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1

Guidelines for Making Web Content Accessible to All Users  

ERIC Educational Resources Information Center

The main goal of accessibility standards and guidelines is to design websites everyone can use. The "IT Accessibility Constituent Group" developed this set of draft guidelines to help EQ authors, reviewers, and staff and the larger EDUCAUSE community ensure that web content is accessible to all users, including those with disabilities. This…

Thompson, Terrill; Primlani, Saroj; Fiedor, Lisa

2009-01-01

2

Accessing multimedia content from mobile applications using semantic web technologies  

NASA Astrophysics Data System (ADS)

We describe the ideas and results of an applied research project that aims at leveraging the expressive power of semantic web technologies as a server-side backend for mobile applications that provide access to location and multimedia data and allow for a rich user experience in mobile scenarios, ranging from city and museum guides to multimedia enhancements of any kind of narrative content, including e-book applications. In particular, we will outline a reusable software architecture for both server-side functionality and native mobile platforms that is aimed at significantly decreasing the effort required for developing particular applications of that kind.

Kreutel, Jörn; Gerlach, Andrea; Klekamp, Stefanie; Schulz, Kristin

2014-02-01

3

48 CFR 311.7001 - Section 508 accessibility standards for HHS Web site content and communications materials.  

Code of Federal Regulations, 2010 CFR

...Section 508 accessibility standards for HHS Web site content and communications materials...Section 508 accessibility standards for HHS Web site content and communications materials...delivery via, an HHS-owned or -funded Web site. (b) Accordingly,...

2010-10-01

4

SWS: accessing SRS sites contents through Web Services  

PubMed Central

Background Web Services and Workflow Management Systems can support creation and deployment of network systems, able to automate data analysis and retrieval processes in biomedical research. Web Services have been implemented at bioinformatics centres and workflow systems have been proposed for biological data analysis. New databanks are often developed by taking into account these technologies, but many existing databases do not allow a programmatic access. Only a fraction of available databanks can thus be queried through programmatic interfaces. SRS is a well know indexing and search engine for biomedical databanks offering public access to many databanks and analysis tools. Unfortunately, these data are not easily and efficiently accessible through Web Services. Results We have developed ‘SRS by WS’ (SWS), a tool that makes information available in SRS sites accessible through Web Services. Information on known sites is maintained in a database, srsdb. SWS consists in a suite of WS that can query both srsdb, for information on sites and databases, and SRS sites. SWS returns results in a text-only format and can be accessed through a WSDL compliant client. SWS enables interoperability between workflow systems and SRS implementations, by also managing access to alternative sites, in order to cope with network and maintenance problems, and selecting the most up-to-date among available systems. Conclusions Development and implementation of Web Services, allowing to make a programmatic access to an exhaustive set of biomedical databases can significantly improve automation of in-silico analysis. SWS supports this activity by making biological databanks that are managed in public SRS sites available through a programmatic interface.

Romano, Paolo; Marra, Domenico

2008-01-01

5

An Investigation into Web Content Accessibility Guideline Conformance for an Aging Population  

ERIC Educational Resources Information Center

Poor web site design can cause difficulties for specific groups of users. By applying the Web Content Accessibility Guidelines to a web site, the amount of possible users who can successfully view the content of that site will increase, especially for those who are in the disabled and older adult categories of online users. Older adults are coming…

Curran, Kevin; Robinson, David

2007-01-01

6

Web Content Accessibility of Consumer Health Information Web Sites for People with Disabilities: A Cross Sectional Evaluation  

PubMed Central

Background The World Wide Web (WWW) has become an increasingly essential resource for health information consumers. The ability to obtain accurate medical information online quickly, conveniently and privately provides health consumers with the opportunity to make informed decisions and participate actively in their personal care. Little is known, however, about whether the content of this online health information is equally accessible to people with disabilities who must rely on special devices or technologies to process online information due to their visual, hearing, mobility, or cognitive limitations. Objective To construct a framework for an automated Web accessibility evaluation; to evaluate the state of accessibility of consumer health information Web sites; and to investigate the possible relationships between accessibility and other features of the Web sites, including function, popularity and importance. Methods We carried out a cross-sectional study of the state of accessibility of health information Web sites to people with disabilities. We selected 108 consumer health information Web sites from the directory service of a Web search engine. A measurement framework was constructed to automatically measure the level of Web Accessibility Barriers (WAB) of Web sites following Web accessibility specifications. We investigated whether there was a difference between WAB scores across various functional categories of the Web sites, and also evaluated the correlation between the WAB and Alexa traffic rank and Google Page Rank of the Web sites. Results We found that none of the Web sites we looked at are completely accessible to people with disabilities, i.e., there were no sites that had no violation of Web accessibility rules. However, governmental and educational health information Web sites do exhibit better Web accessibility than the other categories of Web sites (P < 0.001). We also found that the correlation between the WAB score and the popularity of a Web site is statistically significant (r = 0.28, P < 0.05), although there is no correlation between the WAB score and the importance of the Web sites (r = 0.15, P = 0.111). Conclusions Evaluation of health information Web sites shows that no Web site scrupulously abides by Web accessibility specifications, even for entities mandated under relevant laws and regulations. Government and education Web sites show better performance than Web sites among other categories. Accessibility of a Web site may have a positive impact on its popularity in general. However, the Web accessibility of a Web site may not have a significant relationship with its importance on the Web.

