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1

The IGM Project: Searching For IGM Emission Over 0CWI  

Microsoft Academic Search

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

Christopher D. Martin; M. Matuszewski; S. Rahman; P. Morrissey; A. Moore; D. Schiminovich; B. Milliard; S. Frank; J. Deharveng; C. Peroux

2011-01-01

2

Web Mining for Web Image Retrieval.  

ERIC Educational Resources Information Center

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)

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

2001-01-01

3

Image Searching across the Web.  

ERIC Educational Resources Information Center

Discusses how to find digital images on the Web. Considers images and copyright; provides an overview of the search capabilities of six search engines, including AltaVista, Google, AllTheWeb.com, Ditto.com, Picsearch, and Lycos; and describes specialized image search engines. (LRW)

Pack, Thomas

2002-01-01

4

Intelligent web image retrieval system  

NASA Astrophysics Data System (ADS)

Recently, the web sites such as e-business sites and shopping mall sites deal with lots of image information. To find a specific image from these image sources, we usually use web search engines or image database engines which rely on keyword only retrievals or color based retrievals with limited search capabilities. This paper presents an intelligent web image retrieval system. We propose the system architecture, the texture and color based image classification and indexing techniques, and representation schemes of user usage patterns. The query can be given by providing keywords, by selecting one or more sample texture patterns, by assigning color values within positional color blocks, or by combining some or all of these factors. The system keeps track of user's preferences by generating user query logs and automatically add more search information to subsequent user queries. To show the usefulness of the proposed system, some experimental results showing recall and precision are also explained.

Hong, Sungyong; Lee, Chungwoo; Nah, Yunmook

2001-07-01

5

World Wide Web Image Search Engines  

Microsoft Academic Search

We propose the development of a world wide web image search engine that crawls the web collecting information about the images it finds, computes the appropriate image decompositions and indices, and stores this extracted infor- mation for searches based on image content. Indexing and searching images need not require solving the image under- standing problem. Instead, the general approach should

Stan Sclaroff

1995-01-01

6

National Child and Youth Well-Being Index (CWI), 2012  

ERIC Educational Resources Information Center

Each year, the Foundation for Child Development (FCD) and the Child and Youth Well-Being Index Project at Duke University issue a comprehensive measure of how children are faring in the United States. The resultant NATIONAL Child and Youth Well-Being Index (CWI) is based on a composite of "28 Key Indicators of well-being that are grouped into…

Foundation for Child Development, 2012

2012-01-01

7

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

PubMed

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

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

8

Web Image Gathering with Probabilistic Models  

NASA Astrophysics Data System (ADS)

We propose a novel probabilistic image selection method for the Web image gathering system we proposed before. It employed two-step processing: (1) Gather HTML files of Web pages related to given keywords, analyze them and fetch only Web images expected to be highly related to the keywords. (2) Select only relevant images from the gathered images based on the image-feature-based clustering. In this paper, we propose building a generative model based on the Gaussian mixture model to represent the distribution of image features of images related to the given keywords, and applying it to select images instead of the processing (2). We call the new system ``Probabilistic Image Collector''. We show the effectiveness of our proposed system by the experimental results.

Yanai, Keiji

9

Numerical simulation of experimental carbonated water injection (CWI) for improved oil recovery and CO 2 storage  

Microsoft Academic Search

Carbonated water injection (CWI) is a CO2-augmented waterflooding technique for improving oil recovery and CO2 storage. The oil recovery and CO2 storage benefits of CWI as compared to plain (conventional) waterflood in secondary and tertiary recovery modes were investigated experimentally and numerically through a series of coreflood experiments and detailed compositional simulation. A reservoir core, stock tank crude oil and

Nor Idah Kechut; Mahmoud Jamiolahmady; Mehran Sohrabi

2011-01-01

10

Images on the Web for Astronomy Teaching: Image Repositories  

NASA Astrophysics Data System (ADS)

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.

Fraknoi, Andrew

11

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

NASA Astrophysics Data System (ADS)

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.

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

2013-01-01

12

Web tools to support image classification  

NASA Astrophysics Data System (ADS)

Content-based image classification is a wide research field addressing the problem of categorizing images according to their content. A common way to approach content-based classification is through learning from examples --- a given class of images is described by means of a suitable training set of data. The main drawback of this approach is the fact that collecting data to build homogeneous training and validation sets is a boring and time consuming task, even if the Web can help providing a potentially inexhaustible source of images. In this paper we present a system to automatically download images from the Web and a selection of techniques useful to prune the images downloaded according to some criteria. These techniques work as filters at various degrees of complexity: some are simple measurements other are image classifiers themselves. We focus on two critical ones (monochrome vs color images and photos vs graphics) showing their effectiveness on a manually labeled validation set of data. We conclude the paper analyzing the overall performance of the system with an a posteriori analysis of the results obtained in a few run.

Odone, F.; Barla, A.; Franceschi, E.; Verri, A.

2004-12-01

13

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)

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.

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

2014-05-01

14

Web-based distributed image processing system  

NASA Astrophysics Data System (ADS)

This paper presents a framework for developing a Web-based distributed image processing application system that is flexible, convenient, and scalable. The system uses the existing Web-based technology and image processing methodologies to implement this capability in a distributed computing environment that may include powerful machines to process complex and large images. The system consists of browser, server, service registry and task scheduler, image data storage and management, and knowledge-based image processing services. A server-side application considers the user"s request from a client side. The server host identifies the request and the necessary resources and schedules the computing resources and image processing services. Based on the instructions of the developer"s side (the service provider) a proper knowledge-based on-line assistance is given to the client to select the right algorithm, set up proper parameter values in order to maximize the usage. Developers can modify and upgrade the services at their own site and publish the workable version, its interface, and required resources to the server. The server enables remote invocation of the algorithm by providing a seamless and efficient linkage mechanism. An application for segmentation operation using deformable contour methods for complex images is provided as an example.

Han, Chia Y.; Chen, Hong; He, Lei; Wee, William G.

2003-01-01

15

WebSeer: A n Image Search Engine for the World Wide Web  

Microsoft Academic Search

Because of the size of the World Wide Web and its inherentlack of structure, finding what one is looking for can bea challenge. In fact, some of the most highly visited Websites are search engines. However, while Web pages typicallycontain both text and images, most currently availablesearch engines only index text. This paper describesWebSeer, a system for locating images on

J. Swain

1997-01-01

16

Image and Video Search Engine for the World Wide Web  

Microsoft Academic Search

We describe a visual information system prototype for searching for images and videos on the WorldWide Web. New visual information in the form of images, graphics, animations and videos is being published on the Web at an incredible rate. However, cataloging this visual data is beyond the capabilities of current text-based Web search engines. In this paper, we describe a

John R. Smith; Shih-Fu Chang

1997-01-01

17

Web-based document image processing  

NASA Astrophysics Data System (ADS)

Increasing numbers of research libraries are turning to the Internet for electron interlibrary loan and for document delivery to patrons. This has been made possible through the widespread adoption of software such as Ariel and DocView. Ariel, a product of the Research Libraries Group, converts paper-based documents to monochrome bitmapped images, and delivers them over the Internet. The National Library of Medicine's DocView is primarily designed for library patrons are beginning to reap the benefits of this new technology, barriers exist, e.g., differences in image file format, that lead to difficulties in the use of library document information. To research how to overcome such barriers, the Communications Engineering Branch of the Lister Hill National Center for Biomedical Communications, an R and D division of NLM, has developed a web site called the DocMorph Server. This is part of an ongoing intramural R and D program in document imaging that has spanned many aspects of electronic document conversion and preservation, Internet document transmission and document usage. The DocMorph Server Web site is designed to fill two roles. First, in a role that will benefit both libraries and their patrons, it allows Internet users to upload scanned image files for conversion to alternative formats, thereby enabling wider delivery and easier usage of library document information. Second, the DocMorph Server provides the design team an active test bed for evaluating the effectiveness and utility of new document image processing algorithms and functions, so that they may be evaluated for possible inclusion in other image processing software products being developed at NLM or elsewhere. This paper describes the design of the prototype DocMorph Server and the image processing functions being implemented on it.

Walker, Frank L.; Thoma, George R.

1999-12-01

18

WebSeer: An Image Search Engine for the World Wide Web1  

Microsoft Academic Search

Because of the size of the World Wide Web and its inherent lack of structure, finding what one is looking for can be a challenge. PC-Meter's March, 1996, survey found that three of the five most visited Web sites were search engines. However, while Web pages typically contain both text and images, all the currently available search engines only index

Charles Frankel; Michael J. Swain; Vassilis Athitsos

1996-01-01

19

Architecture for web-based image processing  

NASA Astrophysics Data System (ADS)

A computer systems architecture for processing medical images and other data coming over the Web is proposed. The architecture comprises a Java engine for communicating images over the Internet, storing data in local memory, doing floating point calculations, and a coprocessor MIMD parallel DSP for doing fine-grained operations found in video, graphics, and image processing applications. The local memory is shared between the Java engine and the parallel DSP. Data coming from the Web is stored in the local memory. This approach avoids the frequent movement of image data between a host processor's memory and an image processor's memory, found in many image processing systems. A low-power and high performance parallel DSP architecture containing lots of processors interconnected by a segmented hierarchical network has been developed. The instruction set of the 16-bit processor supports video, graphics, and image processing calculations. Two's complement arithmetic, saturation arithmetic, and packed instructions are supported. Higher data precision such as 32-bit and 64-bit can be achieved by cascading processors. A VLSI chip implementation of the architecture containing 64 processors organized in 16 clusters and interconnected by a statically programmable hierarchical bus is in progress. The buses are segmentable by programming switches on the bus. The instruction memory of each processor has sixteen 40-bit words. Data streaming through the processor is manipulated by the instructions. Multiple operations can be performed in a single cycle in a processor. A low-power handshake protocol is used for synchronization between the sender and the receiver of data. Temporary storage for data and filter coefficients is provided in each chip. A 256 by 16 memory unit is included in each of the 16 clusters. The memory unit can be used as a delay line, FIFO, lookup table or random access memory. The architecture is scalable with technology. Portable multimedia terminals like U.C. Berkeley's InfoPad can be developed using the proposed parallel DSP architecture, color display, pen interface, and wireless network communication for use in clinics, hospitals, homes, offices, and factories.

Srini, Vason P.; Pini, David; Armstrong, Matt D.; Alalusi, Sayf H.; Thendean, John; Ueng, Sain-Zee; Bushong, David P.; Borowski, Erek S.; Chao, Elaine; Rabaey, Jan M.

1997-09-01

20

Image Browsing and Natural Language Paraphrases of Semantic Web Annotations.  

National Technical Information Service (NTIS)

Recently, there has been interest in marking up digital images with annotations describing the content of the images using Web-based ontologies encoded in the W3C's Web Ontology Language (OWL). The annotations are subsequently exploited to improve the use...

C. Halaschek-Wiener J. Golbeck B. Parsia V. Kolovski J. Hendler

2006-01-01

21

Detection of near-duplicate images for web search  

Microsoft Academic Search

Among the vast numbers of images on the web are many du- plicates and near-duplicates, that is, variants derived from the same original image. Such near-duplicates appear in many web image searches and may represent infringements of copyright or indicate the presence of redundancy. While methods for identifying near-duplicates have been investi- gated, there has been no analysis of the

Jun Jie Foo; Justin Zobel; Ranjan Sinha; Seyed M. M. Tahaghoghi

2007-01-01

22

Image retrieval from the web using multiple features  

Microsoft Academic Search

Purpose – The main obstacle in realising semantic-based image retrieval from the web is that it is difficult to capture semantic description of an image in low-level features. Text-based keywords can be generated from web documents to capture semantic information for narrowing down the search space. The combination of keywords and various low-level features effectively increases the retrieval precision. The

A. Vadivel; Shamik Sural; Arun K. Majumdar

2009-01-01

23

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

NASA Astrophysics Data System (ADS)

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.

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

2011-03-01

24

Optimisation of biotransformation conditions for production of 2-phenylethanol by a Saccharomyces cerevisiae CWY132 mutant  

Microsoft Academic Search

A mutant Saccharomyces cerevisiae CWY132 was isolated, producing 1.393?g?L 2-phenylethanol (2-PE) in a batch process containing 5?g?L L-phenylalanine (L-Phe), which is equivalent to an increase of 38.3% compared to the initial strain. In this study, biotransformation conditions of this strain were studied. We found glucose, KH2PO4, (NH4)2SO4, and amounts of inoculum cells had significant effects on the biotransformation process; in

Zhifeng Cui; Xiao Yang; Qingjia Shen; Kun Wang; Tingheng Zhu

2011-01-01

25

SIP: A Web-Based Astronomical Image Processing Program  

NASA Astrophysics Data System (ADS)

I have written an astronomical image processing and analysis program designed to run over the internet in a Java-compatible web browser. The program, Sky Image Processor (SIP), is accessible at the SIP webpage (http://www.phys.vt.edu/SIP). Since nothing is installed on the user's machine, there is no need to download upgrades; the latest version of the program is always instantly available. Furthermore, the Java programming language is designed to work on any computer platform (any machine and operating system). The program could be used with students in web-based instruction or in a computer laboratory setting; it may also be of use in some research or outreach applications. While SIP is similar to other image processing programs, it is unique in some important respects. For example, SIP can load images from the user's machine or from the Web. An instructor can put images on a web server for students to load and analyze on their own personal computer. Or, the instructor can inform the students of images to load from any other web server. Furthermore, since SIP was written with students in mind, the philosophy is to present the user with the most basic tools necessary to process and analyze astronomical images. Images can be combined (by addition, subtraction, multiplication, or division), multiplied by a constant, smoothed, cropped, flipped, rotated, and so on. Statistics can be gathered for pixels within a box drawn by the user. Basic tools are available for gathering data from an image which can be used for performing simple differential photometry, or astrometry. Therefore, students can learn how astronomical image processing works. Since SIP is not part of a commercial CCD camera package, the program is written to handle the most common denominator image file, the FITS format.

Simonetti, J. H.

1999-12-01

26

Complex Image Recognition and Web Security  

Microsoft Academic Search

Web services offered for human use are being abused by programs. Efforts to defend against these abuses have, over the last 5 years, stimulated the development of a new family of security protocols able to distinguish between human and machine users automatically over graphical user interfaces (GUIs) and networks. AltaVista pioneered this technology in 1997; by 2000, Yahoo! and PayPal

Henry S. Baird

27

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

Microsoft Academic Search

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

Bin Tan; Kuangyi Chen; Xichuan Zheng; Jianguo Zhang

2011-01-01

28

Enterprise-scale image distribution with a Web PACS.  

PubMed

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

Gropper, A; Doyle, S; Dreyer, K

1998-08-01

29

Web interface for image processing algorithms  

NASA Astrophysics Data System (ADS)

In this contribution we present an interface for image processing algorithms that has been made recently available on the Internet (http://nibbler.uni-koblenz.de). First, we show its usefulness compared to some other existing products. After a description of its architecture, its main features are then presented: the particularity of the user management, its image database, its interface, and its original quarantine system. We finally present the result of an evaluation performed by students in image processing.

Chastel, Serge; Schwab, Guido; Paulus, Dietrich

2003-12-01

30

Adaptation of web pages and images for mobile applications  

NASA Astrophysics Data System (ADS)

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.

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

2009-02-01

31

Radar Images of the Earth and the World Wide Web  

NASA Technical Reports Server (NTRS)

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.

Chapman, B.; Freeman, A.

1995-01-01

32

Thin client (web browser)-based collaboration for medical imaging and web-enabled data.  

PubMed

Utilizing thin client software and open source server technology, a collaborative architecture was implemented allowing for sharing of Digital Imaging and Communications in Medicine (DICOM) and non-DICOM images with real-time markup. Using the Web browser as a thin client integrated with standards-based components, such as DHTML (dynamic hypertext markup language), JavaScript, and Java, collaboration was achieved through a Web server/proxy server combination utilizing Java Servlets and Java Server Pages. A typical collaborative session involved the driver, who directed the navigation of the other collaborators, the passengers, and provided collaborative markups of medical and nonmedical images. The majority of processing was performed on the server side, allowing for the client to remain thin and more accessible. PMID:12105747

Le, Tuong Huu; Malhi, Nadeem

2002-01-01

33

Web - \\  

Microsoft Academic Search

Web matured from Web to Web 2.0; contents and services matured from static content to dynamic contents; streaming, voice over IP, instant messaging, forums, blogs, commerce, payments, and lifestyle based actionable information. In access methods, we saw maturity from classical Web to Wireless Web to Mobile Web. Web is used in the advanced economies today for \\

Asoke K Talukder

2007-01-01

34

A Conceptual Approach to Web Image Retrieval  

Microsoft Academic Search

People use the Internet to find a wide variety of i mages. Existing image search engines do not understand the pictures they return. The introduction of semantic layers in information retr ieval frameworks may enhance the quality of the res ults compared to existing systems. One important challenge in the field is to develop architectures that fit the requirements of

Adrian Popescu; Gregory Grefenstette

2008-01-01

35

Actions in Still Web Images: Visualization, Detection and Retrieval  

Microsoft Academic Search

\\u000a We describe a framework for human action retrieval in still web images by verb queries, for instance “phoning”. Firstly, we\\u000a build a group of visual discriminative instances for each action class, called “Exemplarlets”. Thereafter we employ Multiple\\u000a Kernel Learning (MKL) to learn an optimal combination of histogram intersection kernels, each of which captures a state-of-the-art\\u000a feature channel. Our features include

Piji Li; Jun Ma; Shuai Gao

36

Click prediction for web image reranking using multimodal sparse coding.  

PubMed

Image reranking is effective for improving the performance of a text-based image search. However, existing reranking algorithms are limited for two main reasons: 1) the textual meta-data associated with images is often mismatched with their actual visual content and 2) the extracted visual features do not accurately describe the semantic similarities between images. Recently, user click information has been used in image reranking, because clicks have been shown to more accurately describe the relevance of retrieved images to search queries. However, a critical problem for click-based methods is the lack of click data, since only a small number of web images have actually been clicked on by users. Therefore, we aim to solve this problem by predicting image clicks. We propose a multimodal hypergraph learning-based sparse coding method for image click prediction, and apply the obtained click data to the reranking of images. We adopt a hypergraph to build a group of manifolds, which explore the complementarity of different features through a group of weights. Unlike a graph that has an edge between two vertices, a hyperedge in a hypergraph connects a set of vertices, and helps preserve the local smoothness of the constructed sparse codes. An alternating optimization procedure is then performed, and the weights of different modalities and the sparse codes are simultaneously obtained. Finally, a voting strategy is used to describe the predicted click as a binary event (click or no click), from the images' corresponding sparse codes. Thorough empirical studies on a large-scale database including nearly 330 K images demonstrate the effectiveness of our approach for click prediction when compared with several other methods. Additional image reranking experiments on real-world data show the use of click prediction is beneficial to improving the performance of prominent graph-based image reranking algorithms. PMID:24710402

Yu, Jun; Rui, Yong; Tao, Dacheng

2014-05-01

37

World-Wide Web Tools for Locating Planetary Images  

NASA Technical Reports Server (NTRS)

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.

Kanefsky, Bob; Deiss, Ron (Technical Monitor)

1995-01-01

38

Web based tools for visualizing imaging data and development of XNATView, a zero footprint image viewer  

PubMed Central

Advances in web technologies now allow direct visualization of imaging data sets without necessitating the download of large file sets or the installation of software. This allows centralization of file storage and facilitates image review and analysis. XNATView is a light framework recently developed in our lab to visualize DICOM images stored in The Extensible Neuroimaging Archive Toolkit (XNAT). It consists of a PyXNAT-based framework to wrap around the REST application programming interface (API) and query the data in XNAT. XNATView was developed to simplify quality assurance, help organize imaging data, and facilitate data sharing for intra- and inter-laboratory collaborations. Its zero-footprint design allows the user to connect to XNAT from a web browser, navigate through projects, experiments, and subjects, and view DICOM images with accompanying metadata all within a single viewing instance.

Gutman, David A.; Dunn, William D.; Cobb, Jake; Stoner, Richard M.; Kalpathy-Cramer, Jayashree; Erickson, Bradley

2014-01-01

39

Web based tools for visualizing imaging data and development of XNATView, a zero footprint image viewer.  

PubMed

Advances in web technologies now allow direct visualization of imaging data sets without necessitating the download of large file sets or the installation of software. This allows centralization of file storage and facilitates image review and analysis. XNATView is a light framework recently developed in our lab to visualize DICOM images stored in The Extensible Neuroimaging Archive Toolkit (XNAT). It consists of a PyXNAT-based framework to wrap around the REST application programming interface (API) and query the data in XNAT. XNATView was developed to simplify quality assurance, help organize imaging data, and facilitate data sharing for intra- and inter-laboratory collaborations. Its zero-footprint design allows the user to connect to XNAT from a web browser, navigate through projects, experiments, and subjects, and view DICOM images with accompanying metadata all within a single viewing instance. PMID:24904399

Gutman, David A; Dunn, William D; Cobb, Jake; Stoner, Richard M; Kalpathy-Cramer, Jayashree; Erickson, Bradley

2014-01-01

40

Interactive query and visualization of medical images on the World Wide Web  

NASA Astrophysics Data System (ADS)

The World Wide Web (WWW) is becoming the predominant force for global information dissemination. The Web browsers are originally designed for the client computers to navigate and display hypermedia documents and image bitmaps stored at the server machines. Their capabilities must be extended with database query and interactive visualization before the Web could be useful for the medical imaging community. This paper presents the system design and tools for interactive query and visualization of medical images on the Web. Examples from breast and brain imaging applications are used to illustrate the operations and capabilities of such tools.

Wong, Stephen T. C.; Whaley, Pablo S.; Ang, Cheong S.; Hoo, Kent S., Jr.; Wang, Jun; Huang, H. K.

1996-04-01

41

A web-shareable real-world imaging problem for enhancing an image-processing curriculum  

Microsoft Academic Search

A real-world laboratory exercise is presented for image processing and related curricula. The exercise is a traffic-monitoring problem in which a truck must be tracked as it moves across a bridge and its velocity measured. Sequential images are taken from a dedicated Web camera that views the Smart Composite Bridge on the University of Missouri-Rolla campus. The prototype bridge is

R. Joe Stanley; Steve E. Watkins; Anand Gopal; Randy H. Moss

2004-01-01

42

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

NASA Astrophysics Data System (ADS)

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.

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

2014-05-01

43

Creating a Web-based image database for benchmarking image retrieval systems  

NASA Astrophysics Data System (ADS)

There is, at present, a critical need within image retrieval research for an image testbed which would enable the objective evaluation of different content-based search engines, indexing and metadata schemes, and search heuristics, as well as research and evaluation in image- based knowledge structures and system architectures, user's needs in image retrieval and the cognitive processes involved in image searching. This paper discusses a pilot project specifying and establishing a prototype testbed for the evaluation of image retrieval techniques. A feasibility study is underway focusing on the development of a large set of standardized test images accessible through a web interface, and researchers in the field are being surveyed for input. Areas being addressed in the feasibility study include technical specifications as well as content issues such as: which specific image domains to include; the useful proportion of imags belonging to specific domains to images belonging to a general 'world' domain; types of image attributes and baseline and 'advanced' levels of image description needed, and research needs to be accommodated, as well as development of a standardized set of test queries and the establishment of methods for 'truthing' the database and test queries.

Joergensen, Corinne; Srihari, Rohini K.

1999-05-01

44

Image retrieval ++ - web image retrieval with an enhanced multi-modality ontology  

Microsoft Academic Search

In this paper we present an enhanced multi-modality ontology-based approach for web image retrieval step by step. Several\\u000a ontology-based approaches have been made in the field of multimedia retrieval. Our multi-modality approach is one of the earliest\\u000a attempts to integrate information from different modalities and apply the model in a complex domain. In order to develop the\\u000a model, we need

Huan Wang; Liang-tien Chia; Song Liu

2008-01-01

45

Cortina: a system for large-scale, content-based web image retrieval  

Microsoft Academic Search

Recent advances in processing and networking capabilities of computers have led to an accumulation of immense amounts of multimedia data such as images. One of the largest repositories for such data is the World Wide Web (WWW). We present Cortina, a large-scale image retrieval system for the WWW. It handles over 3 million images to date. The system retrieves images

Till Quack; Ullrich Mönich; Lars Thiele; B. S. Manjunath

2004-01-01

46

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

ERIC Educational Resources Information Center

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…

Kim, Deok-Hwan; Chung, Chin-Wan

2003-01-01

47

A web interface for 3D visualization and interactive segmentation of medical images  

Microsoft Academic Search

We propose a web-accessible image visualization and processing framework well-suited for medical applications. Exploiting client-side HTML5 and WebGL technologies, our proposal allows the end-user to efficiently browse and visualize volumic images in an Out-Of-Core (OOC) manner, annotate and apply server-side image processing algorithms and interactively visualize 3D medical models. Server-side implementation is driven by a file-based, simple, robust and flexible

Hector Jacinto; Razmig Kéchichian; Michel Desvignes; Rémy Prost; Sébastien Valette

2012-01-01

48

[Image] [Image] [Image] [Link] [Link] [Link]: Inaccessible Web Design from the Perspective of a Blind Librarian.  

ERIC Educational Resources Information Center

Discusses Web design accessibility from the perspective of a librarian who is legally blind. Explains problems encountered with the growing use of graphics as opposed to text-based sites and suggests steps that librarians can take to help make the Web more accessible. (LRW)

Lewis, Valerie; Klauber, Julie

2002-01-01

49

Robust image obfuscation for privacy protection in Web 2.0 applications  

NASA Astrophysics Data System (ADS)

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.

Poller, Andreas; Steinebach, Martin; Liu, Huajian

2012-02-01

50

Enhanced interfaces for web-based enterprise-wide image distribution.  

PubMed

Modern Web browsers support image distribution with two shortcomings: (1) image grayscale presentation at client workstations is often sub-optimal and generally inconsistent with the presentation state on diagnostic workstations and (2) an Electronic Patient Record (EPR) application usually cannot directly access images with an integrated viewer. We have modified our EPR and our Web-based image-distribution system to allow access to images from within the EPR. In addition, at the client workstation, a grayscale transformation is performed that consists of two components: a client-display-specific component based on the characteristic display function of the class of display system, and a modality-specific transformation that is downloaded with every image. The described techniques have been implemented in our institution and currently support enterprise-wide clinical image distribution. The effectiveness of the techniques is reviewed. PMID:12105725

Jost, R Gilbert; Blaine, G James; Fritz, Kevin; Blume, Hartwig; Sadhra, Sarbjit

2002-01-01

51

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

ERIC Educational Resources Information Center

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…

Clyde, Stephen W.; Hirschi, Gregory W.

52

Scene Transition based on Image Registration for Web-based Virtual Tour  

Microsoft Academic Search

Web-based Virtual Tour has attractive advantages over traditional 3D rendering approach in that it does not require labor intensive 3D modeling process or high bandwidth for realistic virtual tour yet provides virtual tour with free navigation and immersive experience of walking around through the WWW. In this paper, we focus on presenting a robust image registration technique for a web-based

Ilmi Yoon

2005-01-01

53

Comparative evaluation of Web image search engines for multimedia applications  

Microsoft Academic Search

While text-oriented document searching are relatively mature on the Internet, image searching, which requires much more than text matching, significantly lags behind. The use of image search engines significantly enlarges the scope of images to users accessibility. This paper provides an understanding of current technologies in image searching on the Internet, and points to future areas of improvement for multimedia

Keon Stevenson; Clement Leung

2005-01-01

54

A web-based 3D medical image collaborative processing system with videoconference  

NASA Astrophysics Data System (ADS)

Three dimension medical images have been playing an irreplaceable role in realms of medical treatment, teaching, and research. However, collaborative processing and visualization of 3D medical images on Internet is still one of the biggest challenges to support these activities. Consequently, we present a new application approach for web-based synchronized collaborative processing and visualization of 3D medical Images. Meanwhile, a web-based videoconference function is provided to enhance the performance of the whole system. All the functions of the system can be available with common Web-browsers conveniently, without any extra requirement of client installation. In the end, this paper evaluates the prototype system using 3D medical data sets, which demonstrates the good performance of our system.

