fly generation of pulse-height spectra and response functions for microcolumnar x-ray imagers while allowing users to save simulation parameters and results from prior experiments. The graphical interfaces simplify the simulation setup and allow the user to go directly from specifying input parameters to receiving visual feedback for the model predictions.

  20. Time-Sensitive Web Image Ranking and Retrieval via Dynamic Multi-Task Regression

    E-print Network

    Xing, Eric P.

    Machine Learning Department Carnegie Mellon University Pittsburgh, 15213 PA epxing@cs.cmu.edu ABSTRACT that automatically selects and learns stochastic parametric mod- els to solve the relations between image occurrence. In this paper, we study one additional aspect to improve image search quality: temporal dynamics of image collec

  1. Cultural Interpretations of the Visual Meaning of Icons and Images Used in North American Web Design

    ERIC Educational Resources Information Center

    Knight, Eliot; Gunawardena, Charlotte N.; Aydin, Cengiz Hakan

    2009-01-01

    This study examines cross-cultural interpretations of icons and images drawn from US academic websites. Participants from Morocco, Sri Lanka, Turkey, and the USA responded to an online questionnaire containing 18 icons and images representing online functions and information types common on US academic websites. Participants supplied meanings for…

  2. Understanding Web Images by Object Relation Network Dept. of Computer Science

    E-print Network

    Hwang, Kai

    Players SoccerPlayer1 Figure 1: Images and their Object Relation Networks automatically generated by our system ABSTRACT This paper presents an automatic method for understand- ing and interpreting the semantics. Guided and constrained by an ontology, ORN transfers the rich semantics in the ontology to image objects

  3. Dcm-ar: a fast flash-based Web-PACS viewer for displaying large DICOM images.

    PubMed

    Arguinarena, Emanuel J C; Macchi, Jose E; Escobar, Pedro P; Del Fresno, Mariana; Massa, Jose M; Santiago, Martin A

    2010-01-01

    Using Web-PACS has become an attractive option that brings access to medical imaging databases from remote hosts. However, the big size of the medical images to be transmitted impacts negatively on the teleradiologist experience by increasing the dead times elapsed between study request and visualization on the screen. In this context, it is of the upmost interest to implement strategies to optimize image transmission. In this work a system (Dcm-Ar) for remote visualization of DICOM files is presented, which strongly reduces the time-to-display (TTD), thus improving the teleradiologist comfort. Dcm-Ar is made up of a Server interacting with a PACS and a remote Client. The Client is a DICOM viewer, which is based on the Adobe Flash virtual machine. This fact ensures easy and costless dissemination of the technology. PMID:21097025

  4. GelScape: a web-based server for interactively annotating, manipulating, comparing and archiving 1D and 2D gel images.

    PubMed

    Young, Nelson; Chang, Zhan; Wishart, David S

    2004-04-12

    GelScape is a web-based tool that permits facile, interactive annotation, comparison, manipulation and storage of protein gel images. It uses Java applet-servlet technology to allow rapid, remote image handling and image processing in a platform-independent manner. It supports many of the features found in commercial, stand-alone gel analysis software including spot annotation, spot integration, gel warping, image resizing, HTML image mapping, image overlaying as well as the storage of gel image and gel annotation data in compliance with Federated Gel Database requirements. PMID:14764570

  5. SU-D-BRD-02: A Web-Based Image Processing and Plan Evaluation Platform (WIPPEP) for Future Cloud-Based Radiotherapy

    SciTech Connect

    Chai, X; Liu, L; Xing, L

    2014-06-01

    Purpose: Visualization and processing of medical images and radiation treatment plan evaluation have traditionally been constrained to local workstations with limited computation power and ability of data sharing and software update. We present a web-based image processing and planning evaluation platform (WIPPEP) for radiotherapy applications with high efficiency, ubiquitous web access, and real-time data sharing. Methods: This software platform consists of three parts: web server, image server and computation server. Each independent server communicates with each other through HTTP requests. The web server is the key component that provides visualizations and user interface through front-end web browsers and relay information to the backend to process user requests. The image server serves as a PACS system. The computation server performs the actual image processing and dose calculation. The web server backend is developed using Java Servlets and the frontend is developed using HTML5, Javascript, and jQuery. The image server is based on open source DCME4CHEE PACS system. The computation server can be written in any programming language as long as it can send/receive HTTP requests. Our computation server was implemented in Delphi, Python and PHP, which can process data directly or via a C++ program DLL. Results: This software platform is running on a 32-core CPU server virtually hosting the web server, image server, and computation servers separately. Users can visit our internal website with Chrome browser, select a specific patient, visualize image and RT structures belonging to this patient and perform image segmentation running Delphi computation server and Monte Carlo dose calculation on Python or PHP computation server. Conclusion: We have developed a webbased image processing and plan evaluation platform prototype for radiotherapy. This system has clearly demonstrated the feasibility of performing image processing and plan evaluation platform through a web browser and exhibited potential for future cloud based radiotherapy.

  6. Using Novel Image-based Interactional Proofs and Source Randomization for Prevention of Web Bots 

    E-print Network

    Shardul Vikram

    2012-02-14

    Fiddler to automatically send spam through Facebook Message Box. : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 33 7.2 A case study of email filed spamming. : : : : : : : : : : : : : : : : : : : : : 37 8.1 The system architecture...) to achieve the final effect. Each HTML element in a web page is has a unique name and/or id and most of the server-side logic is based on it. However, this fact is utilized by the hackers to create bots which automate the web experience for financial...

  7. The Hico Image Processing System: A Web-Accessible Hyperspectral Remote Sensing Toolbox

    NASA Astrophysics Data System (ADS)

    Harris, A. T., III; Goodman, J.; Justice, B.

    2014-12-01

    As the quantity of Earth-observation data increases, the use-case for hosting analytical tools in geospatial data centers becomes increasingly attractive. To address this need, HySpeed Computing and Exelis VIS have developed the HICO Image Processing System, a prototype cloud computing system that provides online, on-demand, scalable remote sensing image processing capabilities. The system provides a mechanism for delivering sophisticated image processing analytics and data visualization tools into the hands of a global user community, who will only need a browser and internet connection to perform analysis. Functionality of the HICO Image Processing System is demonstrated using imagery from the Hyperspectral Imager for the Coastal Ocean (HICO), an imaging spectrometer located on the International Space Station (ISS) that is optimized for acquisition of aquatic targets. Example applications include a collection of coastal remote sensing algorithms that are directed at deriving critical information on water and habitat characteristics of our vulnerable coastal environment. The project leverages the ENVI Services Engine as the framework for all image processing tasks, and can readily accommodate the rapid integration of new algorithms, datasets and processing tools.

  8. Medical high-resolution image sharing and electronic whiteboard system: A pure-web-based system for accessing and discussing lossless original images in telemedicine.

    PubMed

    Qiao, Liang; Li, Ying; Chen, Xin; Yang, Sheng; Gao, Peng; Liu, Hongjun; Feng, Zhengquan; Nian, Yongjian; Qiu, Mingguo

    2015-09-01

    There are various medical image sharing and electronic whiteboard systems available for diagnosis and discussion purposes. However, most of these systems ask clients to install special software tools or web plug-ins to support whiteboard discussion, special medical image format, and customized decoding algorithm of data transmission of HRIs (high-resolution images). This limits the accessibility of the software running on different devices and operating systems. In this paper, we propose a solution based on pure web pages for medical HRIs lossless sharing and e-whiteboard discussion, and have set up a medical HRI sharing and e-whiteboard system, which has four-layered design: (1) HRIs access layer: we improved an tile-pyramid model named unbalanced ratio pyramid structure (URPS), to rapidly share lossless HRIs and to adapt to the reading habits of users; (2) format conversion layer: we designed a format conversion engine (FCE) on server side to real time convert and cache DICOM tiles which clients requesting with window-level parameters, to make browsers compatible and keep response efficiency to server-client; (3) business logic layer: we built a XML behavior relationship storage structure to store and share users' behavior, to keep real time co-browsing and discussion between clients; (4) web-user-interface layer: AJAX technology and Raphael toolkit were used to combine HTML and JavaScript to build client RIA (rich Internet application), to meet clients' desktop-like interaction on any pure webpage. This system can be used to quickly browse lossless HRIs, and support discussing and co-browsing smoothly on any web browser in a diversified network environment. The proposal methods can provide a way to share HRIs safely, and may be used in the field of regional health, telemedicine and remote education at a low cost. PMID:26093385

  9. Sally Ride EarthKAM - Automated Image Geo-Referencing Using Google Earth Web Plug-In

    NASA Technical Reports Server (NTRS)

    Andres, Paul M.; Lazar, Dennis K.; Thames, Robert Q.

    2013-01-01

    Sally Ride EarthKAM is an educational program funded by NASA that aims to provide the public the ability to picture Earth from the perspective of the International Space Station (ISS). A computer-controlled camera is mounted on the ISS in a nadir-pointing window; however, timing limitations in the system cause inaccurate positional metadata. Manually correcting images within an orbit allows the positional metadata to be improved using mathematical regressions. The manual correction process is time-consuming and thus, unfeasible for a large number of images. The standard Google Earth program allows for the importing of KML (keyhole markup language) files that previously were created. These KML file-based overlays could then be manually manipulated as image overlays, saved, and then uploaded to the project server where they are parsed and the metadata in the database is updated. The new interface eliminates the need to save, download, open, re-save, and upload the KML files. Everything is processed on the Web, and all manipulations go directly into the database. Administrators also have the control to discard any single correction that was made and validate a correction. This program streamlines a process that previously required several critical steps and was probably too complex for the average user to complete successfully. The new process is theoretically simple enough for members of the public to make use of and contribute to the success of the Sally Ride EarthKAM project. Using the Google Earth Web plug-in, EarthKAM images, and associated metadata, this software allows users to interactively manipulate an EarthKAM image overlay, and update and improve the associated metadata. The Web interface uses the Google Earth JavaScript API along with PHP-PostgreSQL to present the user the same interface capabilities without leaving the Web. The simpler graphical user interface will allow the public to participate directly and meaningfully with EarthKAM. The use of similar techniques is being investigated to place ground-based observations in a Google Mars environment, allowing the MSL (Mars Science Laboratory) Science Team a means to visualize the rover and its environment.

  10. The Use of Social Tags in Text and Image Searching on the Web

    ERIC Educational Resources Information Center

    Kim, Yong-Mi

    2011-01-01

    In recent years, tags have become a standard feature on a diverse range of sites on the Web, accompanying blog posts, photos, videos, and online news stories. Tags are descriptive terms attached to Internet resources. Despite the rapid adoption of tagging, how people use tags during the search process is not well understood. There is little…

  11. A Web-Based Search Service to Support Imaging Spectrometer Instrument Operations

    NASA Technical Reports Server (NTRS)

    Smith, Alexander; Thompson, David R.; Sayfi, Elias; Xing, Zhangfan; Castano, Rebecca

    2013-01-01

    Imaging spectrometers yield rich and informative data products, but interpreting them demands time and expertise. There is a continual need for new algorithms and methods for rapid first-draft analyses to assist analysts during instrument opera-tions. Intelligent data analyses can summarize scenes to draft geologic maps, searching images to direct op-erator attention to key features. This validates data quality while facilitating rapid tactical decision making to select followup targets. Ideally these algorithms would operate in seconds, never grow bored, and be free from observation bias about the kinds of mineral-ogy that will be found.

  12. Demonstration of the Capabilities of CometCIEF: A Web-based Image Enhancement Facility to Enhance Images of Cometary Comae

    NASA Astrophysics Data System (ADS)

    Martin, Michael Patrick; Samarasinha, Nalin; Larson, Steve

    2014-11-01

    Accurate identifications and measurements of spatial information related to coma structures of comets are an essential component of realistic quantitative interpretation of coma observations. For this purpose, there is a number of image enhancement techniques used by cometary scientists. Despite this, the wider applicability of many advanced enhancement techniques is limited due to the non-availability of relevant software as open source. We are making available a number of such techniques using a user-friendly web interface.In this image enhancement facility available at http://www.psi.edu/research/cometimen one can upload a FITS format image of a cometary coma and digitally enhance it using an image enhancement technique of the user’s choice. The user can then download the enhanced image as well as any associated images generated during the enhancement as FITS files for detailed analysis later at the user’s institution. The available image enhancement techniques at the facility are:(a) division by azimuthal average,(b) division by azimuthal median,(c) azimuthal renormalization,(d) division by 1/? profile, where ? is the skyplane projected distance from the nucleus, and(e) radially variable spatial filtering.The site provides documentation describing the above enhancement techniques as well as a tutorial showing the application of the enhancement techniques to actual cometary images and how the results may vary with different input parameters. In addition, the source codes as well as the executables are available for the user to download. To provide a secure facility, all the images uploaded by the users as well as the images created at the facility are deleted using a script that runs every hour.At the Division for Planetary Sciences 2014 meeting, we will present a description of CometCIEF and its capabilities, as well as a live demonstration of the facility that includes a question-answer session.Acknowledgements: We thank the NASA Planetary Atmospheres Program and the NASA Space Grant Program for supporting this work.

  13. Exploiting weakly-labeled Web images to improve object classification: a domain adaptation approach

    E-print Network

    Torresani, Lorenzo

    for the purpose of training and evaluating visual recognition systems. Label information in these collections-consuming human labeling effort effectively limits these approaches to recognition problems involving a small- trieved by keyword-based image search engines. While this strategy eliminates the need for human

  14. "Adam Smith Meets Walt Disney": School Image on the World Wide Web

    ERIC Educational Resources Information Center

    Smith, Alison

    2007-01-01

    This article describes a small-scale research project undertaken as part of the coursework in a Doctor of Education programme. The project investigated the organisational images or identities portrayed by ten secondary schools in Auckland, New Zealand on their school websites. The recent proliferation of school websites has provided schools with a…

  15. Developing a Web Tool for Searching and Viewing Collections of High-Quality Cultural Images

    ERIC Educational Resources Information Center

    Lazarinis, Fotis

    2010-01-01

    Purpose: Searching for information and viewing visual representations of products in e-organisations is a common activity of the e-visitors to these organisations. For example, in e-museums, users are shown images or other visual information of the existing objects. The aim of this paper is to present a tool which supports the effective searching…

  16. Visual Analysis on Relations between Nouns and Adjectives Using a Large Number of Web Images

    E-print Network

    Yanai, Keiji

    -search with multiple keywords. For example, we obtain a photo showing blue sky and a red car for the query with "blue such as "car" and "sea" and and adjectives re- lated to color such as "red" and "blue" was relatively high AND car". To remove such a photo and to obtain only the pho- tos including blue cars, simultaneous image

  17. Web-based tool for subjective observer ranking of compressed medical images

    NASA Astrophysics Data System (ADS)

    Langer, Steven G.; Stewart, Brent K.; Andrew, Rex K.

    1999-05-01

    In the course of evaluating various compression schemes for ultrasound teleradiology applications, it became obvious that paper based methods of data collection were time consuming and error prone. A method was sought which allowed participating radiologists to view the ultrasound video clips (compressed to varying degree) at their desks. Furthermore, the method should allow observers to enter their evaluations and when finished, automatically submit the data to our statistical analysis engine. We have found the World Wide Web offered a ready solution. A web page was constructed that contains 18 embedded AVI video clips. The 18 clips represent 6 distinct anatomical areas, compressed by various methods and amounts, and then randomly distributed through the web page. To the right of each video, a series of questions are presented which ask the observer to rank (1 - 5) his/her ability to answer diagnostically relevant questions. When completed, the observer presses 'Submit' and a file of tab delimited test is created which can then be imported to an Excel workbook. Kappa analysis is then performed and the resulting plots demonstrate observer preferences.

  18. Web-based spatial analysis with the ILWIS open source GIS software and satellite images from GEONETCast

    NASA Astrophysics Data System (ADS)

    Lemmens, R.; Maathuis, B.; Mannaerts, C.; Foerster, T.; Schaeffer, B.; Wytzisk, A.

    2009-12-01

    This paper involves easy accessible integrated web-based analysis of satellite images with a plug-in based open source software. The paper is targeted to both users and developers of geospatial software. Guided by a use case scenario, we describe the ILWIS software and its toolbox to access satellite images through the GEONETCast broadcasting system. The last two decades have shown a major shift from stand-alone software systems to networked ones, often client/server applications using distributed geo-(web-)services. This allows organisations to combine without much effort their own data with remotely available data and processing functionality. Key to this integrated spatial data analysis is a low-cost access to data from within a user-friendly and flexible software. Web-based open source software solutions are more often a powerful option for developing countries. The Integrated Land and Water Information System (ILWIS) is a PC-based GIS & Remote Sensing software, comprising a complete package of image processing, spatial analysis and digital mapping and was developed as commercial software from the early nineties onwards. Recent project efforts have migrated ILWIS into a modular, plug-in-based open source software, and provide web-service support for OGC-based web mapping and processing. The core objective of the ILWIS Open source project is to provide a maintainable framework for researchers and software developers to implement training components, scientific toolboxes and (web-) services. The latest plug-ins have been developed for multi-criteria decision making, water resources analysis and spatial statistics analysis. The development of this framework is done since 2007 in the context of 52°North, which is an open initiative that advances the development of cutting edge open source geospatial software, using the GPL license. GEONETCast, as part of the emerging Global Earth Observation System of Systems (GEOSS), puts essential environmental data at the fingertips of users around the globe. This user-friendly and low-cost information dissemination provides global information as a basis for decision-making in a number of critical areas, including public health, energy, agriculture, weather, water, climate, natural disasters and ecosystems. GEONETCast makes available satellite images via Digital Video Broadcast (DVB) technology. An OGC WMS interface and plug-ins which convert GEONETCast data streams allow an ILWIS user to integrate various distributed data sources with data locally stored on his machine. Our paper describes a use case in which ILWIS is used with GEONETCast satellite imagery for decision making processes in Ghana. We also explain how the ILWIS software can be extended with additional functionality by means of building plug-ins and unfold our plans to implement other OGC standards, such as WCS and WPS in the same context. Especially, the latter one can be seen as a major step forward in terms of moving well-proven desktop based processing functionality to the web. This enables the embedding of ILWIS functionality in Spatial Data Infrastructures or even the execution in scalable and on-demand cloud computing environments.

  19. Characterizing Methane Emissions at Local Scales with a 20 Year Total Hydrocarbon Time Series, Imaging Spectrometry, and Web Facilitated Analysis

    NASA Astrophysics Data System (ADS)

    Bradley, Eliza Swan

    Methane is an important greenhouse gas for which uncertainty in local emission strengths necessitates improved source characterizations. Although CH4 plume mapping did not motivate the NASA Airborne Visible InfraRed Imaging Spectrometer (AVIRIS) design and municipal air quality monitoring stations were not intended for studying marine geological seepage, these assets have capabilities that can make them viable for studying concentrated (high flux, highly heterogeneous) CH4 sources, such as the Coal Oil Point (COP) seep field (˜0.015 Tg CH4 yr-1) offshore Santa Barbara, California. Hourly total hydrocarbon (THC) data, spanning 1990 to 2008 from an air pollution station located near COP, were analyzed and showed geologic CH4 emissions as the dominant local source. A band ratio approach was developed and applied to high glint AVIRIS data over COP, resulting in local-scale mapping of natural atmospheric CH4 plumes. A Cluster-Tuned Matched Filter (CTMF) technique was applied to Gulf of Mexico AVIRIS data to detect CH4 venting from offshore platforms. Review of 744 platform-centered CTMF subsets was facilitated through a flexible PHP-based web portal. This dissertation demonstrates the value of investigating municipal air quality data and imaging spectrometry for gathering insight into concentrated methane source emissions and highlights how flexible web-based solutions can help facilitate remote sensing research.

  20. Computer-aided diagnosis workstation and teleradiology network system for chest diagnosis using the web medical image conference system with a new information security solution

    NASA Astrophysics Data System (ADS)

    Satoh, Hitoshi; Niki, Noboru; Eguchi, Kenji; Ohmatsu, Hironobu; Kaneko, Masahiro; Kakinuma, Ryutaro; Moriyama, Noriyuki

    2010-03-01

    Diagnostic MDCT imaging requires a considerable number of images to be read. Moreover, the doctor who diagnoses a medical image is insufficient in Japan. Because of such a background, we have provided diagnostic assistance methods to medical screening specialists by developing a lung cancer screening algorithm that automatically detects suspected lung cancers in helical CT images, a coronary artery calcification screening algorithm that automatically detects suspected coronary artery calcification and a vertebra body analysis algorithm for quantitative evaluation of osteoporosis. We also have developed the teleradiology network system by using web medical image conference system. In the teleradiology network system, the security of information network is very important subjects. Our teleradiology network system can perform Web medical image conference in the medical institutions of a remote place using the web medical image conference system. We completed the basic proof experiment of the web medical image conference system with information security solution. We can share the screen of web medical image conference system from two or more web conference terminals at the same time. An opinion can be exchanged mutually by using a camera and a microphone that are connected with the workstation that builds in some diagnostic assistance methods. Biometric face authentication used on site of teleradiology makes "Encryption of file" and "Success in login" effective. Our Privacy and information security technology of information security solution ensures compliance with Japanese regulations. As a result, patients' private information is protected. Based on these diagnostic assistance methods, we have developed a new computer-aided workstation and a new teleradiology network that can display suspected lesions three-dimensionally in a short time. The results of this study indicate that our radiological information system without film by using computer-aided diagnosis workstation and our teleradiology network system can increase diagnostic speed, diagnostic accuracy and security improvement of medical information.

  1. Prospector: A web-based tool for rapid acquisition of gold standard data for pathology research and image analysis

    PubMed Central

    Wright, Alexander I.; Magee, Derek R.; Quirke, Philip; Treanor, Darren E.

    2015-01-01

    Background: Obtaining ground truth for pathological images is essential for various experiments, especially for training and testing image analysis algorithms. However, obtaining pathologist input is often difficult, time consuming and expensive. This leads to algorithms being over-fitted to small datasets, and inappropriate validation, which causes poor performance on real world data. There is a great need to gather data from pathologists in a simple and efficient manner, in order to maximise the amount of data obtained. Methods: We present a lightweight, web-based HTML5 system for administering and participating in data collection experiments. The system is designed for rapid input with minimal effort, and can be accessed from anywhere in the world with a reliable internet connection. Results: We present two case studies that use the system to assess how limitations on fields of view affect pathologist agreement, and to what extent poorly stained slides affect judgement. In both cases, the system collects pathologist scores at a rate of less than two seconds per image. Conclusions: The system has multiple potential applications in pathology and other domains. PMID:26110089

  2. Simplifying electronic data capture in clinical trials: workflow embedded image and biosignal file integration and analysis via web services.

    PubMed

    Haak, Daniel; Samsel, Christian; Gehlen, Johan; Jonas, Stephan; Deserno, Thomas M

    2014-10-01

    To improve data quality and save cost, clinical trials are nowadays performed using electronic data capture systems (EDCS) providing electronic case report forms (eCRF) instead of paper-based CRFs. However, such EDCS are insufficiently integrated into the medical workflow and lack in interfacing with other study-related systems. In addition, most EDCS are unable to handle image and biosignal data, although electrocardiography (EGC, as example for one-dimensional (1D) data), ultrasound (2D data), or magnetic resonance imaging (3D data) have been established as surrogate endpoints in clinical trials. In this paper, an integrated workflow based on OpenClinica, one of the world's largest EDCS, is presented. Our approach consists of three components for (i) sharing of study metadata, (ii) integration of large volume data into eCRFs, and (iii) automatic image and biosignal analysis. In all components, metadata is transferred between systems using web services and JavaScript, and binary large objects (BLOBs) are sent via the secure file transfer protocol and hypertext transfer protocol. We applied the close-looped workflow in a multicenter study, where long term (7 days/24 h) Holter ECG monitoring is acquired on subjects with diabetes. Study metadata is automatically transferred into OpenClinica, the 4 GB BLOBs are seamlessly integrated into the eCRF, automatically processed, and the results of signal analysis are written back into the eCRF immediately. PMID:24802371

  3. Use of a web-based image reporting and tracking system for assessing abdominal imaging examination quality issues in a single practice.

    PubMed

    Rosenkrantz, Andrew B; Johnson, Evan; Sanger, Joseph J

    2015-10-01

    This article presents our local experience in the implementation of a real-time web-based system for reporting and tracking quality issues relating to abdominal imaging examinations. This system allows radiologists to electronically submit examination quality issues during clinical readouts. The submitted information is e-mailed to a designate for the given modality for further follow-up; the designate may subsequently enter text describing their response or action taken, which is e-mailed back to the radiologist. Review of 558 entries over a 6-year period demonstrated documentation of a broad range of examination quality issues, including specific issues relating to protocol deviation, post-processing errors, positioning errors, artifacts, and IT concerns. The most common issues varied among US, CT, MRI, radiography, and fluoroscopy. In addition, the most common issues resulting in a patient recall for repeat imaging (generally related to protocol deviation in MRI and US) were identified. In addition to submitting quality problems, radiologists also commonly used the tool to provide recognition of a well-performed examination. An electronic log of actions taken in response to radiologists' submissions indicated that both positive and negative feedback were commonly communicated to the performing technologist. Information generated using the tool can be used to guide subsequent quality improvement initiatives within a practice, including continued protocol standardization as well as education of technologists in the optimization of abdominal imaging examinations. PMID:26182885

  4. On the Distribution of Salient Objects in Web Images and Its Influence on Salient Object Detection.

    PubMed

    Schauerte, Boris; Stiefelhagen, Rainer

    2015-01-01

    In recent years it has become apparent that a Gaussian center bias can serve as an important prior for visual saliency detection, which has been demonstrated for predicting human eye fixations and salient object detection. Tseng et al. have shown that the photographer's tendency to place interesting objects in the center is a likely cause for the center bias of eye fixations. We investigate the influence of the photographer's center bias on salient object detection, extending our previous work. We show that the centroid locations of salient objects in photographs of Achanta and Liu's data set in fact correlate strongly with a Gaussian model. This is an important insight, because it provides an empirical motivation and justification for the integration of such a center bias in salient object detection algorithms and helps to understand why Gaussian models are so effective. To assess the influence of the center bias on salient object detection, we integrate an explicit Gaussian center bias model into two state-of-the-art salient object detection algorithms. This way, first, we quantify the influence of the Gaussian center bias on pixel- and segment-based salient object detection. Second, we improve the performance in terms of F1 score, F? score, area under the recall-precision curve, area under the receiver operating characteristic curve, and hit-rate on the well-known data set by Achanta and Liu. Third, by debiasing Cheng et al.'s region contrast model, we exemplarily demonstrate that implicit center biases are partially responsible for the outstanding performance of state-of-the-art algorithms. Last but not least, we introduce a non-biased salient object detection method, which is of interest for applications in which the image data is not likely to have a photographer's center bias (e.g., image data of surveillance cameras or autonomous robots). PMID:26201078

  5. On the Distribution of Salient Objects in Web Images and Its Influence on Salient Object Detection

    PubMed Central

    Schauerte, Boris; Stiefelhagen, Rainer

    2015-01-01

    In recent years it has become apparent that a Gaussian center bias can serve as an important prior for visual saliency detection, which has been demonstrated for predicting human eye fixations and salient object detection. Tseng et al. have shown that the photographer’s tendency to place interesting objects in the center is a likely cause for the center bias of eye fixations. We investigate the influence of the photographer’s center bias on salient object detection, extending our previous work. We show that the centroid locations of salient objects in photographs of Achanta and Liu’s data set in fact correlate strongly with a Gaussian model. This is an important insight, because it provides an empirical motivation and justification for the integration of such a center bias in salient object detection algorithms and helps to understand why Gaussian models are so effective. To assess the influence of the center bias on salient object detection, we integrate an explicit Gaussian center bias model into two state-of-the-art salient object detection algorithms. This way, first, we quantify the influence of the Gaussian center bias on pixel- and segment-based salient object detection. Second, we improve the performance in terms of F1 score, F? score, area under the recall-precision curve, area under the receiver operating characteristic curve, and hit-rate on the well-known data set by Achanta and Liu. Third, by debiasing Cheng et al.’s region contrast model, we exemplarily demonstrate that implicit center biases are partially responsible for the outstanding performance of state-of-the-art algorithms. Last but not least, we introduce a non-biased salient object detection method, which is of interest for applications in which the image data is not likely to have a photographer’s center bias (e.g., image data of surveillance cameras or autonomous robots). PMID:26201078

  6. Development of a user-friendly system for image processing of electron microscopy by integrating a web browser and PIONE with Eos.