Parmanto, Bambang

2004-01-01

7

The Content and Access Dynamics of a Busy Web Site: Findings and Implications  

Microsoft Academic Search

In this paper, we study the dynamics of one of the busiest Web sites in the Internet today. Unlike many other efforts that have analyzed client accesses as seen by proxies, we focus on the server end. We analyze the dynamics of both the server content and client accesses made to the server. The former considers the content creation and

Venkata N. Padmanabhan; Lili Qiu

2000-01-01

8

Models for User Access Patterns on the Web: Semantic Content versus Access History.  

ERIC Educational Resources Information Center

This paper focuses on clustering a World Wide Web site (i.e., the 1998 World Cup Soccer site) into groups of documents that are predictive of future user accesses. Two approaches were developed and tested. The first approach uses semantic information inherent in the documents to facilitate the clustering process. User access history is then used…

Ross, Arun; Owen, Charles B.; Vailaya, Aditya

9

OntoSeek: content-based access to the Web  

Microsoft Academic Search

For online yellow pages and product catalogs, structured content representations coupled with linguistic ontologies can increase both recall and precision of content based retrieval. Our OntoSeek system adopts a language of limited expressiveness for content representation and uses a large ontology based on WordNet for content matching. WordNet is a linguistic database formed by synsets-terms grouped into semantic equivalence sets,

N. Guarino; C. Masolo; G. Vetere

1999-01-01

10

Enhancing Accessibility of Web Content for the Print-Impaired and Blind People  

NASA Astrophysics Data System (ADS)

Blind people and in general print-impaired people are often restricted to use their own computers, enhanced most often with expensive, screen reading programs, in order to access the web, and in a form that every screen reading program allows to. In this paper we present SpellCast Navi, a tool that is intended for people with visual impairments, which attempts to combine advantages from both customized and generic web enhancement tools. It consists of a generically designed engine and a set of case-specific filters. It can run on a typical web browser and computer, without the need of installing any additional application locally. It acquires and parses the content of web pages, converts bi-lingual text into synthetic speech using high quality speech synthesizer, and supports a set of common functionalities such as navigation through hotkeys, audible navigation lists and more. By using a post-hoc approach based on a-priori information of the website's layout, the audible presentation and navigation through the website is more intuitive a more efficient than with a typical screen reading application. SpellCast Navi poses no requirements on web pages and introduces no overhead to the design and development of a website, as it functions as a hosted proxy service.

Chalamandaris, Aimilios; Raptis, Spyros; Tsiakoulis, Pirros; Karabetsos, Sotiris

11

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

12

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

13

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

14

World Wide Access: Accessible Web Design.  

ERIC Educational Resources Information Center

This brief paper considers the application of "universal design" principles to Web page design in order to increase accessibility for people with disabilities. Suggestions are based on the World Wide Web Consortium's accessibility initiative, which has proposed guidelines for all Web authors and federal government standards. Seven guidelines for…

Washington Univ., Seattle.

15

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

16

Social Information Access: The Other Side of the Social Web  

Microsoft Academic Search

Modern Web, which is frequently called Social Web or Web 2.0, celebrates the power of the user community. Most frequently it is associated with the power of users as contributors or various kinds of contents through Wikis, blogs, and resource sharing sites. However, the community power impacts not only the production of Web content, but also the access to all

Peter Brusilovsky

2008-01-01

17

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

18

A Framework for Transparently Accessing Deep Web Sources  

ERIC Educational Resources Information Center

An increasing number of Web sites expose their content via query interfaces, many of them offering the same type of products/services (e.g., flight tickets, car rental/purchasing). They constitute the so-called "Deep Web". Accessing the content on the Deep Web has been a long-standing challenge for the database community. For a user interested in…

Dragut, Eduard Constantin

2010-01-01

19

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

20

Improving Web Accessibility in a University Setting  

ERIC Educational Resources Information Center

Improving Web accessibility for disabled users visiting a university's Web site is explored following the World Wide Web Consortium (W3C) guidelines and Section 508 of the Rehabilitation Act rules for Web page designers to ensure accessibility. The literature supports the view that accessibility is sorely lacking, not only in the USA, but also…

Olive, Geoffrey C.

2010-01-01

21

Designing Accessible Web-based Courses.  

ERIC Educational Resources Information Center

Provides an overview of the existing Web accessibility guidelines under the Rehabilitation Act of 1973, reviews current laws and court cases involving Web accessibility issues, and discusses ways in which Web pages can be modified to meet the needs of all students. Includes online resources to help design accessible Web pages. (Author/LRW)

Hricko, Mary

2000-01-01

22

Analyzing web access control policies  

Microsoft Academic Search

XACML has emerged as a popular access control language on the Web, but because of its rich expressiveness, it has proved dicult to analyze in an automated fashion. In this paper, we present a formalization of XACML using descrip- tion logics (DL), which are a decidable fragment of First- Order logic. This formalization allows us to cover a more expressive

Vladimir Kolovski; James A. Hendler; Bijan Parsia

2007-01-01

23

Usability of AcceSS for Web Site Accessibility. Research Report  

ERIC Educational Resources Information Center

The standard display of web pages is inadequate for users who are visually impaired. Most visually impaired people obtain information from a web page in a linear fashion via a screen reader, whereas sighted users can immediately obtain a bird's-eye view of a web page's organization and content by quickly scanning the page. AcceSS (which stands for…