Luo, Sanbi; Han, Jun; Huang, Yonggang

2013-07-01

55

Improving Web Image Search by Bag-Based Reranking  

Microsoft Academic Search

Given a textual query in traditional text-based image retrieval (TBIR), relevant images are to be reranked using visual features after the initial text-based search. In this paper, we pro- pose a new bag-based reranking framework for large-scale TBIR. Specifically, we first cluster relevant images using both textual and visual features. By treating each cluster as a \\

Lixin Duan; Wen Li; Ivor Wai-Hung Tsang; Dong Xu

2011-01-01

56

Distribution of large volume image data using the mixed mode of Java Servlet and COM on Web  

Microsoft Academic Search

This paper reports some researches on distribution of large volume image data using techniques of the Mixed Mode of Java Servlet\\u000a and COM on Web. The architecture and key technologies are discussed in detail. The web distribution system of image is implemented\\u000a and the system is tested by the application instances. At last, the advantages and disadvantages for this web

Wang Mi; Zhu Xinyan; Pan Jun; Chen Nengcheng

2004-01-01

57

Ontology enhanced web image retrieval: aided by wikipedia & spreading activation theory  

Microsoft Academic Search

Ontology, as an eectiv e approach to bridge the semantic gap in various domains, has attracted a lot of interests from multimedia researchers. Among the numerous possibilities enabled by ontology, we are particularly interested in ex- ploiting ontology for a better understanding of media task (particularly, images) on the World Wide Web. To achieve our goal, two open issues are

Huan Wang; Xing Jiang; Liang-tien Chia; Ah-hwee Tan

2008-01-01

58

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

Microsoft Academic Search

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

Wang Juanle; Li Shuang; Zhu Yunqiang

2005-01-01

59

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

NASA Technical Reports Server (NTRS)

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.

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

1998-01-01

60

NUS-WIDE: a real-world web image database from National University of Singapore  

Microsoft Academic Search

This paper introduces a web image dataset created by NUS's Lab for Media Search. The dataset includes: (1) 269,648 im- ages and the associated tags from Flickr, with a total of 5,018 unique tags; (2) six types of low-level features extracted from these images, including 64-D color histogram, 144-D color correlogram, 73-D edge direction histogram, 128-D wavelet texture, 225-D block-wise

Tat-seng Chua; Jinhui Tang; Richang Hong; Haojie Li; Zhiping Luo; Yantao Zheng

2009-01-01

61

The landsat image mosaic of the Antarctica Web Portal  

USGS Publications Warehouse

People believe what they can see. The Poles exist as a frozen dream to most people. The International Polar Year wants to break the ice (so to speak), open up the Poles to the general public, support current polar research, and encourage new research projects. The IPY officially begins in March, 2007. As part of this effort, the U.S. Geological Survey (USGS) and the British Antarctic Survey (BAS), with funding from the National Science Foundation (NSF), are developing three Landsat mosaics of Antarctica and an Antarctic Web Portal with a Community site and an online map viewer. When scientists are able to view the entire scope of polar research, they will be better able to collaborate and locate the resources they need. When the general public more readily sees what is happening in the polar environments, they will understand how changes to the polar areas affect everyone.

Rusanowski, C. J.

2007-01-01

62

Web Based Rapid Mapping of Disaster Areas using Satellite Images, Web Processing Service, Web Mapping Service, Frequency Based Change Detection Algorithm and J-iView  

NASA Astrophysics Data System (ADS)

Timely identification of areas affected by natural disasters is very important for a successful rescue and effective emergency relief efforts. This research focuses on the development of a cost effective and efficient system of identifying areas affected by natural disasters, and the efficient distribution of the information. The developed system is composed of 3 modules which are the Web Processing Service (WPS), Web Map Service (WMS) and the user interface provided by J-iView (fig. 1). WPS is an online system that provides computation, storage and data access services. In this study, the WPS module provides online access of the software implementing the developed frequency based change detection algorithm for the identification of areas affected by natural disasters. It also sends requests to WMS servers to get the remotely sensed data to be used in the computation. WMS is a standard protocol that provides a simple HTTP interface for requesting geo-registered map images from one or more geospatial databases. In this research, the WMS component provides remote access of the satellite images which are used as inputs for land cover change detection. The user interface in this system is provided by J-iView, which is an online mapping system developed at the Geological Survey of Japan (GSJ). The 3 modules are seamlessly integrated into a single package using J-iView, which could rapidly generate a map of disaster areas that is instantaneously viewable online. The developed system was tested using ASTER images covering the areas damaged by the March 11, 2011 tsunami in northeastern Japan. The developed system efficiently generated a map showing areas devastated by the tsunami. Based on the initial results of the study, the developed system proved to be a useful tool for emergency workers to quickly identify areas affected by natural disasters.

Bandibas, J. C.; Takarada, S.

2013-12-01

63

Web and personal image annotation by mining label correlation with relaxed visual graph embedding.  

PubMed

The number of digital images rapidly increases, and it becomes an important challenge to organize these resources effectively. As a way to facilitate image categorization and retrieval, automatic image annotation has received much research attention. Considering that there are a great number of unlabeled images available, it is beneficial to develop an effective mechanism to leverage unlabeled images for large-scale image annotation. Meanwhile, a single image is usually associated with multiple labels, which are inherently correlated to each other. A straightforward method of image annotation is to decompose the problem into multiple independent single-label problems, but this ignores the underlying correlations among different labels. In this paper, we propose a new inductive algorithm for image annotation by integrating label correlation mining and visual similarity mining into a joint framework. We first construct a graph model according to image visual features. A multilabel classifier is then trained by simultaneously uncovering the shared structure common to different labels and the visual graph embedded label prediction matrix for image annotation. We show that the globally optimal solution of the proposed framework can be obtained by performing generalized eigen-decomposition. We apply the proposed framework to both web image annotation and personal album labeling using the NUS-WIDE, MSRA MM 2.0, and Kodak image data sets, and the AUC evaluation metric. Extensive experiments on large-scale image databases collected from the web and personal album show that the proposed algorithm is capable of utilizing both labeled and unlabeled data for image annotation and outperforms other algorithms. PMID:21947528

Yang, Yi; Wu, Fei; Nie, Feiping; Shen, Heng Tao; Zhuang, Yueting; Hauptmann, Alexander G

2012-03-01

64

A midas plugin to enable construction of reproducible web-based image processing pipelines  

PubMed Central

Image processing is an important quantitative technique for neuroscience researchers, but difficult for those who lack experience in the field. In this paper we present a web-based platform that allows an expert to create a brain image processing pipeline, enabling execution of that pipeline even by those biomedical researchers with limited image processing knowledge. These tools are implemented as a plugin for Midas, an open-source toolkit for creating web based scientific data storage and processing platforms. Using this plugin, an image processing expert can construct a pipeline, create a web-based User Interface, manage jobs, and visualize intermediate results. Pipelines are executed on a grid computing platform using BatchMake and HTCondor. This represents a new capability for biomedical researchers and offers an innovative platform for scientific collaboration. Current tools work well, but can be inaccessible for those lacking image processing expertise. Using this plugin, researchers in collaboration with image processing experts can create workflows with reasonable default settings and streamlined user interfaces, and data can be processed easily from a lab environment without the need for a powerful desktop computer. This platform allows simplified troubleshooting, centralized maintenance, and easy data sharing with collaborators. These capabilities enable reproducible science by sharing datasets and processing pipelines between collaborators. In this paper, we present a description of this innovative Midas plugin, along with results obtained from building and executing several ITK based image processing workflows for diffusion weighted MRI (DW MRI) of rodent brain images, as well as recommendations for building automated image processing pipelines. Although the particular image processing pipelines developed were focused on rodent brain MRI, the presented plugin can be used to support any executable or script-based pipeline.

Grauer, Michael; Reynolds, Patrick; Hoogstoel, Marion; Budin, Francois; Styner, Martin A.; Oguz, Ipek

2013-01-01

65

A web-based melanoma image diagnosis support system using topic map and AJAX technologies.  

PubMed

The design and implementation of a web-based diagnostic support tool for melanoma dermatological images and related diagnostic data is presented. The proposed system is semantic web-based and is driven by exploiting the combination of AJAX framework and topic map technology. A novel client/server architecture was developed that enables several clients to interact online with the topic map-based system. Users have the ability to access the system anywhere and anytime via a simple Internet browser. Additionally, an ABCD application has been developed for automated calculation of ABCD parameters and consequently embedded in the proposed TM-based system. PMID:18604754

Papastergiou, A; Tzekis, P; Hatzigaidas, A; Tryfon, G; Ioannidis, D; Zaharis, Z; Kampitaki, D; Lazaridis, P

2008-06-01

66

Interactive digital image processing course on the World Wide Web  

Microsoft Academic Search

Khorosware, which is the concept of using Khoros as an “authoring system” was first reported in ICIP-94. We present here the effort of integrating the Khoros 2 system, hypertext (HTML), and network browsers to produce an interactive digital image processing course. The success of the Khorosware lies on the the broad scope of the Khoros system which encourages and facilitates

R. Jordan; Roberto Lotufo

1996-01-01

67

Evaluation of web-based annotation of ophthalmic images for multicentric clinical trials.  

PubMed

An Internet browser-based annotation system can be used to identify and describe features in digitalized retinal images, in multicentric clinical trials, in real time. In this web-based annotation system, the user employs a mouse to draw and create annotations on a transparent layer, that encapsulates the observations and interpretations of a specific image. Multiple annotation layers may be overlaid on a single image. These layers may correspond to annotations by different users on the same image or annotations of a temporal sequence of images of a disease process, over a period of time. In addition, geometrical properties of annotated figures may be computed and measured. The annotations are stored in a central repository database on a server, which can be retrieved by multiple users in real time. This system facilitates objective evaluation of digital images and comparison of double-blind readings of digital photographs, with an identifiable audit trail. Annotation of ophthalmic images allowed clinically feasible and useful interpretation to track properties of an area of fundus pathology. This provided an objective method to monitor properties of pathologies over time, an essential component of multicentric clinical trials. The annotation system also allowed users to view stereoscopic images that are stereo pairs. This web-based annotation system is useful and valuable in monitoring patient care, in multicentric clinical trials, telemedicine, teaching and routine clinical settings. PMID:16770034

Chalam, K V; Jain, P; Shah, V A; Shah, Gaurav Y

2006-06-01

68

Validating Co-Training Models for Web Image Classification  

Microsoft Academic Search

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 multiple descriptions are conditional independent given the class of the object. The presence of multiple descriptions of objects in the form of text, images, audio

Dell Zhang; Wee Sun Lee

69

Alaskan Auroral All-Sky Images on the World Wide Web  

NASA Technical Reports Server (NTRS)

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.

Stenbaek-Nielsen, H. C.

1997-01-01

70

Efficient 3D rendering for web-based medical imaging software: a proof of concept  

NASA Astrophysics Data System (ADS)

Medical Imaging Software (MIS) found in research and in clinical practice, such as in Picture and Archiving Communication Systems (PACS) and Radiology Information Systems (RIS), has not been able to take full advantage of the Internet as a deployment platform. MIS is usually tightly coupled to algorithms that have substantial hardware and software requirements. Consequently, MIS is deployed on thick clients which usually leads project managers to allocate more resources during the deployment phase of the application than the resources that would be allocated if the application were deployed through a web interface.To minimize the costs associated with this scenario, many software providers use or develop plug-ins to provide the delivery platform (internet browser) with the features to load, interact and analyze medical images. Nevertheless there has not been a successful standard means to achieve this goal so far. This paper presents a study of WebGL as an alternative to plug-in development for efficient rendering of 3D medical models and DICOM images. WebGL is a technology that enables the internet browser to have access to the local graphics hardware in a native fashion. Because it is based in OpenGL, a widely accepted graphic industry standard, WebGL is being implemented in most of the major commercial browsers. After a discussion on the details of the technology, a series of experiments are presented to determine the operational boundaries in which WebGL is adequate for MIS. A comparison with current alternatives is also addressed. Finally conclusions and future work are discussed.

Cantor-Rivera, Diego; Bartha, Robert; Peters, Terry

2011-03-01

71

A web server for interactive and zoomable Chaos Game Representation images  

PubMed Central

Chaos Game Representation (CGR) is a generalized scale-independent Markov transition table, which is useful for the visualization and comparative study of genomic signature, or for the study of characteristic sequence motifs. However, in order to fully utilize the scale-independent properties of CGR, it should be accessible through scale-independent user interface instead of static images. Here we describe a web server and Perl library for generating zoomable CGR images utilizing Google Maps API, which is also easily searchable for specific motifs. The web server is freely accessible at , and the Perl library as well as the source code is distributed with the G-language Genome Analysis Environment under GNU General Public License.

Arakawa, Kazuharu; Oshita, Kazuki; Tomita, Masaru

2009-01-01

72

Web-based tissue microarray image data analysis: Initial validation testing through prostate cancer Gleason grading  

Microsoft Academic Search

Tissue microarray technology promises to enhance tissue-based molecular research by allowing improved conservation of tissue resources and experimental reagents, improved internal experimental control, and increased sample numbers per experiment. Organized, well-validated collection and analysis of the voluminous image data produced by tissue microarray technology is critical to maximize its value. Web-based technology for visual analysis and searchable storage of microarray

G. Steven Bova; Giovanni Parmigiani; Jonathan I Epstein; Thomas Wheeler; Neil R Mucci; Mark A Rubin

2001-01-01

73

Delivering images to the operating room: a web-based solution.  

PubMed

As radiology departments become filmless, they are discovering that some areas are particularly difficult to deliver images. Many departments have found that the operating room is one such area. There are space constraints and difficulty in manipulating the images by a sterile surgeon. This report describes one method to overcome this obstacle. The author's institution has been using picture archiving and communication system (PACS) for approximately 3 years, and it has been a filmless department for 1 year. The PACS transfers images to a webserver for distribution throughout the hospital. It is accessed by Internet Explorer without any additional software. The authors recently started a pilot program in which they installed dual panel flat screen monitors in 6 operating rooms. The computers are connected to the hospital backbone by ethernet. Graphic cards installed in the computers allow the use of dual monitors. Because the surgeons were experienced in viewing cases on the enterprise web system, they had little difficulty in adapting to the operating room (OR) system. Initial reception of the system is positive. The use of the web system was found to be superior by the surgeons because of the flexibility and manipulation of the images compared with film. Images can be magnified to facilitate viewing from across the room. The ultimate goal of electronic radiology is to replace hardcopy film in all aspects. One area that PACS has difficulty in accomplishing this goal is in the operating room. Most institutions have continued to print film for the OR. The authors have initiated a project that may allow web viewing in the OR. Because of limited space in the OR, an additional computer was undesirable. The CPU tower, keyboard, and mouse were mounted on a frame on the wall. The images were displayed on 2 flat screen monitors, which simulated the viewboxes traditionally used by the surgeons. Interviews with the surgeons have found both positive and negative aspects of the system. Overall impression is good, but the timeliness of the intraoperative films needs to be improved. The author's pilot project of installing a web-based display system in the operating room still is being evaluated. Their initial results have been positive, and if there are no major problems that arise the project will be expanded. These results show that it is possible to provide image delivery to the OR over the intranet that is acceptable to the surgeons. PMID:12105714

Bennett, W F; Tunstall, K M; Skinner, P W; Spigos, D G

2002-01-01

74

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

NASA Astrophysics Data System (ADS)

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.

Masseroli, Marco; Pinciroli, Francesco

2000-12-01

75

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

SciTech Connect

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.

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

1997-09-15

76

Visual Keyword Image Retrieval Based on Synergetic Neural Network for Web-Based Image Search  

Microsoft Academic Search

Feature extraction and similarity measure are two basickey issues in image retrieval. Combining the advantages of SNNin image recognition and selective attention for image retrieval,a novel visual keywords-driven image retrieval approach basedon these properties has been proposed. By using a predefinedset of visual keywords as prototype patterns stored with theSNN and then measuring the degree of similiarity of the storedimages

Tong Zhao; Lilian H. Tang; Horace H. S. Ip; Feihu Qi

2001-01-01

77

Web architecture for the remote browsing and analysis of distributed medical images and data.  

PubMed

To provide easy retrieval, integration and evaluation of multimodal medical images and data in a web browser environment, distributed application technologies and Java programming were used to develop 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 data 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 bioimages, 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 browsing, querying, visualizing and evaluating comprehensively medical images and records in all locations where they can need them - e.g. emergency, operating theaters, ward, or even outpatient clinics- the implemented prototype represents an important aid in providing more efficient diagnoses and medical treatments. PMID:11604703

Masseroli, M; Pinciroli, F

2001-01-01

78

The Usability Evaluation of Web-Based 3D Medical Image Visualization  

Microsoft Academic Search

\\u000a 3D visualization in virtual space simultaneously provides depth information with 2D information visualization ability. Since,\\u000a web-based e-learning system has become popular alternative framework for improving learning performance and increasing convenience\\u000a and flexibility to learners. Integrating a 3D medical image visualization into e-learning system aims to accomplish the needs\\u000a of biomedical engineering education where learners can navigate, browsing, and interact with

Sittapong Settapat; Tiranee Achalakul; Michiko Ohkura

79

Dcm-Ar: A fast Flash-based Web-PACS viewer for displaying large DICOM images  

Microsoft Academic Search

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

Emanuel J. C. Arguiñarena; José E. Macchi; Pedro P. Escobar; Mariana del Fresno; José M. Massa; Martín A. Santiago

2010-01-01

80

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

NASA Astrophysics Data System (ADS)

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.

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

2010-01-01

81

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

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.

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

2013-01-01

82

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

NASA Astrophysics Data System (ADS)

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).

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

2014-03-01

83

Dorsal spinal arachnoid web diagnosed with the quantitative measurement of cerebrospinal fluid flow on magnetic resonance imaging.  

PubMed

An arachnoid web is an abnormal formation of the arachnoid membrane in the spinal subarachnoid space that blocks CSF flow and causes syringomyelia. Although the precise mechanism of syrinx formation is unknown, dissection of the arachnoid web shrinks the syrinx and improves symptoms. Precisely determining the location of the arachnoid web is difficult preoperatively, however, because the fine structure generally cannot be visualized in usual MRI sequences. In this report the authors describe 2 cases of arachnoid web in which the web was preoperatively identified using quantitative CSF flow analysis of MRI. By analyzing cardiac-gated phase-contrast cine-mode MRI in multiple axial planes, the authors precisely localized the obstruction of CSF flow on the dorsal side of the spinal cord in both patients. This technique also revealed a 1-way valve-like function of the arachnoid webs. Imaging led to the early diagnosis of myelopathy related to the derangement of CSF flow and allowed the authors to successfully excise the webs through limited surgical exposure. PMID:24313674

Chang, Han Soo; Nagai, Atsushi; Oya, Soichi; Matsui, Toru

2014-02-01

84

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

NASA Astrophysics Data System (ADS)

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.

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

2010-05-01

85

Web-based segmentation and display of three-dimensional radiologic image data.  

PubMed

In many clinical circumstances, viewing sequential radiological image data as three-dimensional models is proving beneficial. However, designing customized computer-generated radiological models is beyond the scope of most physicians, due to specialized hardware and software requirements. We have created a simple method for Internet users to remotely construct and locally display three-dimensional radiological models using only a standard web browser. Rapid model construction is achieved by distributing the hardware intensive steps to a remote server. Once created, the model is automatically displayed on the requesting browser and is accessible to multiple geographically distributed users. Implementation of our server software on large scale systems could be of great service to the worldwide medical community. PMID:10180586

Silverstein, J; Rubenstein, J; Millman, A; Panko, W

1998-01-01

86

Integrating Web-based GIS and image processing tools for environmental monitoring and natural resource management  

Microsoft Academic Search

The combined powers of web-based geographic information systems (GIS) and on-line remote sensing tools can significantly reduce the high cost and labor associated with environmental monitoring and natural resource management. This paper introduces an integrated web-based GIS architecture by combining three levels of geographic information services (GIServices): data archive, information display, and spatial analysis. A prototype web site, WGAT (Web-based

Ming-Hsiang Tsou

2004-01-01

87

BrainIACS: a system for web-based medical image processing  

NASA Astrophysics Data System (ADS)

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.

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

2009-02-01

88

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

PubMed Central

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.

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

2013-01-01

89

Maskiton: Interactive, web-based classification of single-particle electron microscopy images.  

PubMed

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

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

2013-05-01

90

Exploring paths between web adoption and firm performance: The mediating effect of customer satisfaction, corporate image, market expansion and internal efficiency  

Microsoft Academic Search

This paper examines the effect of the different levels of web adoption on firm performance. We propose and test a model integrating one direct path and four indirect paths between levels of web adoption and firm performance. These four indirect paths take into account customer satisfaction, corporate image, market expansion and internal efficiency as intermediate factors. Data were collected from

Jose M. Hurtado González; Sebastian Bruque Cámara; Jose L. Galan González

2009-01-01

91

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

NASA Astrophysics Data System (ADS)

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.

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

92

Fun With Food Webs  

NSDL National Science Digital Library

This set of online activities consists of matching games about meadow, arctic and pond food webs. Intended for younger students, each game involves placing images of various plants and animals into their proper places in the food webs.

93

From PACS to Web-based ePR system with image distribution for enterprise-level filmless healthcare delivery.  

PubMed

The concept of PACS (picture archiving and communication system) was initiated in 1982 during the SPIE medical imaging conference in New Port Beach, CA. Since then PACS has been matured to become an everyday clinical tool for image archiving, communication, display, and review. This paper follows the continuous development of PACS technology including Web-based PACS, PACS and ePR (electronic patient record), enterprise PACS to ePR with image distribution (ID). The concept of large-scale Web-based enterprise PACS and ePR with image distribution is presented along with its implementation, clinical deployment, and operation. The Hong Kong Hospital Authority's (HKHA) integration of its home-grown clinical management system (CMS) with PACS and ePR with image distribution is used as a case study. The current concept and design criteria of the HKHA enterprise integration of the CMS, PACS, and ePR-ID for filmless healthcare delivery are discussed, followed by its work-in-progress and current status. PMID:21678035

Huang, H K

2011-07-01

94

Images.  

ERIC Educational Resources Information Center

The theme of this month's issue is "Images"--from early paintings and statuary to computer-generated design. Resources on the theme include Web sites, CD-ROMs and software, videos, books, and others. A page of reproducible activities is also provided. Features include photojournalism, inspirational Web sites, art history, pop art, and myths. (AEF)

Barr, Catherine, Ed.

1997-01-01

95

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

NASA Technical Reports Server (NTRS)

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.

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

2013-01-01

96

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)

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.

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

2010-03-01

97

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

NASA Astrophysics Data System (ADS)

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.

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

2009-12-01

98

Tracheal web.  

PubMed

Congenital tracheal web is a rare entity often misdiagnosed as refractory asthma. Clinical suspicion based on patient history, examination, and pulmonary function tests should lead to its consideration. Bronchoscopy combined with CT imaging and multiplanar reconstruction is an accepted, highly sensitive means of diagnosis. PMID:14586524

Legasto, Alan C; Haller, Jack O; Giusti, Robert J

2004-03-01

99

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)

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.

Bradley, Eliza Swan

100

A web-based remote collaborative system for visualization and assessment of semi-automatic diagnosis of liver cancer from CT images.  

PubMed

We propose a web-based collaborative CAD system allowing for the remote communication and data exchange between radiologists and researchers in computer vision-based software engineering. The proposed web-based interface is implemented in the Java Advanced Imaging Application Programming Interface. The different modules of the interface allow for 3D and 2D data visualization, as well as for the parametric adjustment of 3D reconstruction process. The proposed web-based CAD system was tested in a pilot study involving a limited number of liver cancer cases. The successful system validation in the feasibility stage will lead to an extended clinical study on CT and MR image databases. PMID:15718702

Branzan Albu, Alexandra; Laurendeau, Denis; Gurtner, Marco; Martel, Cedric

2005-01-01

101

LabelMe: A Database and Web-Based Tool for Image Annotation  

Microsoft Academic Search

Abstract Research in object detection and recognition in cluttered scenes requires large image collections with ground truth labels. The labels should provide information about the object classes present in each image, as well as their shape and locations, and possibly other attributes such as pose. Such data is useful for testing, as well as for supervised learning. This project provides

Bryan C. Russell; Antonio B. Torralba; Kevin P. Murphy; William T. Freeman

2008-01-01

102

On the sampling of web images for learning visual concept classifiers  

Microsoft Academic Search

Visual concept learning often requires a large set of training images. In practice, nevertheless, acquiring noise-free training labels with sufficient positive examples is always expensive. A plausible solution for training data collection is by sampling the largely available user-tagged images from social media websites. With the general belief that the probability of correct tagging is higher than that of incorrect

Shiai Zhu; Gang Wang; Chong-Wah Ngo; Yu-Gang Jiang

2010-01-01

103

Uncool Science: Photometry and Astrometry with Modified Web Cameras and Uncooled Imagers  

NASA Astrophysics Data System (ADS)

This paper discusses techniques that allow useful scientific observations to be performed with digital still cameras, modified webcams and low cost uncooled astronomical imagers. The paper emphasizes technique changes rel- ative to the use of traditional cooled CCD sensors that are required to get good results. Areas discussed include dark subtraction, statistical consid- erations in automatic image stacking, QE, sampling theory of color and inter- lined sensors.

Hoot, J. E.

2004-05-01

104

A Web-based Google-Earth Coincident Imaging Tool for Satellite Calibration and Validation  

NASA Astrophysics Data System (ADS)

The Group on Earth Observations (GEO) is coordinating international efforts to build a Global Earth Observation System of Systems (GEOSS) to meet the needs of its nine “Societal Benefit Areas”, of which the most demanding, in terms of accuracy, is climate. To accomplish this vision, satellite on-orbit and ground-based data calibration and validation (Cal/Val) of Earth observation measurements are critical to our scientific understanding of the Earth system. Existing tools supporting space mission Cal/Val are often developed for specific campaigns or events with little desire for broad application. This paper describes a web-based Google-Earth based tool for the calculation of coincident satellite observations with the intention to support a diverse international group of satellite missions to improve data continuity, interoperability and data fusion. The Committee on Earth Observing Satellites (CEOS), which includes 28 space agencies and 20 other national and international organizations, are currently operating and planning over 240 Earth observation satellites in the next 15 years. The technology described here will better enable the use of multiple sensors to promote increased coordination toward a GEOSS. The CEOS Systems Engineering Office (SEO) and the Working Group on Calibration and Validation (WGCV) support the development of the CEOS Visualization Environment (COVE) tool to enhance international coordination of data exchange, mission planning and Cal/Val events. The objective is to develop a simple and intuitive application tool that leverages the capabilities of Google-Earth web to display satellite sensor coverage areas and for the identification of coincident scene locations along with dynamic menus for flexibility and content display. Key features and capabilities include user-defined evaluation periods (start and end dates) and regions of interest (rectangular areas) and multi-user collaboration. Users can select two or more CEOS missions from a database including Satellite Tool Kit (STK) generated orbit information and perform rapid calculations to identify coincident scenes where the groundtracks of the CEOS mission instrument fields-of-view intersect. Calculated results are displayed on a customized Google-Earth web interface to view location and time information along with optional output to EXCEL table format. In addition, multiple viewports can be used for comparisons. COVE was first introduced to the CEOS WGCV community in May 2009. Since that time, the development of a prototype version has progressed. It is anticipated that the capabilities and applications of COVE can support a variety of international Cal/Val activities as well as provide general information on Earth observation coverage for education and societal benefit. This project demonstrates the utility of a systems engineering tool with broad international appeal for enhanced communication and data evaluation opportunities among international CEOS agencies. The COVE tool is publicly accessible via NASA servers.