    PubMed

    Tsukamoto, Takafumi; Yasunaga, Takuo

    2014-11-01

    Eos (Extensible object-oriented system) is one of the powerful applications for image processing of electron micrographs. In usual cases, Eos works with only character user interfaces (CUI) under the operating systems (OS) such as OS-X or Linux, not user-friendly. Thus, users of Eos need to be expert at image processing of electron micrographs, and have a little knowledge of computer science, as well. However, all the persons who require Eos does not an expert for CUI. Thus we extended Eos to a web system independent of OS with graphical user interfaces (GUI) by integrating web browser.Advantage to use web browser is not only to extend Eos with GUI, but also extend Eos to work under distributed computational environment. Using Ajax (Asynchronous JavaScript and XML) technology, we implemented more comfortable user-interface on web browser. Eos has more than 400 commands related to image processing for electron microscopy, and the usage of each command is different from each other. Since the beginning of development, Eos has managed their user-interface by using the interface definition file of "OptionControlFile" written in CSV (Comma-Separated Value) format, i.e., Each command has "OptionControlFile", which notes information for interface and its usage generation. Developed GUI system called "Zephyr" (Zone for Easy Processing of HYpermedia Resources) also accessed "OptionControlFIle" and produced a web user-interface automatically, because its mechanism is mature and convenient,The basic actions of client side system was implemented properly and can supply auto-generation of web-form, which has functions of execution, image preview, file-uploading to a web server. Thus the system can execute Eos commands with unique options for each commands, and process image analysis. There remain problems of image file format for visualization and workspace for analysis: The image file format information is useful to check whether the input/output file is correct and we also need to provide common workspace for analysis because the client is physically separated from a server. We solved the file format problem by extension of rules of OptionControlFile of Eos. Furthermore, to solve workspace problems, we have developed two type of system. The first system is to use only local environments. The user runs a web server provided by Eos, access to a web client through a web browser, and manipulate the local files with GUI on the web browser. The second system is employing PIONE (Process-rule for Input/Output Negotiation Environment), which is our developing platform that works under heterogenic distributed environment. The users can put their resources, such as microscopic images, text files and so on, into the server-side environment supported by PIONE, and so experts can write PIONE rule definition, which defines a workflow of image processing. PIONE run each image processing on suitable computers, following the defined rule. PIONE has the ability of interactive manipulation, and user is able to try a command with various setting values. In this situation, we contribute to auto-generation of GUI for a PIONE workflow.As advanced functions, we have developed a module to log user actions. The logs include information such as setting values in image processing, procedure of commands and so on. If we use the logs effectively, we can get a lot of advantages. For example, when an expert may discover some know-how of image processing, other users can also share logs including his know-hows and so we may obtain recommendation workflow of image analysis, if we analyze logs. To implement social platform of image processing for electron microscopists, we have developed system infrastructure, as well. PMID:25359837

  7. Developpement web Developpement web

    E-print Network

    Matthieu, Basseur

    D´eveloppement web D´eveloppement web Caroline DEVRED, librement adapt´e par Matthieu BASSEUR Universit´e d'Angers 1/230 D´eveloppement web Plan XHTML et CSS Introduction Introduction `a XHTML Javascript Introduction La base Les formulaires Quelques ´ev`enements javascript 2/230 D´eveloppement web

  8. Distributed video generation on a GPU-cluster for the web-based analysis of medical image data

    NASA Astrophysics Data System (ADS)

    Rößler, Friedemann A.; Wolff, Torsten; Iserhardt-Bauer, Sabine; Tomandl, Bernd; Hastreiter, Peter; Ertl, Thomas

    2007-03-01

    Modern 3D visualization environments for medical image data provide high interactivity and flexibility but depend on the expert knowledge and the experience of the user with respect to the software application. The definition of the visualization parameters is a manual time-consuming process and as a result, inter-patient or inter-study comparisons are extremely difficult. To overcome these drawbacks in case of the analysis and diagnosis of pathologies, standardization of 3D visualization is an important issue. For this purpose automatically generated digital video sequences can be used to convey the most important information contained in the data. In this paper, we present an improvement of our existing web-based service which is now able to calculate the video sequences in much shorter time exploiting the power of a GPU-cluster. The system requires to transfer a medical volume dataset from an arbitrary computer connected via Internet and sends back a number of video files automatically generated with direct volume rendering. To achieve an optimal load balancing of the available resources, the tasks of automatic adjustment of transfer functions, volume rendering, and video encoding are divided into small sub-requests, which are distributed to the different cluster nodes in order to be performed in parallel. An additional preview mode, which renders a number of dedicated frames, provides a direct feedback and quick overview. For the evaluation, we were focusing on the analysis of intracranial aneurysms and were able to show that the system can be successfully applied. Further on, the system was developed in a way that allows easy integration of other analysis tasks.

  9. Inverse Problems and Imaging Web site: http://www.aimSciences.org Volume 2, No. 2, 2008, 187204

    E-print Network

    Nikolova, Mila

    ­204 TWO-PHASE APPROACH FOR DEBLURRING IMAGES CORRUPTED BY IMPULSE PLUS GAUSSIAN NOISE Jian-Feng Cai to deblur images corrupted with mixed impulse plus Gaussian noise, and hence it can address a much wider Mathematics Subject Classification. Primary: 94A08; Secondary: 49N45, 68U10. Key words and phrases. Image

  10. Development of a web-based DICOM-SR viewer for CAD data of multiple sclerosis lesions in an imaging informatics-based efolder

    NASA Astrophysics Data System (ADS)

    Ma, Kevin; Wong, Jonathan; Zhong, Mark; Zhang, Jeff; Liu, Brent

    2014-03-01

    In the past, we have presented an imaging-informatics based eFolder system for managing and analyzing imaging and lesion data of multiple sclerosis (MS) patients, which allows for data storage, data analysis, and data mining in clinical and research settings. The system integrates the patient's clinical data with imaging studies and a computer-aided detection (CAD) algorithm for quantifying MS lesion volume, lesion contour, locations, and sizes in brain MRI studies. For compliance with IHE integration protocols, long-term storage in PACS, and data query and display in a DICOM compliant clinical setting, CAD results need to be converted into DICOM-Structured Report (SR) format. Open-source dcmtk and customized XML templates are used to convert quantitative MS CAD results from MATLAB to DICOM-SR format. A web-based GUI based on our existing web-accessible DICOM object (WADO) image viewer has been designed to display the CAD results from generated SR files. The GUI is able to parse DICOM-SR files and extract SR document data, then display lesion volume, location, and brain matter volume along with the referenced DICOM imaging study. In addition, the GUI supports lesion contour overlay, which matches a detected MS lesion with its corresponding DICOM-SR data when a user selects either the lesion or the data. The methodology of converting CAD data in native MATLAB format to DICOM-SR and displaying the tabulated DICOM-SR along with the patient's clinical information, and relevant study images in the GUI will be demonstrated. The developed SR conversion model and GUI support aim to further demonstrate how to incorporate CAD post-processing components in a PACS and imaging informatics-based environment.

  11. Characterizing stroke lesions using digital templates and lesion quantification tools in a web-based imaging informatics system for a large-scale stroke rehabilitation clinical trial

    NASA Astrophysics Data System (ADS)

    Wang, Ximing; Edwardson, Matthew; Dromerick, Alexander; Winstein, Carolee; Wang, Jing; Liu, Brent

    2015-03-01

    Previously, we presented an Interdisciplinary Comprehensive Arm Rehabilitation Evaluation (ICARE) imaging informatics system that supports a large-scale phase III stroke rehabilitation trial. The ePR system is capable of displaying anonymized patient imaging studies and reports, and the system is accessible to multiple clinical trial sites and users across the United States via the web. However, the prior multicenter stroke rehabilitation trials lack any significant neuroimaging analysis infrastructure. In stroke related clinical trials, identification of the stroke lesion characteristics can be meaningful as recent research shows that lesion characteristics are related to stroke scale and functional recovery after stroke. To facilitate the stroke clinical trials, we hope to gain insight into specific lesion characteristics, such as vascular territory, for patients enrolled into large stroke rehabilitation trials. To enhance the system's capability for data analysis and data reporting, we have integrated new features with the system: a digital brain template display, a lesion quantification tool and a digital case report form. The digital brain templates are compiled from published vascular territory templates at each of 5 angles of incidence. These templates were updated to include territories in the brainstem using a vascular territory atlas and the Medical Image Processing, Analysis and Visualization (MIPAV) tool. The digital templates are displayed for side-by-side comparisons and transparent template overlay onto patients' images in the image viewer. The lesion quantification tool quantifies planimetric lesion area from user-defined contour. The digital case report form stores user input into a database, then displays contents in the interface to allow for reviewing, editing, and new inputs. In sum, the newly integrated system features provide the user with readily-accessible web-based tools to identify the vascular territory involved, estimate lesion area, and store these results in a web-based digital format.

  12. A Web application for the management of clinical workflow in image-guided and adaptive proton therapy for prostate cancer treatments.

    PubMed

    Yeung, Daniel; Boes, Peter; Ho, Meng Wei; Li, Zuofeng

    2015-01-01

    Image-guided radiotherapy (IGRT), based on radiopaque markers placed in the prostate gland, was used for proton therapy of prostate patients. Orthogonal X-rays and the IBA Digital Image Positioning System (DIPS) were used for setup correction prior to treatment and were repeated after treatment delivery. Following a rationale for margin estimates similar to that of van Herk,(1) the daily post-treatment DIPS data were analyzed to determine if an adaptive radiotherapy plan was necessary. A Web application using ASP.NET MVC5, Entity Framework, and an SQL database was designed to automate this process. The designed features included state-of-the-art Web technologies, a domain model closely matching the workflow, a database-supporting concurrency and data mining, access to the DIPS database, secured user access and roles management, and graphing and analysis tools. The Model-View-Controller (MVC) paradigm allowed clean domain logic, unit testing, and extensibility. Client-side technologies, such as jQuery, jQuery Plug-ins, and Ajax, were adopted to achieve a rich user environment and fast response. Data models included patients, staff, treatment fields and records, correction vectors, DIPS images, and association logics. Data entry, analysis, workflow logics, and notifications were implemented. The system effectively modeled the clinical workflow and IGRT process. PMID:26103504

  13. "The Image of PLAZA" : an analysis of an academic community web space using Kevin Lynch's approach for "The image of the city"

    E-print Network

    Kim, Jaecheol, 1971-

    2004-01-01

    This thesis is a case study of how the design issues of a community web space can be approached from the viewpoint of urban design not in terms of appearance but in terms of its functionality. An urban public place like a ...

  14. Categorical and Specificity Differences between User-Supplied Tags and Search Query Terms for Images. An Analysis of "Flickr" Tags and Web Image Search Queries

    ERIC Educational Resources Information Center

    Chung, EunKyung; Yoon, JungWon

    2009-01-01

    Introduction: The purpose of this study is to compare characteristics and features of user supplied tags and search query terms for images on the "Flickr" Website in terms of categories of pictorial meanings and level of term specificity. Method: This study focuses on comparisons between tags and search queries using Shatford's categorization…

  15. Live imaging of prions reveals nascent PrPSc in cell-surface, raft-associated amyloid strings and webs

    PubMed Central

    Rouvinski, Alexander; Karniely, Sharon; Kounin, Maria; Moussa, Sanaa; Goldberg, Miri D.; Warburg, Gabriela; Lyakhovetsky, Roman; Papy-Garcia, Dulce; Kutzsche, Janine; Korth, Carsten; Carlson, George A.; Godsave, Susan F.; Peters, Peter J.; Luhr, Katarina; Kristensson, Krister

    2014-01-01

    Mammalian prions refold host glycosylphosphatidylinositol-anchored PrPC into ?-sheet–rich PrPSc. PrPSc is rapidly truncated into a C-terminal PrP27-30 core that is stable for days in endolysosomes. The nature of cell-associated prions, their attachment to membranes and rafts, and their subcellular locations are poorly understood; live prion visualization has not previously been achieved. A key obstacle has been the inaccessibility of PrP27-30 epitopes. We overcame this hurdle by focusing on nascent full-length PrPSc rather than on its truncated PrP27-30 product. We show that N-terminal PrPSc epitopes are exposed in their physiological context and visualize, for the first time, PrPSc in living cells. PrPSc resides for hours in unexpected cell-surface, slow moving strings and webs, sheltered from endocytosis. Prion strings observed by light and scanning electron microscopy were thin, micrometer-long structures. They were firmly cell associated, resisted phosphatidylinositol-specific phospholipase C, aligned with raft markers, fluoresced with thioflavin, and were rapidly abolished by anti-prion glycans. Prion strings and webs are the first demonstration of membrane-anchored PrPSc amyloids. PMID:24493590

  16. Teleradiology network system and computer-aided diagnosis workstation using the web medical image conference system with a new information security solution

    NASA Astrophysics Data System (ADS)

    Satoh, Hitoshi; Niki, Noboru; Eguchi, Kenji; Ohmatsu, Hironobu; Kaneko, Masahiro; Kakinuma, Ryutaru; Moriyama, Noriyuki

    2011-03-01

    We have developed the teleradiology network system with a new information security solution that provided with web medical image conference system. In the teleradiology network system, the security of information network is very important subjects. We are studying the secret sharing scheme as a method safely to store or to transmit the confidential medical information used with the teleradiology network system. The confidential medical information is exposed to the risk of the damage and intercept. Secret sharing scheme is a method of dividing the confidential medical information into two or more tallies. Individual medical information cannot be decoded by using one tally at all. Our method has the function of RAID. With RAID technology, if there is a failure in a single tally, there is redundant data already copied to other tally. Confidential information is preserved at an individual Data Center connected through internet because individual medical information cannot be decoded by using one tally at all. Therefore, even if one of the Data Centers is struck and information is damaged, the confidential medical information can be decoded by using the tallies preserved at the data center to which it escapes damage. We can safely share the screen of workstation to which the medical image of Data Center is displayed from two or more web conference terminals at the same time. Moreover, Real time biometric face authentication system is connected with Data Center. Real time biometric face authentication system analyzes the feature of the face image of which it takes a picture in 20 seconds with the camera and defends the safety of the medical information. We propose a new information transmission method and a new information storage method with a new information security solution.

  17. A Web Graphics Primer.

    ERIC Educational Resources Information Center

    Buchanan, Larry

    1999-01-01

    Discusses the basic technical concepts of using graphics in World Wide Web pages, including: color depth and dithering, dots-per-inch, image size, file types, Graphics Interchange Formats (GIFs), Joint Photographic Experts Group (JPEG), format, and software recommendations. (AEF)

  18. Segmentation of cervical cell nuclei in high-resolution microscopic images: A new algorithm and a web-based software framework.

    PubMed

    Bergmeir, Christoph; García Silvente, Miguel; Benítez, José Manuel

    2012-09-01

    In order to automate cervical cancer screening tests, one of the most important and longstanding challenges is the segmentation of cell nuclei in the stained specimens. Though nuclei of isolated cells in high-quality acquisitions often are easy to segment, the problem lies in the segmentation of large numbers of nuclei with various characteristics under differing acquisition conditions in high-resolution scans of the complete microscope slides. We implemented a system that enables processing of full resolution images, and proposes a new algorithm for segmenting the nuclei under adequate control of the expert user. The system can work automatically or interactively guided, to allow for segmentation within the whole range of slide and image characteristics. It facilitates data storage and interaction of technical and medical experts, especially with its web-based architecture. The proposed algorithm localizes cell nuclei using a voting scheme and prior knowledge, before it determines the exact shape of the nuclei by means of an elastic segmentation algorithm. After noise removal with a mean-shift and a median filtering takes place, edges are extracted with a Canny edge detection algorithm. Motivated by the observation that cell nuclei are surrounded by cytoplasm and their shape is roughly elliptical, edges adjacent to the background are removed. A randomized Hough transform for ellipses finds candidate nuclei, which are then processed by a level set algorithm. The algorithm is tested and compared to other algorithms on a database containing 207 images acquired from two different microscope slides, with promising results. PMID:22306072

  19. A web-based approach to image-based lighting using high dynamic range images and QuickTime object virtual reality 

    E-print Network

    Cuellar, Tamara Melissa

    2008-10-10

    together, capturing images taken with a fish-eye lens, and using the 360º scanning feature of expensive and specialized panoramic cameras. In this thesis, I will utilize another effective method of omnidirectional photography. It is a process... the fact that the mirrored ball can very nearly 'see' 360 degrees of its environment and that unique view can cleverly be captured with a typical camera lens. That is, anything visible from the viewpoint of the mirrored ball will be visible to the camera...

  20. Images

    Cancer.gov

    Home News and Events Multimedia Library Images Images:  Cancer Biology Image: Cell with DNA 72 DPI | 300 DPIDrawing depicting DNA molecule unwinding from a chromosome inside the nucleus of a cell. NHGRI >> View All Cancer Pathology/Imaging Image: Female

  1. Intergalactic Medium Emission Observations with the Cosmic Web Imager. I. The Circum-QSO Medium of QSO 1549+19, and Evidence for a Filamentary Gas Inflow

    NASA Astrophysics Data System (ADS)

    Martin, D. Christopher; Chang, Daphne; Matuszewski, Matt; Morrissey, Patrick; Rahman, Shahin; Moore, Anna; Steidel, Charles C.

    2014-05-01

    The Palomar Cosmic Web Imager (PCWI), an integral field spectrograph designed to detect and map low surface brightness emission, has obtained imaging spectroscopic maps of Ly? from the circum-QSO medium (CQM) of QSO HS1549+19 at redshift z = 2.843. Extensive extended emission is detected from the CQM, consistent with fluorescent and pumped Ly? produced by the ionizing and Ly? continuum of the QSO. Many features present in PCWI spectral images match those detected in narrow-band images. Filamentary structures with narrow line profiles are detected in several cases as long as 250-400 kpc. One of these is centered at a velocity redshifted with respect to the systemic velocity, and displays a spatially collimated and kinematically cold line profile increasing in velocity width approaching the QSO. This suggests that the filament gas is infalling onto the QSO, perhaps in a cold accretion flow. Because of the strong ionizing flux, the neutral column density is low, typically N(H\\,\\scriptsize{I}) \\sim 10^{12}{--} 10^{15}\\, cm^{ - 2}, and the line center optical depth is also low (typically ?0 < 10), insufficient to display well separated double peak emission characteristic of higher line optical depths. With a simple ionization and cloud model we can very roughly estimate the total gas mass (log M gas = 12.5 ± 0.5) and the total (log M tot = 13.3 ± 0.5). We can also calculate a kinematic mass from the total line profile (2 × 1013 M ?), which agrees with the mass estimated from the gas emission. The intensity-binned spectrum of the CQM shows a progression in kinematic properties consistent with heirarchical structure formation.

  2. Intergalactic medium emission observations with the cosmic web imager. I. The circum-QSO medium of QSO 1549+19, and evidence for a filamentary gas inflow

    SciTech Connect

    Martin, D. Christopher; Chang, Daphne; Matuszewski, Matt; Morrissey, Patrick; Rahman, Shahin; Moore, Anna; Steidel, Charles C.

    2014-05-10

    The Palomar Cosmic Web Imager (PCWI), an integral field spectrograph designed to detect and map low surface brightness emission, has obtained imaging spectroscopic maps of Ly? from the circum-QSO medium (CQM) of QSO HS1549+19 at redshift z = 2.843. Extensive extended emission is detected from the CQM, consistent with fluorescent and pumped Ly? produced by the ionizing and Ly? continuum of the QSO. Many features present in PCWI spectral images match those detected in narrow-band images. Filamentary structures with narrow line profiles are detected in several cases as long as 250-400 kpc. One of these is centered at a velocity redshifted with respect to the systemic velocity, and displays a spatially collimated and kinematically cold line profile increasing in velocity width approaching the QSO. This suggests that the filament gas is infalling onto the QSO, perhaps in a cold accretion flow. Because of the strong ionizing flux, the neutral column density is low, typically N(H I)?10{sup 12}--10{sup 15} cm{sup ?2}, and the line center optical depth is also low (typically ?{sub 0} < 10), insufficient to display well separated double peak emission characteristic of higher line optical depths. With a simple ionization and cloud model we can very roughly estimate the total gas mass (log M {sub gas} = 12.5 ± 0.5) and the total (log M {sub tot} = 13.3 ± 0.5). We can also calculate a kinematic mass from the total line profile (2 × 10{sup 13} M {sub ?}), which agrees with the mass estimated from the gas emission. The intensity-binned spectrum of the CQM shows a progression in kinematic properties consistent with heirarchical structure formation.

  3. Scaling the Web Composing Web

    E-print Network

    Menascé, Daniel A.

    Scaling the Web Composing Web Services:A QoS View A n Internet application can invoke several ser- vices -- a stock-trading Web service, for example, could invoke a payment service, which could then invoke an authentication service. Such a scenario is called a composite Web service, and it can

  4. , Web . Web Google[1] CLEVER[2] ,

    E-print Network

    Shirai, Kiyoaki

    Web 1 , Web , Web , Web . Web , Web , Web . , , . , , , . , , 1 . , . , 1 , . , , Web . , , . Web . Google[1] CLEVER[2] , . , 1 , [3]. , . Amitay , HTML , . , , [4]. , Web . , [5]. , HTML Amitay . , , , 1: Web . 2 , · Web . , , 200 . , . , 10 . , . , 1 . , . , . 2.1 1: Web 14 7 386 296 27.6 42.3 #12

  5. Big data in multiple sclerosis: development of a web-based longitudinal study viewer in an imaging informatics-based eFolder system for complex data analysis and management

    NASA Astrophysics Data System (ADS)

    Ma, Kevin; Wang, Ximing; Lerner, Alex; Shiroishi, Mark; Amezcua, Lilyana; Liu, Brent

    2015-03-01

    In the past, we have developed and displayed a multiple sclerosis eFolder system for patient data storage, image viewing, and automatic lesion quantification results stored in DICOM-SR format. The web-based system aims to be integrated in DICOM-compliant clinical and research environments to aid clinicians in patient treatments and disease tracking. This year, we have further developed the eFolder system to handle big data analysis and data mining in today's medical imaging field. The database has been updated to allow data mining and data look-up from DICOM-SR lesion analysis contents. Longitudinal studies are tracked, and any changes in lesion volumes and brain parenchyma volumes are calculated and shown on the webbased user interface as graphical representations. Longitudinal lesion characteristic changes are compared with patients' disease history, including treatments, symptom progressions, and any other changes in the disease profile. The image viewer is updated such that imaging studies can be viewed side-by-side to allow visual comparisons. We aim to use the web-based medical imaging informatics eFolder system to demonstrate big data analysis in medical imaging, and use the analysis results to predict MS disease trends and patterns in Hispanic and Caucasian populations in our pilot study. The discovery of disease patterns among the two ethnicities is a big data analysis result that will help lead to personalized patient care and treatment planning.

  6. Web Engineering

    SciTech Connect

    White, Bebo

    2003-06-23

    Web Engineering is the application of systematic, disciplined and quantifiable approaches to development, operation, and maintenance of Web-based applications. It is both a pro-active approach and a growing collection of theoretical and empirical research in Web application development. This paper gives an overview of Web Engineering by addressing the questions: (a) why is it needed? (b) what is its domain of operation? (c) how does it help and what should it do to improve Web application development? and (d) how should it be incorporated in education and training? The paper discusses the significant differences that exist between Web applications and conventional software, the taxonomy of Web applications, the progress made so far and the research issues and experience of creating a specialization at the master's level. The paper reaches a conclusion that Web Engineering at this stage is a moving target since Web technologies are constantly evolving, making new types of applications possible, which in turn may require innovations in how they are built, deployed and maintained.

  7. Designing a Web Page.

    ERIC Educational Resources Information Center

    Ackermann, Ernest; Hartman, Karen

    2000-01-01

    Presents technical issues, design considerations and resource sites to consider when designing a Web site. Discusses fonts; colors; screen resolutions; statement of purpose; audience; content; layout; size and number of images; spacing and emphasis; browser-supported features; grammar and spelling; revision/improvement; and testing. (AEF)

  8. Spider Web Pattern

    NASA Technical Reports Server (NTRS)

    2006-01-01

    A delicate pattern, like that of a spider web, appears on top of the Mars residual polar cap, after the seasonal carbon-dioxide ice slab has disappeared. Next spring, these will likely mark the sites of vents when the carbon-dioxide ice cap returns. This Mars Global Surveyor, Mars Orbiter Camera image is about 3-kilometers wide (2-miles).

  9. Web Service

    MedlinePLUS

    ... www.nlm.nih.gov/medlineplus/webservices.html MedlinePlus Web Service To use the sharing features on this ... please enable JavaScript. MedlinePlus offers a search-based Web service that provides access to MedlinePlus health topic ...

  10. Imaging.

    PubMed

    Wilkinson, R

    1986-12-01

    Imaging of the musculoskeletal system includes many modalities and is an area that is changing rapidly. Selection of the most accurate techniques and avoidance of duplication are vital to both good patient care and cost containment. PMID:3466135

  11. Sensor web

    NASA Technical Reports Server (NTRS)

    Delin, Kevin A. (Inventor); Jackson, Shannon P. (Inventor)

    2011-01-01

    A Sensor Web formed of a number of different sensor pods. Each of the sensor pods include a clock which is synchronized with a master clock so that all of the sensor pods in the Web have a synchronized clock. The synchronization is carried out by first using a coarse synchronization which takes less power, and subsequently carrying out a fine synchronization to make a fine sync of all the pods on the Web. After the synchronization, the pods ping their neighbors to determine which pods are listening and responded, and then only listen during time slots corresponding to those pods which respond.

  12. Semantic Web Enabled Composition of Web Services

    E-print Network

    Medjahed, Brahim

    Semantic Web Enabled Composition of Web Services Brahim Medjahed Dissertation submitted Falls Church, Virginia, USA Keywords: Semantic Web - Web Service - Ontology - Service Composition. Copyright 2004, Brahim Medjahed #12;Semantic Web Enabled Composition of Web Services Brahim Medjahed

  13. Goal-oriented Web search

    E-print Network

    Williamson, Victor Lamont

    2010-01-01

    We have designed and implemented a Goal-oriented Web application to search videos, images, and news by querying YouTube, Truveo, Google and Yahoo search services. The Planner module decomposes functionality in Goals and ...

  14. [Imaging].

    PubMed

    Chevrot, A; Drapé, J L; Godefroy, D; Dupont, A M; Pessis, E; Sarazin, L; Minoui, A

    1997-01-01

    The panoply of imaging techniques useful in podology is essentially limited to X-rays. Standard "standing" and "lying" X-rays furnish most of the required information. Arthrography is sometimes performed, in particular for trauma or tumour of the ankle. CT scan and MRI make a decisive contribution in difficult cases, notably in fractures and in small fractures without displacement. The two latter techniques are useful in tendon, ligament and muscular disorders, where echography is also informative. Rigorous analysis of radiographies and a good knowledge of foot disorders make these imaging techniques efficacious. PMID:9035538

  15. EVOLUZIONE-WEB -1 -Evoluzione del Web

    E-print Network

    De Antonellis, Valeria

    EVOLUZIONE-WEB - 1 - Evoluzione del Web (fonte prof. Polillo) #12;- 2 - L'evoluzione del web EVOLUZIONE-WEB · Dal primo sito Web (1991) il Web è in continua crescita, e in continua evoluzione tecnologia, il mercato, i comportamenti delle persone · Le fasi della storia del Web: Web 1.0, Web 2.0, il

  16. Challenge 3: Extending the Web to the

    E-print Network

    Subramanian, Lakshminarayanan

    Challenge 3: Extending the Web to the Developing World #12;High School ­ 60km Outside Nairobi Extremely low bandwidth connectivity in many parts of the world #12;Web Page Size #12;2Mbps Connection #12;The Web under Poor Connectivity · Video + audio + images => web pages are huge A couple Kbps per user

  17. Webbing It.

    ERIC Educational Resources Information Center

    Brandsberg, Jennifer

    1996-01-01

    Provides a quick look at some World Wide Web sites that contain current election year information. Recommends Project Vote Smart, a site with links to online news organizations, the home pages of all presidential candidates, and other political sites. Briefly notes several interactive CD-ROM resources. (MJP)

  18. WebMIRS: web-based medical information retrieval system

    NASA Astrophysics Data System (ADS)

    Long, L. Rodney; Pillemer, Stanley R.; Lawrence, Reva C.; Goh, Gin-Hua; Neve, Leif; Thoma, George R.

    1997-12-01

    At the Lister Hill National Center for Biomedical Communications, a research and development division of the National Library of Medicine (NLM), we are developing a prototype multimedia database system to provide World Wide Web access to biomedical databases. WebMIRS (Web-based Medical Information Retrieval System) will allow access to databases containing text and images and will allow database query by standard SQL, by image content, or by a combination of the two. The system is being developed in the form of Java applets, which will communicate with the Informix DBMS on an NLM Sun workstation running the Solaris operating system. The system architecture will allow access from any hardware platform, which supports a Java-enabled Web browser, such as Netscape or Internet Explorer. Initial databases will include data from two national health surveys conducted by the National Center for Health Statistics (NCHS), and will include x-ray images from those surveys. In addition to describing in- house research in database access systems, this paper describes ongoing work toward querying by image content. Image content search capability will include capability to search for x-ray images similar to an input image with respect to vertebral morphometry used to characterize features such as fractures and disc space narrowing.

  19. World Wide Web( WWW ) Greenberg Web

    E-print Network

    Shirai, Kiyoaki

    WWW 1 World Wide Web( WWW ) WWW Web Web Greenberg Web 30% [1] Web WWW Web WWW [2] [3] WWW 2 2.1 WWW Web 1 1: · 1 · 1 #12;· Web Web 2: 2 2 Web 2.2 Web Web URL URL .html / Yahoo http://headlines.yahoo.co.jp/hl?a=2 0011205-00000101-yom-soci URL onmouseover on- mouseout JavaScript 2.1 2.3 URL URL 1. Web HTML 2. 1

  20. Web Scraping for Astronomy

    NASA Astrophysics Data System (ADS)

    Derriere, S.; Boch, T.

    2012-09-01

    Astronomical web sites and portals are used daily by astronomers, and are increasingly interactive and customizable, mainly through the use of JavaScript. In addition, information often arises from the linking of remotely distributed data and contents. All these potential links can not always be defined in advance and stored in a web document for at least two reasons: they could potentially increase the size of the document source by a large fraction; and sometimes only the user (and not the document creator) knows where relevant links should be provided. Web scraping is the process of automatically collecting Web information. In this context, we started developing a method allowing retrieval of remote information, and display of this information (including links to remote websites) in the current document, triggered by a very simple action from the user: the selection of a portion of text in the web document. Our first prototype deals with astronomical object names. It is written in JavaScript, and can easily be implemented in a web document, or used as a bookmarklet. Whenever the user selects a portion of text in a web document, a request to the Sesame name resolver is made to test if this is a valid object identifier. On success, information retrieved in JSON allows to display a tooltip with additional information on this object such as its coordinates, links to various CDS services, image thumbnails, etc. We present the current status of this work, and discuss how it could be extended in the future to other applications.