Hackett, Stephanie; Parmanto, Bambang

2006-01-01

24

Blocking objectionable web content by leveraging multiple information sources  

Microsoft Academic Search

The World Wide Web has now become a humongous archive of various contents. The inordinate amount of information found on the web presents a challenge to deliver right infor- mation to the right users. On one hand, the abundant infor- mation is freely accessible to all web denizens; on the other hand, much of such information may be irrelevant or

Nitin Agarwal; Huan Liu; Jianping Zhang

2006-01-01

25

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

26

Marcov Models for Web Access Prediction  

Microsoft Academic Search

The problem of predicting user's behavior on a Web site has fundamental significance due to the rapid growth of the World Wide Web. Although traditional Markov models have been found to be suited for addressing this problem, they have serious limitations. Thus, good predictions require new Markov models. Hybrid-order tree-like Markov models predict Web access precisely while providing high coverage

Raluca Popa; Tihamér Levendovszky

27

On proxy agents, mobility, and web access  

Microsoft Academic Search

With the emerging need for ubiquitous access to information, web access from mobile clients is gaining increasing importance. Unfortunately, the underlying protocols of the web are not designed to support operations from a resource poor platform in a low bandwidth, disconnection prone environment. Efforts to create systems to support mobile browsing have typically been proxy-based. However, such solutions have recently

Anupam Joshi

2000-01-01

28

Web site accessibility: an online sector analysis  

Microsoft Academic Search

Under the Americans with Disabilities Act (ADA), companies must provide customers with disabilities access to their “physical” stores. With the advent of the pure Web store, some wonder if the ADA will extend into “cyberspace”. So, are companies ready? This study assesses Web sites to determine their readiness. Results reveal that only 9 percent of the sites have accessible home

Eleanor T. Loiacono; Scott Mccoy

2004-01-01

29

A Regression Model-Based Approach to Accessing the Deep Web  

Microsoft Academic Search

An increasing number of data sources become available on the Web now, but often their contents are only accessible through query interfaces. For a domain of interest, accessing deep Web content has been a long-standing challenge. In this paper, we propose a deep Web crawling approach based on ordinal regression model. We divide page into 3 levels, and take the

Jing Liu

2011-01-01

30

Expected Utility of Content Blocks in Web Content Extraction  

Microsoft Academic Search

In this paper we discuss the possible application of new concept s in web content extraction: utility assessment, utility annealing, and dynamic aggregated document generation. After analysis of the state of the art in web content extraction, results of a survey study among Polish managers are presented. The discussion covers a web content extraction system with possible extensions that may

Marek Kowalkiewicz

2006-01-01

31

Learning Web Accessibility with ASP.NET  

Microsoft Academic Search

This project was based on anecdotal evidence that students often do not make the connection between practical web development and accessibility issues that they have learned in other modules. As part of this project, an e-learning website in which the teaching of accessibility issues is a natural and integral part of instruction of practical ASP.NET programming has been designed, implemented

Mariana Lilley

32

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

33

Accessing the deep web: when good ideas go bad  

Microsoft Academic Search

Prevailing wisdom assumes that there are well-defined, effective and efficient methods for accessing Deep Web content. Unfor- tunately, there are a host of technical and non-technical factors that may call this assumption into question. In this paper, we present the findings from work on a software system, which was commissioned by the British Broadcasting Corporation (BBC). The system requires stable

Alfredo Alba; Varun Bhagwan; Tyrone Grandison

2008-01-01

34

Distribution of adaptation services for ubiquitous Web access driven by user profiles  

Microsoft Academic Search

The popularity of ubiquitous Web access requires run- time adaptations of the Web contents. A significant trend in these content adaptation services is the growing amount of personalization required by users. Personalized servic es are and will be a key feature for the success of the ubiqui- tous Web, but they open two critical issues: performance and profile management. Issues

Claudia Canali; Michele Colajanni; Riccardo Lancellotti

35

Web Accessibility Theory and Practice: An Introduction for University Faculty  

ERIC Educational Resources Information Center

Web accessibility is the practice of making Web sites accessible to all, particularly those with disabilities. As the Internet becomes a central part of post-secondary instruction, it is imperative that instructional Web sites be designed for accessibility to meet the needs of disabled students. The purpose of this article is to introduce Web

Bradbard, David A.; Peters, Cara

2010-01-01

36

Web Design for Accessibility: Policies and Practice.  

ERIC Educational Resources Information Center

Discusses Web design for people with disabilities and outlines a process-based approach to accessibility policy implementation. Topics include legal mandates; determining which standards apply to a given organization; validation, or evaluation of the site; site architecture; navigation; and organizational needs. (Author/LRW)

Foley, Alan; Regan, Bob

2002-01-01

37

Method, apparatus and system for management of information content for enhanced accessibility over wireless communication networks  

US Patent & Trademark Office Database

Information content is managed in a network-based communication system by providing a first web-based interface accessible to a first user, the first web-based interface being configured to permit the first user to designate at least one data source that is external to the first web-based interface, maintaining persistent information content on behalf of the first user including content obtained from the data source designated by the first user, and generating a second web-based interface different than the first web-based interface, wherein access to at least a portion of the persistent information content is provided to each of one or more additional users via the second web-based interface in a manner controlled by the first user via the first web-based interface to thereby facilitate interaction between the first and additional users. The first and second web-based interfaces may comprise respective content management and mobile web sites.