Killough, B. D.; Chander, G.; Gowda, S.

2009-12-01

105

The Investigation of Cloud-Computing-based Image Mining Mechanism in Mobile Communication WEB on Android  

Microsoft Academic Search

With the development of 3G network technology, the rapid upgrading of mobile phone hardware, and the refined requirements for mobile phones by mobile phone users, it is essential for mobile phones to be able to promptly and accurately process images. A mobile phone terminal sends the service requests to cloud computer system which then processes the requests and sends the

Cai-Dong Gu; Kan Lu; Jian-Ping Wu; Ying-li Fu; Jing-xiang Li; Chang-shui Xiao; Mao-xin Si; Zhao-bin Liu

2010-01-01

106

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

ERIC Educational Resources Information Center

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…

Smith, Alison

2007-01-01

107

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

Microsoft Academic Search

Managing vast datasets collected throughout multiple clinical imaging communities has become critical with the ever increasing\\u000a and diverse nature of datasets. Development of data management infrastructure is further complicated by technical and experimental\\u000a advances that drive modifications to existing protocols and acquisition of new types of research data to be incorporated into\\u000a existing data management systems. In this paper, an

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

2010-01-01

108

A Web Graphics Primer.  

ERIC Educational Resources Information Center

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)

Buchanan, Larry

1999-01-01

109

Mining temporal patterns in popularity of web items  

Microsoft Academic Search

Huge amounts of various web items (e.g., images, keywords, and web pages) are being made available on the Web. The popularity of such web items continuously changes over time, and mining for temporal patterns in the popularity of web items is an important problem that is useful for several Web applications; for example, the temporal patterns in the popularity of

Woong-Kee Loh; Sandeep Mane; Jaideep Srivastava

2011-01-01

110

BWAIN: An Artistic Web Interpretation  

Microsoft Academic Search

BWAIN is a creative web browser which uniquely combines graphics and sound using the HTML structure of any selected web page.\\u000a The structure behind the web page which normally remains unseen, is revealed in a process of visualization. The HTML Code\\u000a acts as a genome for building an image which looks and sounds quite distinct. Several web pages may be

Linda Huber; Michael Bißmann; Stefan Gottschalk; Alexander Keck; Andreas Schönefeldt; Marko Seidenglanz; Norbert Sroke; Alexander Radke

2010-01-01

111

HiTIDE: An Extensible Service-Based Web Interface for the Search, Imaging, and Extraction of Swath-based Geophysical Parameters  

NASA Astrophysics Data System (ADS)

PO.DAAC's High-level Tool for Interactive Data Extraction(HiTIDE) is a web interface powered by a trio of services that facilitate efficient search, image, and extract capabilities for Level 2 swath satellite ocean data products in HDF and NetCDF data formats. HiTIDE provides both an intuitive user interface for direct human access to the data and a discoverable application programming interface via standards-based web services (OpenSearch, WMS). The key component to HiTIDE's capabilities is a backend tile database that supports precise spatial and temporal search functionality at a sub-granular resolution. With HiTIDE's architecture, science users can efficiently find, evaluate, and download subsetted science data products interactively or programmatically. As a system, HiTIDE represents a framework that can ingest virtually any OPeNDAP-enabled geolocated data product. This presentation will provide an overview of the HiTIDE GUI and its underlying web services plus a discussion of the future direction of development such as Level 3 data product support, enabling data-specific search constraints, and enhanced imaging capabilities.

Thompson, C. K.; Kim, R.

2012-12-01

112

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)

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.

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

2014-03-01

113

ImmunoRatio: a publicly available web application for quantitative image analysis of estrogen receptor (ER), progesterone receptor (PR), and Ki-67  

PubMed Central

Introduction Accurate assessment of estrogen receptor (ER), progesterone receptor (PR), and Ki-67 is essential in the histopathologic diagnostics of breast cancer. Commercially available image analysis systems are usually bundled with dedicated analysis hardware and, to our knowledge, no easily installable, free software for immunostained slide scoring has been described. In this study, we describe a free, Internet-based web application for quantitative image analysis of ER, PR, and Ki-67 immunohistochemistry in breast cancer tissue sections. Methods The application, named ImmunoRatio, calculates the percentage of positively stained nuclear area (labeling index) by using a color deconvolution algorithm for separating the staining components (diaminobenzidine and hematoxylin) and adaptive thresholding for nuclear area segmentation. ImmunoRatio was calibrated using cell counts defined visually as the gold standard (training set, n = 50). Validation was done using a separate set of 50 ER, PR, and Ki-67 stained slides (test set, n = 50). In addition, Ki-67 labeling indexes determined by ImmunoRatio were studied for their prognostic value in a retrospective cohort of 123 breast cancer patients. Results The labeling indexes by calibrated ImmunoRatio analyses correlated well with those defined visually in the test set (correlation coefficient r = 0.98). Using the median Ki-67 labeling index (20%) as a cutoff, a hazard ratio of 2.2 was obtained in the survival analysis (n = 123, P = 0.01). ImmunoRatio was shown to adapt to various staining protocols, microscope setups, digital camera models, and image acquisition settings. The application can be used directly with web browsers running on modern operating systems (e.g., Microsoft Windows, Linux distributions, and Mac OS). No software downloads or installations are required. ImmunoRatio is open source software, and the web application is publicly accessible on our website. Conclusions We anticipate that free web applications, such as ImmunoRatio, will make the quantitative image analysis of ER, PR, and Ki-67 easy and straightforward in the diagnostic assessment of breast cancer specimens.

2010-01-01

114

Mosaic Web Browser Celebrates 10th Birthday  

NSF Publications Database

... to allow Web pages to include both graphics and text was developed by students and staff working at ... post images, sound, video clips, and multi-font text within the Web's hypertext system. In 1994, NSF ...

115

Web Engineering.  

National Technical Information Service (NTIS)

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...

Y. Deshpande S. Murugeesan A. Ginige S. Hansen D. Schwabe M. M. Gaedke B. White

2003-01-01

116

Food Webs  

NSDL National Science Digital Library

The representation depicts 4 different food webs: Antarctica, the African Grasslands, the Australia Grasslands and a Marine environment. A separate food web for scavengers and decomposers is present in the African Grasslands section. Viewers must first build the web by moving boxes with the organism's picture and name to the appropriate spot on a grid. Clues describing food requirements are given as the boxes are moved. When the boxes are correctly placed a complete food web (with arrows) is displayed.

117

Web Engineering  

Microsoft Academic Search

Web Engineering is the application of systematic, disciplined and\\u000aquantifiable approaches to development, operation, and maintenance of Web-based\\u000aapplications. It is both a pro-active approach and a growing collection of\\u000atheoretical and empirical research in Web application development. This paper\\u000agives an overview of Web Engineering by addressing the questions: a) why is it\\u000aneeded? b) what is its domain

Yogesh Deshpande; San Murugesan; Athula Ginige; Steve Hansen; Daniel Schwabe; Martin Gaedke; Bebo White

2002-01-01

118

Web Browsing  

Microsoft Academic Search

\\u000a What is a web browser? Is it a computer program used to access sites on the World Wide Web? Is it a program that interprets\\u000a HTML coding so as to display formatted data? Well, it’s all of the above and more; a web browser (or simply browser) is an\\u000a application\\/software program that retrieves, interprets, and renders HTML or another language,

Kunal Mittal; Shikha Gupta

119

Spider Web Pattern  

NASA Technical Reports Server (NTRS)

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).

2006-01-01

120

Lower oesophageal web  

PubMed Central

A patient with a `congenital' oesophageal web was suffering from dysphagia and was treated surgically. A review is made of a few similar, well-documented cases. An effort is made to compare the clinical and pathological characteristics of the lesion and to discuss its pathogenesis. Images

Bjork, Viking Olov; Charonis, Constantin G.

1967-01-01

121

Web Engineering  

SciTech Connect

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.

White, Bebo

2003-06-23

122

Enabling Network Caching of Dynamic Web Objects  

Microsoft Academic Search

The World Wide Web is an important infrastructure for en- abling modern information-rich applications. Businesses can lose value due to lack of timely employee communication, poor employee coordina- tion, or poor brand image with slow or unresponsive web applications. In this paper, we analyze the responsiveness of an Intranet web appli- cation, i.e., an application within the corporate firewalls. Using

Pankaj K. Garg; Kave Eshghi; Thomas Gschwind; Boudewijn R. Haverkort; Katinka Wolter

2002-01-01

123

Visual Based Retrieval Systems and Web Mining--Introduction.  

ERIC Educational Resources Information Center

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)

Iyengar, S. S.

2001-01-01

124

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

PubMed

Mammalian prions refold host glycosylphosphatidylinositol-anchored PrP(C) into ?-sheet-rich PrP(Sc). PrP(Sc) 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 PrP(Sc) rather than on its truncated PrP27-30 product. We show that N-terminal PrP(Sc) epitopes are exposed in their physiological context and visualize, for the first time, PrP(Sc) in living cells. PrP(Sc) 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 PrP(Sc) amyloids. PMID:24493590

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; Taraboulos, Albert

2014-02-01

125

The integration of medical images with the electronic patient record and their web-based distribution 1  

Microsoft Academic Search

Medical images are currently created digitally and stored in the radiology department’s picture archiving and communication system. Reports are usually stored in the electronic patient record of other information systems, such as the radiology information system (RIS) and the hospital information system (HIS). But high-quality services can only be provided if electronic patient record data is integrated with digital images

H. Münch; U. Engelmann; A. Schröter; H. P. Meinzer

2004-01-01

126

Web Editors  

Microsoft Academic Search

Creation of Webpages, with their long and complex pages of HTML code for even the simplest of formats, can be greatly facilitated by the use of Web editors. These powerful tools provide shortcuts to change the appearance or arrangement of Webpages, eliminating many keystrokes. Recent Web editors have added many new and sophisticated features to this basic function. This preconference

Robb Waltner; Susan Wishnetsky

1999-01-01

127

Application of Information Technology: Server-based Approach to Web Visualization of Integrated Three-dimensional Brain Imaging Data  

Microsoft Academic Search

The authors describe a client-server approach to three-dimensional (3-D) visualization of neuroimaging data, which enables researchers to visualize, manipulate, and analyze large brain imaging datasets over the Internet. All computationally intensive tasks are done by a graphics server that loads and processes image volumes and 3-D models, renders 3-D scenes, and sends the renderings back to the client. The authors

Andrew V. Poliakov; Evan Albright; Kevin P. Hinshaw; David P. Corina; George Ojemann; Richard F. Martin; James F. Brinkley

2005-01-01

128

Web Robots and Web Mining  

NSDL National Science Digital Library

Manually indexing the World Wide Web is obviously an impossible task, and it is even a daunting challenge for automated techniques. Web content mining is a general term used to describe these techniques, which are intended for information categorization and filtering. Web robots serve a variety of purposes, including indexing; and they can be useful or, in some cases, harmful. Web usage mining, on the other hand, is used to determine how a Web site's structure and organization effect the way users navigate the site.The Web Robots Pages (1) is an excellent starting place to learn about these automated programs. Several hundred robots are documented in a database, and a selection of papers considers proper ethics and guidelines for using robots, among other things. An article on Web mining and its subclasses is given on DM Review (2). It describes the basics of Web analysis and outlines many benefits Web mining can offer. A course homepage on Web data mining from DePaul University (3) offers a broad selection of reading material on the subject. Mostly consisting of research papers and journal articles, the documents range from general applications to specific theories and case studies. Two computer scientists from Polytechnic University propose a robust, distributed Web crawler (another term for Web robot), intended for large-scale network interaction (4). The twelve page paper begins with the motivation for the project, and continues with a full description of the system architecture and implementation. The November 2002 issue of Computer magazine featured an article on Data Mining for Web Intelligence (5). It points out that today's Internet is lacking in many key aspects, and that Web mining will play an important role in the development of improved search engines and automatic document classification. A short poster presentation from the 2002 International World Wide Web Conference (6) introduces GeniMiner, a Web search strategy based on a genetic algorithm. GeniMiner operates on the premise of finding a nearly optimal solution in order to minimize manual analysis of the search results. KDnuggets (7) is a free, biweekly newsletter on data and Web mining. In recent issues, special attention has been given to the Total Information Awareness project, which is investigating ways of mining the Web and email for possible information about terrorist activity. Web robots are occasionally used for malicious purposes, namely to automatically register for free email or participate in online polls. A technology that was developed to counter these robots involved using a blurred or distorted word to gain access, which could easily be read by a human but would be impossible for a robot to read. In a press release from the University of California at Berkeley (8), researchers have discovered a way to allow Web robots to crack this security system. The article describes how it was accomplished and provides motivation for more advanced security measures.

Leske, Cavin.

2003-01-01

129

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)

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.

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

2014-05-01

130

Four-dimensional characterization of a sheet-forming web  

DOEpatents

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.

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

2003-04-22

131

Sensor web  

NASA Technical Reports Server (NTRS)

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.

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

2011-01-01

132

Web Service  

MedlinePLUS

... Spanish-language queries when using this parameter. term Text query submitted to the Web service. All special ... query?db=healthTopicsSpanish&term=asma Field Searching The text for term can include limiters to restrict the ...

133

Water on the Web: Lessons  

NSDL National Science Digital Library

In order to explore fundamental science concepts, Water on the Web has created tutorials utilizing the aquatic environment and real lake data. The site provides two types of lessons covering the same concepts: the Studying lessons, which are guided; and the Investigating lessons, which involve problem solving. High school and college students will find hands-on activities dealing with basic science principles such as Conductivity and Thermal Stratification. The Web site also addresses the important concepts of data collection, management, analysis and presentation. Providing many images and small Java presentations, students will find this Web site both intriguing and educational.

134

Mono Lake Web Site  

NSDL National Science Digital Library

Mono Lake Web Site is the homepage of the Mono Lake Committee and offers helpful information regarding the unique hypersaline and alkaline environment. Visitors will find information about the Mono Lake Committee, natural and political histories of the area, related water policies, a photo gallery with image descriptions, and links to related sites- including a clearinghouse. Those interested in Mono Basin birds will find sightings, counts, bird walks, and other related information. An additional feature, Mono Lake Live, offers up-to-the-minute data on road conditions, satellite images, weather, lake level, bird sightings, snow pack, and earthquakes.

Reis, Greg; Committee, Mono L.

135

Mark Rothko Web Feature  

NSDL National Science Digital Library

Not a virtual exhibition, the Mark Rothko Web Feature by the National Gallery of Art is really a reference work, providing context and background information on the artist. The Web Feature was produced in conjunction with the exhibition, Mark Rothko, at the National Gallery from May 3 through August 16, 1998, now travelling to the Whitney Museum of American Art, September 17-November 29, 1998. The resemblance to a reference book is enhanced by the design of the site, which encourages visitors to page through images of over 30 paintings in chronological order. The Gallery has divided Rothko's career into five periods, and a highlighted navigational bar shows visitors where they are in the chronology. Rothko's explanations of the philosophies behind his work and photographs of the artist help to place the work in context. The actual application of the paint on the canvas is important in Rothko's work, as in that of other abstract expressionists, and some of this nuance is not visible in the Web Feature. In fact, three paintings reproduced as flat black squares, but it is doubtful that these pictures would reproduce any better in the type of art reference book the Web Feature emulates.

136

Understanding Web services  

Microsoft Academic Search

Web services are a new breed of Web applications. These independent application components are published on to the Web in such a way that other Web applications can find and use them. They take the Web to its next stage of evolution, in which software components can discover other software components and conduct business transactions. Examples of Web services include

J. Roy; A. Ramanujan

2001-01-01

137

Ditto.com: See the Web  

NSDL National Science Digital Library

Fast and fun, this search engine differs from others by allowing users to visually navigate the Web. After entering a keyword or phrase, this search engine provides a relevant list of sources through photographic images, allowing users to see where they are going before they actually get there. For online shoppers, this is a great way to surf and shop the Web.

2001-01-01

138

Web service for digital holographic video processing  

NASA Astrophysics Data System (ADS)

A web-service for digital video hologram processing based on Berkeley Open Infrastructure for Network Computing (BOINC) is proposed. Proof-of-concept is confirmed for broad spectrum of applications such as digital holographic particle image velocimetry, water biomonitoring by means zooplankton analysis and digital holographic disdrometry. The snapshots presented in this paper were reconstructed using the proposed web-service.

Ekimov, Dmitry; Mäkynen, Anssi

2013-05-01

139

Two Sides of the Same Coin? Analysis of the Web-Based Social Media with Regard to the Image of the Agri-Food Sector in Germany  

Microsoft Academic Search

Never before has food been as safe and secure as it is today, but simultaneously, society has become increasingly critical towards agricultural and food related issues. This two-sided development between society and agribusiness will be analyzed using Framing Theory. A quantitative semantic analysis was applied to evaluate the web-based social media in Germany. 50,931 web posts were collected covering 21

Justus Boehm; Maike Kayser; Achim Spiller

2010-01-01

140

Sequential detection of web defects  

DOEpatents

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.

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

2001-01-01

141

The Bioluminescence Web Page  

NSDL National Science Digital Library

Bioluminescence is "simply light produced by a chemical reaction which originates in an organism." This Web sitefrom the University of California at Santa Barbara intends to provide a reliable source of information on this somewhat obscure subject. The site contains a lot of basic information about the chemistry of bioluminescence and specific bioluminescent organisms, along with some fabulous images. More specific information can be obtained through research abstracts and citations posted in the Research Forum and recently added workshop section. This is an attractive site that will appeal to a wide variety of audiences.

2002-01-01

142

The Real Mingus Web  

NSDL National Science Digital Library

The late Charles Mingus was one of the jazz world's most accomplished bassists and composers, and his music lives on after his death through the concerted efforts of his wife, Sue Mingus, and the Charles Mingus Big Band. This Web site will take users to a site devoted to Mingus that includes a brief biography, information about the Mingus Big Band, a gallery of images, and brief writings by Mingus himself. The writings section may be the most compelling, as it contains brief explanations of his song titles and his Grammy-nominated liner notes for his 1971 album, Let My Children Hear Music.

143

Deep Web video  

SciTech Connect

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.

None Available

2009-06-01

144

Deep Web video  

ScienceCinema

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.

145

Deep Web video  

ScienceCinema

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.

None Available

2012-03-28

146

Filling HTML Forms Simultaneously: CoWeb - Architecture and Functionality  

Microsoft Academic Search

CoWeb is a system to support simultaneous work in the World Wide Web. CoWeb enables two or more users at remote locations to work with the same HTML document. For example, input fields can be filled collaboratively, and pointers and stretching rectangles can be used to highlight particular parts of images. An additional chatting channel can be used to talk

Stephan Jacobs; Michael Gebhardt; Stefanie Kethers; Wojtek Rzasa

1996-01-01

147

A rendering approach for stereoscopic web pages  

NASA Astrophysics Data System (ADS)

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.

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

2014-03-01

148

Connecting to the Web.  

ERIC Educational Resources Information Center

Lists equipment necessary to get connected to the Web at home or at school and additional equipment needed to maintain a Web site and publish on the Internet. Provides short cuts and tips for maintaining a Web site. (PA)

Hensel, Jan

1997-01-01

149

E-Commerce Architecture Based on Web3D, Web2.0 & SSH  

Microsoft Academic Search

To address the serious problems in e-commerce based on traditional 2D image-word, the author introduced Web3D, Flex and SSH technologies into e-commerce, presented “3D Virtual Reality & Flex” Web architecture for e-commerce, researched mechanisms of their architectures, and implemented their integration and communication & interaction: Flex and Struts2 via XML, Flex and Spring & Hibernate via BlazeDS, Flex and Web3D

Wenjun Zhang

2010-01-01

150

CERES Web Links  

...   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) ...

2013-03-21

151

Composing Web services on the Semantic Web  

Microsoft Academic Search

Service composition is gaining momentum as the potential silver bullet for the envisioned Semantic Web.It pur- ports to take the Web to unexplored efficiencies and provide a flexible approach for promoting all types of activities in to- morrow's Web.Applications expected to heavily take advan- tage of Web service composition include B2B E-commerce and E-government.To date, enabling composite services has largely

Brahim Medjahed; Athman Bouguettaya; Ahmed K. Elmagarmid

2003-01-01

152

Planners Web  

NSDL National Science Digital Library

Planners Web is a great way to get acquainted with the field of urban planning as it provides commentary on the rise of the "creative class" and conversations about designing walkable cities. First-time visitors can check out the What's New area to read through compelling articles that include "Ten Things You Should Know About Project Opponents" and "Transportation That Works for All Walks of Life.â Moving on, visitors can look over great sections that cover American planning history ("A is for Automobile to Z is for ZoningâÂÂ) and The Secrets of Successful Communities. On the top of the homepage, visitors will find sections such as Basic Tools, Planning Topics, and Today's Planning News. Also, visitors may wish to sign up for free email updates.

153

WebCanal: A Multicast Web Application  

Microsoft Academic Search

This paper addresses the problems related to multipoint distribution of Web documents over Internet. We present a multicast Web application which allows the sharing of Web resources among a group of people by using the MBONE technology. We describe a general-purposed light-weight reliable multicast transport protocol (LRMP) which is an important building block of the application. We will also discuss

Tie Liao

1997-01-01

154

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

ERIC Educational Resources Information Center

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.…

Qin, Jian; Wesley, Kathryn

1998-01-01

155

Designing for Interaction, Learner Control, and Feedback During Web-Based Learning.  

ERIC Educational Resources Information Center

Combining concepts of instructional design with the attributes of Web technology is one way to maximize Web-based learning. Highlights the applications, limitations, and cognitive implications of Web-based organizational techniques such as frames, image maps, and tables, and outlines a two-phase Web-based learning design model. (PEN)

El-Tigi, Manal; Branch, Robert Maribe

1997-01-01

156

Automatically Determining Semantics for World Wide Web Multimedia Information Retrieval  

Microsoft Academic Search

Search engines are useful because they allow the user to find information of interest from the World Wide Web (WWW). However, most of the popular search engines today are textual; they do not allow the user to find images from the web. For effective retrieval, determining the semantics of the images is essential. In this paper, we describe the problems

Sougata Mukherjea; Junghoo Cho

1999-01-01

157

Deep Web Structure  

Microsoft Academic Search

Our current understanding of Web structure is based on large graphs created by centralized crawlers and indexers. They obtain data almost exclusively from the so-called surface Web, which consists, loosely speaking, of interlinked HTML pages. The deep Web, by contrast, is information that is reachable over the Web, but that resides in databases; it is dynamically available in response to

Munindar P. Singh

2002-01-01

158

Web crawlers compared  

Microsoft Academic Search

Tools for the assessment of the quality and reliability of Web applications are based on the possibility of downloading the target of the analysis. This is achieved through Web crawlers, which can automatically navigate within a Web site and perform proper actions (such as download) during the visit. The most important performance indicators for a Web crawler are its completeness

Christian Girardi; Filippo Ricca; Paolo Tonella

2006-01-01

159

Querying the deep web  

Microsoft Academic Search

Data stored outside Web pages and accessible from the Web, typically through HTML forms, consitute the so-called Deep Web. Such data are of great value, but difficult to query and search. We survey techniques to optimize query processing on the Deep Web, in a setting where data are represented in the relational model. We illustrate optimizations both at query plan

Andrea Calì; Davide Martinenghi

2010-01-01

160

Web Programming and Security  

NSDL National Science Digital Library

The web uses complex applications that run on heterogeneous browsers that may be built using programming technologies such as Javascript, AJAX, Google Web Toolkit, Apache Struts, Java Server Faces, and Rails. This course covers how core web technologies work; common security vulnerabilities; and how to build secure web applications that avoid them.

Mitchell, John

2009-02-24

161

Políticas del sitio web  

Cancer.gov

En el sitio web del NCI se proporcionan enlaces a otros sitios web con fines informativos y para conveniencia del público. Si el usuario selecciona un sitio web externo, saldrá del sitio web del NCI y estará sujeto a las políticas de privacidad y seguridad de dicho sitio.

162

Web-Enabled?  

ERIC Educational Resources Information Center

Discusses problems that users with disabilities, particularly visual impairments, have with Web-based classes. Discusses efforts by the Texas Commission for the Blind to offer Web-based training to visually impaired staff members; and explains how to test a Web site for accessibility and how to make a Web site more accessible and effective. (LRW)

Kiser, Kim

2001-01-01

163

The Fortune 500 Web  

Microsoft Academic Search

The dramatic speed of new developments in Web technology often makes designing large, corporate Web pages a difficult task. The life cycle of standards used in Web design is very short, with features introduced in one version sometimes dropped in the next. The evolution of client software for the Web also proceeds quickly, but the distribution of this software doesn't

Volker Turau

1998-01-01

164

The Federal Web Locator  

NSDL National Science Digital Library

The Villanova Center for Information Law and Policy is pleased to announce the Federal Web Locator service. This is a World Wide Web page for accessing over 210 different World Wide Web servers with federal government information. The Federal Web Locator is intended to be a one-stop kiosk for jumping off to federal sites.

1997-01-01

165

Decentralizing Composite Web Services  

Microsoft Academic Search

Web services make information and software available programmaticallyvia the Internet and may be used as build- ing blocks for applications. A composite web service is one that is built using multiple component web services. Com- posite web services are emerging as a programming model of distributed computation applicable to business process. Once its specification has been developed, the composite service

Mangala Gowri Nanda; Satish Chandra; Vivek Sarkar

2003-01-01

166

Structural Web Search Engine  

Microsoft Academic Search

We present a new approach in web search engines. The web creates new challenges for information retrieval. The vast improvement in information access is not the only advantage resulting from the keyword search. Ad- ditionally, much potential exists for analyzing interests and relationships within the structure of the web. The creation of a hyperlink by the author of a web

Arash Rakhshan; Lawrence B. Holder; Diane J. Cook

2003-01-01

167

Are You Web Literate?  

ERIC Educational Resources Information Center

Defines Web literacy, a subset of information literacy, as the ability to access, search, utilize, communicate, and create information on the World Wide Web. Offers 10 stages toward Web literacy, including using hyperlinks and bookmarks, an information resource for research, creating classroom lessons, guiding student use, and creating Web pages.…

Darrow, Rob

1999-01-01

168

WebMO  

NSDL National Science Digital Library

WebMO is a World Wide Web-based interface to computational chemistry packages. WebMO is available for free and can be installed on nearly any Unix or Linux system. WebMO Pro is a commercial add-on to the freeware WebMO computational chemistry package. It features a variety of powerful enhancements that are suitable for serious education, commercial, or research-level users.

169

Knowledge Discovery over the Deep Web, Semantic Web and XML  

Microsoft Academic Search

In this tutorial we provide an insight into Web Mining, i.e., discover- ing knowledge from the World Wide Web, especially with reference to the lat- est developments in Web technology. The topics covered are: the Deep Web, also known as the Hidden Web or Invisible Web; the Semantic Web including standards such as RDFS and OWL; the eXtensible Markup Language

Aparna S. Varde; Fabian M. Suchanek; Richi Nayak; Pierre Senellart

2009-01-01

170

Guide to the Internet. The world wide web.  