  1. Visual Based Retrieval Systems and Web Mining--Introduction.

    ERIC Educational Resources Information Center

    Iyengar, S. S.

    2001-01-01

    Briefly discusses Web mining and image retrieval techniques, and then presents a summary of articles in this special issue. Articles focus on Web content mining, artificial neural networks as tools for image retrieval, content-based image retrieval systems, and personalizing the Web browsing experience using media agents. (AEF)

  2. WEB servicesWEB services Samuel Tardieu

    E-print Network

    Tardieu, Samuel

    WEB servicesWEB services Samuel Tardieu École Nationale Supérieure des Télécommunications sam@enst.fr #12;ConceptsConcepts Web services are a new breed of Web application. They are self-contained, self-describing, modular applications that can be published, located, and invoked across the Web. Web services perform

  3. WEB DE ESQUEMAS WEB DE ESQUEMAS ALGORTMICOSALGORTMICOS

    E-print Network

    Giménez, Domingo

    WEB DE ESQUEMAS WEB DE ESQUEMAS ALGORÍTMICOSALGORÍTMICOS PROYECTO FINAL DE CARRERA DE INGENIERÍA MOTIVACIÓNINTRODUCCION Y MOTIVACIÓN PROPUESTA DE SOLUCIÓNPROPUESTA DE SOLUCIÓN Aplicación web con C++Aplicación web con FUNCIONAMIENTO DE WEAFUNCIONAMIENTO DE WEA WEA: Web de Esquemas AlgorítmicosWEA: Web de Esquemas Algorítmicos

  4. Web Information Retrieval Author Preprint for Web

    E-print Network

    Hawking, David

    indexes is often called `the hidden web', `the deep web', or `web dark matter' (Bailey et al., 2000). 2Web Information Retrieval Author Preprint for Web Nick Craswell and David Hawking 18 April 2009 1 Introduction This chapter outlines some distinctive characteristics of web information re- trieval, starting

  5. The urologic epithelial stem cell database (UESC) – a web tool for cell type-specific gene expression and immunohistochemistry images of the prostate and bladder

    PubMed Central

    Pascal, Laura E; Deutsch, Eric W; Campbell, David S; Korb, Martin; True, Lawrence D; Liu, Alvin Y

    2007-01-01

    Background Public databases are crucial for analysis of high-dimensional gene and protein expression data. The Urologic Epithelial Stem Cells (UESC) database is a public database that contains gene and protein information for the major cell types of the prostate, prostate cancer cell lines, and a cancer cell type isolated from a primary tumor. Similarly, such information is available for urinary bladder cell types. Description Two major data types were archived in the database, protein abundance localization data from immunohistochemistry images, and transcript abundance data principally from DNA microarray analysis. Data results were organized in modules that were made to operate independently but built upon a core functionality. Gene array data and immunostaining images for human and mouse prostate and bladder were made available for interrogation. Data analysis capabilities include: (1) CD (cluster designation) cell surface protein data. For each cluster designation molecule, a data summary allows easy retrieval of images (at multiple magnifications). (2) Microarray data. Single gene or batch search can be initiated with Affymetrix Probeset ID, Gene Name, or Accession Number together with options of coalescing probesets and/or replicates. Conclusion Databases are invaluable for biomedical research, and their utility depends on data quality and user friendliness. UESC provides for database queries and tools to examine cell type-specific gene expression (normal vs. cancer), whereas most other databases contain only whole tissue expression datasets. The UESC database provides a valuable tool in the analysis of differential gene expression in prostate cancer genes in cancer progression. PMID:18072977

  6. Sequential detection of web defects

    DOEpatents

    Eichel, Paul H. (Albuquerque, NM); Sleefe, Gerard E. (Cedar Crest, NM); Stalker, K. Terry (Albuquerque, NM); Yee, Amy A. (Albuquerque, NM)

    2001-01-01

    A system for detecting defects on a moving web having a sequential series of identical frames uses an imaging device to form a real-time camera image of a frame and a comparitor to comparing elements of the camera image with corresponding elements of an image of an exemplar frame. The comparitor provides an acceptable indication if the pair of elements are determined to be statistically identical; and a defective indication if the pair of elements are determined to be statistically not identical. If the pair of elements is neither acceptable nor defective, the comparitor recursively compares the element of said exemplar frame with corresponding elements of other frames on said web until one of the acceptable or defective indications occur.

  7. Programmazione Web Introduzione

    E-print Network

    De Antonellis, Valeria

    Programmazione Web Introduzione 12014/2015 #12;2014/2015 Programmazione Web - Introduzione 2 Un'applicazione Web (I) #12;2014/2015 Programmazione Web - Introduzione 3 Un'applicazione Web (II) #12;2014/2015 Programmazione Web - Introduzione 4 Un'applicazione Web (III) #12;2014/2015 Programmazione Web - Introduzione 5

  8. A Web Portal that Enables Collaborative Use of Advanced Medical Image Processing and Informatics Tools through the Biomedical Informatics Research Network (BIRN)

    PubMed Central

    Murphy, Shawn N.; Mendis, Michael E.; Grethe, Jeffrey S.; Gollub, Randy L.; Kennedy, David; Rosen, Bruce R.

    2006-01-01

    Launched in 2001, the Biomedical Informatics Research Network (BIRN; http://www.nbirn.net) is an NIH – NCRR initiative that enables researchers to collaborate in an environment for biomedical research and clinical information management, focused particularly upon medical imaging. Although it supports a vast array of programs to transform and calculate upon medical images, three fundamental problems emerged that inhibited collaborations. The first was that the complexity of the programs, and at times legal restrictions, combined to prohibit these programs from being accessible to all members of the teams and indeed the general researcher, although this was a fundamental mission of the BIRN. Second, the calculations that needed to be performed were very complex, and required many steps that often needed to be performed by different groups. Third, many of the analysis programs were not interoperable. These problems combined to created tremendous logistical problems. The solution was to create a portal-based workflow application that allowed the complex, collaborative tasks to take place and enabled new kinds of calculations that had not previously been practical. PMID:17238407

  9. Managing Web Data Managing Web Data

    E-print Network

    Davulcu, Hasan

    Managing Web Data Dan Suciu AT&T Labs Managing Web Data Sigmod, 1999 Dan Suciu AT&T Labs 1 #12;How the Web is Today HTML documents all intended for human consumption many are generated automatically by applications Managing Web Data Sigmod, 1999 Dan Suciu AT&T Labs 2 #12;Paradigm Shift on the Web applications

  10. Scaling the Web Scaling Web Sites

    E-print Network

    Menascé, Daniel A.

    Scaling the Web Scaling Web Sites Through Caching A large jump in a Web site's traffic may indi, pushing the site's through- put to its maximum point. When a Web site becomes overloaded, cus- tomers grow-generated revenue and may even tarnish the reputation of organizations relying on Web sites to support mission

  11. Siena College Web Governance

    E-print Network

    Siena College Web Governance Web Governance: Roles & Responsibilities. WEB ADVISORY COMMITTEE (WAC) The Web Advisory Committee is the Owner of the Siena homepage. The Web Advisory Committee is responsible for: Providing the process that will move Siena College

  12. Webbed Footnotes : collaborative annotation on the Web

    E-print Network

    Golder, Scott Andrew

    2005-01-01

    More and more, web users are moving from simply consuming content on the web to creating it as well, in the form of discussion boards, weblogs, wikis, and other collaborative and conversational media. Despite this, the web ...

  13. Developpement Web -Servlet Developpement Web -Servlet

    E-print Network

    Richer, Jean-Michel

    D´eveloppement Web - Servlet D´eveloppement Web - Servlet Jean-Michel Richer jean - Servlet Plan Plan 1 Introduction 2 Servlet 3 Classes et interfaces 4 Mise en application 5 Bibliographie 2 / 34 #12;D´eveloppement Web - Servlet Introduction Programmation Web avec Java Objectifs · initiation

  14. Web Information Retrieval Web Science Course

    E-print Network

    Nejdl, Wolfgang

    1 Web Information Retrieval Web Science Course #12;2 #12;What to Expect · Information Retrieval on the Web ­ Differences to traditional IR · Selected Papers 3 #12;4 Information Retrieval Basics #12 documents on the Internet ­ Searching the World Wide Web #12;16 Recent IR History · 2000's ­ Link analysis

  15. Agents on the Web The Sentient Web

    E-print Network

    Huhns, Michael N.

    Agents on the Web The Sentient Web "I n a startling revelation, a team of uni- versity scientists. In spite of the ominous tone typically cho- sen for dramatic effect, a sentient Web would be more helpful and much easier for people to use. When people find the Web frustrating, it is usual- ly not because

  16. Web of Science Web of Science

    E-print Network

    Wu, Yih-Min

    Web of Science 2015 #12; Web of Science (SCIE, SSCI, AHCI) EndNote Journal Citation Reports (JCR forecasted Nobel Prize recipients 37 #12;The CRYSTAL BALL is ... mining the citations in Web of Science #12) · Each year, the Thomson Reuters editorial staff reviews over 2,500 journal titles for inclusion in Web

  17. WEB HARVESTING Wolfgang Gatterbauer

    E-print Network

    Gatterbauer, Wolfgang

    with dynamic or deep web pages, and tools for reading, indexing and comparing the textual content of pages; (2WEB HARVESTING Wolfgang Gatterbauer Computer Science and Engineering University of Washington, USA SYNONYMS web data extraction, web information extraction, web mining DEFINITION Web harvesting describes

  18. Semantic Web 30Artificial

    E-print Network

    van Harmelen, Frank

    312007.11 "" Semantic Web 30Artificial IntelligenceKnowledge Representation Inductive Web datasets ---- Tim Berners-Lee Tim Berners-Lee " "" " Web 2.0---- Web Web 2.0 Frank van Harmelen W3C OWL Web Sesame RDF Aduna 100 Hirsch 35 5 15 ECAI2002 3 ISWC

  19. Four-dimensional characterization of a sheet-forming web

    DOEpatents

    Sari-Sarraf, Hamed (Lubbock, TX); Goddard, James S. (Clinton, TN)

    2003-04-22

    A method and apparatus are provided by which a sheet-forming web may be characterized in four dimensions. Light images of the web are recorded at a point adjacent the initial stage of the web, for example, near the headbox in a paperforming operation. The images are digitized, and the resulting data is processed by novel algorithms to provide a four-dimensional measurement of the web. The measurements include two-dimensional spatial information, the intensity profile of the web, and the depth profile of the web. These measurements can be used to characterize the web, predict its properties and monitor production events, and to analyze and quantify headbox flow dynamics.

  20. Banner Web Time Entry Web Timekeeping Manual

    E-print Network

    Heller, Barbara

    should not share your portal password with anyone. It is also important to log off the system when youIIT and Web Time Entry.......................................2 Transaction Status the System...........................................................10 #12;IIT Employee Web Timekeeping

  1. Lung Image Databases-2

    Cancer.gov

    Lung Image Database Consortium’s Normalized Relational Database • De-identified (anonymized) CT datasets • Publicly accessible • Web search tools • Cases from search results can be downloaded – ftp or DICOM De-identified CT datasets Digital Imaging and

  2. WebReport: a World Wide Web based clinical multimedia reporting system.

    PubMed Central

    Lowe, H. J.; Antipov, I.; Walker, W. K.; Polonkey, S. E.; Naus, G. J.

    1996-01-01

    This paper describes WebReport, a World Wide Web (WWW) client for the Image Engine multimedia clinical information system under development at the University of Pittsburgh. WebReport uses advanced HTML features such as frames, forms, tables and inline JPEG image display to provide an easy to use system for retrieving and viewing diagnostic images and reports generated by clinical procedures such as gastrointestinal endoscopy, radiology and surgical pathology. WebReport implements a number of WWW client-side features, such as HTML forms data entry verification and makes extensive use of the JavaScript programming language. The WebReport system uses a number of approaches for ensuring the confidentiality and security of patient data transmitted over the InterNet. Images Figure 2 PMID:8947679

  3. PHP SCILAB | .. | 1 (Web Site) Web Site ,

    E-print Network

    Kovintavewat, Piya

    PHP SCILAB | .. | 1 Chapter 1 , (Web Site) Web Site , (World Wide Web) : http://school.obec.go.th/borkruwitt/inter/internet01.gif HTML PHP,JavaScript,ASP PHP SCILAB AppServ PHP http://www.appservnetwork.com #12; PHP SCILAB | .. | 2 1. 2. Next 3. I

  4. Developpement Web -Servlet Developpement Web -Servlet

    E-print Network

    Richer, Jean-Michel

    D´eveloppement Web - Servlet D´eveloppement Web - Servlet Jean-Michel Richer jean - Servlet Plan Plan 1 Introduction 2 Le mod`ele MVC 3 Structure d'un site 4 Mise en application 5 Bibliographie 2 / 31 #12;D´eveloppement Web - Servlet Introduction Introduction Introduction 3 / 31 #12;D

  5. Web Mining: Machine Learning for Web Applications.

    ERIC Educational Resources Information Center

    Chen, Hsinchun; Chau, Michael

    2004-01-01

    Presents an overview of machine learning research and reviews methods used for evaluating machine learning systems. Ways that machine-learning algorithms were used in traditional information retrieval systems in the "pre-Web" era are described, and the field of Web mining and how machine learning has been used in different Web mining applications…

  6. Deep Web video

    ScienceCinema

    None Available

    2012-03-28

    To make the web work better for science, OSTI has developed state-of-the-art technologies and services including a deep web search capability. The deep web includes content in searchable databases available to web users but not accessible by popular search engines, such as Google. This video provides an introduction to the deep web search engine.

  7. Deep Web video

    SciTech Connect

    None Available

    2009-06-01

    To make the web work better for science, OSTI has developed state-of-the-art technologies and services including a deep web search capability. The deep web includes content in searchable databases available to web users but not accessible by popular search engines, such as Google. This video provides an introduction to the deep web search engine.

  8. Web 2.0 and You

    ERIC Educational Resources Information Center

    Baumbach, Donna J.

    2009-01-01

    The World Wide Web has come a long way in a very short time. A little more than a decade ago, with the invention of Mosaic, the first browser to display images inline with text instead of displaying images in a separate window, and Netscape, the first graphical user interface (browser), people began to experience a rapid expansion of information.…

  9. Introduction Semantic Web

    E-print Network

    Nejdl, Wolfgang

    Introduction Semantic Web Ontologies Linked Data Information Sources Information Extraction Web Application Use Cases Knowledge Bases Entity Linking Entity Retrieval Linked Data Quality Conclusions Papers for Presentations Resources Semantic Web: Extracting and Mining Structured Data from

  10. CERES Web Links

    Atmospheric Science Data Center

    2013-03-21

    ...   Web Links to Relevant CERES Information Relevant information about CERES, CERES references, ... Instrument Working Group Home Page Aerosol Retrieval Web Page  (Center for Satellite Applications and Research) ...

  11. A rendering approach for stereoscopic web pages

    NASA Astrophysics Data System (ADS)

    Zhang, Jianlong; Wang, Wenmin; Wang, Ronggang; Chen, Qinshui

    2014-03-01

    Web technology provides a relatively easy way to generate contents for us to recognize the world, and with the development of stereoscopic display technology, the stereoscopic devices will become much more popular. The combination of web technology and stereoscopic display technology will bring revolutionary visual effect. The Stereoscopic 3D (S3D) web pages, in which text, image and video may have different depth, can be displayed on stereoscopic display devices. This paper presents the approach about how to render two viewing S3D web pages including text, images, widgets: first, an algorithm should be developed in order to display stereoscopic elements like text, widgets by using 2D graphic library; second, a method should be presented to render stereoscopic web page based on current framework of the browser; third, a rough solution is invented to fix the problem that comes out in the method.

  12. Scaling the Web Architectures

    E-print Network

    Menascé, Daniel A.

    Scaling the Web Web Server Software Architectures W eb site scalability depends on several things -- workload characteristics,1 security mechanisms,2 Web cluster architectures3 -- as I've discussed in previous issues. Another important item that can affect a site's performance and scalability is the Web

  13. Introducing Web Application Development

    E-print Network

    Ding, Wei

    Introducing Web Application Development Instructor: Dr Wei Ding Development Instructor: Dr.Wei Ding Fall 2009 1CS 437/637 Database-BackedWeb Sites andWeb Services Introduction: Internet vs. World Wide Web Internet is an interconnected network of thousands ofInternet is an interconnected network

  14. Web Auctions, Virtual Communities,

    E-print Network

    Magoulas, George D.

    Chapter 6 Web Auctions, Virtual Communities, and Web Portals #12;Contents In this lecture, we will look at: · Origins and key characteristics of the six major auction types · Strategies for Web auction opportunity that is perfect for the Web. · An auction site can charge both buyers and sellers to participate

  15. TecnologieWeb LABORATORIO

    E-print Network

    Goy, Anna

    1 TecnologieWeb LABORATORIO a.a. 2015/2016 · WordPress e InstantWP · Progettazione e realizzazione di un sito web Goy - a.a. 2015/2016 Tecnologie Web 1 TecnologieWeb ­ WordPress WordPress si può possibile scaricare il CMS d i ll l i PC Goy - a.a. 2015/2016 Tecnologie Web 2 da installare sul proprio PC

  16. Web of People Improving Search on the Web

    E-print Network

    Nejdl, Wolfgang

    Web of People Improving Search on the Web Wolfgang Nejdl L3S Research Center Hannover, Germany #12;19/10/10 2 Overview · Web Science / Web of People · Research Questions and Topics · Web Science @ L3S · User Generated Content and Search #12;19/10/10 3 Web Science / Web of People The World Wide Web is a Web

  17. Web Indexing with Meta Fields: A Survey of Web Objects in Polymer Chemistry.

    ERIC Educational Resources Information Center

    Qin, Jian; Wesley, Kathryn

    1998-01-01

    This survey of 1037 World Wide Web objects on polymer chemistry collected by four search engines (AltaVista, Lycos, Excite, Webcrawler) examined document information and use of meta fields, images, and chemical names. Found that the use of meta fields was not widespread and that knowledge of meta fields in HTML varied among Web object creators.…

  18. IMAGES, IMAGES, IMAGES

    SciTech Connect

    Marcus, A.

    1980-07-01

    The role of images of information (charts, diagrams, maps, and symbols) for effective presentation of facts and concepts is expanding dramatically because of advances in computer graphics technology, increasingly hetero-lingual, hetero-cultural world target populations of information providers, the urgent need to convey more efficiently vast amounts of information, the broadening population of (non-expert) computer users, the decrease of available time for reading texts and for decision making, and the general level of literacy. A coalition of visual performance experts, human engineering specialists, computer scientists, and graphic designers/artists is required to resolve human factors aspects of images of information. The need for, nature of, and benefits of interdisciplinary effort are discussed. The results of an interdisciplinary collaboration are demonstrated in a product for visualizing complex information about global energy interdependence. An invited panel will respond to the presentation.

  19. Web services @ MIT

    E-print Network

    Tyagi, Sapna DevendraSingh, 1978-

    2004-01-01

    There are several useful web services developed at MIT by students, faculty and researchers. However, they are scattered all over MIT. Most people at MIT are unaware of the availability of these web services and hence they ...

  20. Promoting Your Web Site.

    ERIC Educational Resources Information Center

    Raeder, Aggi

    1997-01-01

    Discussion of ways to promote sites on the World Wide Web focuses on how search engines work and how they retrieve and identify sites. Appropriate Web links for submitting new sites and for Internet marketing are included. (LRW)

  1. On Web Taxonomy Integration

    E-print Network

    Zhang, Dell

    We address the problem of integrating objects from a source taxonomy into a master taxonomy. This problem is not only pervasive on the nowadays web, but also important to the emerging semantic web. A straightforward approach ...

  2. spider web (Native) 

    E-print Network

    James R. Manhart

    2011-08-10

    Two Venezuelan clear-water streams were sampled to describe resource use by fishes, community interactions, and the effects of seasonal environmental change and resource availability on food web structure. Previous studies that compiled food webs...

  3. Cancer imaging archive available

    Cancer.gov

    NCI’s Cancer Imaging Program has inaugurated The Cancer Imaging Archive (TCIA), a web-accessible and unique clinical imaging archive linked to The Cancer Genome Atlas (TCGA) tissue repository. It contains a large proportion of original, pre-surgical MRIs from cases that have been genomically characterized in TCGA.

  4. Open Sensor Web Architecture Core Middleware: Sensor Collection Service

    E-print Network

    Melbourne, University of

    Open Sensor Web Architecture Core Middleware: Sensor Collection Service Xingchen Chu and Rajkumar of Melbourne Abstract A new trend called Sensor Web that is to make all types of web-resident sensors, instruments, and image devices as well as repositories of sensor data discoverable, accessible and where

  5. Reviews CD-ROM: Scientific American—The Amateur Scientist 3.0 Book: The New Resourceful Physics Teacher Equipment: DynaKar Book: The Fundamentals of Imaging Book: Teaching Secondary Physics Book: Novel Materials and Smart Applications Equipment: Cryptic disk Web Watch

    NASA Astrophysics Data System (ADS)

    2012-05-01

    WE RECOMMEND Scientific American—The Amateur Scientist 3.0 Article collection spans the decades DynaKar DynaKar drives dynamics experiments The Fundamentals of Imaging Author covers whole imaging spectrum Teaching Secondary Physics Effective teaching is all in the approach Novel Materials and Smart Applications/Novel materials sample pack Resources kit samples smart materials WORTH A LOOK Cryptic disk Metal disk spins life into discussions about energy, surfaces and kinetics HANDLE WITH CARE The New Resourceful Physics Teacher Book brings creativity to physics WEB WATCH Apps for tablets and smartphones can aid physics teaching

  6. Automatic Web Spreadsheet Data

    E-print Network

    Cafarella, Michael J.

    Automatic Web Spreadsheet Data Extraction Shirley Zhe Chen Michael Cafarella SSW 2013 #12.wto.org 3863 0.94% www.doh.wa.gov 3579 0.87% www.nsf.gov 2770 0.67% nces.ed.gov 2177 0.53% ·Our Web crawl spreadsheet with either a hierarchical left or top attribute region. #12;Web Spreadsheets Observations

  7. External Web Site Policy

    Cancer.gov

    Skip to Main Content Home Contact Us Search External Web Site Policy When you see this graphic notice ( ) next to a link on the Cancer Research Network Web site, it means that the link leads to another Web site that is not maintained by the federal

  8. Evaluating Web Usability

    ERIC Educational Resources Information Center

    Snider, Jean; Martin, Florence

    2012-01-01

    Web usability focuses on design elements and processes that make web pages easy to use. A website for college students was evaluated for underutilization. One-on-one testing, focus groups, web analytics, peer university review and marketing focus group and demographic data were utilized to conduct usability evaluation. The results indicated that…

  9. Implementing Good Web Style.

    ERIC Educational Resources Information Center

    Plankis, Brian J.

    1998-01-01

    Provides an overview of Web-site design and discusses three steps in building a site: audience analysis, design, and evaluation. Includes an analysis of loading speeds with and without graphics; examples of no-style, low-bandwidth, and high-bandwidth Web sites; and addresses for related Web sites. (PEN)

  10. Introduction web smantique

    E-print Network

    Gagnon, Michel

    Introduction au web sémantique Michel Gagnon École polytechnique de montréal #12;Plan de la présentation Définition et description générale Les différentes couches du web sémantique Exemples d'application Conclusion #12; Définition et description générale Les différentes couches du web sémantique Exemples d

  11. Programmation Web Introduction

    E-print Network

    Belaïd, Abdel

    1 Programmation Web Introduction #12;2 Introduction 10 séances ­ 1 h cours + 1h TD Notes 2 absences non justifiées) ­ Note finale : (2DS+TP)/3 ~TD #12;3 Objectif Créer une application Web;5 Introduction C'est quoi une application web ? ­ Une application dont l'infrastructure d'exécution est

  12. Temporal Search Web Archives

    E-print Network

    Waldmann, Uwe

    Temporal Search in Web Archives Dissertation zur Erlangung des Grades Doktor der 10.02.2010 (Klaus Lorenz Berberich) #12;vi #12;Abstract Web archives include both archives of contents originally published on the Web (e.g., the Internet Archive) but also archives of contents

  13. Web Reimbursement Reimbursement Policies

    E-print Network

    Web Reimbursement Reimbursement Policies 8/13/2012 For Harvard Business Use Only Page 1 section on the Harvard Travel Services web site: www.travel.harvard.edu or by calling (617) 495 payments are submitted as web reimbursements, they will be returned to the department for correct

  14. Engineering Adaptive Web Applications

    E-print Network

    Dolog, Peter

    Engineering Adaptive Web Applications Von Fakultät für Elektrotechnik und Informatik der Peter Dolog Engineering Adaptive Web Applications Dr. rer. nat. Dissertation 2006 #12;#12;Zusammenfassung: Nutzer von Web-Anwendungen stammen sich aus verschiedensten Nut- zergruppen, die sich in ihrem

  15. Web Services Distributed

    E-print Network

    Cook, William R.

    1 Web Services versus Distributed Objects William R. Cook, Janel Barfield University of Texas at Austin 2 How many times have you heard... 3 "Web Services suck..." ? 4 "WS are a bad version Objects 10 to 100 times faster than Web Services 7 Test Case Call a remote service that returns an integer

  16. Semantic Web Pascal Hitzler

    E-print Network

    Hitzler, Pascal

    Chapter 1 Semantic Web Pascal Hitzler Kno.e.sis Center, Wright State University, Dayton, OH, USA 1.1.1 Languages for Representing Knowledge on the Web ............................. 2 1.1.2 Formal the Semantic Web Vision ................................ 4 1.1.4 Linked Data

  17. Web Editors Tips & Tricks

    E-print Network

    Dhamala, Mukesh

    Web Editors VOLUME 4.0 Tips & Tricks Editing is the first step to success: One of the most important aspects of maintaining a successful web presence is the editing process. It is extremely important and review: studentaffairs.gsu.edu/web-support. · Phone: Hyphenate to separate sections. · Time: Reference

  18. Architecture and the Web.

    ERIC Educational Resources Information Center

    Money, William H.

    Instructors should be concerned with how to incorporate the World Wide Web into an information systems (IS) curriculum organized across three areas of knowledge: information technology, organizational and management concepts, and theory and development of systems. The Web fits broadly into the information technology component. For the Web to be…

  19. WWW: Neuroscience Web Sites

    ERIC Educational Resources Information Center

    Liu, Dennis

    2006-01-01

    The human brain contains an estimated 100 billion neurons, and browsing the Web, one might be led to believe that there's a Web site for every one of those cells. It's no surprise that there are lots of Web sites concerning the nervous system. After all, the human brain is toward the top of nearly everyone's list of favorite organs and of…

  20. Automating Information Discovery Within the Invisible Web

    NASA Astrophysics Data System (ADS)

    Sweeney, Edwina; Curran, Kevin; Xie, Ermai

    A Web crawler or spider crawls through the Web looking for pages to index, and when it locates a new page it passes the page on to an indexer. The indexer identifies links, keywords, and other content and stores these within its database. This database is searched by entering keywords through an interface and suitable Web pages are returned in a results page in the form of hyperlinks accompanied by short descriptions. The Web, however, is increasingly moving away from being a collection of documents to a multidimensional repository for sounds, images, audio, and other formats. This is leading to a situation where certain parts of the Web are invisible or hidden. The term known as the "Deep Web" has emerged to refer to the mass of information that can be accessed via the Web but cannot be indexed by conventional search engines. The concept of the Deep Web makes searches quite complex for search engines. Google states that the claim that conventional search engines cannot find such documents as PDFs, Word, PowerPoint, Excel, or any non-HTML page is not fully accurate and steps have been taken to address this problem by implementing procedures to search items such as academic publications, news, blogs, videos, books, and real-time information. However, Google still only provides access to a fraction of the Deep Web. This chapter explores the Deep Web and the current tools available in accessing it.

  1. Piggy Bank: Experience the Semantic Web Inside Your Web Browser

    E-print Network

    Huynh, David

    The Semantic Web Initiative envisions a Web wherein information is offered free of presentation, allowing more effective exchange and mixing across web sites and across web pages. But without substantial Semantic Web ...

  2. Drying of fiber webs

    DOEpatents

    Warren, D.W.

    1997-04-15

    A process and an apparatus are disclosed for high-intensity drying of fiber webs or sheets, such as newsprint, printing and writing papers, packaging paper, and paperboard or linerboard, as they are formed on a paper machine. The invention uses direct contact between the wet fiber web or sheet and various molten heat transfer fluids, such as liquefied eutectic metal alloys, to impart heat at high rates over prolonged durations, in order to achieve ambient boiling of moisture contained within the web. The molten fluid contact process causes steam vapor to emanate from the web surface, without dilution by ambient air; and it is differentiated from the evaporative drying techniques of the prior industrial art, which depend on the uses of steam-heated cylinders to supply heat to the paper web surface, and ambient air to carry away moisture, which is evaporated from the web surface. Contact between the wet fiber web and the molten fluid can be accomplished either by submersing the web within a molten bath or by coating the surface of the web with the molten media. Because of the high interfacial surface tension between the molten media and the cellulose fiber comprising the paper web, the molten media does not appreciatively stick to the paper after it is dried. Steam generated from the paper web is collected and condensed without dilution by ambient air to allow heat recovery at significantly higher temperature levels than attainable in evaporative dryers. 6 figs.