2014-07-29

38

Stolen Content: Avoiding Trouble on the Web.  

ERIC Educational Resources Information Center

Cautions professors and universities on Web-related copyright infringement. Explores the copyright implications of scenarios such as the posting of class readings on the Web (including issues of access and purpose, institutional liability, and permission), the posting of course notes, and ownership of lectures. (EV)

Ginsburg, Jane C.

2001-01-01

39

A Content Standard for Computational Models; Digital Rights Management (DRM) Architectures; A Digital Object Approach to Interoperable Rights Management: Finely-Grained Policy Enforcement Enabled by a Digital Object Infrastructure; LOCKSS: A Permanent Web Publishing and Access System; Tapestry of Time and Terrain.  

ERIC Educational Resources Information Center

Includes five articles. Topics include requirements for a content standard to describe computational models; architectures for digital rights management systems; access control for digital information objects; LOCKSS (Lots of Copies Keep Stuff Safe) that allows libraries to run Web caches for specific journals; and a Web site from the U.S.…

Hill, Linda L.; Crosier, Scott J.; Smith, Terrence R.; Goodchild, Michael; Iannella, Renato; Erickson, John S.; Reich, Vicky; Rosenthal, David S. H.

2001-01-01

40

Design and Implementation of User-Managed Access Framework Web 2.0 Applications.  

National Technical Information Service (NTIS)

Web 2.0 applications allow individuals to manage their content online and to share it with other users and services on the Web. Such sharing requires access control to be put in place. Existing access control solutions, however, are unsatisfactory as they...

A. van Moorsel L. Moren M. P. Machulak

2010-01-01

41

Mandatory Access Control applications to web hosting  

Microsoft Academic Search

\\u000a “Hosting” represents a commonplace solution for the low-cost implementation of web sites through the efficient sharing of\\u000a the resources of a single server. The arising security problems, however, are not always easily dealt with under the Discretionary\\u000a Access Control model implemented by traditional operating systems. More robust separation between the hosted sites, as well\\u000a as more robust protection of the

Marco Prandini; Eugenio Faldella; Roberto Laschi

2007-01-01

42

Adapting Multimedia Internet Content for Universal Access  

Microsoft Academic Search

Content delivery over the Internet needs to address both the multimedia nature of the content and the capabilities of the diverse client platforms the content is being delivered to. We present a system that adapts multimedia Web documents to optimally match the capabilities of the client device requesting it. This system has two key components: We model the selection process

Rakesh Mohan; John R. Smith; Chung-sheng Li

1999-01-01

43

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

44

Web Services Supporting Accessible Seismic Data Interoperability  

NASA Astrophysics Data System (ADS)

The IRIS DMC is enhancing its outreach to many earth science communities and networks through its growing development of web services, providing easy access to data and transformation services relating to seismic data, instrumentation, and earthquake information from many sources. Interoperability and community adoption are spearheaded through a number of approaches: 1) the use of consistent query patterns across services, 2) data format transformations compatible with ubiquitous software tools and non-domain (non-seismological) science, 3) adoption of community-fostered XML schemas, and 4) access enablement through client tools and libraries, workflow support, and access layers to commonly used analysis packages. The key ingredient to the success of interoperability is not merely through protocols, code, and documentation. IRIS DMC has undertaken the process of community engagement, working in a cooperative fashion with other data centers, software developers, and stakeholder scientists, to ensure that what is constructed has the promise of widespread adoption and cross-institutional data sharing and discovery.

Casey, R.; Ahern, T. K.; Benson, R. B.; Trabant, C.

2011-12-01

45

A XACML-based access control model for Web service  

Microsoft Academic Search

One of the most important features of Web service is ease of access over the Internet. But the downside is that security is compromised. This paper presents an access control model for Web service. It uses XACML (extensible access control markup language) for the description of access control criteria and combines the power of XACML and SAML (security assertion markup

Han Tao

2005-01-01

46

Evaluation of Web Accessibility of Consumer Health Information Websites  

PubMed Central

The objectives of the study are to construct a comprehensive framework for web accessibility evaluation, to evaluate the current status of web accessibility of consumer health information websites and to investigate the relationship between web accessibility and property of the websites. We selected 108 consumer health information websites from the directory service of a Web search engine. We used Web accessibility specifications to construct a framework for the measurement of Web Accessibility Barriers (WAB) of website. We found that none of the websites is completely accessible to people with disabilities, but governmental and educational health information websites exhibit better performance on web accessibility than other categories of websites. We also found that the correlation between the WAB score and the popularity of a website is statistically significant.