PubMed Central

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

Pallen, M.

1995-01-01

171

Comprehensive Web-Based Patient Information Environment.  

National Technical Information Service (NTIS)

The paper describes a new type of medical information environment which is fully web-enabled. The system can handle any type medical information including text, physiological waveforms, images and moving images, etc. The key to the PiRiLiS design is advan...

R. I. Kitney S. Claesen J. Halls

2001-01-01

172

California Academy of Sciences: AntWeb  

NSDL National Science Digital Library

AntWeb, an excellent service of the California Academy of Sciences, provides users with "tools for exploring the diversity and identification of ants (Hymenoptera: Formicidae). These tools have been developed to facilitate the use of ants in inventory and monitoring programs and provide ant taxonomists with images and types." At present, AntWeb offers information on all ant genera worldwide as well as highlighting ants of Madagascar and California in particular. The site provides a search engine for the comprehensive AntWeb database which contains images of, and information about, ants from all over the world. AntWeb also offers an awesome World Ants Slide Show which includes Head, Profile, and Dorsal Views of many ants.

173

Policy-Aware Content Reuse on the Web  

NASA Astrophysics Data System (ADS)

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.

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

174

WebAnatomy.net  

NSDL National Science Digital Library

With a longtime presence on the web, Professor Jim Swan of the University of New Mexico has created a fine set of online anatomy and physiology resources that he uses in his courses on a regular basis. Students of the human body will also want to avail themselves of these materials, which include sets of pathology images and slides that cover such conditions as coronary artery thrombosis, atherosclerosis, and so on. One rather handy section includes weblab modules that introduce acolytes to the world of the heart, the lungs, and the digestive system through slides and interactive photos. The site is rounded out by the "Virtual Microscope" area, which includes detailed slides and explanations of cartilage, bone, blood, and muscular tissue.

Swan, Jim

175

WebQuest  

NSDL National Science Digital Library

The WebQuest website offers various resources for teachers looking to use the WebQuest model to teach with the Web. A WebQuest "is an inquiry-oriented activity in which most or all of the information used by learners is drawn from the Web." The model, developed in 1995 at San Diego State University by Bernie Dodge with Tom March, has received significant attention in recent years. The bulk of the website is located in the Readings and Trainings Materials section, where teachers can find the paper that started the WebQuest project, as well as various articles providing different perspectives on what the WebQuest is all about and how to proceed to create your own lesson using the Internet. Examples of WebQuests created by teachers and a template with sections such as Introduction, Task, Process, Evaluation, Resources, and Conclusion help guide you through the process. The Portal provides updates on WebQuest news (mostly workshops and conferences) and a link to the Top rated WebQuests, as well as some "Middling" WebQuests, and new ones that have not yet been rated. The WebQuests in their database as well as various articles can also be searched from the Portal. The Forum section is a place for "conversations about using and extending the WebQuest model."

176

JPL web team  

NASA Technical Reports Server (NTRS)

The Jet Propulsion Laboratory (JPL) WEB Team activities were reported for activities which were directed toward identifying and attacking areas in the growth of dendritic web ribbon, to complement the program at Westinghouse Electric Corp.

Bickler, D. B.

1986-01-01

177

Web Site Evaluation Checklist  

NSDL National Science Digital Library

This worksheet outlines a method to evaluate the quality and reliability of a web site. It could be given to students to help them develop the ability to make critical judgements of web-based materials.

2004-11-19

178

Web Applications With Django  

Microsoft Academic Search

\\u000a Django is a modern Python web framework that redefined web development in the Python world. A fullstack approach, pragmatic\\u000a design, and superb documentation are some of the reasons for its success.

Josh Juneau; Jim Baker; Victor Ng; Leo Soto; Frank Wierzbicki

179

ANALIZANDO LA WEB SEMÁNTICA  

Microsoft Academic Search

The vast and increasing amount of Web resources make evident that the lexical-statistical aids, by itself, can't resolve the information retrieval problems. The Semantic Web project tries to diminish these problems (and much more) by the \\

E. Herrera-Viedma; Y. Hassan; J. C. Herrera

180

Spatial web service evaluator for supporting spatial web portal  

Microsoft Academic Search

Web services are key enabling technology for information interoperability and serve as the foundation for spatial Web portal. However, the quality of web services is different and becomes one of the challenges for deploying a spatial web portal. We conducted initial research and developed a spatial web service evaluator to assess the qualities of web services taken Open Geospatial Consortium

J. Li; C. Yang; H. Wu; Z. Li; M. Sun

2010-01-01

181

New Trends in Web Usage Patterns and Web Traffic.  

ERIC Educational Resources Information Center

As the Web is expanding, the Web traffic is changing, and so are the users. To get an adequate understanding of the Web as a medium, it is of paramount importance to know the users and the dominant usage patterns. The purpose of this paper is to map important aspects of Web usage patterns, Web traffic and Web search behavior. Issues dealt with…

Jensen, Jens F.

182

Web Communities Defined by Web Page Content  

NASA Astrophysics Data System (ADS)

In this chapter, we are looking for a relationship between the intent of Web pages, their architecture and the communities who take part in their usage and creation. For us, the Web page is entity carrying information around these communities. Our chapter describes techniques which can be used to extract the mentioned information as well as tools usable in the analysis of this information. Information about communities could be used in several ways thanks to our approach. Finally, we present experiments which prove the feasibility of our approach. These experiments also show a possible way as to how to measure the similarity of Web pages and Web sites using microgenres. We define the microgenre as a building block of Web pages which is based on the social interaction.

Kud?lka, Miloš; Snášel, Václav; Horák, Zden?k; Hassanien, Aboul Ella; Abraham, Ajith

183

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

NASA Technical Reports Server (NTRS)

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.

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

1996-01-01

184

Estimation of Web video multiplicity  

NASA Astrophysics Data System (ADS)

With ever more popularity of video web-publishing, many popular contents are being mirrored, reformatted, modified and republished, resulting in excessive content duplication. While such redundancy provides fault tolerance for continuous availability of information, it could potentially create problems for multimedia search engines in that the search results for a given query might become repetitious, and cluttered with a large number of duplicates. As such, developing techniques for detecting similarity and duplication is important to multimedia search engines. In addition, content providers might be interested in identifying duplicates of their content for legal, contractual or other business related reasons. In this paper, we propose an efficient algorithm called video signature to detect similar video sequences for large databases such as the web. The idea is to first form a 'signature' for each video sequence by selection a small number of its frames that are most similar to a number of randomly chosen seed images. Then the similarity between any tow video sequences can be reliably estimated by comparing their respective signatures. Using this method, we achieve 85 percent recall and precision ratios on a test database of 377 video sequences. As a proof of concept, we have applied our proposed algorithm to a collection of 1800 hours of video corresponding to around 45000 clips from the web. Our results indicate that, on average, every video in our collection from the web has around five similar copies.

Cheung, SenChing S.; Zakhor, Avideh

1999-12-01

185

Google's Deep Web crawl  

Microsoft Academic Search

The Deep Web, i.e., content hidden behind HTML forms, has long been acknowledged as a significant gap in search engine coverage. Since it represents a large portion of the structured data on the Web, accessing Deep-Web content has been a long-standing challenge for the database commu- nity. This paper describes a system for surfacing Deep-Web content, i.e., pre-computing submissions for

Jayant Madhavan; David Ko; Lucja Kot; Vignesh Ganapathy; Alex Rasmussen; Alon Y. Halevy

2008-01-01

186

Web Service Modeling Ontology  

Microsoft Academic Search

The potential to achieve dynamic, scalable and cost-efiective mar- ketplaces and eCommerce solutions has driven recent research efiorts towards so-called Semantic Web Services, that are enriching Web services with machine- processable semantics. To this end, the Web Service Modeling Ontology (WSMO) provides the conceptual underpinning and a formal language for semantically describing all relevant aspects of Web services in order

Dumitru Roman; Uwe Keller; Holger Lausen; Jos De Bruijn; Rubén Lara; Michael Stollberg; Axel Polleres; Cristina Feier; Christoph Bussler; Dieter Fensel

2005-01-01

187

Implementation of Web Crawler  

Microsoft Academic Search

The World Wide Web is an interlinked collection of billions of documents formatted using HTML. Ironically the very size of this collection has become an obstacle for information retrieval. The user has to shift through scores of pages to come upon the information he\\/she desires. Web crawlers are the heart of search engines. Web crawlers continuously keep on crawling the

Pooja Gupta; Kalpana Johari

2009-01-01

188

Evaluating Web Usability  

ERIC Educational Resources Information Center

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…

Snider, Jean; Martin, Florence

2012-01-01

189

Testing Web Applications  

Microsoft Academic Search

The rapid diffusion of Internet and open standard technologies is producing a significant growth of the demand of Web sites and Web applications with more and more strict requirements of usability, reliability, interoperability and security. While several methodological and technological proposals for developing Web applications are coining both from industry and academia, there is a general lack of methods and

Giuseppe Antonio Di Lucca; Anna Rita Fasolino; Francesco Faralli; Ugo De Carlini

2002-01-01

190

Architecture and the Web.  

ERIC Educational Resources Information Center

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…

Money, William H.

191

WWW: Neuroscience Web Sites  

ERIC Educational Resources Information Center

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…

Liu, Dennis

2006-01-01

192

Improving Web Site Design  

Microsoft Academic Search

lead to lost productivity and rev-enue. The question of how to improve the design of informational Web sites is thus of critical importance. Although most prominent Web sites are created by professional design firms, many smaller sites are built by people with little design experience or training. As a consequence, Web sites with local reach, such as those belonging to

Melody Y. Ivory; Marti A. Hearst

2002-01-01

193

Presence of pro-tobacco messages on the Web.  

PubMed

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

Hong, Traci; Cody, Michael J

2002-01-01

194

Structural Testing of Web Applications  

Microsoft Academic Search

In recent years, Web applications have become prevalent around the world. Many companies have developed or integrated their mission-critical applications using Web technologies. As Web applications become more complex, testing Web applications becomes crucial. We extend data flow testing techniques to Web applications. Several data flow issues for analyzing HTML and eXtensible Markup Language (XML) documents in Web applications are

Chien-hung Liu; David Chenho Kung; Pei Hsia; Chih-tung Hsu

2000-01-01

195

Drying of fiber webs  

DOEpatents

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.

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

1997-01-01

196

Drying of fiber webs  

DOEpatents

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.

Warren, D.W.

1997-04-15

197

Chapter 12: Web-based Tools - The NOAO NVO Portal  

NASA Astrophysics Data System (ADS)

This chapter introduces a web-based application to discover, access, and analyze imaging data within the Virtual Observatory. The tool itself runs within a Firefox browser and is fully web-based. The NOAO NVO Portal provides a static "cached view" of many VO image archive holdings through: 1) footprints of their instrument wire-frames and 2) a time-line view of when those images were taken. The web application allows for live discovery and access via those same NVO compliant image access services, a shopping cart to stage data from different archives at one location, and direct access to VO image analysis services (e.g. WESIX and Aladin). The web application is available at: http://nvo.noao.edu.

Miller, C. J.

198

Chapter 14: Web-based Tools - WESIX  

NASA Astrophysics Data System (ADS)

We present here the design and features of the Web Enabled Source Identifier with X-Matching (WESIX). With the proliferation of large imaging surveys, it has become increasingly apparent that tasks performed frequently by astronomers need to be made available in a web-aware manner. The reasons for this are twofold: First, it is no longer feasible to work with the complete data sets. Calculations are much more efficient if they can be carried out at the data center where large files can be transferred quickly. Second, exploratory science can be greatly facilitated by combining common tasks into integrated web services. WESIX addresses both of these issues. It is deployable to large data centers where source identification can be carried out at the data source. In addition, WESIX can transparently leverage the capabilities of Open SkyQuery to crossmatch with large catalogs. The result is a web-based service that integrates object detection with the ability to crossmatch against published catalog data. In this chapter we will discuss how WESIX is constructed, its functionality and some example usage. Section 1 will give a brief overview of the architecture of the service. Section 2 will introduce the features of the service through both the web browser and SOAP web service interfaces. Section 3 gives a detailed overview of the web service methods. Section 4 walks through the example client distributed with the software package.

Krughoff, K. S.; Connolly, A. J.

199

An Architectural Framework of a Crawler for Locating Deep Web Repositories Using Learning Multi-agent Systems  

Microsoft Academic Search

The World Wide Web (WWW) has become one of the largest and most readily accessible repositories of human knowledge. The traditional search engines index only surface Web whose pages are easily found. The focus has now been moved to invisible Web or hidden Web, which consists of large warehouse of useful data such as images, sounds, presentations and many other

J. Akilandeswari; N. P. Gopalan

2008-01-01

200

A demanding web-based PACS supported by web services technology  

NASA Astrophysics Data System (ADS)

During the last years, the ubiquity of web interfaces have pushed practically all PACS suppliers to develop client applications in which clinical practitioners can receive and analyze medical images, using conventional personal computers and Web browsers. However, due to security and performance issues, the utilization of these software packages has been restricted to Intranets. Paradigmatically, one of the most important advantages of digital image systems is to simplify the widespread sharing and remote access of medical data between healthcare institutions. This paper analyses the traditional PACS drawbacks that contribute to their reduced usage in the Internet and describes a PACS based on Web Services technology that supports a customized DICOM encoding syntax and a specific compression scheme providing all historical patient data in a unique Web interface.

Costa, Carlos M. A.; Silva, Augusto; Oliveira, José L.; Ribeiro, Vasco G.; Ribeiro, José

2006-03-01

201

WebDesignHelper.co.uk  

NSDL National Science Digital Library

For those individuals who would like to design a Web site, but still might not have the technical acumen required, this site is a free resource that features numerous templates, Web graphics, fonts, and a number of other useful items that can be used to create a complete Web site. The template section alone contains 129 free full-page templates, along with 21 horizontal menus, 26 vertical menus, and 23 table templates. The Web graphics and fonts section contains 144 fonts, 120 icons (with such popular images as tables, graphs, and charts), 67 types of arrows, and 128 buttons. For users with queries, an online forum is also available where users can submit and read questions. Lastly, there is an area where advanced users can submit their own contributions for inclusion on the site.

2007-07-14

202

Creating Web Sites for Web Surfers  

ERIC Educational Resources Information Center

If you build it, will they come? This is one of the fundamental questions anybody creating a Web site has to confront, whether you're a business person, a Web professional or a home user. One of the fundamental ways to ensure people do come, and return, is to make the content of your site as appealing and as accessible as possible. A new study by…

Goldsborough, Reid

2004-01-01

203

Imitation on the Web: Flattery, Fair Use, or Felony?  

ERIC Educational Resources Information Center

Discusses copyright and fair use on the Internet and describes how to investigate library Web sites that have been copied without permission. Highlights include the importance of using META tags to help prove authorship; the need to document with printed copies; how to register a Web site; and image watermarks. (LRW)

Logan, Debra

2000-01-01

204

Media on the web, in post-production and broadcasting: the practitioner day of the ACM 2009 International Conference on Image and Video Retrieval  

Microsoft Academic Search

It has become a tradition that the final day of the International Conference on Image and Video Retrieval is a practitioners day where the researchers are joined by practitioners and will meet peers from multimedia industry. Multimedia search systems, engines and services gained strong interest and support, not only from academia and industry, but also from (inter)national authorities supporting these

Sébastien Marcel; Roelof Van Zwol; Ricardo A. Baeza-yates; Oliver Heckmann; Jan Erik Solem; Johan Oomen; Hans Van Gageldonk; Jean-pierre Gehrig; Xavier Vives; Baris Sumengen

2009-01-01

205

Using Web Server Logs in Evaluating Instructional Web Sites.  

ERIC Educational Resources Information Center

Web server logs contain a great deal of information about who uses a Web site and how they use it. This article discusses the analysis of Web logs for instructional Web sites; reviews the data stored in most Web server logs; demonstrates what further information can be gleaned from the logs; and discusses analyzing that information for the…

Ingram, Albert L.

2000-01-01

206

Using Open Web APIs in Teaching Web Mining  

ERIC Educational Resources Information Center

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…

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

2009-01-01

207

WebEAV  

PubMed Central

The task of creating and maintaining a front end to a large institutional entity-attribute-value (EAV) database can be cumbersome when using traditional client-server technology. Switching to Web technology as a delivery vehicle solves some of these problems but introduces others. In particular, Web development environments tend to be primitive, and many features that client-server developers take for granted are missing. WebEAV is a generic framework for Web development that is intended to streamline the process of Web application development for databases having a significant EAV component. It also addresses some challenging user interface issues that arise when any complex system is created. The authors describe the architecture of WebEAV and provide an overview of its features with suitable examples.

Nadkarni, Prakash M.; Brandt, Cynthia M.; Marenco, Luis

2000-01-01

208

iWeb  

NSDL National Science Digital Library

iWeb Objective The objective of this lesson is to be able to produce a simple website on a Mac using the software program iWeb. Introduction This lesson is an informal guide for friends and family - it provides the things I found most useful when first beginning to use iWeb. The Apple website has the best information but I found some other information to be supplemental and useful. When you have navigated ...

Pedersen, Megan

2009-10-12

209

The Semantic Web  

NASA Astrophysics Data System (ADS)

The Semantic Web is the new-generation Web that tries to represent information so that it can be used by machines not just for display purposes, but for automation, integration, and reuse across applications (Boley et al. 2001). It has been one of the hottest R&D topics in recent years in the AI community, as well as in the Internet community—the Semantic Web is an important W3C activity (SW Activity 2008).

Gaševic, Dragan; Djuric, Dragan; Devedžic, Vladan

210

Benchmarking Modern Web Browsers  

Microsoft Academic Search

Abstract— Many different Web browsers are available on the Internet, free of charge. A browser performs several tasks, such as rendering Web pages on the screen and executing client-side code often embedded,in Web pages. Users typically choose a browser that gives them a satisfying browsing experience, which is partly determined by the speed of the browser. This paper presents benchmark,performance

Jordan Nielson; Carey Williamson; Martin Arlitt

211

Smart-Web  

Microsoft Academic Search

The problems associated with the management of Internet sites that require dynamic content or constant changes has led to the production of the article. http:\\/\\/www.smart-city.com.au is a local government Internet site which has made use of Smart-Web to alleviate the bottleneck that is encountered at the Web master when highly dynamic Web content most be altered. It was found that

John Walker; George Bryan

2000-01-01

212

Weaving a Better Web  

NSDL National Science Digital Library

The cover story of Byte's March 1998 issue contains several articles on the future of web publishing techniques. The articles begin with the proposition that Hyptertext Markup Language (HTML) is no longer able to keep up with the development of dynamic web content. They then discuss the future of web markup, with particular emphasis on the advantages of the newly emerging Extensible Markup Language (XML). Examples are provided.

Dobson, Rick.; Flohr, Udo.; Graham, Tony.; Mace, Scott.

1998-01-01

213

Predicting web spam with HTTP session information  

Microsoft Academic Search

Web spam is a widely-recognized threat to the quality and security of the Web. Web spam pages pollute search en- gine indexes, burden Web crawlers and Web mining ser- vices, and expose users to dangerous Web-borne malware. To defend against Web spam, most previous research ana- lyzes the contents of Web pages and the link structure of the Web graph.

Steve Webb; James Caverlee; Calton Pu

2008-01-01

214

Project Plan: Web-Based Assessment of Screener Competency.  

National Technical Information Service (NTIS)

This project plan describes the development of a web-based On-the-Job Training test and Screener Multi-faceted Assessment Recurrent Test to assess checkpoint screener X-ray image interpretation skills.

S. B. Morgan

2001-01-01

215

Diasporic Web Sites: Ingroup and Outgroup Discourse.  

ERIC Educational Resources Information Center

Examines a representative World Wide Web page about India to determine ways in which it addresses the "ingroup" of diasporic Indians and "outgroup" visitors to the site. Identifies several textual strategies including modes of formatting, use of language, specific selection of images and multimedia elements, and specific links provided by the…

Mitra, Ananda

1997-01-01

216

Hydrogeology and Flooding on the Web  

NSDL National Science Digital Library

Hydrogeology and Flooding on the Web reviews internet sites which contain information on water resources and flood events. Resource categories are flooding, weather-related sites, and hydrology. Some site addresses and image galleries are hyper-linked, while others must be manually cut and pasted into the resource user's browser location.

Gore, Pamela

1997-02-19

217

Silicon web process development  

NASA Technical Reports Server (NTRS)

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.

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

1978-01-01

218

Web Standards Project  

NSDL National Science Digital Library

Led by the World Wide Web Consortium, the Web Standards Project is an effort to make "technologies for creating and interpreting web-based content." These standards allow many types of languages and object models to be compatible on different browsers and platforms. The project's home page has many resources for users to learn about standards and guidelines. Some of the major topics include HTML, XML, Cascading Style Sheets, and accessibility. An informative section on Web browsers compares the standards compliance of eight popular browsers. Special email addresses of some browser manufacturers are also given, so users can report bugs to help improve the quality of the software.

1998-01-01

219

Web 2.0  

NASA Astrophysics Data System (ADS)

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.

Gibson, Becky

220

Silicon Web Process Development  

NASA Technical Reports Server (NTRS)

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.

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

1978-01-01

221

DreiserWebSource  

NSDL National Science Digital Library

Designed and maintained by the Annenberg Rare Book and Manuscript Library Collection at the University of Pennsylvania, the DreiserWebSource website brings together a host of written ephemera, original essays, and electronic texts related to the life and writings of Theodore Dreiser, the prominent American author. While the site doesn't have a formal search engine, the material is divided into four primary sections: Correspondence & Texts, Scholarly Essays, Reference Sources, and Still and Moving images. The Correspondence & Texts section is a delight unto itself, as it contains a host of digitized correspondence between Dreiser and colleagues over several decades and a special section dedicated to his ground-breaking novel, Sister Carrie. Along with several editions of the complete novel there are several essays about the novel's composition and historical context, along with a virtual exhibition curated by Nancy M. Shawcross from the Rare Book & Manuscript Library at Penn. The site also includes a rare 3-minute silent film of Dreiser from 1938 at Mt. Kisco, New York, taken by Robert Elias.

222

Web application security assessment tools  

Microsoft Academic Search

Security testing a Web application or Web site requires careful thought and planning due to both tool and industry immaturity. Finding the right tools involves several steps, including analyzing the development environment and process, business needs, and the Web application's complexity. Here, we describe the different technology types for analyzing Web applications and Web services for security vulnerabilities, along with

Mark Curphey; Rudolph Arawo

2006-01-01

223

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

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.

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

2007-01-01

224

WebQuests and Web 2.0 Screen Design  

Microsoft Academic Search

This study compared the designs of a traditional style WebQuest and a Web 2.0 style WebQuest in terms of their effectiveness as a teaching tool. The sample included 104 university sophomore students. Students were randomly assigned to two groups, with one group using the traditional style WebQuest and the other used the Web 2.0 style WebQuest. Data were collected (a)

Serhat Kurt

2010-01-01

225

Securing digital images  

Microsoft Academic Search

With the advent of the Internet and World Wide Web, images are being transferred over insecure channels from different parts of the world. Those who receive images may not exactly know where they have originated from or who their sender was. In those circumstances, determining the authenticity of received images would be extremely difficult and therefore providing authenticity to images

Chandrapal Kailasanathan

2003-01-01

226

New NSF Web Site Released  

NSF Publications Database

... br/>Media Advisory 05-001New NSF Web Site Released NSF's new Web site has been redesigned from the ... The National Science Foundation introduces a new Web site, entirely redesigned to better serve both ...

227

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

PubMed

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

Halic, Tansel; Ahn, Woojin; De, Suvranu

2014-01-01

228

Web Design Matters  

ERIC Educational Resources Information Center

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…

Mathews, Brian

2009-01-01

229

Ranking the web frontier  

Microsoft Academic Search

The celebrated PageRank algorithm has proved to be a very effective paradigm for ranking results of web search algorithms. In this paper we refine this basic paradigm to take into account several evolving prominent features of the web, and propose several algorithmic innovations. First, we analyze features of the rapidly growing \\

Nadav Eiron; Kevin S. McCurley; John A. Tomlin

2004-01-01

230

Web Spoofing 2001  

Microsoft Academic Search

The Web is currently the pre-eminent medium for electronic service delivery to remote users. As a consequence, authentication of servers is more important than ever. Even sophisticated users base their decision whether or not to trust a site on browser cues—such as location bar information, SSL icons, SSL warnings, certificate information, response time, etc. In their seminal work on web

Yougu Yuan; Eileen Zishuang Ye; Sean Smith

2001-01-01

231

Restful web services vs. \\  

Microsoft Academic Search

Recent technology trends in the Web Services (WS) domain in- dicate that a solution eliminating the presumed complexity of the WS-* standards may be in sight: advocates of REpresentational State Transfer (REST) have come to believe that their ideas ex- plaining why the World Wide Web works are just as applicable to solve enterprise application integration problems and to simplify

Cesare Pautasso; Olaf Zimmermann; Frank Leymann

2008-01-01

232

Wetlands and Web Pages.  

ERIC Educational Resources Information Center

Argues that the preservation of areas like the Shoreline Park (California) wetlands depends on educating students about the value of natural resources. Describes the creation of a Web page on the wetlands for third-grade students by seventh-grade art and ecology students. Outlines the technical process of developing a Web page. (DSK)

Tisone-Bartels, Dede

1998-01-01

233

Literature on the Web.  

ERIC Educational Resources Information Center

A teacher in the English education program at Buffalo State College describes her development of Web-based literature guides for preservice teachers to use in preparation and student teaching and for secondary-level English/language arts teachers to use in their classrooms. Discusses assembling materials for the web guide; an overview of site…

Deal, Nancy

2003-01-01

234

Esophageal Rings and Webs  

MedlinePLUS

... determine if you have a ring or a web, your doctor may order one of these tests: Barium swallow test. This allows the radiologist to ... contribute to the development of esophageal rings and webs, your doctor probably will order a blood test for iron levels and, if you are deficient, ...

235

Applying Semantic Web Services  

Microsoft Academic Search

The use of Semantic Web Services (SWS) for increasing agility and adaptability in process execution is currently investigated in many settings. The common underlying idea is the dynamic selection, composition and mediation - on the basis of available SWS descriptions - of the most adequate Web resource (services and data) to accomplish a specific process activity. In this paper we

Stefania Galizia; Alessio Gugliotta; Carlos Pedrinaci; John Domingue

2007-01-01

236

Factsheets Web Application.  

National Technical Information Service (NTIS)

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 t...

F. G. Vigil R. G. Reeder

2000-01-01

237

Web Database Development.  

National Technical Information Service (NTIS)

This thesis explores the concept of Web Database Development using Active Server Pages (ASP) and Java Server Pages (JSP). These are among the leading technologies in the web database development. The focus of this thesis was to analyze and compare the ASP...

N. A. Tsardas

2001-01-01

238

Towards Compressing Web Graphs  

Microsoft Academic Search

Abstract We consider the problem of compressing graphs of the link structure of the World Wide Web. We provide efficient algorithms for such compression that are motivated by recently proposed random graph models for describing the Web. The algorithms are based on reducing the compression problem to the problem of finding a minimum,spanning tree in a directed graph related to

Micah Adler; Michael Mitzenmacher

2001-01-01

239

Web application security engineering  

Microsoft Academic Search

Integrating security throughout the life cycle can improve overall Web application security. With a detailed review of the steps involved in applying security-specific activities throughout the software development life cycle, the author walks practitioners through effective, efficient application design, development, and testing. With this article, the author shares a way to improve Web application security by integrating security throughout the

J. D. Meier

2006-01-01

240

Securing Web applications  

Microsoft Academic Search

Web application vulnerabilities have become a major concern in software security. We will present major attack patterns, i.e. SQL injection, cross-site scripting, cross-site request forgery, JavaScript hijacking, and DNS rebinding, together with a survey and assessment of the countermeasures available to web application developers.