  3. Drying of fiber webs

    DOEpatents

    Warren, David W. (9253 Glenoaks Blvd., Sun Valley, CA 91352)

    1997-01-01

    A process and an apparatus for high-intensity drying of fiber webs or sheets, such as newsprint, printing and writing papers, packaging paper, and paperboard or linerboard, as they are formed on a paper machine. The invention uses direct contact between the wet fiber web or sheet and various molten heat transfer fluids, such as liquified eutectic metal alloys, to impart heat at high rates over prolonged durations, in order to achieve ambient boiling of moisture contained within the web. The molten fluid contact process causes steam vapor to emanate from the web surface, without dilution by ambient air; and it is differentiated from the evaporative drying techniques of the prior industrial art, which depend on the uses of steam-heated cylinders to supply heat to the paper web surface, and ambient air to carry away moisture, which is evaporated from the web surface. Contact between the wet fiber web and the molten fluid can be accomplished either by submersing the web within a molten bath or by coating the surface of the web with the molten media. Because of the high interfacial surface tension between the molten media and the cellulose fiber comprising the paper web, the molten media does not appreciately stick to the paper after it is dried. Steam generated from the paper web is collected and condensed without dilution by ambient air to allow heat recovery at significantly higher temperature levels than attainable in evaporative dryers.

  4. Using a Web OPAC To Deliver Digital Collections.

    ERIC Educational Resources Information Center

    Mathias, Eileen C.

    2003-01-01

    Describes a major digital imaging project just completed at the Ewell Sale Steward Library of the Academy of Natural Sciences (Philadelphia, PA). Discusses options that were considered for Web delivery of images and text, and reasons for choosing Innovative Interfaces, Inc.'s image management function. Describes the data entry process and reviews…

  5. Semantic Web Service Architecture --Evolving Web Service Standards toward the Semantic Web

    E-print Network

    Staab, Steffen

    Coverpage Semantic Web Service Architecture -- Evolving Web Service Standards toward the Semantic Web Tanja Sollazzo, Siegfried Handschuh, Steffen Staab, Martin Frank Abstract. The importance of Web by Semantic Web technologies such that a smooth evolution from Web services in the current Web to Web services

  6. Exploiting the Social and Semantic Web for Guided Web Archiving

    E-print Network

    Senellart, Pierre

    Exploiting the Social and Semantic Web for Guided Web Archiving Thomas Risse1 , Stefan Dietze1. The constantly growing amount of Web content and the suc- cess of the Social Web lead to increasing needs for Web archiving. These needs go beyond the pure preservation of Web pages. Web archives are turning

  7. Keeping the Web in Web 2.0 An HCI Approach to Designing Web

    E-print Network

    Cortes, Corinna

    Keeping the Web in Web 2.0 An HCI Approach to Designing Web Applications CHI 2007 Course Notes.....................................................................................................................................1 1. Web Application UI versus Desktop Application UI..............................................................................................................................2 3. Examples of State Management in Web Applications

  8. Web2OHS: a Web2.0-based omnibearing homecare system.

    PubMed

    Ku, Hao-Hsiang; Huang, Chung-Ming

    2010-03-01

    This study presents a Web2.0-based Omnibearing Homecare System (Web2OHS) that uses our proposed Application Layer Somecast (ALS) protocol for real-time interactions. Web2OHS provides omnibearing homecare and patientcare services for medical staff and caregivers, which are capable of assisting families, physicians, and nurses to obtain patients' physiological information using healthcare sensors, as well as monitor their behaviors using monitoring-based services. Web2OHS is a three-tier architecture that consists of Web2OHS clients, the Web2.0-based Patientcare Service Platform (WPSP), and the Medicine-based Active Database (MADB). Users can interact with Web2OHS using various appliances and retrieve the latest physiological and monitoring data using really simple syndication (RSS) and the proposed ALS services. The WPSP supports Web2.0-based applications, including blog-like monitoring services, monitoring-based RSS services, a real-time interaction services, and ALS services. The MADB provides a well-designed database, which stores physiological information, clinical information, digital imaging and communications in medicine image files, and monitoring frames. All of the delivered messages are based on extensible markup language and the Health Level 7 protocol. The proposed Web2OHS can support medical informatics and is compatible with related medical information systems. PMID:20007036

  9. Properties of food webs

    SciTech Connect

    Pimm, S.L.

    1980-04-01

    On the assumption that systems of interacting species, when perturbed from equilibrium, should return to equilibrium quickly, one can predict four properties of food webs: (1) food chains should be short, (2) species feeding on more than one trophic level (omnivores) should be rare, (3) those species that do feed on more than one trophic level should do so by feeding on species in adjacent trophic levels, and (4) host-parasitoid systems are likely to be exceptions to (1)-(3) when interaction coefficients permit greater trophic complexity. By generating random, model food webs (with many features identical to webs described from a variety of marine, freshwater, and terrestrial systems), it is possible to generate expected values for the number of trophic levels and the degree of omnivory within webs. When compared with these random webs, real world webs are shown to have fewer trophic levels, less omnivory, and very few omnivores feeding on nonadjacent trophic levels. Insect webs are shown to have a greater degree of omnivory than other webs. The confirmation of all these predictions from stability analyses suggests that system stability places necessary, though not sufficient, limitations on the possible shapes of food webs.

  10. Web 2.0

    NASA Astrophysics Data System (ADS)

    Gibson, Becky

    The Web is growing and changing from a paradigm of static publishing to one of participation and interaction. This change has implications for people with disabilities who rely on access to the Web for employment, information, entertainment, and increased independence. The interactive and collaborative nature of Web 2.0 can present access problems for some users. There are some best practices which can be put in place today to improve access. New specifications such as Accessible Rich Internet Applications (ARIA) and IAccessible2 are opening the doors to increasing the accessibility of Web 2.0 and beyond.

  11. Silicon Web Process Development

    NASA Technical Reports Server (NTRS)

    Duncan, C. S.; Seidensticker, R. G.; Hopkins, R. H.; Mchugh, J. P.; Hill, F. E.; Heimlich, M. E.; Driggers, J. M.

    1978-01-01

    Progress in the development of techniques to grow silicon web at 25 wq cm/min output rate is reported. Feasibility of web growth with simultaneous melt replenishment is discussed. Other factors covered include: (1) tests of aftertrimmers to improve web width; (2) evaluation of growth lid designs to raise speed and output rate; (3) tests of melt replenishment hardware; and (4) investigation of directed gas flow systems to control unwanted oxide deposition in the system and to improve convective cooling of the web. Compatibility with sufficient solar cell performance is emphasized.

  12. A web-based virtual lighting simulator

    SciTech Connect

    Papamichael, Konstantinos; Lai, Judy; Fuller, Daniel; Tariq, Tara

    2002-05-06

    This paper is about a web-based ''virtual lighting simulator,'' which is intended to allow architects and lighting designers to quickly assess the effect of key parameters on the daylighting and lighting performance in various space types. The virtual lighting simulator consists of a web-based interface that allows navigation through a large database of images and data, which were generated through parametric lighting simulations. At its current form, the virtual lighting simulator has two main modules, one for daylighting and one for electric lighting. The daylighting module includes images and data for a small office space, varying most key daylighting parameters, such as window size and orientation, glazing type, surface reflectance, sky conditions, time of the year, etc. The electric lighting module includes images and data for five space types (classroom, small office, large open office, warehouse and small retail), varying key lighting parameters, such as the electric lighting system, surface reflectance, dimming/switching, etc. The computed images include perspectives and plans and are displayed in various formats to support qualitative as well as quantitative assessment. The quantitative information is in the form of iso-contour lines superimposed on the images, as well as false color images and statistical information on work plane illuminance. The qualitative information includes images that are adjusted to account for the sensitivity and adaptation of the human eye. The paper also includes a section on the major technical issues and their resolution.

  13. Programmazione Web PHP -Introduzione

    E-print Network

    De Antonellis, Valeria

    Programmazione Web PHP - Introduzione 1 #12;·PHP: Hypertext Preprocessor è un linguaggio di tipizzato · consente la programmazione Object Oriented · Ed inoltre.. è Open Source Cos'è il PHP? 2Programmazione Web - PHP: introduzione #12;·Il codice PHP viene inserito in una pagina (X)HTML (sul server) ·Il

  14. The Social Web

    ERIC Educational Resources Information Center

    Richardson, Will

    2006-01-01

    This article takes a look at tech guru Will Richardson's new book, "Blogs, Wikis, Podcasts, and Other Powerful Web Tools for Classrooms." Whether it's blogs or wikis or RSS, all roads now point to a Web where little is done in isolation. The biggest, most sweeping change in the people's relationship with the Internet may not be as much the ability…

  15. SAWAN Web System

    Energy Science and Technology Software Center (ESTSC)

    2004-04-21

    A web site designed to collect and distribute environmental data from various South Asia participants regarding the quality of water in the region. The web site provides transparency to water quality analysis parameters based on locations along South Asia rivers. It facilitates open communication among players in the region.

  16. Web Team Development

    ERIC Educational Resources Information Center

    Church, Jennifer; Felker, Kyle

    2005-01-01

    The dynamic world of the Web has provided libraries with a wealth of opportunities, including new approaches to the provision of information and varied internal staffing structures. The development of self-managed Web teams, endowed with authority and resources, can create an adaptable and responsive culture within libraries. This new working team…

  17. Decoding Technology: Web Browsers

    ERIC Educational Resources Information Center

    Walker, Tim; Donohue, Chip

    2007-01-01

    More than ever, early childhood administrators are relying on the Internet for information. A key to becoming an exceptional Web "surfer" is getting to know the ins and outs of the Web browser being used. There are several options available, and almost all can be downloaded for free. However, many of the functions and features they offer are very…

  18. Web Design Matters

    ERIC Educational Resources Information Center

    Mathews, Brian

    2009-01-01

    The web site is a library's most important feature. Patrons use the web site for numerous functions, such as renewing materials, placing holds, requesting information, and accessing databases. The homepage is the place they turn to look up the hours, branch locations, policies, and events. Whether users are at work, at home, in a building, or on…

  19. Taming the Tangled Web.

    ERIC Educational Resources Information Center

    Sturgeon, Julie

    2001-01-01

    Describes the Open Knowledge Initiative (OKI) and its use as a resource for higher education institutions interested in developing web-based learning capabilities. Highlights the OKI collaborative effort and its goal to ensure that the web tools it designs are installable and supportable on smaller campuses and by smaller institutions. (GR)

  20. Web 2 Nowhere?

    ERIC Educational Resources Information Center

    Shapiro, Steven

    2012-01-01

    Web 2.0 seems to be all the rage these days. One cannot go to a library conference and attend presentations or stroll down the halls without hearing some mention of it in magical tones reserved for some great discovery. The excitement surrounding Web 2.0 reminds the author of the frenzy that gripped the country between 1848 and 1855, when…

  1. Web-based Hyper Suprime-Cam Data Providing System

    NASA Astrophysics Data System (ADS)

    Koike, M.; Furusawa, H.; Takata, T.; Price, P.; Okura, Y.; Yamada, Y.; Yamanoi, H.; Yasuda, N.; Bickerton, S.; Katayama, N.; Mineo, S.; Lupton, R.; Bosch, J.; Loomis, C.

    2014-05-01

    We describe a web-based user interface to retrieve Hyper Suprime-Cam data products, including images and. Users can access data directly from a graphical user interface or by writing a database SQL query. The system provides raw images, reduced images and stacked images (from multiple individual exposures), with previews available. Catalog queries can be executed in preview or queue mode, allowing for both exploratory and comprehensive investigations.

  2. Integrating Personal Web Data through Semantically Enhanced Web Portal

    E-print Network

    Integrating Personal Web Data through Semantically Enhanced Web Portal Lidia Rovan, Tomislav Jagust: Currently, the World Wide Web is mostly composed of isolated and loosely connected "data islands Web usage process. Creating infrastructure that would support automation of that process

  3. Automated Web Page Synthesis in Adaptive Web Systems

    E-print Network

    Ghorbani, Ali

    Automated Web Page Synthesis in Adaptive Web Systems Hossein Sadat and Ali Ghorbani Intelligent, Canada {t15h7,ghorbani}@unb.ca Abstract. An adaptive Web system adapts the Web pages to its users, based of the system. In this paper, we formalize dynamic generation of Web pages and refer to it as Web page synthesis

  4. Programmazione Web Introduzione a Javascript

    E-print Network

    De Antonellis, Valeria

    Programmazione Web Introduzione a Javascript #12;Programmazione Web - Introduzione a Javascript 2 possibile creare dinamicamente i contenuti di una pagina web e aggiungere interattività alla pagina stessa programmazione differenti!!! Javascript - Definizione #12;Programmazione Web - Introduzione a Javascript 3 Gli

  5. Silicon web process development

    NASA Technical Reports Server (NTRS)

    Duncan, C. S.; Seidensticker, R. G.; Mchugh, J. P.; Skutch, M. E.; Driggers, J. M.; Hopkins, R. H.

    1981-01-01

    The silicon web process takes advantage of natural crystallographic stabilizing forces to grow long, thin single crystal ribbons directly from liquid silicon. The ribbon, or web, is formed by the solidification of a liquid film supported by surface tension between two silicon filaments, called dendrites, which border the edges of the growing strip. The ribbon can be propagated indefinitely by replenishing the liquid silicon as it is transformed to crystal. The dendritic web process has several advantages for achieving low cost, high efficiency solar cells. These advantages are discussed.

  6. Chemistry WebBook

    National Institute of Standards and Technology Data Gateway

    SRD 69 NIST Chemistry WebBook (Web, free access)   The NIST Chemistry WebBook contains: Thermochemical data for over 7000 organic and small inorganic compounds; thermochemistry data for over 8000 reactions; IR spectra for over 16,000 compounds; mass spectra for over 33,000 compounds; UV/Vis spectra for over 1600 compounds; electronic and vibrational spectra for over 5000 compounds; constants of diatomic molecules(spectroscopic data) for over 600 compounds; ion energetics data for over 16,000 compounds; thermophysical property data for 74 fluids.

  7. Which Vertical Search Engines are Relevant? Understanding Vertical Relevance Assessments for Web Queries

    E-print Network

    Lalmas, Mounia

    , such as news, image and video, into a single interface is a popular paradigm in web search. Current approaches types of online media (e.g. images, news, video), it is becoming popular for web search engines, for example, adding image results to the ten blue links for the query "yoga poses". Retrieving and integrating

  8. Respondent Web Site Features

    Cancer.gov

    The ASA24 Respondent Web site guides the participant through the completion of a 24-hour recall for the previous day, either from midnight to midnight or for the past 24-hours, using a dynamic user interface.

  9. External Web Site Policy

    Cancer.gov

    Skip to Main Content Home   |   Data   |   Statistics   |   Tools   |   Collaborations   |   Work with Us   |   Publications   |   About   |   Links External Web Site Policy When you see this graphic notice ( ) next to a link on the Breast Cancer Surveillance

  10. External Web Site Policy

    Cancer.gov

    Skip to Main Content Search International Cancer Screening Network Sponsored by the National Cancer Institute Home | About ICSN | Collaborative Projects | Meetings | Cancer Sites | Publications | Contact Us External Web Site Policy When you see this

  11. The Web of Selagor 

    E-print Network

    Mason, Simone

    1977-01-01

    This report provides documentation about the Energy Systems Laboratory’s Emissions and Energy Calculator (eCALC), including information about the web structure, new building models, and community projects. In each of the sections a description...

  12. Web document engineering

    SciTech Connect

    White, B.

    1996-05-01

    This tutorial provides an overview of several document engineering techniques which are applicable to the authoring of World Wide Web documents. It illustrates how pre-WWW hypertext research is applicable to the development of WWW information resources.

  13. Fun With Food Webs

    ERIC Educational Resources Information Center

    Smith, Karl D.

    1977-01-01

    Explains an upper elementary game of tag that illustrates energy flow in food webs using candy bars as food sources. A follow-up field trip to a river and five language arts projects are also suggested. (CS)

  14. Web Search Engines.

    ERIC Educational Resources Information Center

    Schwartz, Candy

    1998-01-01

    Looks briefly at the history of World Wide Web search engine development and considers the current state of affairs. Reflects on future directions in terms of personalization, summarization, query expansion, coverage, and metadata. (Author/AEF)

  15. Insourcing the Web.

    ERIC Educational Resources Information Center

    Veatch, James R.

    1999-01-01

    Describes how the Nashville State Tech Library has added Internet resource links to its home page and online catalog. Highlights include original cataloging for Web sites, selection and cataloging criteria, problems encountered, and faculty attitudes and input. (LRW)

  16. Logical Foundations Semantic Web

    E-print Network

    Murawski, Andrzej

    resources, but they're not intelligent. Will a new 'semantic' web be clever enough, asks Danny Bradbury about "animals that use sonar but are not either bats or dolphins" · Locating information in data

  17. Silicon web process development

    NASA Technical Reports Server (NTRS)

    Duncan, C. S.; Seidensticker, R. G.; Mchugh, J. P.; Blais, P. D.; Davis, J. R., Jr.

    1977-01-01

    Thirty-five (35) furnace runs were carried out during this quarter, of which 25 produced a total of 120 web crystals. The two main thermal models for the dendritic growth process were completed and are being used to assist the design of the thermal geometry of the web growth apparatus. The first model, a finite element representation of the susceptor and crucible, was refined to give greater precision and resolution in the critical central region of the melt. The second thermal model, which describes the dissipation of the latent heat to generate thickness-velocity data, was completed. Dendritic web samples were fabricated into solar cells using a standard configuration and a standard process for a N(+) -P-P(+) configuration. The detailed engineering design was completed for a new dendritic web growth facility of greater width capability than previous facilities.

  18. Abstraction for web programming 

    E-print Network

    Yallop, Jeremy

    2010-01-01

    This thesis considers several instances of abstraction that arose in the design and implementation of the web programming language Links. The first concerns user interfaces, specified using HTML forms. We wish to construct ...

  19. Name:_____________________________ (Web Exercise)

    E-print Network

    Richardson, David

    Name:_____________________________ (Web Exercise) Model quality, validation exercise. You will need:_____________________________ Model quality, validation exercise (cont'd). Part 2: local comparison of 2Å and 1.25Å structures. One

  20. Web service performance script

    SciTech Connect

    2009-08-01

    This python script, available from ESRI and modified here, checks a server at specified intervals to ensure that web services remain up and running. If any are found to be off, they are automatically turned back on.

  1. Web Operational Status Boards

    Energy Science and Technology Software Center (ESTSC)

    2004-04-16

    Web Operational Status Boards (WebOSB)is a web-based application designed to acquire, display, and update highly dynamic status information between multiple users and jurisdictions. WebOSB is able to disseminate real-time status information?support the timely sharing of information?with constant, dynamic updates via personal computers and the Internet between emergency operations centers (EOCs), incident command centers, and to users outside the EOC who need to know the information (hospitals, shelters, schools). The WebOSB application far exceeds outdated information-sharingmore »methods used by emergency workers: whiteboards, Word and Excel documents, or even locality-specific Web sites. WebOSB?s capabilities include the following elements: - Secure access. Multiple users can access information on WebOSB from any personal computer with Internet access and a secure ID. Privileges are use to control access and distribution of status information and to identify users who are authorized to add or edit information. - Simultaneous update. WebOSB provides options for users to add, display, and update dynamic information simultaneously at all locations involved in the emergency management effort, A single status board can be updated from multiple locations enabling shelters and hospitals to post bed availability or list decontamination capability. - On-the-fly modification. Allowing the definition of an existing status board to be modified on-the-fly can be an asset during an emergency, where information requirements can change quickly. The status board designer feature allows an administrator to quickly define, modi,, add to, and implement new status boards in minutes without needing the help of Web designers and computer programmers. - Publisher/subscriber notification. As a subscriber, each user automatically receives notification of any new information relating to specific status boards. The publisher/subscriber feature automatically notified each user of any new information relating to specific status boards. WebOSB can be installed to fit the specific needs of an emergency management community. Because it was originally developed to concurrently support multiple EOCs at the local, county, and state level, it can also support multi-user environments for other types of projects.« less

  2. Photosynthesis Web resources.

    PubMed

    Orr, Larry; Govindjee

    2013-07-01

    Online access to the Internet and the World Wide Web has become important for public awareness and for educating the world's population, including its political leaders, students, researchers, teachers, and ordinary citizens seeking information. After a brief Introduction, relevant information found on photosynthesis-related Web sites and other online locations is presented under five categories: (a) group sites, (b) sites by subject, (c) individual researcher's sites, (d) sites for educators and students, and (e) other useful sites. PMID:23708976

  3. Using Web-Based Tools for Teaching Embryology

    EPA Science Inventory

    Computers, imaging technologies, and the worldwide web have assumed an important role in augmenting traditional learning. Resources to disseminate multimedia information across platforms, and the emergence of communal knowledge environments, facilitate the visualization of diffi...

  4. Legal Issues Involving the Operation of a University Web Site.

    ERIC Educational Resources Information Center

    Bockanic, William N.; Hogan, Patrick T.

    1999-01-01

    Discusses legal liability issues related to university Web sites, including copyright, defamation, and appropriation of images. Makes recommendations regarding domain names, intellectual-property protection, content, and security. (SK)

  5. Information Systems - Cancer Imaging Program

    Cancer.gov

    The Lung Image Database Consortium (LIDC) represents an effort by CIP grantees in a consortium to create a database of spiral CT images of the lung for use in CAD (computer-aided detection) algorithm research. The Imaging Database Resources Initiative (IDRI) is extending the efforts of the LIDC, to create a larger database of spiral CT imaging of the lung for use in CAD algorithm research. Image Archive Resources contains links to Web sites related to the interests of the NCI CIP Image Archive Committee. The Molecular Imaging and Contrast Agent Database (MICAD) is a database of research data on in vivo molecular imaging and contrast agents.

  6. Computer vision on the World Wide Web

    NASA Astrophysics Data System (ADS)

    Marshall, A. David

    1995-10-01

    The World Wide Web Initiative has provided a means for providing hypertext and multimedia based information across the whole Internet. Many applications have been developed on such http servers. One important and novel development on the World Wide Web (WWW) has been the development of computer vision and image processing related courseware facilities and indeed image processing packages. This ranges from the provision of on-line lecture notes, exercises and their solutions to more interactive packages suited primarily for teaching and demonstration packages. Within the WWW there are many pointers that highlight more research based activities. This paper addresses the issues of the implementation of the computer vision and image processing packages, the advantages gained from using a hypertext based system, and also relates the practical experiences of using the packages in a class environment. The paper addresses issues of how best to provide information in such a hypertext based system and how interactive image processing packages can be developed. A suite of multimedia based tools have been developed to facilitate such systems and these are described in the paper. A brief survey of related sources of information on the World Wide Web also is presented.

  7. Policy-Aware Content Reuse on the Web

    NASA Astrophysics Data System (ADS)

    Seneviratne, Oshani; Kagal, Lalana; Berners-Lee, Tim

    The Web allows users to share their work very effectively leading to the rapid re-use and remixing of content on the Web including text, images, and videos. Scientific research data, social networks, blogs, photo sharing sites and other such applications known collectively as the Social Web have lots of increasingly complex information. Such information from several Web pages can be very easily aggregated, mashed up and presented in other Web pages. Content generation of this nature inevitably leads to many copyright and license violations, motivating research into effective methods to detect and prevent such violations.

  8. Images and Copyright

    ERIC Educational Resources Information Center

    Webber, Nancy

    2004-01-01

    Teachers regularly download images from the Web for personal and classroom use. The original creators of these images can, but should not be, easily ignored. It may take some scrolling and clicking at the site, but finding who holds rights to works is not only considered professional etiquette, but is necessary for lawful use. In this article, the…

  9. Reviews Book: The Age of Wonder Equipment: Portoscope DVD: Around the World in 80 Images Book: Four Laws that Drive the Universe Book: Antimatter Equipment: Coffee Saver Starter Set Equipment: Graphite Levitation Kit Book: Critical Reading Video: Science Fiction-Science Fact Web Watch

    NASA Astrophysics Data System (ADS)

    2009-03-01

    WE RECOMMEND The Age of Wonder This book tells the stories of inspiring 19th-century scientists Antimatter A fast read that gives an intriguing tour of the antimatter world Science Fiction-Science Fact A video from a set of resources about the facts in science fiction WORTH A LOOK Portoscope Lightweight ×30 microscope that is easy on the purse Four Laws that Drive the Universe In just 124 pages Peter Atkins explains thermodynamics Coffee Saver Starter Kit A tool that can demonstrate the effect of reduced air pressure Graphite Levitation Kit Compact set that demonstrates diamagnetic behaviour Critical Reading A study guide on how to read scientific papers HANDLE WITH CARE Around the World in 80 Images Navigate through images from Envistat, country by country WEB WATCH This month's issue features real-time simulation program Krucible 2.0, which enables learners to run virtual experiments

  10. Factsheets Web Application

    SciTech Connect

    VIGIL,FRANK; REEDER,ROXANA G.

    2000-10-30

    The Factsheets web application was conceived out of the requirement to create, update, publish, and maintain a web site with dynamic research and development (R and D) content. Before creating the site, a requirements discovery process was done in order to accurately capture the purpose and functionality of the site. One of the high priority requirements for the site would be that no specialized training in web page authoring would be necessary. All functions of uploading, creation, and editing of factsheets needed to be accomplished by entering data directly into web form screens generated by the application. Another important requirement of the site was to allow for access to the factsheet web pages and data via the internal Sandia Restricted Network and Sandia Open Network based on the status of the input data. Important to the owners of the web site would be to allow the published factsheets to be accessible to all personnel within the department whether or not the sheets had completed the formal Review and Approval (R and A) process. Once the factsheets had gone through the formal review and approval process, they could then be published both internally and externally based on their individual publication status. An extended requirement and feature of the site would be to provide a keyword search capability to search through the factsheets. Also, since the site currently resides on both the internal and external networks, it would need to be registered with the Sandia search engines in order to allow access to the content of the site by the search engines. To date, all of the above requirements and features have been created and implemented in the Factsheet web application. These have been accomplished by the use of flat text databases, which are discussed in greater detail later in this paper.

  11. Web Prep: How to Prepare NAS Reports For Publication on the Web

    NASA Technical Reports Server (NTRS)

    Walatka, Pamela; Balakrishnan, Prithika; Clucas, Jean; McCabe, R. Kevin; Felchle, Gail; Brickell, Cristy

    1996-01-01

    This document contains specific advice and requirements for NASA Ames Code IN authors of NAS reports. Much of the information may be of interest to other authors writing for the Web. WebPrep has a graphic Table of Contents in the form of a WebToon, which simulates a discussion between a scientist and a Web publishing consultant. In the WebToon, Frequently Asked Questions about preparing reports for the Web are linked to relevant text in the body of this document. We also provide a text-only Table of Contents. The text for this document is divided into chapters: each chapter corresponds to one frame of the WebToons. The chapter topics are: converting text to HTML, converting 2D graphic images to gif, creating imagemaps and tables, converting movie and audio files to Web formats, supplying 3D interactive data, and (briefly) JAVA capabilities. The last chapter is specifically for NAS staff authors. The Glossary-Index lists web related words and links to topics covered in the main text.

  12. imaging essentials images defined,

    E-print Network

    Zhang, Yi

    imaging essentials images defined, editing strategies explained Please sign-in & take a handout (on corner of table...) imaging made easy with Beth Beighlie The Harvard Medical School is accredited, or distributing health care related goods, products or services. intro to digital images · digital images defined

  13. Using Open Web APIs in Teaching Web Mining

    ERIC Educational Resources Information Center

    Chen, Hsinchun; Li, Xin; Chau, M.; Ho, Yi-Jen; Tseng, Chunju

    2009-01-01

    With the advent of the World Wide Web, many business applications that utilize data mining and text mining techniques to extract useful business information on the Web have evolved from Web searching to Web mining. It is important for students to acquire knowledge and hands-on experience in Web mining during their education in information systems…

  14. Preprocessing and Mining Web Log Data for Web Personalization

    E-print Network

    Ruggieri, Salvatore

    Preprocessing and Mining Web Log Data for Web Personalization M. Baglioni1 , U. Ferrara2 , A. Romei/26, 56017 S. Martino Ulmiano (PI) Italy ferrara@ksolutions.it Abstract. We describe the web usage mining behaviour of a web site users. The models are inferred from the access logs of a web server by means of data

  15. The Web Changes Everything: Understanding the Dynamics of Web Content

    E-print Network

    Murphy, Robert F.

    The Web Changes Everything: Understanding the Dynamics of Web Content Eytan Adar University, USA jelsas@cs.cmu.edu ABSTRACT The Web is a dynamic, ever changing collection of information. This paper explores changes in Web content by analyzing a crawl of 55,000 Web pages, selected to represent

  16. Web Content Filtering 1 User Guidelines Web content filter guidelines

    E-print Network

    Swain, Peter

    Web Content Filtering 1 User Guidelines Web content filter guidelines Introduction The basic criterion for blocking a Web page Categories of material which will be blocked Requesting the unblocking of Aberdeen applies a Web Content Filtering service to all web pages accessed from the undergraduate network

  17. BRIDGING THE WEB OF DOCUMENTS WITH THE WEB OF DATA

    E-print Network

    Tzitzikas, Yannis

    BRIDGING THE WEB OF DOCUMENTS WITH THE WEB OF DATA AT SEARCH TIME Yannis Tzitzikas University') Exploratory Search Semantic Web and Linked Data Faceted Exploration Bridging the Web of Documents with the Web of Data (50') Possible Ways Focus on doing this at search time Case studies: presented

  18. CIS192 Python Programming Web Servers and Web APIs

    E-print Network

    Plotkin, Joshua B.