Zeng, Xiaoming; Parmanto, Bambang

2003-01-01

47

Net Neutrality and Consumer Access to Content  

Microsoft Academic Search

Net Neutrality' is a very heated and contested United States policy principle regarding access for content providers to the Internet end-user, and potential discrimination in that access where the end-user's ISP (or another ISP) blocks that access in part or whole. The suggestion is that the problem can be resolved by either introducing greater competition, as for instance in certain

Christopher T Marsden

2007-01-01

48

Web Content Delivery to Heterogeneous Mobile Platforms  

Microsoft Academic Search

It is widely acknowledged that information such as web content should be adapted for mobile platforms to account for restrictions in mobile environments. As emerging mobile platforms such as different kinds of Personal Digital Assistant (PDA) tend to vary largely in their capabilities, we suggest that adaptation should be platform-specific. Common approaches for content adaptation are automated conversion and explicit

Martin Gaedke; Michael Beigl; Hans-werner Gellersen; Christian Segor

1998-01-01

49

Web Access Latency Reduction Using CRF-Based Predictive Caching  

NASA Astrophysics Data System (ADS)

Reducing the Web access latency perceived by a Web user has become a problem of interest. Web prefetching and caching are two effective techniques that can be used together to reduce the access latency problem on the Internet. Because the success of Web prefetching mainly relies on the prediction accuracy of prediction methods, in this paper we employ a powerful sequential learning model, Conditional Random Fields (CRFs), to improve the Web page prediction accuracy for Web prefetching. We also propose a predictive caching scheme by incorporating CRF-based Web prefetching and caching together to reduce the perceived waiting time of Web users further. We show in our experiments that by using CRF-based Web predictive caching, we can achieve higher cache hit ratio and thus reduce more access latency with less extra transmission cost when compared with the predictive caching methods based on the well known Markov Chain models.

Guo, Yong Zhen; Ramamohanarao, Kotagiri; Park, Laurence A. F.

50

Mobile Agents for World Wide Web Distributed Database Access  

Microsoft Academic Search

The popularity of the Web as a universal access mechanism for network information has created the need for developing web-based DBMS client\\/server applications. However, the current commercial applet-based approaches for accessing database systems offer limited flexibility, scalability, and robustness. In this paper, we propose a new framework for Web-based distributed access to database systems based on Java-based mobile agents. The

Stavros Papastavrou; George Samaras; Evaggelia Pitoura

2000-01-01

51

Mining High Utility Web Access Sequences in Dynamic Web Log Data  

Microsoft Academic Search

Mining web access sequences can discover very useful knowledge from web logs with broad applications. By considering non-binary occurrences of web pages as internal utilities in web access sequences, e.g., time spent by each user in a web page, more realistic information can be extracted. However, the existing utility-based approach has many limitations such as considering only forward references of

Chowdhury Farhan Ahmed; Syed Khairuzzaman Tanbeer; Byeong-Soo Jeong

2010-01-01

52

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

53

Subscriptions Are Us: Content, Access, & Collections  

ERIC Educational Resources Information Center

In a time of increasingly digital distribution, challenging questions arise regarding what people own, what they want to access to, and how they develop and maintain collections. What considerations influence their decision making, as individuals and libraries shift toward more subscription-oriented content? Digital access to e-books and…

Thomas, Lisa Carlucci

2012-01-01

54

WAM-Miner: in the search of web access motifs from historical web log data  

Microsoft Academic Search

Existing web usage mining techniques focus only on discovering knowledge based on the statistical measures obtained from the static characteristics of web usage data. They do not consider the dynamic nature of web usage data. In this paper, we focus on discovering novel knowledge by analyzing the change patterns of historical web access sequence data. We present an algorithm called

Qiankun Zhao; Sourav S. Bhowmick; Le Gruenwald

2005-01-01

55

Predicting web actions from HTML content  

Microsoft Academic Search

Most proposed Web prefetching techniques make predictions based on the historical references to requested objects. In contrast, this paper examines the accuracy of predicting a user's next action based on analysis of the content of the pages requested recently by the user. Predictions are made using the similarity of a model of the user's interest to the text in and

Brian D. Davison

2002-01-01

56

Direct access to working memory contents.  

PubMed

In two experiments participants held in working memory (WM) three digits in three different colors, and updated individual digits with the results of arithmetic equations presented in one of the colors. In the memory-access condition, a digit from WM had to be used as the first number in the equation; in the no-access condition, complete equations were presented so that no information from WM had to be accessed for the computation. Updating a digit not updated in the preceding step took longer than updating the same digit as in the preceding step, a time difference referred to as object-switch costs. Object-switch costs were equal in access and no-access equations, implying that they did not reflect the time to retrieve a new digit from WM. Access equations were completed as fast as no-access equations, implying that access to information in WM is as fast as reading the same information. No-access equations were slowed by a mismatch between the first digit of the presented equation and the to-be-updated digit in WM, showing that this digit is automatically accessed even when not needed. It is concluded that contents and their contexts form composites in WM that are necessarily accessed together. PMID:20178938

Bialkova, Svetlana; Oberauer, Klaus

2010-01-01

57

Searching the Web: general and scientific information access  

Microsoft Academic Search

The World Wide Web has revolutionized the way people access information, and has opened up new possibilities in areas such as digital libraries, general and scientific information dissemination and retrieval, education, commerce, entertainment, government and health care. There are many avenues for improvement of the Web; for example, in the areas of locating and organizing information. Current techniques for access

Steve Lawrence; C. Lee Giles

1999-01-01

58

Role-based access control on the web  

Microsoft Academic Search

Current approaches to access control on the Web servers do not scale to enterprise-wide systems because they are mostly based on individual user identities. Hence we were motivated by the need to manage and enforce the strong and efficient RBAC access control technology in large-scale Web environments. To satisfy this requirement, we identify two different architectures for RBAC on the