Dieter Gollmann

2008-01-01

241

Web Page Design.  

ERIC Educational Resources Information Center

Designing a web home page involves many decisions that affect how the page will look, the kind of technology required to use the page, the links the page will provide, and kinds of patrons who can use the page. The theme of information literacy needs to be built into every web page; users need to be taught the skills of sorting and applying…

Lindsay, Lorin

242

Searching the Web  

Microsoft Academic Search

We oer an overview of current Web search engine design. After introducing a generic search engine architecture, we examine each engine component in turn. We cover crawling, local Web page storage, indexing, and the use of link analysis for boosting search performance. The most common design and implementation techniques for each of these components are presented. We draw for this

Arvind Arasu; Junghoo Cho; Hector Garcia-molina; Andreas Paepcke; Sriram Raghavan

2001-01-01

243

Intelligent geospatial web services  

Microsoft Academic Search

A geospatial Web service is a modular application designed to enable the discovery, access, and chaining of geospatial information and services across the Web. Earth science applications are often both computing- and data-intensive that involve diverse sources of data and complex processing functions. It is often not only time-consuming but also difficult to find, obtain, and process heterogeneous geospatial information.

Liping Di; Peisheng Zhao; Wenli Yang; Genong Yu; Peng Yue

2005-01-01

244

Web Spam Taxonomy  

Microsoft Academic Search

Web spamming refers to actions intended to mislead search engines and give some pages higher ranking than they deserve. Recently, the amount of web spam has increased dramatically, leading to a degradation of search results. This paper presents a comprehen- sive taxonomy of current spamming techniques, which we believe can help in developing appropriate countermeasures.

Zoltán Gyöngyi; Hector Garcia-molina

2005-01-01

245

Web 2 Nowhere?  

ERIC Educational Resources Information Center

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…

Shapiro, Steven

2012-01-01

246

The Social Web  

ERIC Educational Resources Information Center

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…

Richardson, Will

2006-01-01

247

Personalisation of Web Search  

Microsoft Academic Search

The availability of web search has revolutionised the way people discover in- formation, yet as search services maintain larger and larger indexes they are in danger of becoming a victim of their own success. Many common searches can return a vast number of web pages, many of which will be irrelevant to the searcher, and of which only about ten

Kevin Keenoy; Mark Levene

2003-01-01

248

Searching the workplace web  

Microsoft Academic Search

The social impact from the World Wide Web cannot be underestimated, but technologies used to build the Web are also revolutionizing the sharing of business and government information within intranets. In many ways the lessons learned from the Internet carry over directly to intranets, but others do not apply. In particular, the social forces that guide the development of intranets

Ronald Fagin; Ravi Kumar; Kevin S. McCurley; Jasmine Novak; D. Sivakumar; John A. Tomlin; David P. Williamson

2003-01-01

249

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

PubMed Central

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.

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

2006-01-01

250

ChemWeb.com  

NSDL National Science Digital Library

ChemWeb.com is now the largest online chemical community in the world. ChemWeb.com is a unique resource which combines a huge range of information for those in research chemistry, the chemicals industries and related disciplines. Membership is completely free. ChemWeb.com members can access over 350 journals and 15 databases from a variety of publishers. A number of databases offer structure-based searching and manipulation of molecular structures. ChemWeb.com services include the Careers Centre in association with sciencejobs.com, Conference Centre, Bookstore and the online magazine, the alchemist, as well as several specialist Subject Areas based around specific chemical fields. More information on ChemWeb can be found in the User Guide.

251

AsyncHttpEvalRequest: A New Primitive for Downloading Web Applications Incrementally and Securely  

Microsoft Academic Search

The evolution of the World Wide Web has progressed from simple, classic Web pages with text and static images only to Web 2.0 pages with rich multimedia content, mashups and desktop-style applications. The cornerstone of Web 2.0 technologies is an API called XMLHttpRequest - an interface that allows network requests to be performed asynchronously without blocking the user interface of

Janne Kuuskeri; Tommi Mikkonen; Antero Taivalsaari

2009-01-01

252

Web Security and Online Identity Theft  

NSDL National Science Digital Library

This lecture describes the phishing problem, which involves deceptive email and malicious web sites that steal user passwords, and examines several current defenses against phishing attacks. The defenses developed by TRUST researchers include browser extensions that detect malicious web sites, create customized "hashed" passwords, leverage user-chosen images to identify servers, and modify browser cache and history behavior to prevent targeted phishing attacks. The lecturer will also describe the sobering results of user studies that examine why users are fooled by phishing, and consider what must be done in the future to help non-technical computer users understand the threats they face in today's networked computing environment.

Mitchell, John

2009-02-17

253

Learning on the Web  

NASA Astrophysics Data System (ADS)

It is commonplace to say that theWeb has changed everything.Machine learning researchers often say that their projects and results respond to that change with better methods for finding and organizing Web information. However, not much of the theory, or even the current practice, of machine learning take the Web seriously. We continue to devote much effort to refining supervised learning, but the Web reality is that labeled data is hard to obtain, while unlabeled data is inexhaustible. We cling to the iid assumption, while all the Web data generation processes drift rapidly and involve many hidden correlations. Many of our theory and algorithms assume data representations of fixed dimension, while in fact the dimensionality of data, for example the number of distinct words in text, grows with data size. While there has been much work recently on learning with sparse representations, the actual patterns of sparsity on the Web are not paid much attention. Those patterns might be very relevant to the communication costs of distributed learning algorithms, which are necessary at Web scale, but little work has been done on this.

Pereira, Fernando C. N.

254

Personal Monitoring of Web Information Exchange: Towards Web Lifelogging  

Microsoft Academic Search

With more and more services relying on the Web to com- municate with their users, the amount of information ex- changed daily by an individual through various Web chan- nels has become dicult to control. Not only have Web 2.0 applications participated to this increase from within the browser, but many other tools now rely on the Web as their

Mathieu d'Aquin; Salman Elahi; Enrico Motta

2010-01-01

255

Component based effective web crawler and indexer using web services  

Microsoft Academic Search

Designing and developing an effective web crawler is a challenging role in a large search engine. This paper proposes component based web crawler along with the indexer. The WebCrawler consist of crawler services and indexer services and realized as web services. The communication between the services is sent and received using XML, SOAP and WSDL. In the crawler service, the

A Vadivel; S. G Shaila; R. Devi Mahalakshmi; J. Karthika

2012-01-01

256

Manufacturing Deep Web Service Management: Exploring Semantic Web Technologies  

Microsoft Academic Search

Since the wide adoption of database and Web service technologies in cross-enterprise manufacturing collaboration, leveraging deep Web contents through service discovery has become one of the most advanced trends in the manufacturing field. However, the effective service discovery and knowledge retrieval from manufacturing deep Web services is still a critical issue because of the underlying intricate structures of deep Web

Zhang Wenyu; Yin Jianwei; Cai Ming; Wu Jian; Lin Lanfen

2012-01-01

257

Research Directions in Web Site Evolution II: Web Application Security  

Microsoft Academic Search

The growth of inexpensive bandwidth and the maturation of Web development technology have enabled a significant adoption of Web-based applications for interactions between customers and business, between businesses, and between citizens and institutions. However, those same improvements in bandwidth and corresponding rise in Web system complexity has also been of use to those with malicious intent. Thus Web security (the

Porfirio Tramontana; T. Dean; S. Tilley

2007-01-01

258

Web-CS: Infrastructure for Web-Based Competitions.  

ERIC Educational Resources Information Center

This paper presents a World Wide Web-based infrastructure for cooperation between many different parties. The infrastructure is designed for Web-based competitions involving an editorial board, designers of assignments or events, evaluators, different organizational layers, and contestants. Web-CS is entirely Web-based: all the communication…

Aerts, A. T. M.; Bierhoff, P. F. M.; De Bra, P. M. E.

259

Silicon web process development  

NASA Technical Reports Server (NTRS)

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.

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

1981-01-01

260

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.

261

Tufted fibrous web  

US Patent & Trademark Office Database

A fibrous web having a first surface and a second surface. The fibrous web has a first region and at least one discrete second region, the second region being a discontinuity on the second surface and being a tuft comprising a plurality of tufted fibers extending from the first surface. The tufted fibers define a distal portion, the distal portion comprising portions of the tufted fibers being bonded together. Bonding can be thermal melt-bonding. In another embodiment the second surface of the web can have non-intersecting or substantially continuous bonded regions, which also can be thermal melt-bonding.

2010-03-23

262

CICLOPS : The Cassini Imaging Page  

NSDL National Science Digital Library

The CICLOPS site contains a flight log, updates, and images from the Cassini mission to the outer planets. NASA is releasing new pictures almost every day on the Cassini Imaging Central Laboratory Operations (CICLOPS) web site.

Mcewen, Alfred; Brahic, Andre; Ingersoll, Andrew; Del Genio, Anthony; Murray, Carl; Porco, Carolyn

2007-12-12

263

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)

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

2012-05-01

264

Deep Web Queries in a Semantic Web Environment  

Microsoft Academic Search

Access to Deep Web sources is concerned with querying data that is hidden behind Web forms and primarily not accessible by\\u000a common query languages. Web forms do not contain any type information, and it thus follows that Deep Web sources only work\\u000a on string data in its rudimentary form. In this paper, we demonstrate how Semantic Web technologies can be

Thomas Hornung; Wolfgang May

2009-01-01

265

WebMon: A Performance Profiler for Web Transactions  

Microsoft Academic Search

We describe WebMon, a tool for correlated, transaction- oriented performance monitoring of web services. Data collected with WebMon can be analyzed from a variety of perspectives: business, client, transaction, or systems. Maintainers of web services can use such analysis to better understand and manage the performance of their services. Moreover, WebMon's data will enable the construction of more accurate performance

Thomas Gschwind; Kave Eshghi; Pankaj K. Garg; Klaus Wurster

2002-01-01

266

Virtuous, Virtual Access: Making Web Pages Accessible to People with Disabilities.  

ERIC Educational Resources Information Center

Describes tools that make the Web more accessible for people with disabilities and lists some of the basic rules for designing a page layout, focusing on HTML, color, buttons, images, links, image map, forms, columns and frames, applets and plug-ins. Discusses how to evaluate the Web page. (AEF)

Kautzman, Amy M.

1998-01-01

267

Issues in Web Content Replication  

Microsoft Academic Search

Web content replication began as explicit manual mirroring of Web sites. It has since evolved into user- transparent request distribution among a static set of mirr ors. The next step (especially important for large-scale Web hosting service providers) is dynamic cont ent replication, where object replicas are cre- ated, deleted, or migrated among Web hosts in response to cha nging

Michael Rabinovich

1998-01-01

268

DEQUE: querying the deep web  

Microsoft Academic Search

In this paper, we present a system called DEQUE (Deep WEb QUery SystEm) for modeling and querying the deep Web. We propose a data model for representing and storing HTML forms, and a web form query language called DEQUEL for retrieving data from the deep Web and storing them in the format convenient for additional processing. Our system is able

Denis Shestakov; Sourav S. Bhowmick; Ee-peng Lim

2005-01-01

269

Dynamic Ontologies on the Web  

Microsoft Academic Search

We discuss the problems associated with managing ontologies in distributed environments such as the Web. The Web poses unique problems for the use of ontologies because of the rapid evolution and autonomy of web sites. We present SHOE, a web-based knowledge representation language that supports multiple versions of ontologies. We describe SHOE in the terms of a logic that separates

Jeff Heflin; James A. Hendler

2000-01-01

270

Estimating difference of Web services  

Microsoft Academic Search

To organize similar Web services for more precise service discovery and easy service composition, it is important to predict the difference of two Web services. Furthermore, to provide a quantified measure on the differences of Web service turns out to be a key enabler for understanding Web services. In this paper, we present a model designed to measure the difference

Qianhui Liang; Stuart H. Rubin

2010-01-01

271

Security principles for web applications  

Microsoft Academic Search

In the recent time we have witnessed an expansion of web applications, which are offering a wide range of public and business services. The web applications are efficient and convenient, however, increasing number of new security threats is a risk for both users of web applications and the companies which are offering their services through web applications. In order to

Tamara M. Tanaskovic; Miodrag Z. Zivkovic

2011-01-01

272

Engineering Web Applications for Reuse  

Microsoft Academic Search

In this paper we present Web design frameworks as a conceptual approach to maximize reuse in Web applications. We first analyze the current state of the art of Web applications design, stating the need for an approach that clearly separates concerns (conceptual, navigational, interface). We briefly introduce the OOHDM approach for Web applications design. We next focus on the problem

Daniel Schwabe; Luiselena Esmeraldo; Gustavo Rossi; Fernando Lyardet

2001-01-01

273

The W's of Web Design.  

ERIC Educational Resources Information Center

Focuses on the pre-design questions that a Web site designer and client need to address. Discusses the why, who, what, where, and when phases of the Web site design process. Includes a Web Site Development Form to guide site designs through the first two stages of Web site development: specification and design. (AEF)

Finnegan, John; Griffin, Jeffrey A.

2000-01-01

274

Learning from WebQuests  

ERIC Educational Resources Information Center

WebQuests are activities in which students use Web resources to learn about school topics. WebQuests are advocated as constructivist activities and ones generally well regarded by students. Two experiments were conducted in school settings to compare learning using WebQuests versus conventional instruction. Students and teachers both enjoyed…

Gaskill, Martonia; McNulty, Anastasia; Brooks, David W.

2006-01-01

275

Dynamic Ontologies on the Web.  

National Technical Information Service (NTIS)

We discuss the problems associated with managing ontologies in distributed environments such as the Web. The Web poses unique problems for the use of ontologies because of the rapid evolution and autonomy of web sites. We present SHOE, a web-based knowled...

J. Heflin J. Hendler

2000-01-01

276

Toward the semantic geospatial web  

Microsoft Academic Search

With the growth of the World Wide Web has come the insight that currently available methods for finding and using information on the web are often insufficient. In order to move the Web from a data repository to an information resource, a totally new way of organizing information is needed. The advent of the Semantic Web promises better retrieval methods

Max J. Egenhofer

2002-01-01

277

Web-based Hyper Suprime-Cam Data Providing System  

NASA Astrophysics Data System (ADS)

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.

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

278

Silicon web process development  

NASA Technical Reports Server (NTRS)

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.

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

1977-01-01

279

Spider webs: Damage control  

NASA Astrophysics Data System (ADS)

A study reveals that spider orb webs fail in a nonlinear fashion, owing to the hierarchical organization of the silk proteins. The discovery may serve as inspiration for engineers for the design of aerial, light-weight, robust architectures.

Omenetto, Fiorenzo G.; Kaplan, David L.

2012-04-01

280

Welcome to the Web  

NSDL National Science Digital Library

Welcome to the Web is a great place to learn the basics of using the Internet and the World Wide Web. It is tailored to children, but if inexperienced adults can get past the cartoon drawings, anyone can benefit from the site. The first section provides an overview of the Internet and some terminology. Next is a section on guestbooks, followed by an overview of Web browsers. "Searching the Net" and research techniques comprise the last two sections. Each category consists of several interactive Web pages that lead the user through each step. Once the user has completed the sections, he/she can try the challenge that tests all of the previous materials.

281

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.

282

Internet Web Text  

NSDL National Science Digital Library

_Internet Web Text_ links users to information about Internet orientation, guides, reference materials, browsing and exploring tools, subject- and word-oriented searching tools, and information about connecting with people.

283

WEBS: Practicing Faculty Mentorship  

NSDL National Science Digital Library

This article examines the WEBS (Women Evolving the Biological Sciences) symposium which addresses the conditions that have led to inadequate numbers of women in postdoctoral, tenure-track, and tenured faculty positions.

Samantha Katz (AIBS;)

2008-02-01

284

Food Chains and Webs  

NSDL National Science Digital Library

In this activity, learners investigate feeding relationships. Learners complete a food web and then make a mobile to represent a food chain. Use this activity to talk about predator/prey relationships and ecosystems.

Council, Biotechnology A.

2012-06-26

285

Web Page Evaluations  

NSDL National Science Digital Library

Use the two chemical element web sites below to evaluate which site is more reliable. Which is more authoritative? Which is more accurate? Which is more current? How does their coverage or detail compare? Is there advertising on the page? Is there bias or objectivity? ChemicalElements.com Web Elements Evaluation Criteria by Susan E. Beck - links to a page that will help you evaluate each website. ...

Schultz, Ms.

2010-05-06

286

Enabling WebGL  

Microsoft Academic Search

WebGL leverages the power of OpenGL to present accelerated 3D graphics on a webpage. The ability to put hardware- accelerated 3D content in the browser will provide a means for the creation of new web based applications that were previously the exclusive domain of the desktop environment. It will also allow the inclusion of features that standalone 3D applications do

Catherine Leung; Andor Salga

2010-01-01

287

Angiosperm Phylogeny Web site  

NSDL National Science Digital Library

From the Missouri Botanical Gardens, this Web site provides a classification of angiosperms that can be navigated either by phylogenic tree, Order, or Family. A detailed description of the classification system is provided by the author, along with literature references and links to other related Web sites. Descriptions of each Family and Order include synonyms and the geographic range in which each is found. Users with a background in botany will find this a useful resource.

Stevens, P. F.

2001-01-01

288

Photosynthesis Web resources.  

PubMed

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

Orr, Larry; Govindjee

2013-07-01

289

Computer vision on the World Wide Web  

NASA Astrophysics Data System (ADS)

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.

Marshall, A. David

1995-10-01

290

Webs and posets  

NASA Astrophysics Data System (ADS)

The non-Abelian exponentiation theorem has recently been generalised to correlators of multiple Wilson line operators. The perturbative expansions of these correlators exponentiate in terms of sets of diagrams called webs, which together give rise to colour factors corresponding to connected graphs. The colour and kinematic degrees of freedom of individual diagrams in a web are entangled by mixing matrices of purely combinatorial origin. In this paper we relate the combinatorial study of these matrices to properties of partially ordered sets (posets), and hence obtain explicit solutions for certain families of web-mixing matrix, at arbitrary order in perturbation theory. We also provide a general expression for the rank of a general class of mixing matrices, which governs the number of independent colour factors arising from such webs. Finally, we use the poset language to examine a previously conjectured sum rule for the columns of web-mixing matrices which governs the cancellation of the leading subdivergences between diagrams in the web. Our results, when combined with parallel developments in the evaluation of kinematic integrals, offer new insights into the all-order structure of infrared singularities in non-Abelian gauge theories.

Dukes, M.; Gardi, E.; McAslan, H.; Scott, D. J.; White, C. D.

2014-01-01

291

Soft Semantic Web services agent  

Microsoft Academic Search

Web services play an active role in the business integration and other fields such as bioinformatics. Current Web services technologies such as WSDL, UDDI, BPEL4WS and BSML are not semantic-oriented. Several proposals have been proposed to develop Semantic Web services to facilitate the discovery of relevant Web services [1][8]. In our vision, with the mature of Semantic Web services technologies,

Haibin Wang; Yan-Qing Zhang; Rajshekhar Sunderraman

2004-01-01

292

A load balance algorithm for WMS [Web Map Service  

Microsoft Academic Search

Web Map Service (WMS) provides spatial information to Internet users by map images. Commonly, spatial data are stored as vector data. It is a long job to create map images from vector data. To reduce the time cost, we employ Linux cluster. When a map is requested, coordinates scope that is a rectangle defined with xmin, ymin, xmax, ymax must

Pancheng Wang; Chongjun Yang; Zhanfu Yu; Yingchao Ren

2004-01-01

293

Automatic Caption Localization for Photographs on World Wide Web Pages.  

ERIC Educational Resources Information Center

Explores the indirect method of locating for indexing the likely explicit and implicit captions of photographs, using multimodal clues including the specific words used, syntax, surrounding layout of the Web page, and general appearance of the associated image. The MARIE-3 system thus avoids full image processing and full natural-language…

Rowe, Neil C.; Frew, Brian

1998-01-01

294

Ohio State University WebGarden  

NSDL National Science Digital Library

The large public state universities scattered around the United States continue to provide tremendously valuable outreach services through their numerous organizational units, and more and more of them offer their services via a panoply of websites. One such omnibus-style site is The Ohio State University's WebGarden. This site serves as a collection of fine online resources dedicated to providing information about the world of gardening, and about plants, more generally. The "PlantFacts" area is one worth taking a look at, as it contains several important digital collections, including an image database of high-quality plant images and a FAQ section which provides answers to over 800 gardening queries. Equally compelling is the Pocket Gardener, which is a selection of webpages that have been developed especially for both PocketPC and Palm PDA users. These web pages contain material on grasses, perennials, and vines, and five other important topics.

295

Factsheets Web Application  

SciTech Connect

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.

VIGIL,FRANK; REEDER,ROXANA G.

2000-10-30

296

Web-based Curriculum  

PubMed Central

OBJECTIVE To address the need for women's health education by designing, implementing, and evaluating a self-study, web-based women's health curriculum. DESIGN Cohort of students enrolled in the ambulatory portion of the medicine clerkship with comparison group of students who had not yet completed this rotation. PARTICIPANTS/SETTING Third- and fourth-year medical students on the required medicine clerkship (115 students completed the curriculum; 158 completed patient-related logs). INTERVENTION Following an extensive needs assessment and formulation of competencies and objectives, we developed a web-based women's health curriculum completed during the ambulatory portion of the medicine clerkship. The modules were case based and included web links, references, and immediate feedback on posttesting. We discuss technical issues with implementation and maintenance. MEASUREMENTS AND MAIN RESULTS We evaluated this curriculum using anonymous questionnaires, open-ended narrative comments, online multiple-choice tests, and personal digital assistant (PDA) logs of patient-related discussions of women's health. Students completing the curriculum valued learning women's health, preferred this self-directed learning over lecture, scored highly on knowledge tests, and were involved in more and higher-level discussions of women's health with faculty (P <.001). CONCLUSIONS We present a model for the systematic design of a web-based women's health curriculum as part of a medicine clerkship. The web-based instruction resolved barriers associated with limited curriculum time and faculty availability, provided an accessible and standard curriculum, and met the needs of adult learners (with their motivation to learn topics they value and apply this knowledge in their daily work). We hypothesize that our web-based curriculum spurred students to later discuss these topics with faculty. Web-based learning may be particularly suited for women's health because of its multidisciplinary nature and need for vertical integration throughout medical school curricula.

Zebrack, Jennifer R; Mitchell, Julie L; Davids, Susan L; Simpson, Deborah E

2005-01-01

297

Web-accessible cervigram automatic segmentation tool  

NASA Astrophysics Data System (ADS)

Uterine cervix image analysis is of great importance to the study of uterine cervix cancer, which is among the leading cancers affecting women worldwide. In this paper, we describe our proof-of-concept, Web-accessible system for automated segmentation of significant tissue regions in uterine cervix images, which also demonstrates our research efforts toward promoting collaboration between engineers and physicians for medical image analysis projects. Our design and implementation unifies the merits of two commonly used languages, MATLAB and Java. It circumvents the heavy workload of recoding the sophisticated segmentation algorithms originally developed in MATLAB into Java while allowing remote users who are not experienced programmers and algorithms developers to apply those processing methods to their own cervicographic images and evaluate the algorithms. Several other practical issues of the systems are also discussed, such as the compression of images and the format of the segmentation results.

Xue, Zhiyun; Antani, Sameer; Long, L. Rodney; Thoma, George R.

2010-03-01

298

Research on the Web: Snapshots of Antarctica  

NSDL National Science Digital Library

This Web research activity gives students a broad overview of Antarctica. They are asked to work as scientists, making predictions and observations and recording their findings. All directions are included in a printable handout. Students begin by gathering background information on Antarctica and polar research. They then view images of Antarctica taken from space and ones that compare its size to the United States. They end by answering questions about Antarctica's size, physical conditions, and why scientists conduct research there.

299

Wired to the web  

SciTech Connect

Once the domain of engineering techies and university computer gurus, the Internet has taken a popular route into business and homes. With the breakthrough of the World Wide Web (the Web), use of the Internet has grown astonishingly, doubling each year for the last couple of years. Many think that Internet usage is shallow and short term, but other companies are becoming less skeptical. Marketing and communications are two reasons why utilities, businesses, and organizations of all sorts are setting up shop on the Web. Corporation and associations have established home pages where a company can disseminate information about itself. the number of Web sites doubles every 53 days. Electric utilities have taken note of the number of users and about 40 had developed home pages as of Labor Day. This article examines some of these utilities and how they are using their Web sites to provide not only standard corporate information, press releases, and financial information, but also to personalize their contact with their customer base.

Stoddard, B.C.

1995-11-01

300

Stardial: an Autonomous Astronomical Camera on the World Wide Web  

Microsoft Academic Search

We describe the use of an autonomous astronomical camera, called ``Stardial,'' for undergraduate instruction. Stardial delivers images of the night sky nearly in real-time to the world wide web (www.astro.uiuc.edu\\/~stardial\\/). The world wide web (WWW) interface is robust, inexpensive, and accommodates many students asynchronously with respect to the instructor(s). The guiding philosophy is to provide students with authentic astronomical data

P. McCullough; U. Thakkar

1997-01-01

301

WEB-IS (Integrated System): An Overall View  

NASA Astrophysics Data System (ADS)

Researchers in the geosciences are being faced with a deluge of large-scale datasets that needs to be analyzed in a fast and efficient manner. We have developed an interactive web-based scheme for data-mining large datasets using three distinct techniques. Collectively WEB-IS (Web-Based Integrated System) is a webservice based on a client-server paradigm which employs the power of a server to provide visualization and data analysis capabilities to multiple clients remotely. WEB-IS1 (http://boy.msi.umn.edu/web-is) extracts multi-resolutional structures in seismic catalogs through cluster analysis. Off-screen rendering is then applied on the server which allows the client to view the results in 3-D. WEB-IS2 (http://boy.msi.umn.edu/amira) exploits the ease of use in the powerful visualization package Amira (www.amiravis.com) through a web-based module which allows for manipulating and analyzing 3-D datasets. WEB-IS3 (http://tomo.msi.umn.edu/~max) is an imaging service which displays selected features from a low resolution environment to one with increased resolution by zooming into the data. Our software uses a combination of programming languages to seamlessly integrate server-side processing with client-side interaction utilities. Fast two-way communication between client and server will be considered for GRID purposes using SOAP (Livingston, D., Advanced SOAP for Web development, Prentice Hall, 2002). Future use of WEB-IS in the GRID computing environment is also being explored using the Narada-Brokering (www.naradabrokering.org) method. Our aim with this software tool is to overcome the hardware limitations of a thin client by harnessing the power of a large visualization server using a simple web interface.

Kadlec, B. J.; Yang, X.; Wang, Y.; Bollig, E. F.; Garbow, Z. A.; Yuen, D. A.; Erlebacher, G.

2003-12-01

302

Learning from WebQuests  

NASA Astrophysics Data System (ADS)

WebQuests are activities in which students use Web resources to learn about school topics. WebQuests are advocated as constructivist activities and ones generally well regarded by students. Two experiments were conducted in school settings to compare learning using WebQuests versus conventional instruction. Students and teachers both enjoyed WebQuest instruction and spoke highly of it. In one experiment, however, conventional instruction led to significantly greater student learning. In the other, there were no significant differences in the learning outcomes between conventional versus WebQuest-based instruction.