    CIS192 Python Programming Web Servers and Web APIs Eric Kutschera University of Pennsylvania March 6, 2015 Eric Kutschera (University of Pennsylvania) CIS 192 March 6, 2015 1 / 22 #12;Outline 1 Web Servers Purpose of Web Servers Flask 2 Web APIs REST Encoding and Encryption Eric Kutschera (University

  19. World Wide Web Internet and Web Information Systems

    E-print Network

    Cao, Longbing

    1 23 World Wide Web Internet and Web Information Systems ISSN 1386-145X World Wide Web DOI 10's request, provided it is not made publicly available until 12 months after publication. #12;World Wide Web worlds. Its detection is a typical use case of the broad-based Wisdom Web of Things (W2T) methodology

  20. Evaluation of Performance of Cooperative Web Caching with Web Polygraph

    E-print Network

    Subhlok, Jaspal

    Evaluation of Performance of Cooperative Web Caching with Web Polygraph Ping Du Jaspal Subhlok This paper presents a framework for evaluating the performance of cooperative Web cache hierarchies. Web Poly cache hierarchies built with Squid proxy cache servers. 1 Introduction Multiple Web caches can cooperate

  1. COWES: Clustering Web Users Based on Historical Web Sessions

    E-print Network

    Bhowmick, Sourav S.

    COWES: Clustering Web Users Based on Historical Web Sessions Ling Chen1,2 , Sourav S. Bhowmick1 Institute for Infocomm Research, Singapore, 119613 Abstract. Clustering web users is one of the most important research topics in web usage mining. Existing approaches cluster web users based on the snapshots

  2. Web authoring principles Deborah Cross, ANU Web Coordinator

    E-print Network

    Web authoring principles Deborah Cross, ANU Web Coordinator ANU Marketing Office #12;Remembering today's session · All tips available in the web style guide at styles.anu.edu.au/guide/author.php · Contact your local web manager · Contact the ANU web team via webstyle@anu.edu.au 2 #12;3 Possible

  3. OOC Web Conferencing Team Report Web Conferencing Task Team

    E-print Network

    Pittendrigh, Barry

    OOC Web Conferencing Team Report Web Conferencing Task Team Final Report ­ 1/24/2014 #12;OOC Web Conferencing Team Report 2 | P a g e Web Conferencing Task Team Final Report ­ 1/24/2014 Contents Executive..................................................................................................................................3 Growing need for web conferencing

  4. Presence of pro-tobacco messages on the Web.

    PubMed

    Hong, Traci; Cody, Michael J

    2002-01-01

    Ignored in the finalized Master Settlement Agreement (National Association of Attorneys General, 1998), the unmonitored, unregulated World Wide Web (Web) can operate as a major vehicle for delivering pro-tobacco messages, images, and products to millions of young consumers. A content analysis of 318 randomly sampled pro-tobacco Web sites revealed that tobacco has a pervasive presence on the Web, especially on e-commerce sites and sites featuring hobbies, recreation, and "fetishes." Products can be ordered online on nearly 50% of the sites, but only 23% of the sites included underage verification. Further, only 11% of these sites contain health warnings. Instead, pro-tobacco sites frequently associate smoking with "glamorous" and "alternative" lifestyles, and with images of young males and young (thin, attractive) females. Finally, many of the Web sites offered interactive site features that are potentially appealing to young Web users. Recommendations for future research and counterstrategies are discussed. PMID:12356288

  5. Guide to the Internet. The world wide web.

    PubMed Central

    Pallen, M.

    1995-01-01

    The world wide web provides a uniform, user friendly interface to the Internet. Web pages can contain text and pictures and are interconnected by hypertext links. The addresses of web pages are recorded as uniform resource locators (URLs), transmitted by hypertext transfer protocol (HTTP), and written in hypertext markup language (HTML). Programs that allow you to use the web are available for most operating systems. Powerful on line search engines make it relatively easy to find information on the web. Browsing through the web--"net surfing"--is both easy and enjoyable. Contributing to the web is not difficult, and the web opens up new possibilities for electronic publishing and electronic journals. Images p1554-a Fig 5 PMID:8520402

  6. Video Quality Assessment for Web Content Mirroring Kevin Fei, 2

    E-print Network

    Cortes, Corinna

    Video Quality Assessment for Web Content Mirroring Ye He, 1 Kevin Fei, 2 Gustavo A. Fernandez 2 and Edward J. Delp 1 1 Video and Image Processing Lab (VIPER), School of Electrical and Computer Engineering, moving web high quality video streaming content from the small screen in mobile devices to the larger TV

  7. User interfaces supporting casual data-centric interactions on the Web

    E-print Network

    Huynh, David François, 1978-

    2007-01-01

    Today's Web is full of structured data, but much of it is transmitted in natural language text or binary images that are not conducive to further machine processing by the time it reaches the user's web browser. Consequently, ...

  8. Histology on the World Wide Web: A Digest of Resources for Students and Teachers.

    ERIC Educational Resources Information Center

    Cotter, John R.

    1997-01-01

    Provides a list of 37 World Wide Web sites that are devoted to instruction in histology and include electronic manuals, syllabi, atlases, image galleries, and quizzes. Reviews the topics, content, and highlights of these Web sites. (DDR)

  9. RESTful Web service composition with

    E-print Network

    Bae, Doo-Hwan

    RESTful Web service composition with BPEL for REST Cesare Pautasso Data & Knowledge Engineering (2009) 2010-05-04 Seul-Ki Lee #12;Contents Introduction Background Design principles of RESTful Web SE LAB 2010 #12;Introduction (1/5) Web Service Describes web-based applications over the web

  10. Multimedia Authoring III: Web Authoring

    E-print Network

    Dahlquist, Kam D.

    Multimedia Authoring III: Web Authoring · Many multimedia applications today have a Web manifestation, whether it is the application itself or something about the application, like a DVD info Web site · The Web can "wrap" other types of content as well: Flash, audio, video · The Web provides technologies

  11. Scaling the Web Load Testing

    E-print Network

    Menascé, Daniel A.

    Scaling the Web Load Testing of Web Sites D evelopers typically measure a Web appli- cation on a Web site's IT infrastructure are a function of the site's expect- ed traffic. Ideally, you want, you shouldn't upgrade your Web servers if customers experience most delays in the database server

  12. Video quality assessment for web content mirroring

    NASA Astrophysics Data System (ADS)

    He, Ye; Fei, Kevin; Fernandez, Gustavo A.; Delp, Edward J.

    2014-03-01

    Due to the increasing user expectation on watching experience, moving web high quality video streaming content from the small screen in mobile devices to the larger TV screen has become popular. It is crucial to develop video quality metrics to measure the quality change for various devices or network conditions. In this paper, we propose an automated scoring system to quantify user satisfaction. We compare the quality of local videos with the videos transmitted to a TV. Four video quality metrics, namely Image Quality, Rendering Quality, Freeze Time Ratio and Rate of Freeze Events are used to measure video quality change during web content mirroring. To measure image quality and rendering quality, we compare the matched frames between the source video and the destination video using barcode tools. Freeze time ratio and rate of freeze events are measured after extracting video timestamps. Several user studies are conducted to evaluate the impact of each objective video quality metric on the subjective user watching experience.

  13. Untangling the Web.

    ERIC Educational Resources Information Center

    Green, Kenneth C.

    1996-01-01

    Advice is given and sources of information are suggested for use of the Internet and World Wide Web. Services for news, business and commerce, literary offerings, online magazines, travel, and online instruction are included. The information is intended for new users of this information technology. (MSE)

  14. DYNAMIC FOOD WEBS: MULTISPECIES

    E-print Network

    Cohen, Joel E.

    homepage (http://elsevier.com), by selecting "Customer Support" and then "Obtaining Permissions." Library FOOD WEB: STATISTICAL QUESTIONS IN ESTIMATING THE RELATIONSHIP Joel E. Cohen and Stephen R. Carpenter The quantitative patterns and mechanisms of the relationship between body mass and abundance have been examined

  15. Library Web Site Innovations.

    ERIC Educational Resources Information Center

    Falk, Howard

    1999-01-01

    Reports on some of the new ways public library sites are presenting themselves to their patrons and to the broader World Wide Web audience. Discusses library virtual tours; calendar display; audio-visual materials; resource listings; book clubs; money-raising activities; fugitive fact files; hot item advisors; periodicals; FAQs (frequently asked…

  16. Warbling on the Web.

    ERIC Educational Resources Information Center

    Donahue, Steven

    2001-01-01

    Describes the use of Web technology to create a repository for American bird songs at Northeastern Sate University (Oklahoma). Explains the use of software to translated bird songs into a sonogram, or picture, of what the sounds look like for ornithology students to better learn bird vocalizations. (LRW)

  17. Spelling and the Web

    ERIC Educational Resources Information Center

    Varnhagen, Connie K.; McFall, G. Peggy; Figueredo, Lauren; Takach, Bonnie Sadler; Daniels, Jason; Cuthbertson, Heather

    2008-01-01

    Correct spelling is increasingly important in our technological world. We examined children's and adults' Web search behavior for easy and more difficult to spell target keywords. Grade 4 children and university students searched for the life cycle of the lemming (easy to spell target keyword) or the ptarmigan (difficult to spell target keyword).…

  18. Web content incorporates user

    E-print Network

    Bove Jr., V. Michael

    Web content commonly incorporates user profile and tracking data to personalize information in response to various audience-related factors. C onsumers of Internet-mediated content increasingly expect a high degree of responsiveness in their online experiences. Responsive media sense and react usefully

  19. Experiments in Web Storytelling

    ERIC Educational Resources Information Center

    Levine, Alan

    2011-01-01

    Recognized as one of our oldest yet still vital forms of communication, storytelling offers new opportunity when it takes place on the web. Even our every day activities of writing email, creating presentations, or participating in social media can become more dynamic when considered stories. A digital storyteller from outside the museum field…

  20. Web Development Simplified

    ERIC Educational Resources Information Center

    Becker, Bernd W.

    2010-01-01

    The author has discussed the Multimedia Educational Resource for Teaching and Online Learning site, MERLOT, in a recent Electronic Roundup column. In this article, he discusses an entirely new Web page development tool that MERLOT has added for its members. The new tool is called the MERLOT Content Builder and is directly integrated into the…

  1. Spinning a Web Search.

    ERIC Educational Resources Information Center

    Lager, Mark A.

    This paper focuses on techniques for retrieval used in information sciences and in World Wide Web search engines. The purpose of reference service and information science is to provide useful information in response to a query. The two metrics of recall and precision serve to express information retrieval performance. There are two major…

  2. Spider Webs and Silks.

    ERIC Educational Resources Information Center

    Vollrath, Fritz

    1992-01-01

    Compares the attributes of the silk from spiders with those of the commercially harvested silk from silkworms. Discusses the evolution, design, and effectiveness of spider webs; the functional mechanics of the varieties of silk that can be produced by the same spider; and the composite, as well as molecular, structure of spider silk thread. (JJK)

  3. Elementary Classroom Web Sites

    ERIC Educational Resources Information Center

    Baker, Elizabeth A.

    2007-01-01

    The purpose of this study was to understand how elementary classroom Web sites support children's literacy. From a sociocultural perspective of literacy and a transformative stance toward the integration of literacy and technology, and building on explorations of new literacies, I discuss opportunities provided by the Internet that can support…

  4. Building Web Literacy Skills.

    ERIC Educational Resources Information Center

    Reinhardt, Jonathon; Isbell, Katherine

    2002-01-01

    Describes web literacy instruction developed and implemented in response to students' needs as part of an English-as-a-Foreign-Language academic skills preparation curriculum. The goals of the instruction are to introduce critical reading strategies and develop computer literacy skills. (Author/VWL)

  5. Spinning the Web

    ERIC Educational Resources Information Center

    Wiggins, Alexis

    2014-01-01

    Skills in communication and collaboration can be just as important as content knowledge and technical skills in the workplace. So what are schools doing to foster these skills? English language arts teacher Alexis Wiggins adapted the Socratic seminar model to make it student-led and collaborative. Under her new approach, the Spider Web

  6. Silicon web process development

    NASA Technical Reports Server (NTRS)

    Duncan, C. S.; Seidensticker, R. G.; Mchugh, J. P.; Hill, F. E.; Skutch, M. E.; Driggers, J. M.; Hopkins, R. H.

    1980-01-01

    A barrier crucible design which consistently maintains melt stability over long periods of time was successfully tested and used in long growth runs. The pellet feeder for melt replenishment was operated continuously for growth runs of up to 17 hours. The liquid level sensor comprising a laser/sensor system was operated, performed well, and meets the requirements for maintaining liquid level height during growth and melt replenishment. An automated feedback loop connecting the feed mechanism and the liquid level sensing system was designed and constructed and operated successfully for 3.5 hours demonstrating the feasibility of semi-automated dendritic web growth. The sensitivity of the cost of sheet, to variations in capital equipment cost and recycling dendrites was calculated and it was shown that these factors have relatively little impact on sheet cost. Dendrites from web which had gone all the way through the solar cell fabrication process, when melted and grown into web, produce crystals which show no degradation in cell efficiency. Material quality remains high and cells made from web grown at the start, during, and the end of a run from a replenished melt show comparable efficiencies.

  7. Underwater Web Work

    ERIC Educational Resources Information Center

    Wighting, Mervyn J.; Lucking, Robert A.; Christmann, Edwin P.

    2004-01-01

    Teachers search for ways to enhance oceanography units in the classroom. There are many online resources available to help one explore the mysteries of the deep. This article describes a collection of Web sites on this topic appropriate for middle level classrooms.

  8. The Dynamical Discrete Web

    E-print Network

    L. R. G. Fontes; C. M. Newman; K. Ravishankar; E. Schertzer

    2007-04-20

    The dynamical discrete web (DDW), introduced in recent work of Howitt and Warren, is a system of coalescing simple symmetric one-dimensional random walks which evolve in an extra continuous dynamical parameter s. The evolution is by independent updating of the underlying Bernoulli variables indexed by discrete space-time that define the discrete web at any fixed s. In this paper, we study the existence of exceptional (random) values of s where the paths of the web do not behave like usual random walks and the Hausdorff dimension of the set of such exceptional s. Our results are motivated by those about exceptional times for dynamical percolation in high dimension by H\\"aggstrom, Peres and Steif, and in dimension two by Schramm and Steif. The exceptional behavior of the walks in DDW is rather different from the situation for dynamical random walks of Benjamini, H\\"aggstrom, Peres and Steif. In particular, we prove that there are exceptional values of s for which the walk from the origin S^s(n) has limsup S^s(n)/\\sqrt n \\leq K with a nontrivial dependence of the Hausdorff dimension on K. We also discuss how these and other results extend to the dynamical Brownian web, a natural scaling limit of DDW. The scaling limit is the focus of a paper in preparation; it was studied by Howitt and Warren and is related to the Brownian net of Sun and Swart.

  9. Semantic Analysis of Web Site Audience by Integrating Web Usage Mining and Web

    E-print Network

    Libre de Bruxelles, Université

    Semantic Analysis of Web Site Audience by Integrating Web Usage Mining and Web Content Mining Jean of Computer and Network Engineering, CP165/15 Avenue F.D. Roosevelt, 50 1050 Brussels, Belgium 2 European output by the Web server. Then, for a given taxonomy covering the Web site knwoledge domain, we aggregate

  10. Internal Carotid Artery Web: Doppler Ultrasound with CT Angiography correlation

    PubMed Central

    Fu, Winnie; Crockett, Ann; Low, Gavin; Patel, Vimal

    2015-01-01

    We present a case of an internal carotid web, detected on duplex ultrasound and confirmed by CT angiography. To our knowledge, this is only the third reported ultrasound case in the imaging literature. This vascular abnormality can cause a clinically significant carotid stenosis and is a risk factor for recurrent embolic cerebrovascular events. Due to small size and poor awareness among radiologists, carotid webs are often under-diagnosed on non-invasive imaging modalities. Improved awareness including knowledge of salient imaging features is useful as early diagnosis leading to appropriate intervention can eliminate the risk of future cerebrovascular events.

  11. Web Page-level Queue Scheduling

    E-print Network

    Chiba, Shigeru

    -level Queue Scheduling Web Web Web 1 Web (HTML) Servlet JSP Web Page-level Queue Scheduling Servlet Java API Servlet 2 Web 3 4 5 6 7 2 Web Web Web CGI ­1­ #12;J2EE Web Web Web CPU Web I/O bound CPU I/O 1 50 1 0 1000 Scheduling Page-level Queue Scheduling Web 4 ­3­ #12;( ) 4 Page-level Queue Scheduling Java Servlet Java API

  12. Developpement Web -JSP + EL Developpement Web -JSP + EL

    E-print Network

    Richer, Jean-Michel

    D´eveloppement Web - JSP + EL D´eveloppement Web - JSP + EL Jean-Michel Richer jean - JSP + EL Plan Plan 1 Pr´eambule 2 Rappel concernant les JavaBeans 3 Mise en pratique 4 Bibliographie 2 / 32 #12;D´eveloppement Web - JSP + EL Pr´eambule Pr´eambule Pr´eambule 3 / 32 #12;D´eveloppement Web

  13. Pace Web Server: A Pure Java Web Server

    E-print Network

    Tao, Lixin

    Pace Web Server: A Pure Java Web Server with a Servlet Container by Priya Srinivasaraghavan University 2003 #12;Abstract Pace Web Server: A Pure Java Web Server with a Servlet Container by Priya advanced technologies like Servlets, JavaServer Pages and Active Server Pages, as well as support

  14. Efficient Materialization of Dynamic Web Data to Improve Web Performance

    E-print Network

    Efficient Materialization of Dynamic Web Data to Improve Web Performance Christos Bouras, Agisilaos of performance, response efficiency and data consistency are among the most important ones for data intensive Web a materialization policy that may be applied to data intensive Web sites. Our research relies on the performance

  15. A Framework for Migrating Web Applications to Web Services

    E-print Network

    Cordy, James R.

    A Framework for Migrating Web Applications to Web Services Asil A. Almonaies, Manar H. Alalfi-automatically migrat- ing monolithic legacy web applications to service oriented architecture (SOA) by separating potentially reusable features as web services. Software design re- covery and source transformation techniques

  16. The Semantic Web: Collective Intelligence on the Web

    E-print Network

    Staab, Steffen

    The Semantic Web: Collective Intelligence on the Web Maciej Janik, Ansgar Scherp, and Steffen Staab lastname@uni-koblenz.de Institute for Web Science and Technologies, WeST University of Koblenz-Landau Abstract. The World Wide Web has turned hypertext into a success story by enabling world-wide sharing

  17. 44 WEB ECOLOGY 9, 2009 Web Ecology 9: 4453.

    E-print Network

    Rey Benayas, José María

    44 WEB ECOLOGY 9, 2009 Web Ecology 9: 44­53. Accepted 13 May 2009 Copyright © EEF ISSN 1399 agricultural landscape on local bird communities. ­ Web Ecol. 9: 44­53. This study assesses whether Alcalá de Henares, Spain. #12;45WEB ECOLOGY 9, 2009 multifunctional systems are common in southern Europe

  18. Intelligent and Adaptive Crawling of Web Applications for Web Archiving

    E-print Network

    Senellart, Pierre

    Intelligent and Adaptive Crawling of Web Applications for Web Archiving Muhammad Faheem1 and Pierre Kong, Hong Kong firstname.lastname@telecom.paristech.fr Abstract. Web sites are dynamic in nature with content and structure changing overtime. Many pages on the Web are produced by content management systems

  19. the Web Ontologybased Community Web Portals Steffen Staab

    E-print Network

    Staab, Steffen

    the Web Ontology­based Community Web Portals Steffen Staab J urgen Angele b , Stefan Decker of World Wide Web virtually everyone a computer contribute high­value information challenge to able information found. Search machines with task, ultimately provide appropriatly struc­ tured views onto web

  20. Towards an Accessible Web through Semantic Web Standards

    E-print Network

    Watt, Stephen M.

    1 Towards an Accessible Web through Semantic Web Standards Clare M. So, Mark Perry and Stephen M Abstract-- Making information on the Web accessible to all people, including to those having special needs than actual semantic content that is rendered by alternative technologies. To make the Web more

  1. Web Projections: Learning from Contextual Subgraphs of the Web

    E-print Network

    Horvitz, Eric

    Web Projections: Learning from Contextual Subgraphs of the Web Jure Leskovec Carnegie Mellon among web pages have been lever- aged as sources of information in methods for ranking search results. To date, specific graphical properties have been used in these analyses. We introduce web projections

  2. Towards the Web of Things: Web Mashups for Embedded Devices

    E-print Network

    Towards the Web of Things: Web Mashups for Embedded Devices Dominique Guinard Institute custom solutions, thus requires ex- tensive time and technical expertise. Based on the success of Web 2.0 mashup applications, we propose a similar ap- proach for integrating real-world devices to the Web, allow

  3. Towards an Accessible Web through Semantic Web Standards

    E-print Network

    Perry, Mark

    Towards an Accessible Web through Semantic Web Standards Clare M. So, Mark Perry and Stephen M Abstract-- Making information on the Web accessible to all people, including to those having special needs than actual semantic content that is rendered by alternative technologies. To make the Web more

  4. Web Services Based Architecture in Computational Web Portals

    E-print Network

    Web Services Based Architecture in Computational Web Portals By Choonhan Youn B.S. The University___________________________________ #12;Abstract Computational web portals provide user environments that simplify access and integrate. The computational web portal, Gateway, consists of a dynamically generated and browser-based user interface

  5. NDBC Web Data Guide NDBC Web Data Guide

    E-print Network

    NDBC Web Data Guide NDBC Web Data Guide National Data Buoy Center (NDBC) Stennis Space Center, Mississippi 39529-6000 October 2015 #12;NDBC Web Data Guide Table of Contents 1. General Guidance.ndbc.noaa.gov/data .......................................................................B-1 #12;NDBC Web Data Guide Version 1.0 1 1. General Guidance This document provides a high level

  6. Cleaning Web Pages for Effective Web Content Mining

    E-print Network

    Ezeife, Christie

    Cleaning Web Pages for Effective Web Content Mining Jing Li and C.I. Ezeife School of Computer://www.cs.uwindsor.ca/cezeife Abstract. Classifying and mining noise-free web pages will improve on accuracy of search results as well as search speed, and may benefit web- page organization applications (e.g., keyword-based search engines

  7. Quantum computational webs

    E-print Network

    D. Gross; J. Eisert

    2010-05-01

    We introduce the notion of quantum computational webs: These are quantum states universal for measurement-based computation which can be built up from a collection of simple primitives. The primitive elements - reminiscent of building blocks in a construction kit - are (i) states on a one-dimensional chain of systems ("computational quantum wires") with the power to process one logical qubit and (ii) suitable couplings which connect the wires to a computationally universal "web". All elements are preparable by nearest-neighbor interactions in a single pass - a type of operation well-suited for a number of physical architectures. We provide a complete classification of qubit wires. This is first instance where a physically well-motivated class of universal resources can be fully understood. Finally, we sketch possible realizations in superlattices, and explore the power of coupling mechanisms based on Ising or exchange-interactions.

  8. Web Resources for Pharmacogenomics

    PubMed Central

    Zhang, Guoqing; Zhang, Yunsheng; Ling, Yunchao; Jia, Jia

    2015-01-01

    Pharmacogenomics is the study of the impact of genetic variations or genotypes of individuals on their drug response or drug metabolism. Compared to traditional genomics research, pharmacogenomic research is more closely related to clinical practice. Pharmacogenomic discoveries may effectively assist clinicians and healthcare providers in determining the right drugs and proper dose for each patient, which can help avoid side effects or adverse reactions, and improve the drug therapy. Currently, pharmacogenomic approaches have proven their utility when it comes to the use of cardiovascular drugs, antineoplastic drugs, aromatase inhibitors, and agents used for infectious diseases. The rapid innovation in sequencing technology and genome-wide association studies has led to the development of numerous data resources and dramatically changed the landscape of pharmacogenomic research. Here we describe some of these web resources along with their names, web links, main contents, and our ratings. PMID:25703229

  9. Silicon dendritic web material

    NASA Technical Reports Server (NTRS)

    Meier, D. L.; Campbell, R. B.; Sienkiewicz, L. J.; Rai-Choudhury, P.

    1982-01-01

    The development of a low cost and reliable contact system for solar cells and the fabrication of several solar cell modules using ultrasonic bonding for the interconnection of cells and ethylene vinyl acetate as the potting material for module encapsulation are examined. The cells in the modules were made from dendritic web silicon. To reduce cost, the electroplated layer of silver was replaced with an electroplated layer of copper. The modules that were fabricated used the evaporated Ti, Pd, Ag and electroplated Cu (TiPdAg/Cu) system. Adherence of Ni to Si is improved if a nickel silicide can be formed by heat treatment. The effectiveness of Ni as a diffusion barrier to Cu and the ease with which nickel silicide is formed is discussed. The fabrication of three modules using dendritic web silicon and employing ultrasonic bonding for interconnecting calls and ethylene vinyl acetate as the potting material is examined.

  10. The Curvaton Web

    E-print Network

    Andrei Linde; Viatcheslav Mukhanov

    2006-03-13

    We discuss nontrivial features of the large scale structure of the universe in the simplest curvaton model proposed in our paper astro-ph/9610219. The amplitude of metric perturbations in this model takes different values in different parts of the universe. The spatial distribution of the amplitude looks like a web consisting of exponentially large cells. Depending on the relation between the cell size l_0 and the scale of the horizon l_H, one may either live in a part of the universe dominated by gaussian perturbations (inside a cell with l_0 >> l_H), or in the universe dominated by nongaussian perturbations (for l_0 web and anthropic considerations in the string theory landscape.

  11. WebLogo

    Energy Science and Technology Software Center (ESTSC)

    2003-01-08

    WebLogo is a web based application designed to make the generation of sequence logos as easy and painless as possible. Sequesnce logos are a graphical representation of an amino acid or nucleic acid multiple sequence alignment developed by Tom Schneider and Mike Stephens. Each logo consists of stacks of symbols, one stack for each position in the sequence. The overall height of the stack indicates the sequence conservation at that position, while the height ofmore »symbols within the stack indicates the relative frequency of each amino or nucleic acid at that position. In general, a sequence logo provides a richer and more precise description of, for example, a binding site, than would a consensus sequence.« less

  12. NHANES Analysis Web Tutorials

    Cancer.gov

    Data from the National Health and Nutrition Examination Survey (NHANES) have provided unique opportunities to study major nutrition, infection, environmental, and chronic health conditions in the US. The National Center for Health Statistics (NCHS) makes NHANES datasets publicly available on its Web site. However, all NHANES users face similar challenges because of the complexity of NHANES' survey design and vast amount of information available in NHANES data.

  13. Web Cube: a Programming Model for Reliable Web Applications

    E-print Network

    Utrecht, Universiteit

    Web Cube: a Programming Model for Reliable Web Applications I.S.W.B. Prasetya, T.E.J. Vos, S UU-CS-2005-002 www.cs.uu.nl #12;Web Cube: a Programming Model for Reliable Web Applications I@cs.uu.nl, tanja@iti.upv.es, doaitse@cs.uu.nl, bela@cs.ui.ac.id Abstract Web Cube is a server side programming

  14. Scaling the Web in Designing

    E-print Network

    Menascé, Daniel A.

    Scaling the Web Trade-offs in Designing Web Clusters 76 SEPTEMBER · OCTOBER 2002 http://computer.org/internet/ 1089-7801/02/$17.00 ©2002 IEEE IEEE INTERNET COMPUTING H igh-volume Web sites often use clusters approaches to scaling Web clusters: adding more servers of the same type (scaling out, or horizontally

  15. Web Writing (Updated July 2015)

    E-print Network

    Shutler, Dave

    Web Writing Guide (Updated July 2015) #12;Introduction. 3 Our campus website Top three tips for web trustees Writing Well for the Web. 4 Understand your audience. Make text easy to scan. Cut your content. Write accessible link phrases. Write short headlines. Maintain your web content. This Guide is produced

  16. Web Interactions A Dissertation Presented

    E-print Network

    Strickland, Stevie

    Web Interactions A Dissertation Presented by Paul Thorsen Graunke to The College of Computer Thorsen Graunke ALL RIGHTS RESERVED #12; ii Web Interactions by Paul Thorsen Graunke ABSTRACT that exhibit the same exibility as Web dialogues. A foundational model of Web interactions pro- vides

  17. The Web Graph Anthony Bonato

    E-print Network

    Bonato, Anthony

    The Web Graph Anthony Bonato Ryerson University Mathematics Graduate Seminar October 29, 2008 #12;Introducing the Web Graph - Anthony Bonato 2 Graph theory ­ the last century #12;Introducing the Web Graph - Anthony Bonato 3 Today... #12;Introducing the Web Graph - Anthony Bonato 4 · a graph G = (V(G),E(G)) = (V

  18. WebViz: A web browser based application for collaborative analysis of 3D data

    NASA Astrophysics Data System (ADS)

    Ruegg, C. S.

    2011-12-01

    In the age of high speed Internet where people can interact instantly, scientific tools have lacked technology which can incorporate this concept of communication using the web. To solve this issue a web application for geological studies has been created, tentatively titled WebViz. This web application utilizes tools provided by Google Web Toolkit to create an AJAX web application capable of features found in non web based software. Using these tools, a web application can be created to act as piece of software from anywhere in the globe with a reasonably speedy Internet connection. An application of this technology can be seen with data regarding the recent tsunami from the major japan earthquakes. After constructing the appropriate data to fit a computer render software called HVR, WebViz can request images of the tsunami data and display it to anyone who has access to the application. This convenience alone makes WebViz a viable solution, but the option to interact with this data with others around the world causes WebViz to be taken as a serious computational tool. WebViz also can be used on any javascript enabled browser such as those found on modern tablets and smart phones over a fast wireless connection. Due to the fact that WebViz's current state is built using Google Web Toolkit the portability of the application is in it's most efficient form. Though many developers have been involved with the project, each person has contributed to increase the usability and speed of the application. In the project's most recent form a dramatic speed increase has been designed as well as a more efficient user interface. The speed increase has been informally noticed in recent uses of the application in China and Australia with the hosting server being located at the University of Minnesota. The user interface has been improved to not only look better but the functionality has been improved. Major functions of the application are rotating the 3D object using buttons. These buttons have been replaced with a new layout that is easier to understand the function and is also easy to use with mobile devices. With these new changes, WebViz is easier to control and use for general use.