Joon S. Park; Ravi S. Sandhu; Gail-joon Ahn

2001-01-01

59

CobWeb: a proactive analysis-driven approach to content distribution  

Microsoft Academic Search

CobWeb is an open-access content distribution network (CDN) that provides low latency lookups, resilience to flash crowds, and optimal utilization of network resources. Unlike traditional Web caches and CDNs, which rely on ad hoc heuristics for replica placement and cache management, CobWeb achieves superior performance through a unique analysis driven approach. CobWeb derives the optimal replica placement strategy by posing

Yee Jiun Song; Venugopalan Ramasubramanian; Emin Gün Sirer

2005-01-01

60

Towards a Semantic Web of Community, Content and Interactions.  

National Technical Information Service (NTIS)

The Web plays a critical role in hosting Web communities, their content and interactions. A prime example is the open source software (OSS) community, whose members, including software developers and users, interact almost exclusively over the Web. The OS...

A. Ankolekar

2005-01-01

61

Characterizing Web Spam Using Content and HTTP Session Analysis  

Microsoft Academic Search

Web spam research has been hampered by a lack of statis- tically significant collections. In this paper, we perform the first large-scale characterization of web spam using content and HTTP session analysis techniques on the Webb Spam Corpus - a collection of about 350,000 web spam pages. Our content analysis results are consistent with the hypothesis that web spam pages

Steve Webb; James Caverlee; Calton Pu

2007-01-01

62

Access to Space Interactive Design Web Site.  

National Technical Information Service (NTIS)

The Access To Space (ATS) Group at NASA's Goddard Space Flight Center (GSFC) supports the science and technology community at GSFC by facilitating frequent and affordable opportunities for access to space. Through partnerships established with access mode...

J. Leon W. Cutlip M. Hametz

2000-01-01

63

Accessible Website Content Guidelines for Users with Intellectual Disabilities  

ERIC Educational Resources Information Center

Background: The W3C Web Accessibility Initiative has issued guidelines for making websites better and easier to access for people with various disabilities (W3C Web Accessibility Initiative guidelines 1999). Method: The usability of two versions of a website (a non-adapted site and a site that was adapted on the basis of easy-to-read guidelines)…

Karreman, Joyce; van der Geest, Thea; Buursink, Esmee

2007-01-01

64

Downloading textual hidden web content through keyword queries  

Microsoft Academic Search

An ever-increasing amount of information on the Web today is available only through search interfaces: the users have to type in a set of keywords in a search form in order to access the pages from certain Web sites. These pages are often referred to as the Hidden Web or the Deep Web. Since there are no static links to

Alexandros Ntoulas; Petros Zerfos; Junghoo Cho

2005-01-01

65

An access control language for web services  

Microsoft Academic Search

This paper presents an approach for formally specifying and enforcing security policies on web service implementations. Networked services in general, and web services in particular, require extensive amounts of code to ensure that clients respect site-integrity constraints. We provide a language by which these constraints can be expressed and enforced automatically, portably and efficiently. Security policies in our system are

Emin Gün Sirer; Ke Wang

2002-01-01

66

Consistent, yet anonymous, Web access with LPWA  

Microsoft Academic Search

This paper describes the Lucent Personalized Web Assistant (LPWA), a novel software systemdesigned to address these user concerns. Users may browse the web in a personalized, simple,private, and secure fashion using LPWA-generated aliases and other LPWA features. LPWA gen-

Eran Gabber; Phillip B. Gibbons; David M. Kristol; Yossi Matias; Alain J. Mayer

1999-01-01

67

Web Accessibility Knowledge and Skills for Non-Web Library Staff  

ERIC Educational Resources Information Center

Why do librarians and library staff other than Web librarians and developers need to know about accessibility? Web services staff do not--or should not--operate in isolation from the rest of the library staff. It is important to consider what areas of online accessibility are applicable to other areas of library work and to colleagues' regular job…

McHale, Nina

2012-01-01

68

Performance Comparison of Middleware Architectures for Generating Dynamic Web Content  

Microsoft Academic Search

On-line services are making increasing use of dynamically generated Web content. Serving dynamic content is more complex than serving static content. Besides a Web server, it typically involves a server-side application and a database to generate and store the dynamic content. A number of standard mechanisms have evolved to generate dynamic content. We evaluate three specific mechanisms in common use:

Emmanuel Cecchet; Anupam Chanda; Sameh Elnikety; Julie Marguerite; Willy Zwaenepoel

2003-01-01

69

NCI DTP - Discovery Services - Web-Accessible Data and Tools  

Cancer.gov

Discovery Services Home Discovery Development Pathways Grants/Contracts Books/Publications Site Search Data Search What's New Web-Accessible Data and Tools Downloadable Data Molecular Targets Data Search by chemical names, NSC numbers, structures, etc. COMPARE

70

Access to ADS Catalogs Through the World Wide Web  

NASA Astrophysics Data System (ADS)

A catalog access tool was developed that allows access to the Astrophysics Data System's (ADS) catalogs through the World Wide Web (WWW) and its interfaces (e.g., XMosaic, Lynx, Chimera). This allows catalog access from character based terminals with an easy to use interface (e.g., via Lynx, see figure) as well as through a graphical user interface (e.g., XMosaic). The access address is: http://adswww.harvard.edu/catalog_service.html.