Gaskill, Martonia; McNulty, Anastasia; Brooks, David W.

2006-04-01

303

SeaWeb  

NSDL National Science Digital Library

SeaWeb is a nonprofit organization aimed at raising awareness of the ocean and marine life that play "a critical role in our everyday life and in the future of our planet." SeaWeb employs a team of professionals from biology, exploration, and various communication disciplines. The current campaigns include an effort to protect the declining Caspian Sea Sturgeon ("the source of most of the world's caviar"), an attempt to reduce overfishing of swordfish, and a report about the changes occurring in the world's oceans. This Web site is a robust source of information about many threats that are facing marine ecosystems, and an attempt to reduce the dangers by educating the public about the impacts of their behavior.

1996-01-01

304

The Learning Web  

NSDL National Science Digital Library

Here is a new, rich resource for K-12 teachers and students from the US Geological Survey (USGS). The Learning Web provides online lesson plans, activities, tutorials (some downloadable and printable in .pdf), and links to references dealing with interdisciplinary studies of natural science. For example, the Exploring Caves section (1-3 level) covers the basic geology of caves, life habits of cave-dwelling organisms, and cave safety and conservation. Other topics explored on the Learning Web include maps, climate, wildlife, earth processes, and more. Learning Web culls pages appropriate for K-12 instruction from the USGS's vast online collection of factsheets, data, and program sites, allowing teachers and students to spend time learning rather than searching. However, because this site is so full of information, it can be tricky to navigate and important sections can be missed, so try using their search engine to find specific topics. Note also that elementary content is much more abundant here than secondary.

2001-01-01

305

Neuroscience Web Search  

NSDL National Science Digital Library

Neuroscience Web Search, created by Fred K. Lenherr of the Applied Computing Systems Institute, attempts to provide interested users with a searchable index of over 112,000 web pages related to neuroscience. It "includes the home pages of neuroscientists, neuro-medical links, and computational neuroscience." Users can search on the text and/or titles of pages. This search tool is similar to Argos (discussed in the November 1, 1996 Scout Report). The difference is that whereas Argos is both quite clear about the sources of its database and is peer reviewed, Neuroscience Web Search is neither. It is a much larger local subject search engine, but it is more difficult to assess the quality of the materials retrieved.

Lenherr, Fred K.

1996-01-01

306

Museums and the Web  

NSDL National Science Digital Library

Museums have been gravitating to the web for over a decade in order to educate the public about their collections, and in recent years, they have also used the web to form online communities for themselves. Museums and the Web is one of the ways that museum specialists can gather together to learn more about each others work, and also to engage in online discussion and research activities. First-time visitors to the site should take a look through some of these ongoing discussions, which include discussions about educational practices and in-house evaluation practices. The site includes an impressive search engine which allows users to look for previously submitted papers and comments. Visitors can access most of the material here without officially registering, but should they wish to do so, they will also be able to use the site to network with colleagues at different institutions.

307

Image Digestion and Relevance Feedback in the ImageRover WWW Search Engine  

Microsoft Academic Search

ImageRover is a search by image content navigation tool for the world wide web. The staggering size of the WWW dictates certain strategies and algorithms for image collection, digestion, indexing, and user interface. This pa- per describes two key components of the ImageRover strat- egy: image digestion and relevance feedback. Image di- gestion occurs during image collection; robots digest the

Leonid Taycher; Marco La Cascia

1997-01-01

308

NCI Announces New Web Design and Usability Web Site  

Cancer.gov

In an effort to substantially improve the usefulness and accessibility of federal government health information on the World Wide Web, the National Cancer Institute has launched a new Web site called Usability.gov (http://usability.gov).

309

Web site blues.  

PubMed

So far, Rachel Soltanoff's instincts had been right. As CEO in this fictional case study, she had successfully navigated TradeRite Software's transition from a news service for stockbrokers to a $70 million provider of shrink-wrapped software geared toward both brokers and the growing day-trader market. Now a well-financed start-up, Stock-net.com, was testing a very competitive product that traders could download directly over the Web. And TradeRite's Web site was nothing more than a collection of elaborate marketing brochures. Rachel knew she needed to start selling over the Web. But the e-commerce consultants she had hired to set up her Web store were behind schedule, and their 21-year-old CEO had just resigned. Her product manager, Lisa Bandini, was working overtime to transform TradeRite's entire product line into Web-aware applications to match Stocknet's, and Rachel had $2.5 million to launch them. But the consultants said it would take $5 million just to rent e-commerce capabilities. Ace sales VP Brian Rockart thought the company had already wasted too much time and money--money from his budget--on its Web site. Marketing VP Rob Collins thought TradeRite should focus on its core stockbroker customers. Chief Technical Officer Joe Martinez doesn't want to go ahead without a pilot project. Should Rachel try to convince Brian, Rob, and the rest of the senior management team that e-commerce is the way to go? Four commentators offer advice. PMID:10387770

Maruca, R F

1999-01-01

310

JayDoc HistoWeb  

NSDL National Science Digital Library

JayDoc HistoWeb, provided by two medical students at the University of Kansas, is a frames-based site that provides hundreds of microscopic anatomical images, topically arranged in 19 categories ranging from blood & bone marrow to vascular system. Each image is accompanied by a short annotation and scale bar. Interested users have the option of clicking a button for a much larger view. Note that though this site is extremely graphical and may be a challenge to those with slow connections, it is a treasure house of anatomical information.

Scarbrough, Marc.; Wolf, Milton.

1996-01-01

311

Inferring photographic location using geotagged web images  

Microsoft Academic Search

Geotagging has become a recent phenomenon that allows users to visualize and manage photo collections in many new and interesting\\u000a ways. Unfortunately, manual geotagging of a large collection of pictures on the globe is still a time-consuming and laborious\\u000a task even though geotagging devices are gradually being adopted. At the same time, there exist billions of legacy pictures\\u000a taken before

Dhiraj Joshi; Andrew Gallagher; Jie Yu; Jiebo Luo

312

Web Inquiry Projects  

NSDL National Science Digital Library

Developed by Philip E. Molebash of San Diego State University, Web Inquiry Projects (WIP) offers ideas for inquiry-based learning that reach "higher levels of inquiry" than typically achieved by the more familiar WebQuest model. You'll find a good selection of examples in history and the humanities (as well as math and science). Each example includes a detailed teacher version and a student version with just the project prompt. The goal is to provide teachers with everything they need to sharpen their inquiry-teaching skills.

2009-01-01

313

The Brownian web.  

PubMed

Arratia, [Arratia, R. (1979) Ph.D. thesis (University of Wisconsin, Madison) and unpublished work] and later Toth and Werner [Toth, B. & Werner, W. (1998) Probab. Theory Relat. Fields 111, 375-452] constructed random processes that formally correspond to coalescing one-dimensional Brownian motions starting from every space-time point. We extend their work by constructing and characterizing what we call the Brownian Web as a random variable taking values in an appropriate (metric) space whose points are (compact) sets of paths. This leads to general convergence criteria and, in particular, to convergence in distribution of coalescing random walks in the scaling limit to the Brownian Web. PMID:12451173

Fontes, L R G; Isopi, M; Newman, C M; Ravishankar, K

2002-12-10

314

The Brownian Web  

PubMed Central

Arratia, [Arratia, R. (1979) Ph.D. thesis (University of Wisconsin, Madison) and unpublished work] and later Toth and Werner [Toth, B. & Werner, W. (1998) Probab. Theory Relat. Fields111, 375–452] constructed random processes that formally correspond to coalescing one-dimensional Brownian motions starting from every space-time point. We extend their work by constructing and characterizing what we call the Brownian Web as a random variable taking values in an appropriate (metric) space whose points are (compact) sets of paths. This leads to general convergence criteria and, in particular, to convergence in distribution of coalescing random walks in the scaling limit to the Brownian Web.

Fontes, L. R. G.; Isopi, M.; Newman, C. M.; Ravishankar, K.

2002-01-01

315

Web White & Blue 2000  

NSDL National Science Digital Library

Released earlier this year, Web White & Blue 2000 is intended to "help voters, journalists, and others use the Internet to learn more about the presidential candidates, their campaigns, their scheduled debates this fall as well as the way the online resources are impacting politics in this presidential election year." The Best of the Best section provides links to election coverage and campaign material from a wide range of sources on the Internet. Beginning on October 1, the Rolling Cyber Debate is intended to provide a forum for candidates and their campaigns to continue debates online between the televised ones. Web White and Blue 2000 is supported by the Markle Foundation.

316

Incorporating web browsing activities into anchor texts for web search  

Microsoft Academic Search

Anchor texts complement Web page content and have been used extensively in commercial Web search engines. Existing methods\\u000a for anchor text weighting rely on the hyperlink information which is created by page content editors. Since anchor texts are\\u000a created to help user browse the Web, browsing behavior of Web users may also provide useful or complementary information for\\u000a anchor text

Bo ZhouYiqun; Yiqun Liu; Min Zhang; Yijiang Jin; Shaoping Ma

2011-01-01

317

Methodology for Localized and Accessible Image Formation and Elucidation  

ERIC Educational Resources Information Center

Accessibility is one of the key checkpoints in all software products, applications, and Web sites. Accessibility with digital images has always been a major challenge for the industry. Images form an integral part of certain type of documents and most Web 2.0-compliant Web sites. Individuals challenged with blindness and many dyslexics only make…

Patil, Sandeep R.; Katiyar, Manish

2009-01-01

318

Using incremental Web log mining to create adaptive web servers  

Microsoft Academic Search

Personalization of content returned from a Web site is an important problem in general and affects e-commerce and e-services in particular. Targeting appropriate information or products to the end user can significantly change (for the better) the user experience on a Web site. One possible approach to Web personalization is to mine typical user profiles from the vast amount of

Tapan Kamdar; Anupam Joshi

2005-01-01

319

Reconstruction of web forms for efficient web search  

Microsoft Academic Search

Websites, notable by URLs are large collection of Web pages. They make a huge database of heterogeneous information gathered and collected distributive. The accumulated information is differentiated on the basis of certain templates, their URLs and information contained in these pages. In this research, we mainly concentrate on Web-forums. In the current circumstances, a Web crawler crawls all the Page

Namita Mittal; M. C. Govil; Richi Nayak; Neeraj Jain

2009-01-01

320

Designing Effective Web Forms for Older Web Users  

ERIC Educational Resources Information Center

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…

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

2012-01-01

321

Combined Web\\/mobile authentication for secure Web access control  

Microsoft Academic Search

Previous Web access authentication systems have used either the Web or the mobile channel individually to confirm the claimed identity of the remote user. Both approaches proved to be insecure when used in isolation. An investigation is presented into the enhanced security of a new combined Web\\/mobile authentication system. The hybrid system enables a strong authentication by augmenting the traditional

Ali Al-Qayedi; Wael Adi; Ahmed Zahro; Ali Mabrouk

2004-01-01

322

Towards Improving Web Service Repositories through Semantic Web Techniques  

Microsoft Academic Search

The success of the Web services technology has brought top- ics as software reuse and discovery once again on the agenda of software engineers. While there are several eorts towards automating Web ser- vice discovery and composition, many developers still search for services via online Web service repositories and then combine them manually. However, from our analysis of these repositories,

Marta Sabou

323

Measuring Web Application Quality with WebQEM  

Microsoft Academic Search

This article discusses using WebQEM, a quantitative evaluation strategy to assess Web site and application quality. Defining and measuring quality indicators can help stakeholders understand and improve Web products. An e-commerce case study illustrates the methodology's utility in systematically assessing attributes that influence product quality

Luis Olsina; Gustavo Rossi

2002-01-01

324

Personalizing Web Directories with the Aid of Web Usage Data  

Microsoft Academic Search

This paper presents a knowledge discovery framework for the construction of Community Web Directories, a concept that we introduced in our recent work, applying personalization to Web directories. In this context, the Web directory is viewed as a thematic hierarchy and personalization is realized by constructing user community models on the basis of usage data. In contrast to most of

Dimitrios Pierrakos; Georgios Paliouras

2010-01-01

325

Bridging the gap between web application firewalls and web applications  

Microsoft Academic Search

Web applications are the Achilles heel of our current ICT in- frastructure. NIST's national vulnerability database clearly shows that the percentage of vulnerabilities located in the application layer increases steadily. Web Application Fire- walls (WAFs) play an important role in preventing exploita- tion of vulnerabilities in web applications. However, WAFs are very pragmatic and ad hoc, and it is very

Lieven Desmet; Frank Piessens; Wouter Joosen; Pierre Verbaeten

2006-01-01

326

Code AI Personal Web Pages  

NASA Technical Reports Server (NTRS)

The document consists of a publicly available web site (george.arc.nasa.gov) for Joseph A. Garcia's personal web pages in the AI division. Only general information will be posted and no technical material. All the information is unclassified.

Garcia, Joseph A.; Smith, Charles A. (Technical Monitor)

1998-01-01

327

Guide to Healthy Web Surfing  

MedlinePLUS

... Videos & Cool Tools ESPAÑOL MedlinePlus Guide to Healthy Web Surfing To use the sharing features on this ... when evaluating the quality of health information on Web sites? Here are some suggestions based on our ...

328

Web Browser Security Update Effectiveness  

NASA Astrophysics Data System (ADS)

We analyze the effectiveness of different Web browser update mechanisms on various operating systems; from Google Chrome's silent update mechanism to Opera's update requiring a full re-installation. We use anonymized logs from Google's world wide distributed Web servers. An analysis of the logged HTTP user-agent strings that Web browsers report when requesting any Web page is used to measure the daily browser version shares in active use. To the best of our knowledge, this is the first global scale measurement of Web browser update effectiveness comparing four different Web browser update strategies including Google Chrome. Our measurements prove that silent updates and little dependency on the underlying operating system are most effective to get users of Web browsers to surf the Web with the latest browser version.

Duebendorfer, Thomas; Frei, Stefan

329

Querying the World Wide Web  

Microsoft Academic Search

The World Wide Web is a large, heterogeneous, distributed collection of documents connected by hypertext links. The most common technology currently used for search- ing the Web depends on sending information retrieval requests to \\

Alberto O. Mendelzon; George A. Mihaila; Tova Milo

1997-01-01

330

Web Processing Service for assisted land cover classification  

NASA Astrophysics Data System (ADS)

The Orfeo Toolbox (OTB - http://www.orfeo-toolbox.org/) is an Open Source Remote Sensing Image Processing software library developed by CNES. The aim of the toolbox is to gather a large number of state of the art algorithms for building processing chains for satellite images. Using the constellation server (http://www.constellation-sdi.org/), we exposed the main OTB processing chains as Web Processing Services (WPS). The WPS provides rules for standardizing inputs and outputs for invoking geospatial processing services. These services are managed from a web browser using the mapshup web client (http://mapshup.info). mapshup supports both synchronous and asynchronous processes and offers direct visualisation of results. The whole system provides user a complete and comprehensive image processing chain to produce land cover classification from satellite orthoimagery.

Gasperi, Jérôme; Peyrega, Charles; Dinot, Sébastien; Boileau, Quentin; Manin, Alexis; Heurteaux, Vincent

2013-04-01

331

WHAT: Web Hosting Analysis Tool  

Microsoft Academic Search

IntroductionAs the Web increasingly becomes a core element of business strategy, the task of hosting web contenthas become mission critical. Few companies, however, have the resources, money and expertise tobuild their web site entirely in-house. For this reason, many businesses choose to outsource theirWeb hosting to Internet Service Providers and some equipment vendors which, according to ForresterResearch Inc., can slash

Ludmila Cherkasov; Mohan DeSouza

332

Query Optimization over Web Services  

Microsoft Academic Search

Web services are becoming a standard method of sharing data and functionality among loosely-coupled systems. We propose a general- purpose Web Service Management System (WSMS) that enables querying multiple web services in a transparent and integrated fash- ion. This paper tackles a first basic WSMS problem: query opti- mization for Select-Project-Join queries spanning multiple web ser- vices. Our main result

Utkarsh Srivastava; Kamesh Munagala; Jennifer Widom; Rajeev Motwani

2006-01-01

333

Supporting Web Search with Visualization  

Microsoft Academic Search

\\u000a One of the fundamental goals of Web-based support systems is to promote and support human activities on the Web. The focus\\u000a of this Chapter is on the specific activities associated with Web search, with special emphasis given to the use of visualization\\u000a to enhance the cognitive abilities of Web searchers. An overview of information retrieval basics, along with a focus

Orland Hoeber; Xue Dong Yang

2010-01-01

334

Web Warehousing: Design and Issues  

Microsoft Academic Search

\\u000a The World Wide Web is a distributed global information resource. It contains a large amount of information that have been\\u000a placed on the web independently by different organizations and thus, related information may appear across different web sites.\\u000a To manage and access heterogeneous information on WWW, we have started a project of building a web warehouse, called Whoweda (Warehouse of

Sourav S. Bhowmick; Sanjay Kumar Madria; Wee Keong Ng; Ee-peng Lim

1998-01-01

335

Advanced dendritic web growth development  

NASA Technical Reports Server (NTRS)

Computer specifications for low stress dendritic crystal web growth configurations having thermal elements in fixed positions were developed, as well as computer specifications for web growth incorporating dynamic positioning of thermal elements. Low buckling stress with increased width of unbuckled growth was sought, as well as increased growth velocity while maintaining low residual stress. Model-defined advanced concepts for web growth configurations were defined and verified in experimental web growth. Major increases were achieved in width and velocity.

Duncan, C. S.

1984-01-01

336

Web Replica Hosting Systems  

Microsoft Academic Search

Replication is a well-known technique to improve the accessibility of Web sites. It generally offers reduced client latencies and increases a site's availability. However, applying replication techniques is not trivial, and various Content Delivery Networks (CDNs) have been created to fa- cilitate replication for digital content providers. The success of these CDNs has triggered further research efforts into developing advanced

Swaminathan Sivasubramanian; M. Szymaniak; G. Pierre

2004-01-01

337

Compressed web indexes  

Microsoft Academic Search

Web search engines use indexes to eciently retrieve pages containing specified query terms, as well as pages linking to specified pages. The problem of compressed indexes that permit such fast retrieval has a long history. We consider the problem: assuming that the terms in (or links to) a page are generated from a probability distribution, how well com- pactly can

Flavio Chierichetti; Ravi Kumar; Prabhakar Raghavan

2009-01-01

338

Underwater Web Work  

ERIC Educational Resources Information Center

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.

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

2004-01-01

339

Elementary Classroom Web Sites  

ERIC Educational Resources Information Center

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…

Baker, Elizabeth A.

2007-01-01

340

Forest food web Illustration  

NSDL National Science Digital Library

The lowest level of a food web includes producers, which are plants that make their own energy from the sun. Animals that eat these producers are called primary consumers, and consumers that eat other consumers are called secondary consumers. Decomposers break down dead plants and animals to release nutrients into the soil.

Katie Hale (CSUF;Biological Sciences)

2007-07-14

341

Caught on the Web  

ERIC Educational Resources Information Center

In this article, the author presents several Web sites supporting electronic presentation skills. The sites featured here will help fine-tune one's skills in modeling effective presentations and provide suggestions for managing student presentations meeting National Educational Technology Standards (NETS). Most use PowerPoint, the current industry…

Isakson, Carol

2005-01-01

342

Intelligent web crawler  

Microsoft Academic Search

As the number of Internet users and the number of accessible Web pages grows, it is becoming increasingly difficult for users to find documents that are relevant to their particular needs. Users must either browse through a large hierarchy of concepts to find the information for which they are looking or submit a query to a publicly available search engine

P. Dahiwale; A. Mokhade; M. M. Raghuwanshi

2010-01-01

343

Silicon web process development  

NASA Technical Reports Server (NTRS)

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.

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

1980-01-01

344

Spelling and the Web  

ERIC Educational Resources Information Center

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).…

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

2008-01-01

345

Experiments in Web Storytelling  

ERIC Educational Resources Information Center

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…

Levine, Alan

2011-01-01

346

Caught on the Web  

ERIC Educational Resources Information Center

In this article, the author presents a listing of Web resources which showcases sites created by school districts to support staff use of available technologies. These include Online Technology Tutorials from the Kent School District, Tips and Tutorials from the Kenton County (Kentucky) Schools Office of Instructional Technology, and Teacher…

Isakson, Carol

2006-01-01

347

Designing personalized web applications  

Microsoft Academic Search

The goal of this paper is to argue the need to approach the personalization issues in Web applications from the very beginning in the application's development cycle. Since personalization is a critical aspect in many popular domains such as e-commerce, it important enough that it should be dealt with through a design view, rather than only an implementation view (which

Gustavo Rossi; Daniel Schwabe; Robson Guimarães

2001-01-01

348

Friction of plastic webs  

Microsoft Academic Search

This paper is about the measurement of the friction of plastic and similar flexible webs in contact with cylindrical surfaces. There are numerous ways for measuring friction coefficients of materials in relative contact, but to be meaningful, the testing technique should simulate the tribosystem of interest. The subject of this paper is the capstan friction test, which simulates the tribosystem

K. G Budinski

2001-01-01

349

Restructuring Multilingual Web Sites  

Microsoft Academic Search

Current practice of Web site development does not ad- dress explicitly the problems related to multilingual sites. Thesame information, as well as thesame navigation paths, page formatting and organization, are expected to be pro- vided by the site independently from the chosen language. This is typically ensured by adopting personal conventions on the way pages are named and on their

Paolo Tonella; Filippo Ricca; Emanuele Pianta; Christian Girardi

2002-01-01

350

The Sentient Web  

Microsoft Academic Search

In a startling revelation, a team of university scientists has reported that a network of computers has become conscious and sentient, and is beginning to assume control of online information system. In spite of the ominous tone typically chosen for dramatic effect, a sentient Web would be more helpful and much easier for people to use. An agent is an

Michael N. Huhns

2003-01-01

351

Web Accessibility Evaluation  

NASA Astrophysics Data System (ADS)

Web accessibility evaluation is a broad field that combines different disciplines and skills. It encompasses technical aspects such as the assessment of conformance to standards and guidelines, as well as non-technical aspects such as the involvement of end-users during the evaluation process. Since Web accessibility is a qualitative and experiential measure rather than a quantitative and concrete property, the evaluation approaches need to include different techniques and maintain flexibility and adaptability toward different situations. At the same time, evaluation approaches need to be robust and reliable so that they can be effective. This chapter explores some of the techniques and strategies to evaluate the accessibility of Web content for people with disabilities. It highlights some of the common approaches to carry out and manage evaluation processes rather than list out individual steps for evaluating Web content. This chapter also provides an outlook to some of the future directions in which the field seems to be heading, and outlines some opportunities for research and development.

Abou-Zahra, Shadi

352

Modularity and Web Ontologies  

Microsoft Academic Search

Modularity in ontologies is key both for large scale ontology development and for distributed ontology reuse on the Web. However, the problems of formally characterizing a modular representation, on the one hand, and of automatically iden- tifying modules within an OWL ontology, on the other, has not been satisfactorily addressed, although their relevance has been widely accepted by the Ontology

Bernardo Cuenca Grau; Bijan Parsia; Evren Sirin; Aditya Kalyanpur

2006-01-01

353

Caught on the Web  

ERIC Educational Resources Information Center

In this article, the author presents Web sites about teen use of online social networks and age-appropriate resources. These resources can be used for teaching students ways in which to use these networks safely and ethically. Among other things, "Social Network Service" entry in Wikipedia, offers a description and a "List of Social Networking…

Isakson, Carol

2006-01-01

354

Semantic Web Development.  

National Technical Information Service (NTIS)

The work funded by DARPA and done by MIT and W3C under DAML Agent Markup Language (DAML) project between 2002 and 2005 provided key steps in the research in the Semantic Web technology, and also played an essential role in delivering the technology to ind...

R. Swick T. Berners-Lee

2006-01-01

355

Web Development Simplified  

ERIC Educational Resources Information Center

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…

Becker, Bernd W.

2010-01-01

356

Abstractions of Web Services  

Microsoft Academic Search

A particular challenge which is critically important to the development and reusability of Web Service (WS) systems is to have a precise understanding of the functionality of the service under consideration. Currently, this information is not captured by the associated WS technologies. For instance, the WSDL description at best captures type information associated with each operation provided by the WS

Ali Nasrat Haidar

2009-01-01

357

SeaWeb  

NSDL National Science Digital Library

A multimedia public education project designed to raise awareness of the world ocean and the life within it. Find articles on the latest ocean issues, links to resources and audio clips of the radio show Ocean Report. Also features information on SeaWeb programs, such as aquaculture initiatives for both fish and their eggs (caviar), and publications.

358

Web Search page  

NSDL National Science Digital Library

The Web Search page is another collection of all the major search engines and directories, but with graphic representations which may make it more fun to have in your bookmarks. A text version is also provided which includes even more search engines, resulting in a new feeling of being overwhelmed.

359

Warbling on the Web.  

ERIC Educational Resources Information Center

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)

Donahue, Steven

2001-01-01

360

WebWatch.  

ERIC Educational Resources Information Center

Reviews ten Web sites that are designed to answer basic legal questions for the layperson. They provide resources on a broad range of legal topics, such as divorce, real estate, and criminal justice, as well as legal forms and information on finding a lawyer. (LRW)

Newcombe, Pat

2002-01-01

361

Classroom Activity: Food Webs  

NSDL National Science Digital Library

This lesson plan is designed to help students understand the interrelatedness of food webs and to see how populations of organisms affect each other. Students assume the roles of the various organisms in the ecosystem; the ones that are dependent upon each other are symbolically connected by lengths of yarn. A materials list, instructions, assessment ideas, and educational standards are provided.

362

PANDORA, Australiaa's Web Archive  

Microsoft Academic Search

In this article, the history of the development of Australia's Web archive, PANDORA, is presented. Criteria for selection, harvesting techniques, the static or dynamic nature of the material, and the technical aspects of archiving are discussed. Policy matters include copyright, permission to archive, legal deposit arrangements, requests to remove harvested material. Practices for administrative, preservation, descriptive, and rights metadata are

Margaret E. Phillips; Paul Koerbin

2007-01-01

363

Web Based Virtual Instruments  

NSDL National Science Digital Library

This site provides a set of web-based tools for precise analysis of audio, acoustical and electrical signals. The modules include a sound level meter, a digital oscilloscope, a digital spectrum analyzer, and a versatile set of digital function generators.

Digital Recordings - Advanced R & D

2008-07-28

364

Spider Webs and Silks.  

ERIC Educational Resources Information Center

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)

Vollrath, Fritz

1992-01-01

365

Web Of Life  

NSDL National Science Digital Library

This resource is a simulation game where students represent plants and animals living in a forest habitat. Sitting in a circle, they connect themselves using string to represent the ways they depend on each other. As they make connections, the string forms a web of life. They will also learn what occurs when an invasive species enters their environment.

Resources, Wisconsin D.

2012-05-12

366

Genetic toxicology: web resources  

Microsoft Academic Search

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®,

Robert R. Young

2002-01-01

367

Stat My Web  

NSDL National Science Digital Library

The helpful Stat My Web site gives visitors the ability to learn about the statistics and metrics associated with any specific site. Visitors can learn when a site was created, where it is hosted, and how much it is worth. The site has two dozen features, including IP Location, Server Status, and Reciprocal Link Checker. This particular version is compatible with all operating systems.