  19. Web party effect: a cocktail party effect in the web environment

    PubMed Central

    Gerbino, Walter

    2015-01-01

    In goal-directed web navigation, labels compete for selection: this process often involves knowledge integration and requires selective attention to manage the dizziness of web layouts. Here we ask whether the competition for selection depends on all web navigation options or only on those options that are more likely to be useful for information seeking, and provide evidence in favor of the latter alternative. Participants in our experiment navigated a representative set of real websites of variable complexity, in order to reach an information goal located two clicks away from the starting home page. The time needed to reach the goal was accounted for by a novel measure of home page complexity based on a part of (not all) web options: the number of links embedded within web navigation elements weighted by the number and type of embedding elements. Our measure fully mediated the effect of several standard complexity metrics (the overall number of links, words, images, graphical regions, the JPEG file size of home page screenshots) on information seeking time and usability ratings. Furthermore, it predicted the cognitive demand of web navigation, as revealed by the duration judgment ratio (i.e., the ratio of subjective to objective duration of information search). Results demonstrate that focusing on relevant links while ignoring other web objects optimizes the deployment of attentional resources necessary to navigation. This is in line with a web party effect (i.e., a cocktail party effect in the web environment): users tune into web elements that are relevant for the achievement of their navigation goals and tune out all others. PMID:25802803

  20. Web party effect: a cocktail party effect in the web environment.

    PubMed

    Rigutti, Sara; Fantoni, Carlo; Gerbino, Walter

    2015-01-01

    In goal-directed web navigation, labels compete for selection: this process often involves knowledge integration and requires selective attention to manage the dizziness of web layouts. Here we ask whether the competition for selection depends on all web navigation options or only on those options that are more likely to be useful for information seeking, and provide evidence in favor of the latter alternative. Participants in our experiment navigated a representative set of real websites of variable complexity, in order to reach an information goal located two clicks away from the starting home page. The time needed to reach the goal was accounted for by a novel measure of home page complexity based on a part of (not all) web options: the number of links embedded within web navigation elements weighted by the number and type of embedding elements. Our measure fully mediated the effect of several standard complexity metrics (the overall number of links, words, images, graphical regions, the JPEG file size of home page screenshots) on information seeking time and usability ratings. Furthermore, it predicted the cognitive demand of web navigation, as revealed by the duration judgment ratio (i.e., the ratio of subjective to objective duration of information search). Results demonstrate that focusing on relevant links while ignoring other web objects optimizes the deployment of attentional resources necessary to navigation. This is in line with a web party effect (i.e., a cocktail party effect in the web environment): users tune into web elements that are relevant for the achievement of their navigation goals and tune out all others. PMID:25802803

  1. WEB SEARCH TECHNOLOGIES FOR TEXT DOCUMENTS

    E-print Network

    Meng, Weiyi

    , and metasearch engines. Key Words: search engine, Web, Surface Web, Deep Web, Web crawler, text retrieval, Vector and the Deep Web (or Hidden Web) (Bergman 2000). The former refers to the collection of web pages) it has more than 45 billion web pages according to www.worldwidewebsize.com. The Deep Web contains web

  2. Teaching Tectonics to Undergraduates with Web GIS

    NASA Astrophysics Data System (ADS)

    Anastasio, D. J.; Bodzin, A.; Sahagian, D. L.; Rutzmoser, S.

    2013-12-01

    Geospatial reasoning skills provide a means for manipulating, interpreting, and explaining structured information and are involved in higher-order cognitive processes that include problem solving and decision-making. Appropriately designed tools, technologies, and curriculum can support spatial learning. We present Web-based visualization and analysis tools developed with Javascript APIs to enhance tectonic curricula while promoting geospatial thinking and scientific inquiry. The Web GIS interface integrates graphics, multimedia, and animations that allow users to explore and discover geospatial patterns that are not easily recognized. Features include a swipe tool that enables users to see underneath layers, query tools useful in exploration of earthquake and volcano data sets, a subduction and elevation profile tool which facilitates visualization between map and cross-sectional views, drafting tools, a location function, and interactive image dragging functionality on the Web GIS. The Web GIS platform is independent and can be implemented on tablets or computers. The GIS tool set enables learners to view, manipulate, and analyze rich data sets from local to global scales, including such data as geology, population, heat flow, land cover, seismic hazards, fault zones, continental boundaries, and elevation using two- and three- dimensional visualization and analytical software. Coverages which allow users to explore plate boundaries and global heat flow processes aided learning in a Lehigh University Earth and environmental science Structural Geology and Tectonics class and are freely available on the Web.

  3. Web worlds, web-colouring matrices, and web-mixing matrices

    E-print Network

    Mark Dukes; Einan Gardi; Einar Steingrimsson; Chris D. White

    2013-01-28

    We introduce a new combinatorial object called a web world that consists of a set of web diagrams. The diagrams of a web world are generalizations of graphs, and each is built on the same underlying graph. Instead of ordinary vertices the diagrams have pegs, and edges incident to a peg have different heights on the peg. The web world of a web diagram is the set of all web diagrams that result from permuting the order in which endpoints of edges appear on a peg. The motivation comes from particle physics, where web diagrams arise as particular types of Feynman diagrams describing scattering amplitudes in non-Abelian gauge (Yang-Mills) theories. To each web world we associate two matrices called the web-colouring matrix and web-mixing matrix. The entries of these matrices are indexed by ordered pairs of web diagrams (D_1,D_2), and are computed from those colourings of the edges of D_1 that yield D_2 under a transformation determined by each colouring. We show that colourings of a web diagram (whose constituent indecomposable diagrams are all unique) that lead to a reconstruction of the diagram are equivalent to order-preserving mappings of certain partially ordered sets (posets) that may be constructed from the web diagrams. For web worlds whose web graphs have all edge labels equal to 1, the diagonal entries of web-mixing and web-colouring matrices are obtained by summing certain polynomials determined by the descents in permutations in the Jordan-Holder set of all linear extensions of the associated poset. We derive tri-variate generating generating functions for the number of web worlds according to three statistics and enumerate the number of different web diagrams in a web world. Three special web worlds are examined in great detail, and the traces of the web-mixing matrices calculated in each case.

  4. Genetic toxicology: web resources.

    PubMed

    Young, Robert R

    2002-04-25

    Genetic toxicology is the scientific discipline dealing with the effects of chemical, physical and biological agents on the heredity of living organisms. The Internet offers a wide range of online digital resources for the field of Genetic Toxicology. The history of genetic toxicology and electronic data collections are reviewed. Web-based resources at US National Library of Medicine (NLM), including MEDLINE, PUBMED, Gateway, Entrez, and TOXNET, are discussed. Search strategies and Medical Subject Headings (MeSH) are reviewed in the context of genetic toxicology. The TOXNET group of databases are discussed with emphasis on those databases with genetic toxicology content including GENE-TOX, TOXLINE, Hazardous Substances Data Bank, Integrated Risk Information System, and Chemical Carcinogenesis Research Information System. Location of chemical information including chemical structure and linkage to health and regulatory information using CHEMIDPLUS at NLM and other databases is reviewed. Various government agencies have active genetic toxicology research programs or use genetic toxicology data to assist fulfilling the agency's mission. Online resources at the US Food and Drug Administration (FDA), the US Environmental Protection Agency (EPA), the National Institutes of Environmental Health Sciences, and the National Toxicology Program (NTP) are outlined. Much of the genetic toxicology for pharmaceuticals, industrial chemicals and pesticides that is performed in the world is regulatory-driven. Regulatory web resources are presented for the laws mandating testing, guidelines on study design, Good Laboratory Practice (GLP) regulations, and requirements for electronic data collection and reporting. The Internet provides a range of other supporting resources to the field of genetic toxicology. The web links for key professional societies and journals in genetic toxicology are listed. Distance education, educational media resources, and job placement services are also available online in the field of genetic toxicology. As molecular biology and computational tools improve, new areas within genetic toxicology such as structural activity relationship analysis, mutational spectra databases and toxicogenomics, now have resources online as well. PMID:11955688

  5. Inflation in a web

    SciTech Connect

    Li Sheng; Piao Yunsong; Liu Yang

    2009-12-15

    In a given path with multiple branches, in principle, it can be expected that there are some fork points, where one branch is bifurcated into different branches, or various branches converge into one or several branches. In this paper, it is shown that if there is a web formed by such branches in a given field space, in which each branch can be responsible for a period of slow roll inflation, a multiverse separated by a domain wall network will come into being, some of which might correspond to our observable universe. We discuss this scenario and show possible observations of a given observer at late time.

  6. Inflation in a Web

    E-print Network

    Sheng Li; Yang Liu; Yun-Song Piao

    2009-11-26

    In a given path with multiple branches, in principle, it can be expected that there are some fork points, where one branch is bifurcated into different branches, or various branches converge into one or several branches. In this paper, it is showed that if there is a web formed by such branches in a given field space, in which each branch can be responsible for a period of slow roll inflation, a multiverse separated by domain wall network will come into being, some of which might corresponds to our observable universe. We discuss this scenario and show possible observations of a given observer at late time.

  7. AIRSAR Web-Based Data Processing

    NASA Technical Reports Server (NTRS)

    Chu, Anhua; Van Zyl, Jakob; Kim, Yunjin; Hensley, Scott; Lou, Yunling; Madsen, Soren; Chapman, Bruce; Imel, David; Durden, Stephen; Tung, Wayne

    2007-01-01

    The AIRSAR automated, Web-based data processing and distribution system is an integrated, end-to-end synthetic aperture radar (SAR) processing system. Designed to function under limited resources and rigorous demands, AIRSAR eliminates operational errors and provides for paperless archiving. Also, it provides a yearly tune-up of the processor on flight missions, as well as quality assurance with new radar modes and anomalous data compensation. The software fully integrates a Web-based SAR data-user request subsystem, a data processing system to automatically generate co-registered multi-frequency images from both polarimetric and interferometric data collection modes in 80/40/20 MHz bandwidth, an automated verification quality assurance subsystem, and an automatic data distribution system for use in the remote-sensor community. Features include Survey Automation Processing in which the software can automatically generate a quick-look image from an entire 90-GB SAR raw data 32-MB/s tape overnight without operator intervention. Also, the software allows product ordering and distribution via a Web-based user request system. To make AIRSAR more user friendly, it has been designed to let users search by entering the desired mission flight line (Missions Searching), or to search for any mission flight line by entering the desired latitude and longitude (Map Searching). For precision image automation processing, the software generates the products according to each data processing request stored in the database via a Queue management system. Users are able to have automatic generation of coregistered multi-frequency images as the software generates polarimetric and/or interferometric SAR data processing in ground and/or slant projection according to user processing requests for one of the 12 radar modes.

  8. A Literature Review on Image Encryption Techniques

    NASA Astrophysics Data System (ADS)

    Khan, Majid; Shah, Tariq

    2014-12-01

    Image encryption plays a paramount part to guarantee classified transmission and capacity of image over web. Then again, a real-time image encryption confronts a more noteworthy test because of vast measure of information included. This paper exhibits an audit on image encryption in spatial, frequency and hybrid domains with both full encryption and selective encryption strategy.

  9. FPA Depot - Web Application

    NASA Technical Reports Server (NTRS)

    Avila, Edwin M. Martinez; Muniz, Ricardo; Szafran, Jamie; Dalton, Adam

    2011-01-01

    Lines of code (LOC) analysis is one of the methods used to measure programmer productivity and estimate schedules of programming projects. The Launch Control System (LCS) had previously used this method to estimate the amount of work and to plan development efforts. The disadvantage of using LOC as a measure of effort is that one can only measure 30% to 35% of the total effort of software projects involves coding [8]. In the application, instead of using the LOC we are using function point for a better estimation of hours in each software to develop. Because of these disadvantages, Jamie Szafran of the System Software Branch of Control And Data Systems (NE-C3) at Kennedy Space Canter developed a web application called Function Point Analysis (FPA) Depot. The objective of this web application is that the LCS software architecture team can use the data to more accurately estimate the effort required to implement customer requirements. This paper describes the evolution of the domain model used for function point analysis as project managers continually strive to generate more accurate estimates.

  10. Tele diagnostic by web

    NASA Astrophysics Data System (ADS)

    Sugiyama, Shigeki

    2006-03-01

    Because of the development of multimedia technologies like Web and Internet, it now becomes possible to think about Tele Medicine and Tele Diagnostic for a distant place where no doctors and no nurses are situated at or are available. And also some kind of intelligence can be added onto them, which makes possible to give certain kind of medical treatment assistance or suggestions for a patient from a computer diagnostic base through the Internetworking. For doing this, here considers about a basic system of "Tele Diagnostic for a remote place" where it dose not have a doctor and a medical assistance. In order to implement the system, JAVA, VRML, HTML, and CORTONA are used as a basic language and a viewer. And also in order to add a kind of intelligence, Augmented Knowledge In Agent (AKIA) by using Back Propagation Neural Networks (BPNN) is used. And by this study, here can introduce the system that has the following basic mechanisms; By inputting physical data like temperature or blood pressure, the system would show a diagnostic assistance by TEXT. And also the bad place of body would be shown graphically if there were any. The system can be put onto Web, so that anybody could have this assistance at any place ubiquitously only if a person has Internetworking access.

  11. Chameleon: A Color-Adap0ve Web Browser for Mobile OLED Displays

    E-print Network

    Zhong, Lin

    Chameleon: A Color-Adap0ve Web Browser for Mobile OLED Displays Mian Dong months) #12;Web Design solves the! problem?! Non-Mobile! Mobile! OLED-! Friendly! #12;2 Treat GUI Objects and Images Differently! #12;GUI Objects vs. Images! #12;Color Transformation of GUI

  12. Observing Iceland's Eyjafjallajkull 2010 eruptions with the autonomous NASA Volcano Sensor Web

    E-print Network

    Wright, Robert

    Observing Iceland's Eyjafjallajökull 2010 eruptions with the autonomous NASA Volcano Sensor Web, the Hyperion hyperspectral imager and Advanced Land Imager (ALI) on NASA's Earth Observing 1 (EO-1) spacecraft by using the autonomously operating NASA Volcano Sensor Web (VSW). The VSW incorporates notifications

  13. GIF versus JPEG: Choosing a Graphics Compression Format for Web Publications.

    ERIC Educational Resources Information Center

    Nicholson, Scott

    1998-01-01

    Explains GIF and JPEG formats for computer graphics to help Web page creators make an informed decision when selecting a format for each graphic in a Web publication. Highlights include compressing and decompressing computer images; image quality, including color; special features, including animation; and file size. (Author/LRW)

  14. Development of Kevlar parachute webbings

    SciTech Connect

    Ericksen, R.H.

    1991-01-01

    This paper describes the development of Kevlar webbings for parachute applications. Evaluation of existing webbings and a study of the effects of filling yarn denier and pick count on tensile and joint strength provided data for fabric design. Measurements of warp crimp as a function of filling denier and pick count demonstrated the relationship between warp crimp and strength. One newly developed webbing had higher strength efficiency and another had higher joint efficiency than comparable existing webbings. Both new webbings had overall efficiencies over 5% higher than values for existing webbings. 10 refs., 4 figs., 2 tabs.

  15. Dynamic Web Pages: Performance Impact on Web Servers.

    ERIC Educational Resources Information Center

    Kothari, Bhupesh; Claypool, Mark

    2001-01-01

    Discussion of Web servers and requests for dynamic pages focuses on experimentally measuring and analyzing the performance of the three dynamic Web page generation technologies: CGI, FastCGI, and Servlets. Develops a multivariate linear regression model and predicts Web server performance under some typical dynamic requests. (Author/LRW)

  16. Designing Effective Web Forms for Older Web Users

    ERIC Educational Resources Information Center

    Li, Hui; Rau, Pei-Luen Patrick; Fujimura, Kaori; Gao, Qin; Wang, Lin

    2012-01-01

    This research aims to provide insight for web form design for older users. The effects of task complexity and information structure of web forms on older users' performance were examined. Forty-eight older participants with abundant computer and web experience were recruited. The results showed significant differences in task time and error rate…

  17. MasteringWeb Services Security MasteringWeb Services Security

    E-print Network

    for ASP.NET Web Services Planning and building secure Web Service systems ­ Architectural and policy to secure today ­ simple WS systems Java and (ASP).NET ­ complex WS systems for large enterprises Describe+, .NET, EJB Securing (ASP).NET and Java Web Services 3. Advanced Topics Interoperability Administration

  18. APPRIS WebServer and WebServices

    PubMed Central

    Rodriguez, Jose Manuel; Carro, Angel; Valencia, Alfonso; Tress, Michael L.

    2015-01-01

    This paper introduces the APPRIS WebServer (http://appris.bioinfo.cnio.es) and WebServices (http://apprisws.bioinfo.cnio.es). Both the web servers and the web services are based around the APPRIS Database, a database that presently houses annotations of splice isoforms for five different vertebrate genomes. The APPRIS WebServer and WebServices provide access to the computational methods implemented in the APPRIS Database, while the APPRIS WebServices also allows retrieval of the annotations. The APPRIS WebServer and WebServices annotate splice isoforms with protein structural and functional features, and with data from cross-species alignments. In addition they can use the annotations of structure, function and conservation to select a single reference isoform for each protein-coding gene (the principal protein isoform). APPRIS principal isoforms have been shown to agree overwhelmingly with the main protein isoform detected in proteomics experiments. The APPRIS WebServer allows for the annotation of splice isoforms for individual genes, and provides a range of visual representations and tools to allow researchers to identify the likely effect of splicing events. The APPRIS WebServices permit users to generate annotations automatically in high throughput mode and to interrogate the annotations in the APPRIS Database. The APPRIS WebServices have been implemented using REST architecture to be flexible, modular and automatic. PMID:25990727

  19. Restructuring Web Site Design: An Alternative to WebTeams.

    ERIC Educational Resources Information Center

    Davis, Marc; Boyer, Janice

    In July 1997, the University Library at the University of Nebraska at Omaha adopted a new structural model for Web site development--the publishing metaphor. Rather than relying on an individual expert (the Webmaster) or a WebTeam comprised of a few individuals, the model permits everyone in the organization, regardless of position or Web

  20. APPRIS WebServer and WebServices.

    PubMed

    Rodriguez, Jose Manuel; Carro, Angel; Valencia, Alfonso; Tress, Michael L

    2015-07-01

    This paper introduces the APPRIS WebServer (http://appris.bioinfo.cnio.es) and WebServices (http://apprisws.bioinfo.cnio.es). Both the web servers and the web services are based around the APPRIS Database, a database that presently houses annotations of splice isoforms for five different vertebrate genomes. The APPRIS WebServer and WebServices provide access to the computational methods implemented in the APPRIS Database, while the APPRIS WebServices also allows retrieval of the annotations. The APPRIS WebServer and WebServices annotate splice isoforms with protein structural and functional features, and with data from cross-species alignments. In addition they can use the annotations of structure, function and conservation to select a single reference isoform for each protein-coding gene (the principal protein isoform). APPRIS principal isoforms have been shown to agree overwhelmingly with the main protein isoform detected in proteomics experiments. The APPRIS WebServer allows for the annotation of splice isoforms for individual genes, and provides a range of visual representations and tools to allow researchers to identify the likely effect of splicing events. The APPRIS WebServices permit users to generate annotations automatically in high throughput mode and to interrogate the annotations in the APPRIS Database. The APPRIS WebServices have been implemented using REST architecture to be flexible, modular and automatic. PMID:25990727

  1. Web Archiving Claudia Niedere, Gideon Zenz

    E-print Network

    Nejdl, Wolfgang

    Web Archiving Claudia Niederée, Gideon Zenz Web Science Lecture November 30, 2010 1Web Archiving-time Archiving · Motivation for Web Archiving · Web Archiving at a Glance · Web Archiving Challenges · Web Archiving Methods and Technologies · Current Research in Web archiving Web Archiving, November 30, 2010 2

  2. Critical Path Web Site

    NASA Technical Reports Server (NTRS)

    Robinson, Judith L.; Charles, John B.; Rummel, John A. (Technical Monitor)

    2000-01-01

    Approximately three years ago, the Agency's lead center for the human elements of spaceflight (the Johnson Space Center), along with the National Biomedical Research Institute (NSBRI) (which has the lead role in developing countermeasures) initiated an activity to identify the most critical risks confronting extended human spaceflight. Two salient factors influenced this activity: first, what information is needed to enable a "go/no go" decision to embark on extended human spaceflight missions; and second, what knowledge and capabilities are needed to address known and potential health, safety and performance risks associated with such missions. A unique approach was used to first define and assess those risks, and then to prioritize them. This activity was called the Critical Path Roadmap (CPR) and it represents an opportunity to develop and implement a focused and evolving program of research and technology designed from a "risk reduction" perspective to prevent or minimize the risks to humans exposed to the space environment. The Critical Path Roadmap provides the foundation needed to ensure that human spaceflight, now and in the future, is as safe, productive and healthy as possible (within the constraints imposed on any particular mission) regardless of mission duration or destination. As a tool, the Critical Path Roadmap enables the decisionmaker to select from among the demonstrated or potential risks those that are to be mitigated, and the completeness of that mitigation. The primary audience for the CPR Web Site is the members of the scientific community who are interested in the research and technology efforts required for ensuring safe and productive human spaceflight. They may already be informed about the various space life sciences research programs or they may be newcomers. Providing the CPR content to potential investigators increases the probability of their delivering effective risk mitigations. Others who will use the CPR Web Site and its content include program managers and administrators who track the program and are involved in decisions regarding resource allocation and program evaluation.

  3. Critical Path Web Site

    NASA Technical Reports Server (NTRS)

    Robinson, Judith L.; Charles, John B.; Rummel, John A. (Technical Monitor)

    2000-01-01

    Approximately three years ago, the Agency's lead center for the human elements of spaceflight (the Johnson Space Center), along with the National Biomedical Research Institute (NSBRI) (which has the lead role in developing countermeasures) initiated an activity to identify the most critical risks confronting extended human spaceflight. Two salient factors influenced this activity: first, what information is needed to enable a "go/no go" decision to embark on extended human spaceflight missions; and second, what knowledge and capabilities are needed to address known and potential health, safety and performance risks associated with such missions. A unique approach was used to first define and assess those risks, and then to prioritize them. This activity was called the Critical Path Roadmap (CPR) and it represents an opportunity to develop and implement a focused and evolving program of research and technology designed from a "risk reduction" perspective to prevent or minimize the risks to humans exposed to the space environment. The Critical Path Roadmap provides the foundation needed to ensure that human spaceflight, now and in the future, is as safe, productive and healthy as possible (within the constraints imposed on any particular mission) regardless of mission duration or destination. As a tool, the Critical Path Roadmap enables the decision maker to select from among the demonstrated or potential risks those that are to be mitigated, and the completeness of that mitigation. The primary audience for the CPR Web Site is the members of the scientific community who are interested in the research and technology efforts required for ensuring safe and productive human spaceflight. They may already be informed about the various space life sciences research programs or they may be newcomers. Providing the CPR content to potential investigators increases the probability of their delivering effective risk mitigations. Others who will use the CPR Web Site and its content include program managers and administrators who track the program and are involved in decisions regarding resource allocation and program evaluation.

  4. pWeb: A High-Performance, Parallel-Computing Framework for Web-Browser-Based Medical Simulation.

    PubMed

    Halic, Tansel; Ahn, Woojin; De, Suvranu

    2014-01-01

    This work presents a pWeb - a new language and compiler for parallelization of client-side compute intensive web applications such as surgical simulations. The recently introduced HTML5 standard has enabled creating unprecedented applications on the web. Low performance of the web browser, however, remains the bottleneck of computationally intensive applications including visualization of complex scenes, real time physical simulations and image processing compared to native ones. The new proposed language is built upon web workers for multithreaded programming in HTML5. The language provides fundamental functionalities of parallel programming languages as well as the fork/join parallel model which is not supported by web workers. The language compiler automatically generates an equivalent parallel script that complies with the HTML5 standard. A case study on realistic rendering for surgical simulations demonstrates enhanced performance with a compact set of instructions. PMID:24732497

  5. Guide to Healthy Web Surfing

    MedlinePLUS

    ... gov/medlineplus/healthywebsurfing.html MedlinePlus Guide to Healthy Web Surfing To use the sharing features on this ... the site, use caution. Focus on quality--All Web sites are not created equal Does the site ...

  6. A Stateful Web Augmentation Toolkit

    E-print Network

    Webber, Matthew J. (Matthew James)

    2010-01-01

    This thesis introduces the Stateful Web Augmentation Toolkit (SWAT), a toolkit that gives users control over the presentation and functionality of web content. SWAT extends Chickenfoot, a Firefox browser scripting environment ...

  7. Web-dendritic ribbon growth

    NASA Technical Reports Server (NTRS)

    Hilborn, R. B., Jr.; Faust, J. W., Jr.

    1976-01-01

    A web furnace was constructed for pulling dendritic-web samples. The effect of changes in the furnace thermal geometry on the growth of dendritic-web was studied. Several attempts were made to grow primitive dendrites for use as the dendritic seed crystals for web growth and to determine the optimum twin spacing in the dendritic seed crystal for web growth. Mathematical models and computer programs were used to determine the thermal geometries in the susceptor, crucible melt, meniscus, and web. Several geometries were determined for particular furnace geometries and growth conditions. The information obtained was used in conjunction with results from the experimental growth investigations in order to achieve proper conditions for sustained pulling of two dendrite web ribbons. In addition, the facilities for obtaining the following data were constructed: twin spacing, dislocation density, web geometry, resistivity, majority charge carrier type, and minority carrier lifetime.

  8. Machine learning on Web documents

    E-print Network

    Shih, Lawrence Kai, 1974-

    2004-01-01

    The Web is a tremendous source of information: so tremendous that it becomes difficult for human beings to select meaningful information without support. We discuss tools that help people deal with web information, by, for ...

  9. Acerca de este sitio web

    Cancer.gov

    Página de guía que permite al lector entender la forma en que está organizado el sitio web del Instituto Nacional del Cáncer (NCI), las categorías de información disponibles y las políticas que rigen este sitio web.

  10. Cytoscape Web: an interactive web-based network browser

    PubMed Central

    Lopes, Christian T.; Franz, Max; Kazi, Farzana; Donaldson, Sylva L.; Morris, Quaid; Bader, Gary D.

    2010-01-01

    Summary: Cytoscape Web is a web-based network visualization tool–modeled after Cytoscape–which is open source, interactive, customizable and easily integrated into web sites. Multiple file exchange formats can be used to load data into Cytoscape Web, including GraphML, XGMML and SIF. Availability and Implementation: Cytoscape Web is implemented in Flex/ActionScript with a JavaScript API and is freely available at http://cytoscapeweb.cytoscape.org/ Contact: gary.bader@utoronto.ca Supplementary information: Supplementary data are available at Bioinformatics online. PMID:20656902

  11. Introduction to Interactive Web Design

    E-print Network

    Hickey, Timothy J.

    Introduction to Interactive Web Design Timothy J. Hickey Associate Professor of Computer Science . . . . . . . . . . . . . . . . 17 1.4 Web Browsers and Servers . . . . . . . . . . . . . . . . . . . . . . 17 1.5 URLs and Domain . . . . . . . . . . . . . . . . . . . . . . . . . . 22 I Static Web Site Design 23 2 HTML 27 2.1 Simple HTML elements

  12. Information Diversity in Web Search

    ERIC Educational Resources Information Center

    Liu, Jiahui

    2009-01-01

    The web is a rich and diverse information source with incredible amounts of information about all kinds of subjects in various forms. This information source affords great opportunity to build systems that support users in their work and everyday lives. To help users explore information on the web, web search systems should find information that…

  13. Programmazione Web Approfondimenti di PHP

    E-print Network

    De Antonellis, Valeria

    Programmazione Web Approfondimenti di PHP #12;Gestione dello stato #12;3 Cookie I cookie possono/rimuovere i cookie memorizzati dal browser Programmazione Web - PHP: approfondimenti #12;4 Struttura di un) con scadenza stabilita Programmazione Web - PHP: approfondimenti #12;5 Uso di un cookie ·Uso della

  14. Programmazione Web Laboratorio 2: PHP

    E-print Network

    De Antonellis, Valeria

    Programmazione Web Laboratorio 2: PHP #12;ES 1 - La pagina personale di Bart 2Programmazione Web - Esercizi PHP #12;ES 1 - La pagina personale di Bart 3Programmazione Web - Esercizi PHP #12;Esegue una funzione main() che per prima cosa istanzia un nuovo oggetto della classe Statistico Lo script bart.php 4

  15. The Semantic Web in Education

    ERIC Educational Resources Information Center

    Ohler, Jason

    2008-01-01

    The semantic web or Web 3.0 makes information more meaningful to people by making it more understandable to machines. In this article, the author examines the implications of Web 3.0 for education. The author considers three areas of impact: knowledge construction, personal learning network maintenance, and personal educational administration.…

  16. Semantic Web Services Christoph Bussler

    E-print Network

    Semantic Web Services Christoph Bussler Oracle Corporation The 12th International World Wide Web Conference Budapest, Hungary, May 23rd, 2003 #12;Semantic (Web Services) Christoph Bussler Oracle Corporation behavior! Idea that S(WS) is all about composition and message type matching; it's not! Too many good

  17. The Web Resource Collaboration Center

    ERIC Educational Resources Information Center

    Dunlap, Joanna C.