Eichhorn, G.; Grant, C. S.; Kurtz, M. J.

1994-05-01

71

Medical Portals: Web-based Access to Medical Information  

Microsoft Academic Search

Public portals, such as Web search engines, have been available for a number of years and corporate portals that facilitate access to enterprise information within a company, normally through the Web, have been available for the last few years. Such portals are made up of \\

Michael A. Shepherd; David Zitner; Carolyn R. Watters

2000-01-01

72

Web Accessibility and the Law: Recommendations for Implementation.  

ERIC Educational Resources Information Center

Discussion of access to electronic resources and library services via Web sites focuses on accessibility barriers to the disabled that have created a digital divide. Topics include legal requirements, including Section 504 of the Rehabilitation Act of 1973 and the Americans with Disabilities Act; barriers to implementation; and implementation…

Yu, Holly

2002-01-01

73

Web Access and the Law: A Public Policy Framework.  

ERIC Educational Resources Information Center

Details the public policy framework that establishes the legal foundation for requiring access to Web-based information resources for people with disabilities. Highlights include fair use doctrine in regards to disability access to digital information; American with Disabilities Act; and Sections 504 and 508 of the Rehabilitation Act. (Author/LRW)

Noble, Steve

2002-01-01

74

A Web-Based Remote Access Laboratory Using SCADA  

ERIC Educational Resources Information Center

The Internet provides an opportunity for students to access laboratories from outside the campus. This paper presents a Web-based remote access real-time laboratory using SCADA (supervisory control and data acquisition) control. The control of an induction motor is used as an example to demonstrate the effectiveness of this remote laboratory,…

Aydogmus, Z.; Aydogmus, O.

2009-01-01

75

CEBus Network Access via the World-Wide-Web  

Microsoft Academic Search

Several methods of providing access to CEBus networks using the World Wide Web are described. Details of a working demonstration system are given. The system software incorporates CGI-Bin scripts and Java applets to support remote access to CEBus networks. To illustrate the potential of this technology an application to allow remote trouble-shooting and fault diagnosis on a CEBus network is

Peter M. Corcoran; J. Desbonnet; Karl Lusted

1996-01-01

76

Design of an Automatic Annotation Framework for Corporate Web Content  

Microsoft Academic Search

The semantic Web envisioned by Tim Berners Lee garnered much excitement from the research community due to its huge potential in enabling machine-readable Web contents. Studies have shown that using semantic Web technologies, such as the resources description framework (RDF), not only effectively add meaning to content but also increase the relevancy of search results. This paper investigates the efficient

Danny Chiang Choon Poo; Isaac K. C. Tan

2004-01-01

77

Accessibility compliance rates of consumer-oriented Canadian health care Web sites.  

PubMed

Vast amounts of consumer-based health care information are widely available on the World Wide Web. However, for some this material is inaccessible due to reliance on specialized computer equipment or software known as assistive technology. These tools, designed for people with sensory, physical, or learning disabilities, act as a median to interpret Web pages in accessible ways. Unfortunately, many websites, including those with health-related content are not designed to accommodate this equipment. No research has yet been published examining the extent of this problem in Canadian consumer-oriented health care sites. The purpose of this study was to investigate the percentage of accessible consumer-based health care websites of Canadian origin. A listing of such sites was randomly sampled for study inclusion. Each was assessed for accessibility based on the World Wide Web Consortium (W3C) Web Accessibility Initiative (WAI) Web Content Accessibility Guidelines (WCAG) 1.0 using the validation software Bobby. The results indicated that only about 40% of pages investigated were free of errors in accordance with WCAG 1.0 Priority 1 level. Websites should be constructed in compliance with these standards to better accommodate those using assistive devices. PMID:16531355

O'Grady, Laura

2005-12-01

78

Web-Enabled Systems for Student Access.  

ERIC Educational Resources Information Center

California State University, Fullerton is developing a suite of server-based, Web-enabled applications that distribute the functionality of its student information system software to external customers without modifying the mainframe applications or databases. The cost-effective, secure, and rapidly deployable business solution involves using the…

Harris, Chad S.; Herring, Tom

1999-01-01

79

SIDECACHE: Information access, management and dissemination framework for web services  

PubMed Central

Background Many bioinformatics algorithms and data sets are deployed using web services so that the results can be explored via the Internet and easily integrated into other tools and services. These services often include data from other sites that is accessed either dynamically or through file downloads. Developers of these services face several problems because of the dynamic nature of the information from the upstream services. Many publicly available repositories of bioinformatics data frequently update their information. When such an update occurs, the developers of the downstream service may also need to update. For file downloads, this process is typically performed manually followed by web service restart. Requests for information obtained by dynamic access of upstream sources is sometimes subject to rate restrictions. Findings SideCache provides a framework for deploying web services that integrate information extracted from other databases and from web sources that are periodically updated. This situation occurs frequently in biotechnology where new information is being continuously generated and the latest information is important. SideCache provides several types of services including proxy access and rate control, local caching, and automatic web service updating. Conclusions We have used the SideCache framework to automate the deployment and updating of a number of bioinformatics web services and tools that extract information from remote primary sources such as NCBI, NCIBI, and Ensembl. The SideCache framework also has been used to share research results through the use of a SideCache derived web service.