2012-05-18

368

Embedding speech in web interfaces  

Microsoft Academic Search

In this paper, we will describe work in progress at the MITRE Cor- poration on embedding speech-enabled interfaces in Web browsers. This research is part of our work to establish the infrastructure to create Web-hosted versions of prototype multimodal interfaces, both intelligent and otherwise. Like many others, we believe that the Web is the best potential delivery and distribution vehicle

Samuel Bayer

1996-01-01

369

Web searching for daily living  

Microsoft Academic Search

The new concept proposed in this paper is a query free web search that automatically retrieves a web page including information re- lated to the daily activity that we are currently engaged in for auto- matically displaying the page on Internet-connected domestic ap- pliances around us such as televisions. When we are washing a coffee maker, for example, a web

Takuya Maekawa; Yutaka Yanagisawa; Yasushi Sakurai; Yasue Kishino; Koji Kamei; Takeshi Okadome

2009-01-01

370

Designing a WebQuest  

ERIC Educational Resources Information Center

A WebQuest is an inquiry-based lesson plan that uses the Internet. This article explains what a WebQuest is, shows how to create one, and provides an example. When engaged in a WebQuest, students use technology to experience cooperative learning and discovery learning while honing their research, writing, and presentation skills. It has been found…

Salsovic, Annette R.

2009-01-01

371

The Semantic Web in Education  

ERIC Educational Resources Information Center

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.…

Ohler, Jason

2008-01-01

372

Sensor system for web inspection  

DOEpatents

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.

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

373

Bypass Testing of Web Applications  

Microsoft Academic Search

Web software applications are increasingly being de- ployed in sensitive situations. Web applications are used to transmit, accept and store data that is personal, com- pany confidential and sensitive. Input validation testing (IVT) checks user inputs to ensure that they conform to the program's requirements, which is particularly im- portant for software that relies on user inputs, includ- ing Web

Jeff Offutt; Ye. Wu; Xiaochen Du; Hong Huang

2004-01-01

374

The Evolution of Web Searching.  

ERIC Educational Resources Information Center

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…

Green, David

2000-01-01

375

Statistical testing of Web applications  

Microsoft Academic Search

The World Wide Web, initially intended as a way to publish static hypertexts on the Internet, is moving toward complex applications. Static Web sites are being gradually replaced by dynamic sites, where information is stored in databases and non-trivial computation is performed.In such a scenario, ensuring the quality of a Web application from the user's perspective is crucial. Techniques are

Paolo Tonella; Filippo Ricca

2004-01-01

376

Asset Assessment in Web Applications  

Microsoft Academic Search

Security, a quality attribute in web applications, improves the level of quality in the processes needed to manage information, and therefore achieving business objectives. Web Engineering must address new challenges facing web application development in order to offer new techniques that guarantee high quality applications. This work is part of an over all project that focuses on Risk Assessment in

Brunil Dalila Romero Marino; Hisham M. Haddad

2010-01-01

377

Planning for Semantic Web Services  

Microsoft Academic Search

Using Semantic Web ontologies to describe Web Services has proven to be useful for various different tasks including service discovery a nd composi- tion. AI planning techniques have been employed to automate the composition of Web Services described this way. Planners use the description of the pre- conditions and effects of a service to do various sorts of reasoning abo

Evren Sirin; Bijan Parsia

2004-01-01

378

The Art of Web Design  

ERIC Educational Resources Information Center

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…

Longe, Heather

2008-01-01

379

World Wide Web conference 1994  

NSDL National Science Digital Library

The '95 World Wide Web conference, in Chicago, was a sold out event. This Web page was established in anticipation of a need to provide articles and updates across the Web for people who were interested - or who couldn't get in.

1994-01-01

380

Graph structure in the Web  

Microsoft Academic Search

The study of the web as a graph is not only fascinating in its own right, but also yields valuable insight into web algorithms for crawling, searching and community discovery, and the sociological phenomena which characterize its evolution. We report on experiments on local and global properties of the web graph using two Altavista crawls each with over 200 million

Andrei Z. Broder; Ravi Kumar; Farzin Maghoul; Prabhakar Raghavan; Sridhar Rajagopalan; Raymie Stata; Andrew Tomkins; Janet L. Wiener

2000-01-01

381

World Wide Web Cache Consistency  

Microsoft Academic Search

The bandwidth demands of the World Wide Web continue to grow at a hyper-exponential rate. Given this rocketing growth, caching of web objects as a means to reduce network bandwidth consumption is likely to be a necessity in the very near future. Unfortunately, many Web caches do not satisfactorily maintain cache consistency. This paper presents a survey of contemporary cache

James Gwertzman; Margo I. Seltzer

1996-01-01

382

Quality driven web services composition  

Microsoft Academic Search

The process-driven composition of Web services is emerging as a promising approach to integrate business applications within and across organizational boundaries. In this approach, individual Web services are federated into composite Web services whose business logic is expressed as a process model. The tasks of this process model are essentially invocations to functionalities offered by the underlying component services. Usually,

Liangzhao Zeng; Boualem Benatallah; Marlon Dumas; Jayant Kalagnanam; Quan Z. Sheng

2003-01-01

383

Hyperlink Analysis for the Web  

Microsoft Academic Search

Hyperlink analysis algorithms significantly improve the relevance of the search results on the Web, so much so that all major Web search engines claim to use some type of hyperlink analysis. However, the search engines do not disclose details about the type of hyperlink analysis they perform, mostly to avoid manipulation of search results by Web-positioning companies. The article discusses

Monika Rauch Henzinger

2001-01-01

384

Graphics programming for the web  

Microsoft Academic Search

With HTML5 and ever-improving browser performance, the web has emerged as an ideal platform for showcasing graphics applications. Several graphics applications that were once too slow to be written in anything but native code may now be fast enough to run as web apps. This course for developers who want to develop graphics applications for the web introduces the concepts

Pushkar Joshi; Mikaël Bourges-Sévenier; Kenneth Russell; Zhenyao Mo

2012-01-01

385

TREC 2013 Web Track Overview.  

National Technical Information Service (NTIS)

The goal of the TREC Web track is to explore and evaluate retrieval approaches over large-scale subsets of the Web -- currently on the order of one billion pages. For TREC 2013, the fifth year of the Web track, we implemented the following significant upd...

C. L. Clarke E. M. Voorhees F. Diaz K. Collins-Thompson P. Bennett

2014-01-01

386

Cytoscape Web: an interactive web-based network browser  

PubMed Central

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.

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

2010-01-01

387

The calculation of web impact factors  

Microsoft Academic Search

This case study reports the investigations into the feasibility and reliability of calculating impact factors for web sites, called Web Impact Factors (Web-IF). The study analyses a selection of seven small and medium scale national and four large web domains as well as six institutional web sites over a series of snapshots taken of the web during a month. The

Peter Ingwersen

1998-01-01

388

Web Usage, Advertising, and Shopping: Relationship Patterns.  

ERIC Educational Resources Information Center

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)

Korgaonkar, Pradeep; Wolin, Lori D.

2002-01-01

389

OGC Web Service Interoperability Based on SVM  

Microsoft Academic Search

OGC web service provides an important method for GIS data sharing and interoperability. But it is difficult to find suitable web service, how to get appropriate service has become a serious problem. We discuss the method of finding web services, filtering unsuitable web services and invoking web services. To find WFS and WMS web services, several search engines' source code

Chen Hongying

2010-01-01

390

Towards a Formal Foundation of Web Security  

Microsoft Academic Search

We propose a formal model of web security based on an abstraction of the web platform and use this model to analyze the security of several sample web mechanisms and applications. We identify three distinct threat models that can be used to analyze web applications, ranging from a web attacker who controls malicious web sites and clients, to stronger attackers

Devdatta Akhawe; Adam Barth; Peifung E. Lam; John C. Mitchell; Dawn Song

2010-01-01

391

Web-Based Mapping Puts the World at Your Fingertips  

NASA Technical Reports Server (NTRS)

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.

2008-01-01

392

Web Page Design for Designers  

NSDL National Science Digital Library

Web Page Design for Designers is an excellent resource written and designed by Joe Gillespie and sponsored by Pixel Productions. It offers web site design information and advice to those who are already familiar with HTML. This site's main focus is on how to obtain an optimal design that is sensitive to both multiple platforms and screen sizes. Issues discussed include web page size, fonts, graphics and color palettes, and navigation. Users can download tools such as a web page ruler, color palettes, and more. Web Page Design for Designers also contains a well-rounded listing of other resources.

1996-01-01

393

Toward an immersion platform for the world wide web using autostereoscopic displays and tracking devices  

Microsoft Academic Search

A few years ago, the introduction of the WebGL API has allowed displaying 3D content in web browsers very efficiently by using the power of 3D accelerators. Nowadays, 3D web applications, from games to medical imaging, tend to compete with their desktop counterparts. Among the main factors that can improve the feeling of presence in terms of impressiveness, immersion and

Olivier Nocent; Sylvia Piotin; Aassif Benassarou; Maxime Jaisson; Laurent Lucas

2012-01-01

394

WEBtop (Operating Systems on Web)  

NASA Astrophysics Data System (ADS)

WebOS (Web based operating system) is a new form of Operating Systems. You can use your desktop as a virtual desktop on the web, accessible via a browser, with multiple integrated built-in applications that allow the user to easily manage and organize her data from any location. Desktop on web can be named as WEBtop. This paper starts with a introduction of WebOS and its benefits. For this paper, We have reviewed some most interesting WebOS available nowadays and tried to provide a detailed description of their features. We have identified some parameters as comparison criteria among them. A technical review is given with research design and future goals to design better web based operating systems is a part of this study. Findings of the study conclude this paper.

Sharma, M. K.; Kumar, Rajeev

2011-12-01

395

Promoting Teachers' Positive Attitude towards Web Use: A Study in Web Site Development  

ERIC Educational Resources Information Center

The purpose of the study was to examine effects of a compact training for developing web sites on teachers' web attitude, as composed of: web self efficacy, perceived web enjoyment, perceived web usefulness and behavioral intention to use the web. To measure the related constructs, the Web Attitude Scale was adapted into Turkish and tested with a…

Akpinar, Yavuz; Bayramoglu, Yusuf

2008-01-01

396

WebAdaptor: Designing Adaptive Web Sites Using Data Mining Techniques  

Microsoft Academic Search

Creating an adaptive web site, which is a web site that automatically changes its contents and organization ac- cording to usage, is a challenge for web site designers. We introduce a novel algorithm for creating an adaptive web site based on combining web usage mining and adaptive web site generation. We outline the design of a system called WebAdaptor that

Howard J. Hamilton; Xuewei Wang; Y. Y. Yao

2001-01-01

397

Web Map Services (WMS) Global Mosaic  

NASA Technical Reports Server (NTRS)

The WMS Global Mosaic provides access to imagery of the global landmass using an open standard for web mapping. The seamless image is a mosaic of Landsat 7 scenes; geographically-accurate with 30 and 15 meter resolutions. By using the OpenGIS Web Map Service (WMS) interface, any organization can use the global mosaic as a layer in their geospatial applications. Based on a trade study, an implementation approach was chosen that extends a previously developed WMS hosting a Landsat 5 CONUS mosaic developed by JPL. The WMS Global Mosaic supports the NASA Geospatial Interoperability Office goal of providing an integrated digital representation of the Earth, widely accessible for humanity's critical decisions.

Percivall, George; Plesea, Lucian

2003-01-01

398

University of Utah: WebVision  

NSDL National Science Digital Library

From the John Moran Eye Center at the University of Utah, WebVision (first reported on in the August 9, 2002, NSDL Scout Report for Life Sciences) is an extensive hypertext that attempts "to summarize the recent advances in knowledge and understanding of the mammalian retina." Three newer sections have been integrated into the online textbook in recent months. A subsection on S-Potentials and Horizontal Cells was added to the Anatomy and Physiology of the Retina section, and sections on Regeneration in the Visual System of Adult Mammals, and Fetal Tissue Allografts in the Central Visual System of Rodents were added as well. The text sections include helpful diagrams and images, as well as extensive reference listings. Other major sections of the WebVision hypertext include Retinal Circuits, Color Vision, Psychophysics of Vision, Primary Visual Cortex, and more.

399

AIRSAR Web-Based Data Processing  

NASA Technical Reports Server (NTRS)

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.

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

2007-01-01

400

A Web-based repository manager for brain mapping data.  

PubMed Central

The Web provides a rapid prototyping environment for building platform-independent graphical user interfaces. A Web-based console can be implemented as a suite of CGI scripts that generate HTML code, manipulate files, execute system commands, and invoke external tools. Often these tools share data by reading and writing flat files, which must be explicitly maintained by the CGI programmer. In a repository system, meta-data about each file object are maintained in a database, and access to all data is regulated by a layer of control services. This paper describes the design and implementation of a Web-based Repository Manager (WRM), which provides an application programmer's interface for controlling applications, generating HTML documents, handling Web forms, and managing multi-media data. The WRM is being used to develop a console for the Brain Mapping Framework, a system for visualizing cortical stimulation data obtained during neurosurgery. Images Figure 2

Jakobovits, R. M.; Modayur, B.; Brinkley, J. F.

1996-01-01

401

Silicon dendritic web material  

NASA Technical Reports Server (NTRS)

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.

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

1982-01-01

402

Becoming WebWise  

NSDL National Science Digital Library

Sponsored by the British Broadcasting Corporation (BBC), Becoming Webwise is an online course for the novice Internet user that wants to learn at his/her own pace. The course consists of eight sections that take users through the Internet basics in a simple and easy-to-follow format. Becoming WebWise covers topics such as getting connected, emailing, searching, bookmarking, creating address books, and the basic fundamentals of building a Web page. Users will also learn about technological developments like Digital TV, WAP phones, legal online rights, the history of the Net, as well as other ways of accessing the Internet. The course is estimated to take up to ten hours to complete, and users are able to return to any of the sections as often as they choose.

2001-01-01

403

Forest Food Webs  

NSDL National Science Digital Library

This lesson plan is part of the DiscoverySchool.com lesson plan library for grades 6-8. It focuses on the seasonal changes that affect life in a temperate forest ecosystem and how organisms in a temperate forest are dependent on one another for proper nutrition. Students describe the three major types of organisms that live in an ecosystem, three types of consumers, food webs, and food chains. They then create a food web diagram for display in their classrooms. Included are objectives, materials, procedures, discussion questions, evaluation ideas, suggested readings, and vocabulary. There are videos available to order which complement this lesson, and links to teaching tools for making custom quizzes, worksheets, puzzles and lesson plans.

2007-03-12

404

Web de Anza  

NSDL National Science Digital Library

Web de Anza: an Interactive Study Environment on Spanish Exploration and Colonization of "Alta California" 1774-1776 offers researchers, educators, and students information resources related to the study of two eighteenth-century Spanish overland expeditions from Sonora (Arizona) in New Spain to northern California. This site features primary source materials, such as the original diaries and letters of the expeditionary leader, Juan Bautista de Anza, commandant of the Presidio of Tubac in Sonora. The site also provides a wealth of additional information including bibliographies, biographies, commentaries, maps, timelines, pictures, and sounds and video clips associated with the expeditions. Although its developers claim that the site is still under construction, it contains enough information to keep visitors occupied for hours, if not days. Web de Anza is hosted by the Center for Advanced Technology in Education at the University of Oregon.

405

Forest Food Webs  

NSDL National Science Digital Library

This lesson plan is part of the DiscoverySchool.com lesson plan library for grades 6-8. It focuses on the seasonal changes that affect life in a temperate forest ecosystem and how organisms in a temperate forest are dependent on one another for proper nutrition. Students describe the three major types of organisms that live in an ecosystem, three types of consumers, food webs, and food chains. They then create a food web diagram for display in their classrooms. Included are objectives, materials, procedures, discussion questions, evaluation ideas, suggested readings, and vocabulary. There are videos available to order which complement this lesson, and links to teaching tools for making custom quizzes, worksheets, puzzles and lesson plans.

Cahill, Mary

2007-12-12

406

Quantum computational webs  

SciTech Connect

We discuss 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) one-dimensional states (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, of the kind accessible in a number of physical architectures. We provide a complete classification of qubit wires, a physically well-motivated class of universal resources that can be fully understood. Finally, we sketch possible realizations in superlattices and explore the power of coupling mechanisms based on Ising or exchange interactions.

Gross, D. [Institute for Theoretical Physics, Leibniz University Hannover, D-30167 Hannover (Germany); Eisert, J. [Institute for Physics and Astronomy, University of Potsdam, D-14476 Potsdam (Germany); Institute for Advanced Study Berlin, D-14193 Berlin (Germany)

2010-10-15

407

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.

408

Herodotus on the Web  

NSDL National Science Digital Library

This much-better-than-average specialized Web directory on Herodotus is maintained by Tim Spalding, an amateur Greek historian. The Herodotus site, launched late last year, features "over 200 links to resources about the seminal historian and his age. These include texts and translations, books about Herodotus, essays and articles, and a new links section. Spalding also provides a free email news service for his site.

1995-01-01

409

WWW - Wonderful Web Weather  

NSDL National Science Digital Library

This is a web quest for students to research weather forecasting using the Internet. Students work in groups to study how accurate weather forecasts are by tracking the weather for 3 days in several locations. Using graphs students then compare how each location scored in accuracy and present their findings to the class. This site contains links for students to use for more background information, a process for the students to follow, and evaluation rubrics for the student-produced graphs and presentation.

Parrish, Jason

410

Web Ontology Language: OWL  

Microsoft Academic Search

\\u000a The expressivity of RDF and RDF Schema that was described in [12] is deliberately very limited: RDF is (roughly) limited to binary ground predicates, and RDF Schema is (again roughly) limited\\u000a to a subclass hierarchy and a property hierarchy, with domain and range definitions of these properties.\\u000a \\u000a \\u000a However, the Web Ontology Working Group of W3C [10] identified a number of

Grigoris Antoniou; Frank Van Harmelen

2004-01-01

411

Nature Web Focus: SARS  

NSDL National Science Digital Library

The journal Nature offers this free Web focus on Severe Acute Respiratory Syndrome (SARS), in which Nature's reporters pose key questions about the outbreak, and assess our preparedness to deal with future viral threats. Reader will find dozens of articles, including editorials, Science Updates, and Brief Communications from the journal. The articles trace the chronology of the SARS epidemic, and the section titled What Have We Learned? offers an excellent overview of what we know and what remains to be seen.

2007-12-12

412

Polar Meteorology: Web Resources  

NSDL National Science Digital Library

By Peter Guest, Research Associate Profession at the Naval Postgraduate School in Monterey, this wonderfully organized set of web resources in polar meteorology can be helpful to educators looking to supplement their lessons. The links are divided into sections, including Current Weather, Current Sea Ice, Climate, Climate Change, Education, Maps, Research Projects, Institutions, Organizations, and People. Visitors will also find a list of general polar links at the end.

Guest, Peter

2011-06-02

413

K9 Web Protection  

NSDL National Science Digital Library

Parents and those concerned about young people surfing the Internet may want to take a close look at this particular application. With this application, users have the ability to block adult sites and other potentially offensive content from the eyes of children and other impressionable persons. K9 Web Protection can also be configured to stop spyware or gambling programs. This particular version is compatible with all computers running Windows 2000 and XP.

2006-01-01

414

Towards temporal web search  

Microsoft Academic Search

This paper shifts the focus of Web search towards finding and exploiting small text nuggets, rather than full-length documents, assumming that the type of targeted information (e.g., date) is specified in the queries. Each nugget is a document sentence fragment that encodes open-domain factual information associated to some entity. The entities are dates (e.g., 1971) when the events captured by

Marius Pasca

2008-01-01

415

Simple Web Applications  

Microsoft Academic Search

\\u000a One of the major benefits of using Jython is the ability to make use of Java platform capabilities programming in the Python\\u000a programming language instead of Java. In the Java world today, the most widely used web development technique is the Java\\u000a servlet. Now in JavaEE, there are techniques and frameworks used so that we can essentially code HTML or

Josh Juneau; Jim Baker; Victor Ng; Leo Soto; Frank Wierzbicki

416

Web Facts and Fantasy  

Microsoft Academic Search

There is a great deal of research about improving Web server performance and building better, faster servers, but little research in characterizing servers and the load imposed upon them. While some tremendously popular and busy sites, such as netscape.com, playboy.com, and altavista.com, receive several million hits per day, most servers are never subjected to loads of this magnitude. This paper

Stephen Manley; Margo I. Seltzer

1997-01-01

417

From webs to polylogarithms  

NASA Astrophysics Data System (ADS)

We compute a class of diagrams contributing to the multi-leg soft anomalous dimension through three loops, by renormalizing a product of semi-infinite non-lightlike Wilson lines in dimensional regularization. Using non-Abelian exponentiation we directly compute contributions to the exponent in terms of webs. We develop a general strategy to compute webs with multiple gluon exchanges between Wilson lines in configuration space, and explore their analytic structure in terms of ? ij , the exponential of the Minkowski cusp angle formed between the lines i and j. We show that beyond the obvious inversion symmetry ? ij ? 1 /? ij , at the level of the symbol the result also admits a crossing symmetry ? ij ? - ? ij , relating spacelike and timelike kinematics, and hence argue that in this class of webs the symbol alphabet is restricted to ? ij and . We carry out the calculation up to three gluons connecting four Wilson lines, finding that the contributions to the soft anomalous dimension are remarkably simple: they involve pure functions of uniform weight, which are written as a sum of products of polylogarithms, each depending on a single cusp angle. We conjecture that this type of factorization extends to all multiple-gluon-exchange contributions to the anomalous dimension.

Gardi, Einan

2014-04-01

418

Images and Copyright  

ERIC Educational Resources Information Center

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…

Webber, Nancy

2004-01-01

419

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)

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

2009-03-01

420

Bridging the Gap Between Time- and Structure-Based Navigation in Web Lectures  

ERIC Educational Resources Information Center

Typical web lectures consist of two different kinds of media linked together: an audio- or video-recording and the corresponding slides or desktop recording. Both media are synchronized so that the slide or image shown corresponds to the position currently played in the time-based media stream. Web lectures are thus composite media consisting of a…

Mertens, Robert; Brusilovsky, Peter; Vornberger, Oliver; Ishchenko, Sergey

2009-01-01

421

A Checklist for Designing and Evaluating Physical Education Program Web Sites  

ERIC Educational Resources Information Center

Creating a physical education department web site is an excellent way to promote a positive image of the program, because students and parents are able to find important information and improve the lines of communication. A well-designed physical education web site can even encourage students to increase their physical activity levels. Improved…

Tucker, Michael; Hill, Grant

2009-01-01

422

Visualization over the World Wide Web and its application to environmental data  

Microsoft Academic Search

This paper explores the way in which data visualization systems, in particular modular visualization environments, can be used over the World Wide Web. The. conventional approach is for the publisher of the data to be responsible also for creating the visualization, and posting it as an image on the Web. This leaves the viewer in a passive role, with no

Jason Wood; Ken Brodlie; Helen Wright

1996-01-01

423

A Methodology for Extracting Head Contents from Meaningful Tables in Web Pages  

Microsoft Academic Search

Tables are an important feature of presenting information & are widely used on the web. They show relational data in a simple & precise manner. A typical web page consists of many blocks or areas e.g. main content areas, advertisements, images etc. Tables contain meaningful information. Almost all data is arranged in tabular format. Tables describe relational information in a

Madhuri M. Chavan; S. K. Shirgave

2011-01-01

424

A New Era of Search Engines: Not Just Web Pages Anymore.  

ERIC Educational Resources Information Center

Discusses various types of information that can be retrieved from the Web via search engines. Highlights include Web pages; time frames, including historical coverage and currentness; text pages in formats other than HTML; directory sites; news articles; discussion groups; images; and audio and video. (LRW)

Hock, Ran

2002-01-01

425

Document image analysis for active reading  

Microsoft Academic Search

A huge number of documents that were only available in libraries are now on the web. The web access is a solution to protect the cultural heritage and to facilitate knowledge transmission. Most of these documents are displayed as images of the original paper pages and are indexed by hand. In this paper, we present how and why Document Image

Claudie Faure; Nicole Vincent

2007-01-01

426

WebCrawler: Finding What People Want  

Microsoft Academic Search

WebCrawler, the first comprehensive full-text search engine for the World-Wide Web, has played a fundamental role in making the Web easier to use for millions of people. Its invention and subsequent evolution, spanning a three-year period, helped fuel the Web??s growth by creating a new way of navigating hypertext. Before search engines like WebCrawler, users found Web documents by following

Brian Pinkerton

2000-01-01

427

Encapsulating Multi-stepped Web Forms as Web Services  

Microsoft Academic Search

\\u000a HTML forms are the predominant interface between users and web applications. Many of these applications display a sequence\\u000a of multiple forms on separate pages, for instance to book a flight or order a DVD. We introduce a method to wrap these multi-stepped\\u000a forms and offer their individual functionality as a single consolidated Web Service. This Web Service in turn maps

Tobias Vogel; Frank Kaufer; Felix Naumann

2009-01-01

428

Turning pure Web Page Storages into Living Web Archives  

Microsoft Academic Search

Web content plays an increasingly important role in the knowledge-based society, and the preservation and long-term accessibility of Web history has high value (e.g., for scholarly studies, market analyses, intellectual property disputes, etc.). There is strongly growing interest in its preservation by libraries and archival organizations as well as emerging industrial services. Web content characteristics (high dynamics, volatility, contributor and

Thomas Risse; Julien Masanès; András A. Benczúr; Marc Spaniol

429

An Efficient Web Page Ranking for Semantic Web  

NASA Astrophysics Data System (ADS)

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.

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

2014-05-01

430

Enhancing low-dose CT images in the EHR based on HTML5  

Microsoft Academic Search

The Web Access to Digital Imaging and Communication in Medicine (DICOM) Persistent Objects (WADO) standard specifies a Web-based service for accessing and presenting DICOM persistent objects, such as images and medical imaging reports. This paper analyzes the image transferring mechanism of the WADO service and proposes to extend its abilities by accessing 16-bit images and incorporating a denoising method clinically

Liwei Hao; Dongyan Jia; Guo Dan; Qianjing Feng; Siping Chen

2012-01-01

431

LP Past Summer Student Images  

Cancer.gov

D  CCR Home   About CCR   CCR Intranet        Laboratory of Pathology LP Home Clinical Services Basic Sciences Training LP Staff Accessibility of Web Site LP Past Summer Student Images Coming Soon Back to Summer Student Home About CCR | Clinical

432

Tree of Life Web Project: Teacher Resource: Fruit Fly Genetics Project  

NSDL National Science Digital Library

A high school level genetics project housed on the Tree of Life web project site using Drosophila to predict genetic crosses. The site includes instructions, worksheets, and extensive explanations as well as many images and example results.

0002-11-30

433

Using winery web sites to launch relationships with Millennials  

Microsoft Academic Search

Purpose – The purpose of this study is to examine the attitudes of Millennial wine consumers and determine if positive evaluations of the winery's web site lead to increased trust in the winery and perceptions of product quality, higher levels of brand equity, and increased purchase intentions. The tasting room experience will be evaluated for consistency with the image created

Linda I. Nowak; Sandra Newton

2008-01-01

434

Creating Polyphony with Exploratory Web Documentation in Singapore  

ERIC Educational Resources Information Center

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…

Lim, Sirene; Hoo, Lum Chee

2012-01-01

435

The Impact on Education of the World Wide Web.  

ERIC Educational Resources Information Center

This paper describes a project which created a set of World Wide Web (WWW) pages documenting the state of the art in educational multimedia design; a prototype WWW-based multimedia teaching tool--a podiatry test using HTML forms, 24-bit color images and MPEG video--was also designed, developed, and evaluated. The project was conducted between…

Hobbs, D. J.; Taylor, R. J.