    2004-01-01

    The Web Resource Collaboration Center (WRCC) is a web-based tool developed to help software engineers build their own web-based learning and performance support systems. Designed using various online communication and collaboration technologies, the WRCC enables people to: (1) build a learning and professional development resource that provides…

  18. Web Intelligence to Make Strategic

    E-print Network

    Ahrendt, Wolfgang

    Using Web Intelligence to Make Strategic (Business) Decisions Staffan Truvé, PhD Co-founder & CTO truve@recordedfuture.com #12;#12;#12;#12;Recorded Future · Web Intelligence · From data collection;#7 #12;#7 #12;#1 #12;#12;Sensors + predictive models #12;Web Intelligence Metrics UNSTRUCTURED TEXT

  19. Search & Analytics in Web Archives

    E-print Network

    Waldmann, Uwe

    Search & Analytics in Web Archives Klaus Berberich References [1] S. Bedathur, K. Berberich, J, ECIR 2010 [3] K. Berberich: " Temporal Search in Web Archives, PhD Thesis, Saarland University, 2010 been identified. Motivation & Overview Web archives such as the Internet Archive or newspaper archives

  20. Ontologies for Web Service Annotations

    E-print Network

    Kissinger, Jessica

    Ontologies for Web Service Annotations OBI & EDAM Dr. Jessica Kissinger Department Of Genetics Role of Enriching OBI for Web Service Annotations EDAM Similarities Between EDAM and OBI, working for Web Service Annotations EDAM Similarities Between EDAM and OBI, working towards the same GOAL Our

  1. A Framework for Using Web

    E-print Network

    Goy, Anna

    A Framework for Using Web Services to Enhance QoS for Content Delivery Francesco Buccafurri presence and low price drove the success of early Web-content delivery. Cur- rently, however, quality designed to enable the QoS analysis of Web-service processes for real-time service provisioning (RTSP

  2. Our system for constructing Web

    E-print Network

    de Lara, Juan

    Our system for constructing Web documents features visual interactive simulations and other. The methods and tools presented stress key points in the development of Web-based appli- cations such as main- tainability, reusability integration, and easy testing. T he Web is changing the way we work. We see

  3. EDUCATIONAL REVIEW Photosynthesis Web resources

    E-print Network

    Govindjee

    EDUCATIONAL REVIEW Photosynthesis Web resources Larry Orr · Govindjee Published online: 25 May 2013 and the World Wide Web has become important for public awareness and for educating the world's population information. After a brief Introduction, rele- vant information found on photosynthesis-related Web sites

  4. The Social Web: Research and

    E-print Network

    Chi, Ed Huai-hsin

    The Social Web: Research and Opportunities Ed H. Chi, Palo Alto Research Center I magine it's 2001 a collaborative hyper- text system for the Web, in which anyone can edit anything they want without having says will become a top 10 Web des- tination. Would you have given him money to try this? The following

  5. Call for Papers Web Graphics

    E-print Network

    Lau, W. H. Nynson

    Call for Papers Web Graphics Special Issue of IEEE Computer Graphics & Applications Guest Editors a migration of traditional applications to run on the Web environment and a growing demand for more powerful web-based applications. Fused by the increasing availability and dramatic reduction in the cost of 3D

  6. The Art of Web Design

    ERIC Educational Resources Information Center

    Longe, Heather

    2008-01-01

    The essential components to building a successful Web site are many times overlooked. There is a misconception that if an individual knows HTML or is a Web developer, an effective Web site can easily be created. In reality, a variety of other factors are needed before technical skills ever come into play. When instructing students in the art of…

  7. The Evolution of Web Searching.

    ERIC Educational Resources Information Center

    Green, David

    2000-01-01

    Explores the interrelation between Web publishing and information retrieval technologies and lists new approaches to Web indexing and searching. Highlights include Web directories; search engines; portalisation; Internet service providers; browser providers; meta search engines; popularity based analysis; natural language searching; links-based…

  8. XML and Better Web Searching.

    ERIC Educational Resources Information Center

    Jackson, Joe; Gilstrap, Donald L.

    1999-01-01

    Addresses the implications of the new Web metalanguage XML for searching on the World Wide Web and considers the future of XML on the Web. Compared to HTML, XML is more concerned with structure of data than documents, and these data structures should prove conducive to precise, context rich searching. (Author/LRW)

  9. Web Browser Trends and Technologies.

    ERIC Educational Resources Information Center

    Goodwin-Jones, Bob

    2000-01-01

    Discusses Web browsers and how their capabilities have been expanded, support for Web browsing on different devices (cell phones, palmtop computers, TV sets), and browser support for the next-generation Web authoring language, XML ("extensible markup language"). (Author/VWL)

  10. Sensor system for web inspection

    DOEpatents

    Sleefe, Gerard E. (1 Snowcap Ct., Cedar Crest, NM 87008); Rudnick, Thomas J. (626 E. Jackson Rd., St. Louis, MO 63119); Novak, James L. (11048 Malaguena La. NE., Albuquerque, NM 87111)

    2002-01-01

    A system for electrically measuring variations over a flexible web has a capacitive sensor including spaced electrically conductive, transmit and receive electrodes mounted on a flexible substrate. The sensor is held against a flexible web with sufficient force to deflect the path of the web, which moves relative to the sensor.

  11. Web Science Workshop September, 2005

    E-print Network

    Salama, Khaled

    Web Science Workshop 12th -13th September, 2005 Hosted by the British Computer Society, London on Web Science, at their headquarters in Southampton Street, London. Attendance at the workshop of the workshop was to explore what the critical research challenges are for the future of the World Wide Web

  12. Using ESO Reflex with Web Services

    NASA Astrophysics Data System (ADS)

    Järveläinen, P.; Savolainen, V.; Oittinen, T.; Maisala, S.; Ullgrén, M. Hook, R.

    2008-08-01

    ESO Reflex is a prototype graphical workflow system, based on Taverna, and primarily intended to be a flexible way of running ESO data reduction recipes along with other legacy applications and user-written tools. ESO Reflex can also readily use the Taverna Web Services features that are based on the Apache Axis SOAP implementation. Taverna is a general purpose Web Service client, and requires no programming to use such services. However, Taverna also has some restrictions: for example, no numerical types such integers. In addition the preferred binding style is document/literal wrapped, but most astronomical services publish the Axis default WSDL using RPC/encoded style. Despite these minor limitations we have created simple but very promising test VO workflow using the Sesame name resolver service at CDS Strasbourg, the Hubble SIAP server at the Multi-Mission Archive at Space Telescope (MAST) and the WESIX image cataloging and catalogue cross-referencing service at the University of Pittsburgh. ESO Reflex can also pass files and URIs via the PLASTIC protocol to visualisation tools and has its own viewer for VOTables. We picked these three Web Services to try to set up a realistic and useful ESO Reflex workflow. They also demonstrate ESO Reflex abilities to use many kind of Web Services because each of them requires a different interface. We describe each of these services in turn and comment on how it was used

  13. Web-Based Mapping Puts the World at Your Fingertips

    NASA Technical Reports Server (NTRS)

    2008-01-01

    NASA's award-winning Earth Resources Laboratory Applications Software (ELAS) package was developed at Stennis Space Center. Since 1978, ELAS has been used worldwide for processing satellite and airborne sensor imagery data of the Earth's surface into readable and usable information. DATASTAR Inc., of Picayune, Mississippi, has used ELAS software in the DATASTAR Image Processing Exploitation (DIPEx) desktop and Internet image processing, analysis, and manipulation software. The new DIPEx Version III includes significant upgrades and improvements compared to its esteemed predecessor. A true World Wide Web application, this product evolved with worldwide geospatial dimensionality and numerous other improvements that seamlessly support the World Wide Web version.

  14. Surface Characterization of a Paper Web at the Wet End

    SciTech Connect

    Abidi, B.R.; Goddard, J.S.; Sari-Sarraf, H.

    1999-06-23

    We present an algorithm for the detection and representation of structures and non-uniformities on the surface of a paper web at the wet end (slurry). This image processing/analysis algorithm is developed as part of a complete on-line web characterization system. Images of the slurry, carried by a fast moving table, are obtained using a stroboscopic light and a CCD camera. The images have very poor contrast and contain noise from a variety of sources. Those sources include the acquisition system itself, the lighting, the vibrations of the moving table being imaged, and the scattering water from the same table's movement. After many steps of enhancement, conventional edge detection methods were still inconclusive and were discarded. The facet model algorithm, is applied to the images and is found successful in detecting the various topographic characteristics of the surface of the slurry. Pertinent topographic elements are retained and a filtered image is computed based on the general appearance and characteristics of the structures in question. Morphological operators are applied to detect and segment regions of interest. Those regions are then filtered according to their size, elongation, and orientation.Their bounding rectangles are computed and superimposed on the original image. Real time implementation of this algorithm for on-line use is also addressed in this paper. The algorithm is tested on over 500 images of slurry and is found to detect nonuniformities on all 500 images. Locating and characterizing all different size structures is also achieved on all 500 images of the web.

  15. KWIC [KWiCFinder homepage] [WebKWIC homepage] [WebCorp

    E-print Network

    Sekine, Satoshi

    WEB KWIC WEB WEB KWIC [KWiCFinder homepage] [WebKWIC homepage] [WebCorp homepage] WEB KWIC [ 2003] WEB IDE 32 G KWIC 350G WEB 100 2 cdb 40 KWIC WEB WEB NTCIR Web Retrieval Task 100G 1100 [Eguchi et. al 2002] WEB WEB Yahoo! Japan UNIX GNU Wget WEB html,htm txt robots.txt 3500 1 G G 1 #12;KWIC ( ) 1 40 1TB

  16. Introduction Web : IUT de Villetaneuse.

    E-print Network

    Lacroix, Mathieu

    'année dernière, vous avez vu comment créer des pages Web statiques, c'est-à-dire des pages Web dont le contenu/~lacroix/. 1.1 Sites dynamiques Grâce au code HTML/CSS, nous avons vu qu'il est possible de créer des pages Web ne peuvent avoir accès qu'à des pages Web déjà stockées sur des serveurs. Pour modifier une page Web

  17. Detecting and Mapping Hidden Baryons in the Intergalactic Medium in the Ultraviolet

    NASA Astrophysics Data System (ADS)

    Martin, Christopher

    I discuss several experimental projects underway or proposed designed to discover and map emission from the Intergalactic Medium in the rest ultraviolet. The Cosmic Web Imager (CWI) is a ground-based high resolution spectrometer designed to detect low surface brightness emission from redshifted Lyman alpha, OVI and CIV at Palomar and Keck Observatories, over 2CWI and on technology developments that will support a UV IGM mapping mission in next decade. :

  18. The IGM Project: Searching For IGM Emission Over 0

    NASA Astrophysics Data System (ADS)

    Martin, Christopher D.; Matuszewski, M.; Morrissey, P.; Moore, A.; CWI Team

    2013-01-01

    I discuss several experimental projects underway or proposed designed to discover and map emission from the IGM. The Cosmic Web Imager (CWI) is a ground-based high resolution spectrometer designed to detect low surface brightness emission from redshifted Lyman alpha, OVI and CIV at Palomar and Keck Observatories, over 2CWI. This work is supported by NASA and NSF.

  19. Steganograpic image transformation

    NASA Astrophysics Data System (ADS)

    Takano, Shuichi; Tanaka, Kiyoshi; Sugimura, Tatsuo

    1999-04-01

    Due to the drastic development of Internet, it has recently been a critical problem to secure multimedia contents against illegal use. In order to solve this problem, data hiding has drawn great attention as a promising method that plays a complementary role to conventional cryptographic techniques. The idea of this approach is found in ancient Greek literature as 'Steganography,' which means a 'covered writing' for special secret communication. This paper presents a new method for steganographic image transformation, which is different from conventional data hiding techniques. The transformation is achieved in frequency domain and the concept of Fourier filtering method is used. An input image is transformed into a fractal image, which can be used in Computer Graphic (CG) applications. Unauthorized users will not notice the 'secret' original image behind the fractal image, but even if they know that there is a hidden image it will be difficult for them to estimate the original image from the transformed image. Only authorized users who know the proper keys can regenerate the original image. The proposed method is applicable not only as a security tool for multimedia contents on web pages but also as a steganographic secret communication method through fractal images.

  20. Student bodies: psycho-education communities on the web.

    PubMed Central

    Dev, P.; Winzelberg, A. J.; Celio, A.; Taylor, C. B.

    1999-01-01

    We have developed a Web-delivered, multimedia health educational program, Student Bodies, designed to improve body satisfaction, a probable risk factor for the development of eating disorders in young women. The program includes psycho-educational content and a newsgroup for communication, and is delivered in a structured framework of weekly readings, assignments and postings to the newsgroup. Intervention group participants improved their body image, and reduced other attitudes that predispose to eating disorders. Images Figure 1 PMID:10566411

  1. Web worlds, web-colouring matrices, and web-mixing matrices

    E-print Network

    Dukes, Mark; Steingrimsson, Einar; White, Chris D

    2013-01-01

    We introduce a new combinatorial object called a web world that consists of a set of web diagrams. The diagrams of a web world are generalizations of graphs, and each is built on the same underlying graph. Instead of ordinary vertices the diagrams have pegs, and edges incident to a peg have different heights on the peg. The web world of a web diagram is the set of all web diagrams that result from permuting the order in which endpoints of edges appear on a peg. The motivation comes from particle physics, where web diagrams arise as particular types of Feynman diagrams describing scattering amplitudes in non-Abelian gauge (Yang-Mills) theories. To each web world we associate two matrices called the web-colouring matrix and web-mixing matrix. The entries of these matrices are indexed by ordered pairs of web diagrams (D_1,D_2), and are computed from those colourings of the edges of D_1 that yield D_2 under a transformation determined by each colouring. We show that colourings of a web diagram (whose constituent ...

  2. Annotating images by mining image search results.

    PubMed

    Wang, Xin-Jing; Zhang, Lei; Li, Xirong; Ma, Wei-Ying

    2008-11-01

    Although it has been studied for years by the computer vision and machine learning communities, image annotation is still far from practical. In this paper, we propose a novel attempt at model-free image annotation, which is a data-driven approach that annotates images by mining their search results. Some 2.4 million images with their surrounding text are collected from a few photo forums to support this approach. The entire process is formulated in a divide-and-conquer framework where a query keyword is provided along with the uncaptioned image to improve both the effectiveness and efficiency. This is helpful when the collected data set is not dense everywhere. In this sense, our approach contains three steps: 1) the search process to discover visually and semantically similar search results, 2) the mining process to identify salient terms from textual descriptions of the search results, and 3) the annotation rejection process to filter out noisy terms yielded by Step 2. To ensure real-time annotation, two key techniques are leveraged-one is to map the high-dimensional image visual features into hash codes, the other is to implement it as a distributed system, of which the search and mining processes are provided as Web services. As a typical result, the entire process finishes in less than 1 second. Since no training data set is required, our approach enables annotating with unlimited vocabulary and is highly scalable and robust to outliers. Experimental results on both real Web images and a benchmark image data set show the effectiveness and efficiency of the proposed algorithm. It is also worth noting that, although the entire approach is illustrated within the divide-and conquer framework, a query keyword is not crucial to our current implementation. We provide experimental results to prove this. PMID:18787241

  3. Web-based pathology practice examination usage

    PubMed Central

    Klatt, Edward C.

    2014-01-01

    Context: General and subject specific practice examinations for students in health sciences studying pathology were placed onto a free public internet web site entitled web path and were accessed four clicks from the home web site menu. Subjects and Methods: Multiple choice questions were coded into. html files with JavaScript functions for web browser viewing in a timed format. A Perl programming language script with common gateway interface for web page forms scored examinations and placed results into a log file on an internet computer server. The four general review examinations of 30 questions each could be completed in up to 30 min. The 17 subject specific examinations of 10 questions each with accompanying images could be completed in up to 15 min each. The results of scores and user educational field of study from log files were compiled from June 2006 to January 2014. Results: The four general review examinations had 31,639 accesses with completion of all questions, for a completion rate of 54% and average score of 75%. A score of 100% was achieved by 7% of users, ?90% by 21%, and ?50% score by 95% of users. In top to bottom web page menu order, review examination usage was 44%, 24%, 17%, and 15% of all accessions. The 17 subject specific examinations had 103,028 completions, with completion rate 73% and average score 74%. Scoring at 100% was 20% overall, ?90% by 37%, and ?50% score by 90% of users. The first three menu items on the web page accounted for 12.6%, 10.0%, and 8.2% of all completions, and the bottom three accounted for no more than 2.2% each. Conclusions: Completion rates were higher for shorter 10 questions subject examinations. Users identifying themselves as MD/DO scored higher than other users, averaging 75%. Usage was higher for examinations at the top of the web page menu. Scores achieved suggest that a cohort of serious users fully completing the examinations had sufficient preparation to use them to support their pathology education. PMID:25337431

  4. Improving Science Communication with Responsive Web Design

    NASA Astrophysics Data System (ADS)

    Hilverda, M.

    2013-12-01

    Effective science communication requires clarity in both content and presentation. Content is increasingly being viewed via the Web across a broad range of devices, which can vary in screen size, resolution, and pixel density. Readers access the same content from desktop computers, tablets, smartphones, and wearable computing devices. Creating separate presentation formats optimized for each device is inefficient and unrealistic as new devices continually enter the marketplace. Responsive web design is an approach that puts content first within a presentation design that responds automatically to its environment. This allows for one platform to be maintained that can be used effectively for every screen. The layout adapts to screens of all sizes ensuring easy viewing of content for readers regardless of their device. Responsive design is accomplished primarily by the use of media queries within style sheets, which allows for changes to layout properties to be defined based on media types (i.e. screen, print) and resolution. Images and other types of multimedia can also be defined to scale automatically to fit different screen dimensions, although some media types require additional effort for proper implementation. Hardware changes, such as high pixel density screens, also present new challenges for effective presentation of content. High pixel density screens contain a greater number of pixels within a screen area increasing the pixels per inch (PPI) compared to standard screens. The result is increased clarity for text and vector media types, but often decreased clarity for standard resolution raster images. Media queries and other custom solutions can assist by specifying higher resolution images for high pixel density screens. Unfortunately, increasing image resolution results in significantly more data being transferred to the device. Web traffic on mobile devices such as smartphones and tablets is on a steady growth trajectory and many mobile devices around the world use low-bandwidth connections. Communicating science effectively includes efficient delivery of the information to the reader. To meet this criteria, responsive designs should also incorporate "mobile first" elements such as serving ideal image sizes (a low resolution cell phone does not need to receive a large desktop image) and a focus on fast, readable content delivery. The technical implementation of responsive web design is constantly changing as new web standards and approaches become available. However, fundamental design principles such as grid layouts, clear typography, and proper use of white space should be an important part of content delivery within any responsive design. This presentation will discuss current responsive design approaches for improving scientific communication across multiple devices, operating systems, and bandwidth capacities. The presentation will also include example responsive designs for scientific papers and websites. Implementing a responsive design approach with a focus on content and fundamental design principles is an important step to ensuring scientific information remains clear and accessible as screens and devices continue to evolve.

  5. An Efficient Web Page Ranking for Semantic Web

    NASA Astrophysics Data System (ADS)

    Chahal, P.; Singh, M.; Kumar, S.

    2014-01-01

    With the enormous amount of information presented on the web, the retrieval of relevant information has become a serious problem and is also the topic of research for last few years. The most common tools to retrieve information from web are search engines like Google. The Search engines are usually based on keyword searching and indexing of web pages. This approach is not very efficient as the result-set of web pages obtained include large irrelevant pages. Sometimes even the entire result-set may contain lot of irrelevant pages for the user. The next generation of search engines must address this problem. Recently, many semantic web search engines have been developed like Ontolook, Swoogle, which help in searching meaningful documents presented on semantic web. In this process the ranking of the retrieved web pages is very crucial. Some attempts have been made in ranking of semantic web pages but still the ranking of these semantic web documents is neither satisfactory and nor up to the user's expectations. In this paper we have proposed a semantic web based document ranking scheme that relies not only on the keywords but also on the conceptual instances present between the keywords. As a result only the relevant page will be on the top of the result-set of searched web pages. We explore all relevant relations between the keywords exploring the user's intention and then calculate the fraction of these relations on each web page to determine their relevance. We have found that this ranking technique gives better results than those by the prevailing methods.

  6. WebVR: an interactive web browser for virtual environments

    NASA Astrophysics Data System (ADS)

    Barsoum, Emad; Kuester, Falko

    2005-03-01

    The pervasive nature of web-based content has lead to the development of applications and user interfaces that port between a broad range of operating systems and databases, while providing intuitive access to static and time-varying information. However, the integration of this vast resource into virtual environments has remained elusive. In this paper we present an implementation of a 3D Web Browser (WebVR) that enables the user to search the internet for arbitrary information and to seamlessly augment this information into virtual environments. WebVR provides access to the standard data input and query mechanisms offered by conventional web browsers, with the difference that it generates active texture-skins of the web contents that can be mapped onto arbitrary surfaces within the environment. Once mapped, the corresponding texture functions as a fully integrated web-browser that will respond to traditional events such as the selection of links or text input. As a result, any surface within the environment can be turned into a web-enabled resource that provides access to user-definable data. In order to leverage from the continuous advancement of browser technology and to support both static as well as streamed content, WebVR uses ActiveX controls to extract the desired texture skin from industry strength browsers, providing a unique mechanism for data fusion and extensibility.

  7. IML: An image markup language.

    PubMed Central

    Lober, W. B.; Trigg, L. J.; Bliss, D.; Brinkley, J. M.

    2001-01-01

    Image Markup Language is an extensible markup language (XML) schema used to describe both image metadata and annotations. It describes both data pertaining to an entire image, and data that are tied to specific regions or features of the image. Developed for a specific domain in Medical Education, this pa-per describes extensions to take advantage of the Dublin Core metadata standard, and of an XML schema for vector graphics representation. We have developed a prototype system of open source tools implementing an authoring system, a client system, and an image annotation database which can be queried though the Web. PMID:11825219

  8. Body Image

    MedlinePLUS

    ... About Us Contact Us Text size | Print | Body Image Developing a positive body image and a healthy mental attitude is crucial to ... on for tips to have a healthy body image. Topics About body image When you look in ...

  9. Scientific Images

    MedlinePLUS

    ... National Alzheimer's Project Act (NAPA) About ADEAR Scientific Images Brain Images | Neurons | Alzheimer’s Disease Mechanisms and Processes ... then open the image from your computer. Brain Images Front View of Brain - High Resolution (227K) Front ...

  10. WebIQ: Learning from the Web to Match Deep-Web Query Interfaces Wensheng Wu, AnHai Doan

    E-print Network

    Meng, Weiyi

    WebIQ: Learning from the Web to Match Deep-Web Query Interfaces Wensheng Wu, AnHai Doan University of Illinois, Urbana, USA Clement Yu University of Illinois, Chicago, USA Abstract Integrating Deep Web sources describe WebIQ, a solution that learns from both the Surface Web and the Deep Web to automatically discover

  11. JSF AND VISUAL WEB DEVELOPMENT

    E-print Network

    Liang, Y. Daniel

    JSF AND VISUAL WEB DEVELOPMENT CHAPTER 41 Objectives To explain what JSF is (§41.1). To create/16/09 10:18 AM Page 41­1 #12;41­2 Chapter 41 JSF and Visual Web Development 41.1 Introduction The use of servlets, introduced in Chapter 39, is the foundation of the Java Web technology. It is a primitive way

  12. Brane webs and random processes

    NASA Astrophysics Data System (ADS)

    Iqbal, Amer; Qureshi, Babar A.; Shabbir, Khurram; Shehper, Muhammad A.

    2015-11-01

    We study (p, q) 5-brane webs dual to certain N M5-brane configurations and show that the partition function of these brane webs gives rise to cylindric Schur process with period N. This generalizes the previously studied case of period 1. We also show that open string amplitudes corresponding to these brane webs are captured by the generating function of cylindric plane partitions with profile determined by the boundary conditions imposed on the open string amplitudes.

  13. Bringing Web 2.0 to Web Lectures

    ERIC Educational Resources Information Center

    Ketterl, Markus; Mertens, Robert; Vornberger, Oliver

    2009-01-01

    Purpose: At many universities, web lectures have become an integral part of the e-learning portfolio over the last few years. While many aspects of the technology involved, like automatic recording techniques or innovative interfaces for replay, have evolved at a rapid pace, web lecturing has remained independent of other important developments…

  14. Endoscopic Web Localization for Laparoscopic Duodenal Web Excision.

    PubMed

    Bruns, Nicholas E; Gibbons, Alexander T; Wyneski, Matthew J; Ponsky, Todd A

    2015-12-01

    When performing an open duodenal web excision, it is helpful to identify the web using a nasogastric tube because it is often difficult to determine where the web origin is located when looking at the serosal side of the bowel. However, it may be challenging to navigate the nasogastric tube to the web during laparoscopy. We present a novel technique that utilizes intraoperative endoscopy to precisely identify the location of the duodenal web, facilitating laparoscopic excision. Intraoperative endoscopy was implemented in the case of a 3-month-old boy undergoing laparoscopic excision of a duodenal web. With endoscopic visualization and transillumination, the duodenal web was precisely identified and excised laparoscopically. A supplemental video of the case presentation and technique is provided in the online version of this manuscript (Supplemental Digital Content 1, http://links.lww.com/SLE/A134). The procedure was completed successfully and the patient did well postoperatively. Flexible endoscopy is a useful adjunct for duodenal web localization during laparoscopy, improving on the previous method of estimating the location based on a change in duodenal caliber. PMID:26551236

  15. Work of the Web Weavers: Web Development in Academic Libraries

    ERIC Educational Resources Information Center

    Bundza, Maira; Vander Meer, Patricia Fravel; Perez-Stable, Maria A.

    2009-01-01

    Although the library's Web site has become a standard tool for seeking information and conducting research in academic institutions, there are a variety of ways libraries approach the often challenging--and sometimes daunting--process of Web site development and maintenance. Three librarians at Western Michigan University explored issues related…

  16. Open Sensor Web Architecture: Stateful Web Tom Kobialka 1

    E-print Network

    Melbourne, University of

    The identification of common data operations and transformations on sensor data has fuelled the birth of the Sensor be discovered, accessed and controlled over the World Wide Web. The NICTA Open Sensor Web Architecture [7 Enablement (SWE) method [2] which encompasses specifications for interfaces, protocols and encodings

  17. Metadata for Web Resources: How Metadata Works on the Web.

    ERIC Educational Resources Information Center

    Dillon, Martin

    This paper discusses bibliographic control of knowledge resources on the World Wide Web. The first section sets the context of the inquiry. The second section covers the following topics related to metadata: (1) definitions of metadata, including metadata as tags and as descriptors; (2) metadata on the Web, including general metadata systems,…

  18. Networking and the Web World-Wide Web

    E-print Network

    Lin, Ming C.

    Networking and the Web #12;World-Wide Web · Wide use of computers by the general public is directly a7ributable to the crea8on of the World Wide-switched #12;Rou8ng and Forwarding · So, how does a message get from computer A

  19. Science on the Web: Web Activities Using Scientific Data.

    ERIC Educational Resources Information Center

    Poppe, Barbara; McAlister, Deborah; Richardson, Lisa

    This guide is intended to help teachers learn about using special software tools for the World Wide Web. It makes use of the scientific data produced by the National Oceanic and Atmospheric Administration (NOAA) and other government agencies. Activities in this booklet include: (1) "Finding People in Cyberspace"; (2) "Finding Science on the Web";…

  20. A Digital Library of Radiology Images

    PubMed Central

    Kahn, Charles E.

    2006-01-01

    A web-based virtual library of peer-reviewed radiological images was created for use in education and clinical decision support. Images were obtained from open-access content of five online radiology journals and one e-learning web site. Figure captions were indexed by Medical Subject Heading (MeSH) codes, imaging modality, and patient age and sex. This digital library provides a new, valuable online resource. PMID:17238591

  1. A digital library of radiology images.

    PubMed

    Kahn, Charles E

    2006-01-01

    A web-based virtual library of peer-reviewed radiological images was created for use in education and clinical decision support. Images were obtained from open-access content of five online radiology journals and one e-learning web site. Figure captions were indexed by Medical Subject Heading (MeSH) codes, imaging modality, and patient age and sex. This digital library provides a new, valuable online resource. PMID:17238591

  2. Flickr's Potential as an Academic Image Resource: An Exploratory Study

    ERIC Educational Resources Information Center

    Angus, Emma; Stuart, David; Thelwall, Mike

    2010-01-01

    Many web 2.0 sites are extremely popular and contain vast amounts of content, but how much of this content is useful in academia? This exploratory paper investigates the potential use of the popular web 2.0 image site Flickr as an academic image resource. The study identified images tagged with any one of 12 subject names derived from recognized…

  3. WebGLORE: a Web service for Grid LOgistic REgression

    PubMed Central

    Jiang, Wenchao; Li, Pinghao; Wang, Shuang; Wu, Yuan; Xue, Meng; Ohno-Machado, Lucila; Jiang, Xiaoqian

    2013-01-01

    WebGLORE is a free web service that enables privacy-preserving construction of a global logistic regression model from distributed datasets that are sensitive. It only transfers aggregated local statistics (from participants) through Hypertext Transfer Protocol Secure to a trusted server, where the global model is synthesized. WebGLORE seamlessly integrates AJAX, JAVA Applet/Servlet and PHP technologies to provide an easy-to-use web service for biomedical researchers to break down policy barriers during information exchange. Availability and implementation: http://dbmi-engine.ucsd.edu/webglore3/. WebGLORE can be used under the terms of GNU general public license as published by the Free Software Foundation. Contact: x1jiang@ucsd.edu PMID:24072732

  4. Net Survey: "Top Ten Mistakes" in Academic Web Design.

    ERIC Educational Resources Information Center

    Petrik, Paula

    2000-01-01

    Highlights the top ten mistakes in academic Web design: (1) bloated graphics; (2) scaling images; (3) dense text; (4) lack of contrast; (5) font size; (6) looping animations; (7) courseware authoring software; (8) scrolling/long pages; (9) excessive download; and (10) the nothing site. Includes resources. (CMK)

  5. Creating Polyphony with Exploratory Web Documentation in Singapore

    ERIC Educational Resources Information Center

    Lim, Sirene; Hoo, Lum Chee

    2012-01-01

    We introduce and reflect on "Images of Teaching", an ongoing web documentation research project on preschool teaching in Singapore. This paper discusses the project's purpose, methodological process, and our learning points as researchers who aim to contribute towards inquiry-based professional learning. The website offers a window into some…

  6. MedicalPhysicsWeb PHYSICS IN MEDICINE & BIOLOGY

    E-print Network

    Sridhar, Srinivas

    MedicalPhysicsWeb PHYSICS IN MEDICINE & BIOLOGY Oct 11, 2010 D K Nagesha et al 2010 Phys. Med. Biol efficiency of IGRT can be further enhanced by biological in-situ dose painting (BIS-IGRT) of radiosensitizers for biological in-situ image-guided radio therapy (BIS-IGRT) Page 1 of 2Radiosensitizer-eluting nanocoatings

  7. Web-Based Learning and Instruction Support System for Pneumatics

    ERIC Educational Resources Information Center

    Yen, Chiaming; Li, Wu-Jeng

    2003-01-01

    This research presents a Web-based learning and instructional system for Pneumatics. The system includes course material, remote data acquisition modules, and a pneumatic laboratory set. The course material is in the HTML format accompanied with text, still and animated images, simulation programs, and computer aided design tools. The data…

  8. Technobabble: Photoshop 6 Converges Web, Print Photograph-Editing Capabilities.

    ERIC Educational Resources Information Center

    Communication: Journalism Education Today, 2001

    2001-01-01

    Discusses the newly-released Adobe Photoshop 6, and its use in student publications. Notes its refined text-handling capabilities, a more user-friendly interface, integrated vector functions, easier preparation of Web images, and new and more powerful layer functions. (SR)

  9. 10 Web Tools to Create User-Friendly Sites

    ERIC Educational Resources Information Center

    Pretlow, Cassi

    2008-01-01

    Surprisingly, many tools exist on the web that can help sites become more inviting and easier to use. By now, many are probably familiar with the free tools offered by Flickr, del.icio.us, or YouTube for embedding images, tags, and videos on webpages. This article presents a comprehensive list of some perhaps lesser-known but equally useful tools…

  10. Designing Web Pages That Are Usable and Accessible to All.

    ERIC Educational Resources Information Center

    Wheaton, Joe E.; Granello, Paul F.

    The Internet is a growing source of information for persons worldwide, but for many people with disabilities the Internet can be a confusing jumble of images, frames, scripts, and colors that make little sense. Although learning how to make Web pages accessible to all takes some effort, it is effort well spent for one very good reason:…

  11. Building Data Integration Systems for the Web

    E-print Network

    Halevy, Alon

    engines Data is embedded in web page, behind forms #12;Outline · Surfacing the Deep Web · Searching tables on the surface Web · Fusion Tables: a platform for data management on the Web. #12;What is the Deep Web? store to be integrated into general web search ­Can't assume special query syntax #12;Surfacing the Deep Web [Madhavan et

  12. Web Search Technology Clement Yu Weiyi Meng

    E-print Network

    Meng, Weiyi

    . The Web can be divided into the Surface Web and the Deep Web (or Hidden Web) (Bergman, 2000). The former the publisher's search engine, then these articles belong to the Deep Web. Web pages that are dynamicallyWeb Search Technology Clement Yu Weiyi Meng Department of Computer Science Department of Computer

  13. Digital hand atlas and computer-aided bone age assessment via the Web

    NASA Astrophysics Data System (ADS)

    Cao, Fei; Huang, H. K.; Pietka, Ewa; Gilsanz, Vicente

    1999-07-01

    A frequently used assessment method of bone age is atlas matching by a radiological examination of a hand image against a reference set of atlas patterns of normal standards. We are in a process of developing a digital hand atlas with a large standard set of normal hand and wrist images that reflect the skeletal maturity, race and sex difference, and current child development. The digital hand atlas will be used for a computer-aided bone age assessment via Web. We have designed and partially implemented a computer-aided diagnostic (CAD) system for Web-based bone age assessment. The system consists of a digital hand atlas, a relational image database and a Web-based user interface. The digital atlas is based on a large standard set of normal hand an wrist images with extracted bone objects and quantitative features. The image database uses a content- based indexing to organize the hand images and their attributes and present to users in a structured way. The Web-based user interface allows users to interact with the hand image database from browsers. Users can use a Web browser to push a clinical hand image to the CAD server for a bone age assessment. Quantitative features on the examined image, which reflect the skeletal maturity, will be extracted and compared with patterns from the atlas database to assess the bone age. The relevant reference imags and the final assessment report will be sent back to the user's browser via Web. The digital atlas will remove the disadvantages of the currently out-of-date one and allow the bone age assessment to be computerized and done conveniently via Web. In this paper, we present the system design and Web-based client-server model for computer-assisted bone age assessment and our initial implementation of the digital atlas database.

  14. Space Images for NASA/JPL

    NASA Technical Reports Server (NTRS)

    Boggs, Karen; Gutheinz, Sandy C.; Watanabe, Susan M.; Oks, Boris; Arca, Jeremy M.; Stanboli, Alice; Peez, Martin; Whatmore, Rebecca; Kang, Minliang; Espinoza, Luis A.

    2010-01-01

    Space Images for NASA/JPL is an Apple iPhone application that allows the general public to access featured images from the Jet Propulsion Laboratory (JPL). A back-end infrastructure stores, tracks, and retrieves space images from the JPL Photojournal Web server, and catalogs the information into a streamlined rating infrastructure.

  15. Semi-supervised Hierarchical Clustering for Personalized Web Image Organization

    E-print Network

    Tan, Ah-Hwee

    of topics and sub-topics. Some of them may be relevant (e.g. "white tiger" and "Indian tiger"), and some of them may belong to a more general topic (e.g. "tiger" and "bird" belong to "animal"). It may result

  16. Validating Co-Training Models for Web Image Classification

    E-print Network

    Zhang, Dell

    Co-training is a semi-supervised learning method that is designed to take advantage of the redundancy that is present when the object to be identified has multiple descriptions. Co-training is known to work well when the ...

  17. Programmazione Web Laboratorio 3: PHP

    E-print Network

    De Antonellis, Valeria

    Programmazione Web Laboratorio 3: PHP #12;Definire un'applicazione Web che consta di tre pagine: · una pagina index.php che visualizza le miniature (di dimensioni predeterminate) delle immagini · una pagina visualizza.php per la visualizzazione della singola immagine, dotata di collegamenti all

  18. Web Accessibility and Accessibility Instruction

    ERIC Educational Resources Information Center

    Green, Ravonne A.; Huprich, Julia

    2009-01-01

    Section 508 of the Americans with Disabilities Act (ADA) mandates that programs and services be accessible to people with disabilities. While schools of library and information science (SLIS*) and university libraries should model accessible Web sites, this may not be the case. This article examines previous studies about the Web accessibility of…

  19. Web Service Composition Jorg Hoffmann

    E-print Network

    Hoffmann, Jörg -FR 6.2

    - tration, configuration, enactment, and analysis of business processes."[42] Composition: A combination ingo.weber@nicta.com.au Synonyms Semantic web service composition, AI planning, business process-oriented architecture, a software architecture based on Web services. BP: A Business Process "consists of a set

  20. The Great Lakes Food Web.

    ERIC Educational Resources Information Center

    Baker, Marjane L.

    1997-01-01

    Presents a play for students in grades four to nine that incorporates the scientific names, physical characteristics, feeding habits, interactions, and interdependence of the plants and animals that make up the Great Lakes food web to facilitate the learning of this complex system. Includes a Great Lakes food web chart. (AIM)

  1. Freebies for the Library Web.

    ERIC Educational Resources Information Center

    Perez, Ernest

    2000-01-01

    Illustrates the possibilities of freely or inexpensively connecting a library to the Internet. Discusses the advertising-supported approach; local resources for free or budget Internet resources; public access catalogs; examples of free Web materials and of libraries that have achieved a low-budget Web presence; building an effective planning…

  2. Designing Web-Based Training.

    ERIC Educational Resources Information Center

    Barron, Ann

    1998-01-01

    Outlines Web-based training (WBT) options (page-, frame-, and screen-based), provides general guidelines for designing Web-delivered instruction. Discusses case studies of a teacher's guide to the Holocaust and sales training for a telecommunications company. Provides addresses of sample WBT sites. Includes reader reactions and author responses to…

  3. NASA: Data on the Web.

    ERIC Educational Resources Information Center

    Galica, Carol

    1997-01-01

    Provides an annotated bibliography of selected NASA Web sites for K-12 math and science teachers: the NASA Lewis Research Center Learning Technologies K-12 Home Page, Spacelink, NASA Quest, Basic Aircraft Design Page, International Space Station, NASA Shuttle Web Site, LIFTOFF to Space Education, Telescopes in Education, and Space Educator's…

  4. Advanced dendritic web growth development

    NASA Technical Reports Server (NTRS)

    Hopkins, R. H.

    1985-01-01

    A program to develop the technology of the silicon dendritic web ribbon growth process is examined. The effort is being concentrated on the area rate and quality requirements necessary to meet the JPL/DOE goals for terrestrial PV applications. Closed loop web growth system development and stress reduction for high area rate growth is considered.

  5. Building a Web Intelligence Machine

    E-print Network

    Ahrendt, Wolfgang

    for Analysis 18 #12;640,000 Real-time Sources 8+ Billion Time-tagged Facts "Kuo expects that Apple Rape riots Factory collapse Mursi anniversary Jan 25 anniversary Libya 9/11 Gaza operation #12;Protests;Challenges ­ running a web intelligence machine is a process industry! · Real time process ­ from web

  6. Staleness Among Web Search Engines.

    ERIC Educational Resources Information Center

    Koehler, Wallace

    1998-01-01

    Describes a study of four major Web search engines that tested for staleness, a condition when a significant number of the hits it returns point to Web pages or server-level domains (SLD) that are no longer viable. Results of tests of URLs with AltaVista, HotBot, InfoSeek, and Open Text are discussed. (Author/LRW)

  7. Digging Deeper: The Deep Web.

    ERIC Educational Resources Information Center

    Turner, Laura

    2001-01-01

    Focuses on the Deep Web, defined as Web content in searchable databases of the type that can be found only by direct query. Discusses the problems of indexing; inability to find information not indexed in the search engine's database; and metasearch engines. Describes 10 sites created to access online databases or directly search them. Lists ways…

  8. New Generation Sensor Web Enablement

    PubMed Central

    Bröring, Arne; Echterhoff, Johannes; Jirka, Simon; Simonis, Ingo; Everding, Thomas; Stasch, Christoph; Liang, Steve; Lemmens, Rob

    2011-01-01

    Many sensor networks have been deployed to monitor Earth’s environment, and more will follow in the future. Environmental sensors have improved continuously by becoming smaller, cheaper, and more intelligent. Due to the large number of sensor manufacturers and differing accompanying protocols, integrating diverse sensors into observation systems is not straightforward. A coherent infrastructure is needed to treat sensors in an interoperable, platform-independent and uniform way. The concept of the Sensor Web reflects such a kind of infrastructure for sharing, finding, and accessing sensors and their data across different applications. It hides the heterogeneous sensor hardware and communication protocols from the applications built on top of it. The Sensor Web Enablement initiative of the Open Geospatial Consortium standardizes web service interfaces and data encodings which can be used as building blocks for a Sensor Web. This article illustrates and analyzes the recent developments of the new generation of the Sensor Web Enablement specification framework. Further, we relate the Sensor Web to other emerging concepts such as the Web of Things and point out challenges and resulting future work topics for research on Sensor Web Enablement. PMID:22163760

  9. Critical Reading of the Web

    ERIC Educational Resources Information Center

    Griffin, Teresa; Cohen, Deb

    2012-01-01

    The ubiquity and familiarity of the world wide web means that students regularly turn to it as a source of information. In doing so, they "are said to rely heavily on simple search engines, such as Google to find what they want." Researchers have also investigated how students use search engines, concluding that "the young web users tended to…

  10. Semantic Web Grundlagen Birte Glimm

    E-print Network

    Pfeifer, Holger

    Semantic Web Grundlagen Birte Glimm Institut f¨ur K¨unstliche Intelligenz | 21. Nov 2011 OWL & Beschreibungslogiken #12;2/46 Birte Glimm | Semantic Web Grundlagen | 21. Nov 2011 Organisatorisches: Inhalt Einleitung ¨Ubung 1 3. Nov SPARQL Entailment 12. Jan Semantik von RDF(S) 7. Nov SPARQL Implemetierung 16. Jan RDF

  11. Semantic Web Grundlagen Birte Glimm

    E-print Network

    Pfeifer, Holger

    Semantic Web Grundlagen Birte Glimm Institut für Künstliche Intelligenz | 28. Nov 2011 Tableau Prozeduren #12;2/37 Birte Glimm | Semantic Web Grundlagen | 28. Nov 2011 Organisatorisches: Inhalt Einleitung 5 9. Jan Übung 1 3. Nov SPARQL Entailment 12. Jan Semantik von RDF(S) 7. Nov SPARQL Implemetierung

  12. Web Apollo: a web-based genomic annotation editing platform

    PubMed Central

    2013-01-01

    Web Apollo is the first instantaneous, collaborative genomic annotation editor available on the web. One of the natural consequences following from current advances in sequencing technology is that there are more and more researchers sequencing new genomes. These researchers require tools to describe the functional features of their newly sequenced genomes. With Web Apollo researchers can use any of the common browsers (for example, Chrome or Firefox) to jointly analyze and precisely describe the features of a genome in real time, whether they are in the same room or working from opposite sides of the world. PMID:24000942

  13. Image Calibration

    NASA Technical Reports Server (NTRS)

    Peay, Christopher S.; Palacios, David M.

    2011-01-01

    Calibrate_Image calibrates images obtained from focal plane arrays so that the output image more accurately represents the observed scene. The function takes as input a degraded image along with a flat field image and a dark frame image produced by the focal plane array and outputs a corrected image. The three most prominent sources of image degradation are corrected for: dark current accumulation, gain non-uniformity across the focal plane array, and hot and/or dead pixels in the array. In the corrected output image the dark current is subtracted, the gain variation is equalized, and values for hot and dead pixels are estimated, using bicubic interpolation techniques.

  14. Enhancing Data Interoperability with Web Services

    NASA Astrophysics Data System (ADS)

    Shrestha, S. R.; Zimble, D. A.; Wang, W.; Herring, D.; Halpert, M.

    2014-12-01

    In an effort to improve data access and interoperability of climate and weather data, the National Oceanic and Atmospheric Administration's (NOAA) Climate.gov and Climate Prediction Center (CPC) are exploring various platform solutions to enhance a user's ability to locate, preview, and acquire the data. The Climate.gov and CPC data team faces multiple challenges including the various kinds of data and formats, inconsistency of metadata records, variety of data service implementations, very large volumes of data and geographically distributed locations. We have created the Data Access and Interoperability project to design a web-based platform, where interoperability between systems can be leveraged to allow greater data discovery, access, visualization and delivery. In the interoperable data platform, systems can integrate with each other to support the synthesis of climate and weather data. Interoperability is the ability for users to discover the available climate and weather data, preview and interact with the data, and acquire the data in common digital formats through a simple web-based interface. The goal of the interoperable data platform is to leverage existing web services, implement the established standards and integrate with existing solutions across the earth sciences domain instead of creating new technologies. Towards this effort to improve the interoperability of the platform, we are collaborating with ESRI Inc. to provide climate and weather data via web services. In this presentation, we will discuss and demonstrate how to use ArcGIS to author RESTful based scientific web services using open standards. These web services are able to encapsulate the logic required to handle and describe scientific data through a variety of service types including, image, map, feature, geoprocessing, and their respective service methods. Combining these types of services and leveraging well-documented APIs, including the ArcGIS JavaScript API, we can afford to focus our attention on the design and development of user-friendly maps and apps. As a use case scenario, we will demonstrate the maps and apps that we developed as prototypes for CPC Climate Forecast System (CFSv2) products including Total Monthly Sea Ice Concentration that were built to improve the user's overall experience.

  15. Ur/Web: A Simple Model for Programming the Web

    E-print Network

    Chlipala, Adam

    The World Wide Web has evolved gradually from a document delivery platform to an architecture for distributed programming. This largely unplanned evolution is apparent in the set of interconnected languages and protocols ...

  16. Finding Bugs In Dynamic Web Applications

    E-print Network

    Artzi, Shay

    2008-02-06

    Web script crashes and malformed dynamically-generated web pages are common errors, and they seriously impact usability of web applications. Currenttools for web-page validation cannot handle the dynamically-generatedpages ...

  17. Modeling Web Interactions Paul Graunke (Northeastern University),

    E-print Network

    Tobin-Hochstadt, Sam

    Modeling Web Interactions Paul Graunke (Northeastern University), Robert Bruce Findler (University) Abstract. Programmers confront a minefield when they design interactive Web programs. Web interactions take place via Web browsers. With browsers, con- sumers can whimsically navigate among the various stages

  18. Seeing Cells on the Web

    ERIC Educational Resources Information Center

    Liu, Dennis

    2007-01-01

    Cells are the fundamental unit of life and disease; therefore, many avenues of research converge on cells, making images of cells prominent in research and teaching. Much of the progress of modern biomedical science can be tied to advances in our ability to better visualize the functional morphology of cells, including higher resolution imaging,…

  19. The Web as an API.

    SciTech Connect

    Roman, J. H.

    2001-01-01

    As programmers we have worked with many Application Development Interface API development kits. They are well suited for interaction with a particular system. A vast source of information can be made accessible by using the http protocol through the web as an API. This setup has many advantages including the vast knowledge available on setting web servers and services. Also, these tools are available on most hardware and operating system combinations. In this paper I will cover the various types of systems that can be developed this way, their advantages and some drawbacks of this approach. Index Terms--Application Programmer Interface, Distributed applications, Hyper Text Transfer Protocol, Web.

  20. RESTful Web Services at BNL

    SciTech Connect

    Casella, R.

    2011-06-14

    RESTful (REpresentational State Transfer) web services are an alternative implementation to SOAP/RPC web services in a client/server model. BNLs IT Division has started deploying RESTful Web Services for enterprise data retrieval and manipulation. Data is currently used by system administrators for tracking configuration information and as it is expanded will be used by Cyber Security for vulnerability management and as an aid to cyber investigations. This talk will describe the implementation and outstanding issues as well as some of the reasons for choosing RESTful over SOAP/RPC and future directions.

  1. Imaging medical imaging

    NASA Astrophysics Data System (ADS)

    Journeau, P.

    2015-03-01

    This paper presents progress on imaging the research field of Imaging Informatics, mapped as the clustering of its communities together with their main results by applying a process to produce a dynamical image of the interactions between their results and their common object(s) of research. The basic side draws from a fundamental research on the concept of dimensions and projective space spanning several streams of research about three-dimensional perceptivity and re-cognition and on their relation and reduction to spatial dimensionality. The application results in an N-dimensional mapping in Bio-Medical Imaging, with dimensions such as inflammatory activity, MRI acquisition sequencing, spatial resolution (voxel size), spatiotemporal dimension inferred, toxicity, depth penetration, sensitivity, temporal resolution, wave length, imaging duration, etc. Each field is represented through the projection of papers' and projects' `discriminating' quantitative results onto the specific N-dimensional hypercube of relevant measurement axes, such as listed above and before reduction. Past published differentiating results are represented as red stars, achieved unpublished results as purple spots and projects at diverse progress advancement levels as blue pie slices. The goal of the mapping is to show the dynamics of the trajectories of the field in its own experimental frame and their direction, speed and other characteristics. We conclude with an invitation to participate and show a sample mapping of the dynamics of the community and a tentative predictive model from community contribution.

  2. Tiny images

    E-print Network

    Torralba, Antonio

    2007-04-23

    The human visual system is remarkably tolerant to degradations in image resolution: in a scene recognition task, human performance is similar whether $32 \\times 32$ color images or multi-mega pixel images are used. With ...

  3. Image Gallery

    MedlinePLUS

    ... Accredited Practices EER Endowment for Education & Research Journal Image Gallery Click each image to enlarge. Fetal nose/lips Fetal nose, upper ... in the third trimester of pregnancy; the ultrasound image shows the chest of each fetus with the ...

  4. AIFdb: Infrastructure for the Argument Web

    E-print Network

    Reed, Chris

    AIFdb: Infrastructure for the Argument Web John LAWRENCE, Floris BEX, Chris REED and Mark SNAITH, a database solution for the Ar- gument Web. AIFdb offers an array of web service interfaces allowing a wide Interchange Format, argument web 1. Introduction The Argument Web [3] is a vision for a large-scale Web

  5. Context Representation for Web Search Results

    E-print Network

    Baeza-Yates, Ricardo

    Context Representation for Web Search Results Jesús Vegas Department of Computer Science U. Valladolid Context Representation for Web Search Results 2 Outline Intro Web search results in the web site and Future work #12;Context Representation for Web Search Results 3 Introduction Searching the web is one

  6. Web Usage, Advertising, and Shopping: Relationship Patterns.

    ERIC Educational Resources Information Center

    Korgaonkar, Pradeep; Wolin, Lori D.

    2002-01-01

    Discusses Web sales and explores the differences between heavy, medium, and light Web users in terms of their beliefs about Web advertising, attitudes toward Web advertising, purchasing patterns, and demographics. Suggests marketers need to target Web advertising to particular Web users. (Author/LRW)

  7. Web Team Forum 27 August 2014

    E-print Network

    Hickman, Mark

    18/09/2014 1 Web Team Forum 27 August 2014 · Web Team Update · WCMS Update (Perrine Baker, WCMS Web Team Update · http://www.canterbury.ac.nz/web/ · When was the last time you visited the Web Team site: ­ August 2014? ­ May, June, July 2014? ­ 1st half of 2014? ­ 2013? ­ Never? Web Team website

  8. Image Visualization Medical Image Processing

    E-print Network

    Wu, Xiaolin

    Image Visualization ENG4BF3 Medical Image Processing #12;2 Visualization Methods · Visualization of medical images is for the determination of the quantitative information about the properties of anatomic types) #12;3 Two-dimensional Image Generation and Visualization · The utility of 2D images depends

  9. Social Web and Knowledge Management

    NASA Astrophysics Data System (ADS)

    Dolog, Peter; Krötzsch, Markus; Schaffert, Sebastian; Vrande?i?, Denny

    Knowledge Management is the study and practice of representing, communicating, organizing, and applying knowledge in organizations. Moreover, being used by organizations, it is inherently social. The Web, as a medium, enables new forms of communications and interactions and requires new ways to represent knowledge assets. It is therefore obvious that the Web will influence and change Knowledge Management, but it is very unclear what the impact of these changes will be. This chapter raises questions and discusses visions in the area that connects the Social Web and Knowledge Management - an area of research that is only just emerging. The World Wide Web conference 2008 in Beijing hosted a workshop on that question, bringing together researchers and practitioners to gain first insights toward answering questions of that area.

  10. Semantic Web Grundlagen Birte Glimm

    E-print Network

    Pfeifer, Holger

    Berlin LAAS- CNRS Buda- pest BME IEEE IBM Resex Pisa New- castle RAE 2001 CiteSeer ACM DBLP RKB Explorer eprints LIBRIS Semantic Web.org Eurécom RKB ECS South- ampton CORDIS ReSIST Project Wiki National Science

  11. Can We Fix The Web?

    PubMed

    Kolar, Irena; Whitney, Gill

    2015-01-01

    This paper reports on an innovative approach to facilitating the expedient reporting of web accessibility issues using volunteers. The aim of the Fix the Web website and project is not to replace existing formal methods of reporting inaccessible websites, but to provide an easy, informal way by which users with disabilities can report inaccessible websites quickly and can be assured that a volunteer on their behalf will take the issue up with the website owner or administrator. Fix the Web was launched in 2010 and from a small start has gone onto success in dealing with nearly 150 inaccessible websites. The results of an analysis of reports of inaccessible websites received by the Fix the Web are also presented and the practical benefits and limitations of using an informal approach to achieve accessibility are discussed. PMID:26294463

  12. New web technologies for astronomy

    NASA Astrophysics Data System (ADS)

    Sprimont, P.-G.; Ricci, D.; Nicastro, L.

    2014-12-01

    Thanks to the new HTML5 capabilities and the huge improvements of the JavaScript language, it is now possible to design very complex and interactive web user interfaces. On top of that, the once monolithic and file-server oriented web servers are evolving into easily programmable server applications capable to cope with the complex interactions made possible by the new generation of browsers. We believe that the whole community of amateur and professionals astronomers can benefit from the potential of these new technologies. New web interfaces can be designed to provide the user with a large deal of much more intuitive and interactive tools. Accessing astronomical data archives, schedule, control and monitor observatories, and in particular robotic telescopes, supervising data reduction pipelines, all are capabilities that can now be implemented in a JavaScript web application. In this paper we describe the Sadira package we are implementing exactly to this aim.

  13. Digital Imaging

    NASA Technical Reports Server (NTRS)

    1986-01-01

    Digital Imaging is the computer processed numerical representation of physical images. Enhancement of images results in easier interpretation. Quantitative digital image analysis by Perceptive Scientific Instruments, locates objects within an image and measures them to extract quantitative information. Applications are CAT scanners, radiography, microscopy in medicine as well as various industrial and manufacturing uses. The PSICOM 327 performs all digital image analysis functions. It is based on Jet Propulsion Laboratory technology, is accurate and cost efficient.

  14. Mashups over the Deep Web

    NASA Astrophysics Data System (ADS)

    Hornung, Thomas; Simon, Kai; Lausen, Georg

    Combining information from different Web sources often results in a tedious and repetitive process, e.g. even simple information requests might require to iterate over a result list of one Web query and use each single result as input for a subsequent query. One approach for this chained queries are data-centric mashups, which allow to visually model the data flow as a graph, where the nodes represent the data source and the edges the data flow.

  15. NASA and The Semantic Web

    NASA Technical Reports Server (NTRS)

    Ashish, Naveen

    2005-01-01

    We provide an overview of several ongoing NASA endeavors based on concepts, systems, and technology from the Semantic Web arena. Indeed NASA has been one of the early adopters of Semantic Web Technology and we describe ongoing and completed R&D efforts for several applications ranging from collaborative systems to airspace information management to enterprise search to scientific information gathering and discovery systems at NASA.

  16. A Web-Based Video Digitizing System for the Study of Projectile Motion.

    ERIC Educational Resources Information Center

    Chow, John W.; Carlton, Les G.; Ekkekakis, Panteleimon; Hay, James G.

    2000-01-01

    Discusses advantages of a video-based, digitized image system for the study and analysis of projectile motion in the physics laboratory. Describes the implementation of a web-based digitized video system. (WRM)

  17. Semantics for Biological Data Resource: Cell Image Database

    National Institute of Standards and Technology Data Gateway

    SRD 165 NIST Semantics for Biological Data Resource: Cell Image Database (Web, free access)   This Database is a prototype to test concepts for semantic searching of cell image data based on experimental details.

  18. IDeixis : image-based deixis for recognizing locations

    E-print Network

    Yeh, Pei-Hsiu, 1978-

    2004-01-01

    In this thesis, we describe an approach to recognizing location from camera-equipped mobile devices using image-based web search. This is an image-based deixis capable of pointing at a distant location away from the user's ...

  19. Social image quality

    NASA Astrophysics Data System (ADS)

    Qiu, Guoping; Kheiri, Ahmed

    2011-01-01

    Current subjective image quality assessments have been developed in the laboratory environments, under controlledconditions, and are dependent on the participation of limited numbers of observers. In this research, with the help of Web 2.0 and social media technology, a new method for building a subjective image quality metric has been developed where the observers are the Internet users. A website with a simple user interface that enables Internet users from anywhere at any time to vote for a better quality version of a pair of the same image has been constructed. Users' votes are recorded and used to rank the images according to their perceived visual qualities. We have developed three rank aggregation algorithms to process the recorded pair comparison data, the first uses a naive approach, the second employs a Condorcet method, and the third uses the Dykstra's extension of Bradley-Terry method. The website has been collecting data for about three months and has accumulated over 10,000 votes at the time of writing this paper. Results show that the Internet and its allied technologies such as crowdsourcing offer a promising new paradigm for image and video quality assessment where hundreds of thousands of Internet users can contribute to building more robust image quality metrics. We have made Internet user generated social image quality (SIQ) data of a public image database available online (http://www.hdri.cs.nott.ac.uk/siq/) to provide the image quality research community with a new source of ground truth data. The website continues to collect votes and will include more public image databases and will also be extended to include videos to collect social video quality (SVQ) data. All data will be public available on the website in due course.

  20. WebAlchemist: a Web transcoding system for mobile Web access in handheld devices

    NASA Astrophysics Data System (ADS)

    Whang, Yonghyun; Jung, Changwoo; Kim, Jihong; Chung, Sungkwon

    2001-11-01

    In this paper, we describe the design and implementation of WebAlchemist, a prototype web transcoding system, which automatically converts a given HTML page into a sequence of equivalent HTML pages that can be properly displayed on a hand-held device. The Web/Alchemist system is based on a set of HTML transcoding heuristics managed by the Transcoding Manager (TM) module. In order to tackle difficult-to-transcode pages such as ones with large or complex table structures, we have developed several new transcoding heuristics that extract partial semantics from syntactic information such as the table width, font size and cascading style sheet. Subjective evaluation results using popular HTML pages (such as the CNN home page) show that WebAlchemist generates readable, structure-preserving transcoded pages, which can be properly displayed on hand-held devices.