436

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

ERIC Educational Resources Information Center

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)

Communication: Journalism Education Today, 2001

2001-01-01

437

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

ERIC Educational Resources Information Center

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)

Petrik, Paula

2000-01-01

438

The Official String Theory Web Site  

NSDL National Science Digital Library

The Official String Theory Web Site, created by a group of highly educated physicists, is a great resource for everyone interested in physics and the string theory. It begins with educational and stimulating discussion about theoretical physics and the basics of string theory. Users can find out about the experimental tests and the math used by string theorists. Visitors can take a trip through the Big Bang, view amazing images of black holes, and learn about the history of string theory. Students and educators can listen to interviews of the many scientists who contributed to this informative site.

439

ICSD Web: the Inorganic Crystal Structure Database  

NSDL National Science Digital Library

This site contains a free demonstration version of the Inorganic Crystal Structure Database. This database contains a 3325 structure subset of the 76,480 inorganic structures as of 2004. The demo version can be queried and accessed by a web-interface which allows multiple methods of searching, and the resulting crystal structures can then be viewed online (with the CHIME plug-in) or downloaded for viewing with other visualization software. Also included on the site are updates of bug fixes, conditions of use and prices, tips for displaying the structures, a gallery of images, a flash movie, and instructions for installing a ICSD server.

Alan, Hewat

440

Abusing locality in shared web hosting  

Microsoft Academic Search

The increasing popularity of the World Wide Web has made more and more individuals and companies to identify the need of acquiring a Web presence. The most common way of acquiring such a presence is through Web hosting companies and the most popular hosting solution is shared Web hosting. In this paper we investigate the workings of shared Web hosting

Nick Nikiforakis; Wouter Joosen; Martin Johns

2011-01-01

441

A framework of deep Web crawler  

Microsoft Academic Search

As an ever-increasing amount of information on the Web today is available through search interfaces, users have to key in a set of keywords in order to access the pages from certain Web sites, which are often referred to as the hidden Web or the deep Web. Since there is no static links to the hidden Web pages, search engines

Xiang Peisu; Tian Ke; Huang Qinzhen

2008-01-01

442

Enhancing Mobile Web Access Using Intelligent Recommendations  

Microsoft Academic Search

Intelligent Web recommendations derived from frequent user Web-access patterns can help typical mobile users efficiently navigate standard Web sites. To facilitate mobile Web access, mobile clients' display resolution must gradually increase. Additionally, servers need a simple and elegant solution for displaying content effectively on mobile devices. We propose an implicit server-side approach using intelligent Web recommendations that can significantly enhance

Baoyao Zhou; Siu Cheung Hui; Kuiyu Chang

2006-01-01

443

Web Searching: Innovations, Challenges, and Future Directions.  

ERIC Educational Resources Information Center

Presents an outline for a planned technical session discussing innovations in the Web, the current state of Web searching, challenges, and future directions. Highlights include search engines; an empirical comparison of Web site overview techniques; Federal statistics web sites; and an evaluation of Web search engines from the end-user's…

Su, Louise T.

2000-01-01

444

USING THE WEB EFFICIENTLY: MOBILE CRAWLERS  

Microsoft Academic Search

Search engines have become important tools for Web navigation. In order to provide powerful search facilities, search engines maintain comprehensive indices of documents available on the Web. The creation and maintenance of Web indices is done by Web crawlers, which recursively traverse and download Web pages on behalf of search engines. Analysis of the collected information is performed after the

Jan Fiedler; Joachim Hammer

1999-01-01

445

Gauging the Success of Your Web Site  

ERIC Educational Resources Information Center

Web analytics is a way to measure and optimize Web site performance, says Jason Burby, director of Web analytics for ZAAZ Inc., a Web design and development firm in Seattle with a countrywide client base. He compares it to using Evite, which is a useful, free web service that makes it easy to send out party and other invitations and,…

Goldsborough, Reid

2005-01-01

446

WISE - Building Simple Intelligence into Web Services  

Microsoft Academic Search

Web Services are self contained and self described modular applications that can be published, discovered and employed on the Web. Many standard protocols supporting web services have been adopted and more are being proposed. In this paper, we study the issues on providing intelligent web services. We propose the enhancement of web service functionalities by deploying software agents on both

Soe-tsyr Yuan; Kwei-jay Lin

2003-01-01

447

Web composition with WCAG in mind  

Microsoft Academic Search

Accessibility should be a part of the Web design process instead of being a post-design repair process. Thus, it should be more integrated within the internal authoring tools' mechanism of generating new accessible Web contents. Web pages are usually composed of small pieces of HTML code which, dynamically nested and combined, generate full Web pages. This Web composition, specially when

Vicente Luque Centeno; Carlos Delgado Kloos; Martin Gaedke; Martin Nussbaumer

2005-01-01

448

Persistence of Web References in Scientific Research  

Microsoft Academic Search

The web has greatly improved the accessibility of scientific information, however the role of the web in formal scientific publishing has been debated. Some argue that the lack of persistence of web resources means that they should not be cited in scientific research. We analyze references to web resources in computer science publications, finding that the number of web references

Steve Lawrence; David M. Pennock; Gary William Flake; Robert Krovetz; Frans Coetzee; Eric J. Glover; Finn Årup Nielsen; Andries Kruger; C. Lee Giles

2001-01-01

449

Rigorous and Automatic Testing of Web Applications  

Microsoft Academic Search

As web applications become more and more prevalent, the quality assurance of web applications has become more and more important. Due to the complexity of the underlying technologies of web ap- plications, it is more challenging to test web applica- tions than conventional software. It is critical to de- velop eective methodologies and tools for testing web applications. In this

Xiaoping Jia; Hongming Liu

2002-01-01

450

Methodologies for Crawler Based Web Surveys.  

ERIC Educational Resources Information Center

Describes Web survey methodologies used to study the content of the Web, and discusses search engines and the concept of crawling the Web. Highlights include Web page selection methodologies; obstacles to reliable automatic indexing of Web sites; publicly indexable pages; crawling parameters; and tests for file duplication. (Contains 62…

Thelwall, Mike

2002-01-01

451

The Web Service Modeling Framework WSMF  

Microsoft Academic Search

Web Services will transform the web from a collection of information into a distributed computational device. In order to employ their full potential, appropriate description means for web services need to be developed. For this purpose, we define a fully-fledged Web Service Modeling Framework (WSMF) that provides the appropriate conceptual model for developing and describing web services and their composition

Dieter Fensel; Christoph Bussler

2002-01-01

452

Semantic Web Services in Corporate Memories  

Microsoft Academic Search

We present our experiment in integrating semantic web services in the existing corporate semantic web server architecture we use to implement corporate memories. We rely on a semantic web search engine, to provide a semantic registry and automatically discover and invoke corporate applications wrapped into semantically annotated web services. Using rules we also demonstrate how to compose the web services

Moussa Lo; Fabien L. Gandon

2007-01-01

453

Communication over IP Based on Web Services  

Microsoft Academic Search

In this paper, we study the communication over IP based on web services. We describe the service-oriented communication framework of WIP, Web Services Initiation Protocol, and focus on its web centric networking infrastructure. In our approach, WIP endpoints are exposed as resources on the Web, publishable by their UDDI service registries. They can be searched and discovered by regular web

Wu Chou; Li Li

2008-01-01

454

Web-based curriculum  

Microsoft Academic Search

OBJECTIVE: To address the need for women’s health education by designing, implementing, and evaluating a self-study, web-based women’s\\u000a health curriculum.\\u000a \\u000a \\u000a DESIGN: Cohort of students enrolled in the embulatory portion of the medicine clerkship with comparison group of students who had\\u000a not yet completed this rotation.\\u000a \\u000a \\u000a \\u000a \\u000a PARTICIPANTS\\/SETTING: Third- and fourth-year medical students on the required medicine clerkship (115 students completed the

Jennifer R. Zebrack; Julie L. Mitchell; Susan L. Davids; Deborah E. Simpson

2005-01-01

455

Web Services in AIPS++  

NASA Astrophysics Data System (ADS)

The ease of distributed computing in AIPS++ has traditionally obviated the need for standard networking components, such as those found in Java, Python, or Perl. However, Glish is able to ``wrap'' arbitrary commands, enabling us to link powerful, Java-based toolkits to Glish's event-based, client-server processing model. We have used this technique to implement a SOAP-based Cone Search web service for the Virtual Observatory. Integration of Java with AIPS++ leveraged industry-standard toolkits, and simplified the code.

Waters, B.; Benson, J.; Cornwell, T.; Ye, J.; Douthit, M.

456

FrogWeb  

NSDL National Science Digital Library

Brought to the Internet by the National Biological Information Infrastructure (NBII) (reviewed in the November 12, 1997 Scout Report for Science & Engineering), FrogWeb offers summaries of up-to-date research news related to Amphibians. Currently featured is the recent finding that parasites, not pollution, may be implicated in some amphibian declines. The Research section offers hyperlinked summaries of research on amphibian ecology, amphibian declines, and deformities. The News Releases section links users to current media coverage of frog research, and Education provides learning materials for K-12 students. For anyone interested in learning more about the decline of amphibians, this site offers a useful place from which to start.

457

Web of Life Game  

NSDL National Science Digital Library

This offline OLogy game is a fun way to illustrate how all the organisms in an ecosystem are connected and depend on one another to survive. To play this game, you'll need at least six students and index cards, a marker/pen, and a ball of twine. A list of organisms to connect is included. As students toss the ball of twine to each other, they make connections between the organisms they are linking. The game ends with a discussion about what would happen to the "web of life" that's been created if an organism left the ecosystem.

458

SeaWeb  

NSDL National Science Digital Library

SeaWeb is a project designed to raise awareness of the world's oceans and the lifeforms within them, and to encourage conservation efforts. Information provided here includes the latest news about ocean-related issues, audio files of the Ocean Report which provides a tour of the world's oceans, email updates, a bookstore, and an on-line book about issues facing our oceans. This includes habitats, fisheries and other issues. This site is searchable and provides links and resources for further information.

459

Web Capacity Planning  

NSDL National Science Digital Library

This course teaches a quantitative approach to analyzing client/server and Web-based systems. Students will learn how to develop performance predictive models for capacity planning. Instead of relying on intuition, ad hoc procedures, and rules of thumb, students will learn a uniform and formal way for dealing with performance problems. The performance models are based on the theory of queuing networks. By the end of the summer each student will complete, as part of a team, a performance capacity planning study on a real computing system.

Apon, Amy

460

TechWeb Encyclopedia  

NSDL National Science Digital Library

TechWeb Network is an online resource for IT professionals providing "contextual access to the resources of CMP's network of industry-leading technology publications." The site offers this handy encyclopedia of technology terms where visitors can search a database of over 20,000 IT terms. Results are given as short definitions with links to related terms, along with links to definitions of other terms that are similar to the original term requested. For fun, visitors will also find a featured "random definition" and can browse the top 10 requested definitions.

461

The Victorian Web  

NSDL National Science Digital Library

Based at Nagoya University in Japan, The Victorian Web presents a wide range of materials on the times and mores of this historical era. The materials are arranged into over one dozen sections, including "Technology", "Religion", and "Authors". Clicking on each of these areas will reveal a set of additional links that contain thematic essays and visual materials that address each theme. Visitors should also note that there is a "What's New?" area that contains the latest updates to the site. The "Bibliography" area is a good resource for young scholars, and it contains listings on "Readings in Victorian Religion", "Victorian Architecture", and "Science and Society in Victorian Britain".

462

Large area CMOS image sensors  

Microsoft Academic Search

CMOS image sensors, also known as CMOS Active Pixel Sensors (APS) or Monolithic Active Pixel Sensors (MAPS), are today the dominant imaging devices. They are omnipresent in our daily life, as image sensors in cellular phones, web cams, digital cameras, ... In these applications, the pixels can be very small, in the micron range, and the sensors themselves tend to

R. Turchetta; N. Guerrini; I. Sedgwick

2011-01-01

463

WebProphet: Automating Performance Prediction for Web Services  

Microsoft Academic Search

Today, large-scale web services run on complex sys- tems, spanning multiple data centers and content dis- tribution networks, with performance depending on di- verse factors in end systems, networks, and infrastructure servers. Web service providers have many options for improving service performance, varying greatly in feasi- bility, cost and benet, but have few tools to predict the impact of these

Zhichun Li; Ming Zhang; Zhaosheng Zhu; Yan Chen; Albert G. Greenberg; Yi-Min Wang

2010-01-01

464

Bringing Web 2.0 to Web Lectures  

ERIC Educational Resources Information Center

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…

Ketterl, Markus; Mertens, Robert; Vornberger, Oliver

2009-01-01

465

Work of the Web Weavers: Web Development in Academic Libraries  

ERIC Educational Resources Information Center

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…

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

2009-01-01

466

Building the web server for a web systems class  

Microsoft Academic Search

One major element in IT education is teaching many students how to develop and maintain Web applications, which presents a sizable challenge for universities that standard business environments do not encounter. Each student must have a separate place for storing HTML, JavaScript, Perl, PHP, MySQL, and JSP web systems on the server. As a result, multiple programs must be able

Nathan H. Blackham; Michael G. Bailey; Todd Berrett

2004-01-01

467

WebSim: A Web-based Semantic Similarity Measure  

Microsoft Academic Search

Semantic similarity measures are important for numerous tasks in natural language processing such as word sense disambiguation, automatic synonym extraction, language modelling and document clustering. We propose a method to measure semantic similarity between two words using information available on the Web. We extract page counts and snippets for the AND query of the two words from a Web search

Danushka Bollegala; Yutaka Matsuo; Mitsuru Ishizuka

2007-01-01

468

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

ERIC Educational Resources Information Center

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,…

Dillon, Martin

469

Web Service Orchestration of OGC Web Services for Disaster Management  

Microsoft Academic Search

Summary Flexibility and reusability are major goals when developing complex applications based on OGC Web Services (OWS). Within the project OK- GIS ( www.ok-gis.de ) we evaluate the suitability of the Web Service Or- chestration (WSO) technology as possible solution for disaster manage- ment scenarios. We present an example of a part of an evacuation scenario after a bomb has

Albrecht Weiser; Alexander Zipf

2007-01-01

470

WebGL implementation in WebKit based web browser on Android platform  

Microsoft Academic Search

Android OS has gained much popularity in relatively short period, spreading from mobile devices into set-top box, automotive and internet tablet markets. To meet users' growing expectations of multimedia content delivery methods new open standards, like HTML5 and WebGL, are introduced. WebGL is accelerated 3D graphics library for web, based on OpenGL ES 2.0 (hereinafter GLES2). This paper presents one

Dorde Golubovic; Goran Miljkovic; Svetozar Miucin; Zvonimir Kaprocki; Vladimir Velisavljev

2011-01-01

471

The rendering context for stereoscopic 3D web  

NASA Astrophysics Data System (ADS)

3D technologies on the Web has been studied for many years, but they are basically monoscopic 3D. With the stereoscopic technology gradually maturing, we are researching to integrate the binocular 3D technology into the Web, creating a stereoscopic 3D browser that will provide users with a brand new experience of human-computer interaction. In this paper, we propose a novel approach to apply stereoscopy technologies to the CSS3 3D Transforms. Under our model, each element can create or participate in a stereoscopic 3D rendering context, in which 3D Transforms such as scaling, translation and rotation, can be applied and be perceived in a truly 3D space. We first discuss the underlying principles of stereoscopy. After that we discuss how these principles can be applied to the Web. A stereoscopic 3D browser with backward compatibility is also created for demonstration purposes. We take advantage of the open-source WebKit project, integrating the 3D display ability into the rendering engine of the web browser. For each 3D web page, our 3D browser will create two slightly different images, each representing the left-eye view and right-eye view, both to be combined on the 3D display to generate the illusion of depth. And as the result turns out, elements can be manipulated in a truly 3D space.

Chen, Qinshui; Wang, Wenmin; Wang, Ronggang

2014-03-01

472

A SOAP Web Service for accessing MODIS land product subsets  

SciTech Connect

Remote sensing data from satellites have provided valuable information on the state of the earth for several decades. Since March 2000, the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor on board NASA s Terra and Aqua satellites have been providing estimates of several land parameters useful in understanding earth system processes at global, continental, and regional scales. However, the HDF-EOS file format, specialized software needed to process the HDF-EOS files, data volume, and the high spatial and temporal resolution of MODIS data make it difficult for users wanting to extract small but valuable amounts of information from the MODIS record. To overcome this usability issue, the NASA-funded Distributed Active Archive Center (DAAC) for Biogeochemical Dynamics at Oak Ridge National Laboratory (ORNL) developed a Web service that provides subsets of MODIS land products using Simple Object Access Protocol (SOAP). The ORNL DAAC MODIS subsetting Web service is a unique way of serving satellite data that exploits a fairly established and popular Internet protocol to allow users access to massive amounts of remote sensing data. The Web service provides MODIS land product subsets up to 201 x 201 km in a non-proprietary comma delimited text file format. Users can programmatically query the Web service to extract MODIS land parameters for real time data integration into models, decision support tools or connect to workflow software. Information regarding the MODIS SOAP subsetting Web service is available on the World Wide Web (WWW) at http://daac.ornl.gov/modiswebservice.

SanthanaVannan, Suresh K [ORNL; Cook, Robert B [ORNL; Pan, Jerry Yun [ORNL; Wilson, Bruce E [ORNL

2011-01-01

473

Error diffusion using the web-safe colors: how good is it across platforms?  

NASA Astrophysics Data System (ADS)

Accurate color rendering across displays is complicated on the World Wide Web by the color-handling properties of individual web browsers. However, the major browsers have all adopted a minimal color palette of 216 RGB triples, called the `browser-safe' colors, suitable for use with web page backgrounds and text, logos, cartoons, and line drawings. For naturalistic or photographic images, however, simple quantization to 216 colors can produce images with altered hues or color banding. We show that dithering with the browser-safe colors is a good strategy for such images, especially at spatial resolutions above 150 dpi. However, even if the RGB image is transmitted and received unaltered, the system gamma will affect appearance. Ambient lighting contributes to the rendered image's appearance, but does not mask the effects of differences in monitor gammas. The need for an image-rendering convention traceable to the CIE is underscored by these results.

Gille, Jennifer; Luszcz, Jeff; Larimer, James O.

1998-07-01

474

Web2Quests: Updating a Popular Web-Based Inquiry-Oriented Activity  

ERIC Educational Resources Information Center

WebQuest is a popular inquiry-oriented activity in which learners use Web resources. Since the creation of the innovation, almost 15 years ago, the Web has changed significantly, while the WebQuest technique has changed little. This article examines possible applications of new Web trends on WebQuest instructional strategy. Some possible…

Kurt, Serhat

2009-01-01

475

"WebQuests 101": Tips on Choosing and Assessing WebQuests.  

ERIC Educational Resources Information Center

Defines WebQuests as a specific kind of Web-based learning activity and discusses how to choose and assess WebQuests. Explains a rubric to assess the strengths and weaknesses of WebQuests and includes Web sites to view examples of WebQuests. (LRW)

March, Tom

2000-01-01

476

Working with WebQuests: Making the Web Accessible to Students with Disabilities.  

ERIC Educational Resources Information Center

This article describes how students with disabilities in regular classes are using the WebQuest lesson format to access the Internet. It explains essential WebQuest principles, creating a draft Web page, and WebQuest components. It offers an example of a WebQuest about salvaging the sunken ships, Titanic and Lusitania. A WebQuest planning form is…

Kelly, Rebecca

2000-01-01

477

WebStage: an active media enhanced World Wide Web browser  

Microsoft Academic Search

The World Wide Web provides us with enormous opportunities to obtain global information. However, conventional browsers are time-intensive, requiring many operations with attendant mental concentration, to view the Web pages. This can ofien discourage people from seeking access to the Web. In this paper, we present an “active” Web browser, named “WebStage”. Unlike conventional browsers, it displays Web pages using

Tomoharu Yamaguchi; Itaru Hosomi; Toshiaki Miyashita

1997-01-01

478

WebPosition Gold Search Engine and Web Promotion Software  

NSDL National Science Digital Library

A product of FirstPlace Software, WebPosition Gold provides a way to increase traffic to your Web site without spending advertising dollars. WebPosition Gold generates HTML pages designed to rank near the top of search results, analyzes existing Web pages, gives advice on how to improve upon pages, assists in uploading new and changed pages, automatically submits pages to major search engines, and reports positions on each search engine for each keyword targeted. It also tracks the number of visitors to your site, where they came from, and what keywords they used to access the site. Before trying the working free trial version of WebPosition Gold, users must register (name and e-mail address) for notification of any product announcements or new updates. However, users may unsubscribe at any time.

1997-01-01

479

Web Search Studies: Multidisciplinary Perspectives on Web Search Engines  

NASA Astrophysics Data System (ADS)

Perhaps the most significant tool of our internet age is the web search engine, providing a powerful interface for accessing the vast amount of information available on the world wide web and beyond. While still in its infancy compared to the knowledge tools that precede it - such as the dictionary or encyclopedia - the impact of web search engines on society and culture has already received considerable attention from a variety of academic disciplines and perspectives. This article aims to organize a meta-discipline of “web search studies,” centered around a nucleus of major research on web search engines from five key perspectives: technical foundations and evaluations; transaction log analyses; user studies; political, ethical, and cultural critiques; and legal and policy analyses.

Zimmer, Michael

480

FPA Depot - Web Application  

NASA Technical Reports Server (NTRS)

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.

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

2011-01-01

481

The Web Nebulae  

NSDL National Science Digital Library

This website provides a collection of images of well-known planetary nebulae, supernovae remnants, and other objects. The images provided include: the Orion nebula, the Horsehead Nebula, the Cat's Eye Nebula, the crab Nebula, and Supernova 1987a. Short descriptions of each object, and its interesting features, are included.

Arnett, Bill

2004-07-14

482

Discovery and Classification of Bioinformatics Web Services.  

National Technical Information Service (NTIS)

The transition of the World Wide Web from a paradigm of static Web pages to one of dynamic Web services provides new and exciting opportunities for bioinformatics with respect to data dissemination, transformation, and integration. However, the rapid grow...

D. Rocco T. Critchlow

2002-01-01

483

Thin film-coated polymer webs  

DOEpatents

The present invention relates to thin film-coated polymer webs, and more particularly to thin film electronic devices supported upon a polymer web, wherein the polymer web is treated with a purifying amount of electron beam radiation.

Wenz, Robert P. (Cottage Grove, MN); Weber, Michael F. (Shoreview, MN); Arudi, Ravindra L. (Woodbury, MN)

1992-02-04

484

Course Development on the World Wide Web.  

ERIC Educational Resources Information Center

Guidelines for developing Web-based course materials include considerations of available resources, how technology aids in meeting curricular goals and objectives, Web-site design and construction, and Web-course evaluation. (SK)

King, Kathleen P.

1998-01-01

485

Geospatial mapping and navigation of the web  

Microsoft Academic Search

Web pages may be organized, indexed, searched, and navi- gated along several dierent feature dimensions. We investi- gate dierent approaches to discovering geographic context for web pages, and describe a navigational tool for browsing web resources by geographic proximity.

Kevin S. McCurley

2001-01-01

486

Replication for web hosting systems  

Microsoft Academic Search

Replication is a well-known technique to improve the accessibility of Web sites. It generally offers reduced client latencies and increases a site's availability. However, applying replication techniques is not trivial, and various Content Delivery Networks (CDNs) have been created to facilitate replication for digital content providers. The success of these CDNs has triggered further research efforts into developing advanced Web

Swaminathan Sivasubramanian; Michal Szymaniak; Guillaume Pierre; Maarten van Steen

2004-01-01

487

Digging Deeper: The Deep Web.  

ERIC Educational Resources Information Center

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…

Turner, Laura

2001-01-01

488

Advanced dendritic web growth development  

NASA Technical Reports Server (NTRS)

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.

Hopkins, R. H.

1985-01-01

489

Dynamics of Semiconductor ``Web'' Growth  

Microsoft Academic Search

The dynamics of ``web'' growth have been investigated, with particular emphasis on the meniscus. The meniscus deflections have been expressed as a function of surface tension, and pulling force. An effort is being made to describe the parameters which influence surface tension, and its reflection on the process of web growth, and the properties of the material. The degree of

S. N. Dermatis

1965-01-01

490

The Great Lakes Food Web.  

ERIC Educational Resources Information Center

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)

Baker, Marjane L.

1997-01-01

491

Web Accessibility and Accessibility Instruction  

ERIC Educational Resources Information Center

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…

Green, Ravonne A.; Huprich, Julia

2009-01-01

492

Next Generation Semantic Web Applications  

Microsoft Academic Search

In this short paper, we examine current Semantic Web application and we highlight what we see as a shift away from first generation Semantic Web applications, towards a new generation of applications, designed to exploit the large amounts of heterogeneous semantic markup, which are increasingly becoming available. Our analysis aims both to highlight the main features that can be used

Enrico Motta; Marta Sabou

2006-01-01

493

Accessible Web Design. ERIC Digest.  

ERIC Educational Resources Information Center

Despite the widespread availability of Web-based information resources, it is difficult for some people who rely on assistive technology to access and process these materials. Web designers can play an active role in facilitating access by formatting resources so that they are compatible with these technologies. This can be accomplished by…

Sprague, Carolyn Ann

494

Web mining research: a survey  

Microsoft Academic Search

With the huge amount of information available online, the World Wide Web is a fertile area for data mining research. The Web mining research is at the cross road of research from several research communities, such as database, infor- mation retrieval, and within AI, especially the sub-areas of machine learning and natural language processing. How- ever, there is a lot

Raymond Kosala; Hendrik Blockeel

2000-01-01

495

Culturally Responsive Educational Web Sites.  

ERIC Educational Resources Information Center

Discusses the shortcomings of multicultural education; presents Vygotsky's sociocognitive theory as a model for multicultural education for the World Wide Web; and discusses the process of Web design as an appropriate technological tool to apply Vygotsky's theory to create culturally responsive educational environments. (Contains 9 references.)…

Gillani, Bijan B.

2000-01-01

496

Wrapping web data into XML  

Microsoft Academic Search

The vast majority of online information is part of the World Wide Web. In order to use this information for more than human browsing, web pages in HTML must be converted into a format meaningful to software programs. Wrappers have been a useful technique to convert HTML documents into semantically meaningful XML files. However, developing wrappers is slow and labor-intensive.

Wei Han; David Buttler; Calton Pu

2001-01-01

497

Web Tools: The Second Generation  

ERIC Educational Resources Information Center

Web 2.0 tools and technologies, or second generation tools, help districts to save time and money, and eliminate the need to transfer or move files back and forth across computers. Many Web 2.0 tools help students think critically and solve problems, which falls under the 21st-century skills. The second-generation tools are growing in popularity…

Pascopella, Angela

2008-01-01

498

The World Wide Web Revisited  

ERIC Educational Resources Information Center

Nearly a decade ago the author wrote in one of the first widely-cited academic articles, Educational Researcher, about the educational role of the web. He argued that educators must be able to demonstrate that the web (1) can increase access to learning, (2) must not result in higher costs for learning, and (3) can lead to improved learning. These…

Owston, Ron

2007-01-01

499

Working with WebQuests  

ERIC Educational Resources Information Center

With the evolution of technology, students can now take online classes that may not be offered in their home schools. While online courses are commonly found in many high schools, WebQuests are used more commonly in elementary schools. Through the exploration of WebQuests, students are able to integrate the Internet into classroom activities. The…

Raulston, Cassie; Moellinger, Donna

2007-01-01

500

Guide to Computer Vendors Web  

NSDL National Science Digital Library

The Guide to Computer Vendors Web page offers many if not most of the URL's for computer hardware and software vendors, as well as a comprehensive vendor phone book and links to many of the computer magazines on the Web. There is no search capability but browsing is fairly easy using the alphabetical index.