2011-01-01

80

Unifying Access to National Hydrologic Data Repositories via Web Services  

NASA Astrophysics Data System (ADS)

The CUAHSI hydrologic information system (HIS) is designed to be a live, multiscale web portal system for accessing, querying, visualizing, and publishing distributed hydrologic observation data and models for any location or region in the United States. The HIS design follows the principles of open service oriented architecture, i.e. system components are represented as web services with well defined standard service APIs. WaterOneFlow web services are the main component of the design. The currently available services have been completely re-written compared to the previous version, and provide programmatic access to USGS NWIS. (steam flow, groundwater and water quality repositories), DAYMET daily observations, NASA MODIS, and Unidata NAM streams, with several additional web service wrappers being added (EPA STORET, NCDC and others.). Different repositories of hydrologic data use different vocabularies, and support different types of query access. Resolving semantic and structural heterogeneities across different hydrologic observation archives and distilling a generic set of service signatures is one of the main scalability challenges in this project, and a requirement in our web service design. To accomplish the uniformity of the web services API, data repositories are modeled following the CUAHSI Observation Data Model. The web service responses are document-based, and use an XML schema to express the semantics in a standard format. Access to station metadata is provided via web service methods, GetSites, GetSiteInfo and GetVariableInfo. The methdods form the foundation of CUAHSI HIS discovery interface and may execute over locally-stored metadata or request the information from remote repositories directly. Observation values are retrieved via a generic GetValues method which is executed against national data repositories. The service is implemented in ASP.Net, and other providers are implementing WaterOneFlow services in java. Reference implementation of WaterOneFlow web services is available. More information about the ongoing development of CUAHSI HIS is available from http://www.cuahsi.org/his/.

Valentine, D. W.; Jennings, B.; Zaslavsky, I.; Maidment, D. R.

2006-12-01

81

Make That to Go: Re-Engineering a Web Portal for Mobile Access  

ERIC Educational Resources Information Center

The fact that people now live in a world of abundant portable electronic devices is important to any organization that maintains a web presence, including libraries. No longer tied to a desktop, the patrons' netbooks, tablets, ebook readers, and, of course, cellphones all become potential tools for remote access to library content. About a year…

Spitzer, Stephan

2012-01-01

82

Total Access: Making College Web Sites Accessible to Students with Disabilities  

ERIC Educational Resources Information Center

Colleges increasingly rely on the Web to attract, inform, and interact with students. This makes Web site accessibility and usability critical concerns, particularly for public community colleges, which educate sizable numbers of students with disabilities. As committed providers of postsecondary education to students with disabilities and thus a…

Bruyere, Susanne

2008-01-01

83

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

84

Implementing a Web-Accessible Database.  

ERIC Educational Resources Information Center

Discusses the development and implementation of the United Kingdom's National Internet Accessibility Database (NIAD), how the design of the database was based on ease of use by both its target audience in higher education and those working on the database, and the approaches taken to ensure the successful implementation of the NIAD. (Author/LRW)

Draffan, E. A. B.; Corbett, Robbie

2001-01-01

85

Customer Relationship Management for the Web-Access Challenged: Inaccessibility of the Fortune 100 Business Web Sites  

Microsoft Academic Search

Companies employ the World Wide Web (Web) to gather and disseminate information to and from actual and potential customers and increasingly for end- consumer business transactions through Electronic Commerce (EC). Online barriers limit or eliminate Web accessibility for many potential customers with access challenges. It is difficult to establish, develop and manage relationships with potential customers if they cannot access

2002-01-01

86

Accessing Streamflow Data via the Worldwide Web  

NSDL National Science Digital Library

This is a computer-based activity in which students retrieve data from websites maintained by the US Geological Survey (USGS) and the National Weather Service (NWS), and then use that data to test different hypotheses regarding streamflow and precipitation. Students import data from web sites into a spreadsheet program where they can construct scatter plots and perform simple statistical tests. The activity has two components, the first focusing on relations between streamflow and drainage basin characteristics (drainage area, slope, precipitation), the second focusing on trends in annual precipitation at two locations in the USA: Burlington, VT, and Boulder, CO. As part of the second component, students conduct a statistical test to determine if the long-term trends in precipitation are significant.

Pitlick, John

87

TECHNOLOGY CONTENT ANALYSIS OF THE FORTUNE 500 CORPORATE WEB SITES  

Microsoft Academic Search

This paper presents the findings of a technology content analysis of the Fortune 500 corporate Web sites, which addressed three research questions: (a) What Internet\\/Web technologies do the Fortune 500 companies use most or least on their Web sites? (b) What are their objectives of using the technologies? And (c) how efficiently and effectively do the companies use the technologies

Jensen J. Zhao

88

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

89

An extended XACML model to ensure secure information access for web services  

Microsoft Academic Search

More and more software systems based on web services have been developed. Web service development techniques are thus becoming crucial. To ensure secure information access, access control should be taken into consideration when developing web services. This paper proposes an extended XACML model named EXACML to ensure secure information access for web services. It is based on the technique of

Shih-chien Chou; Chun-hao Huang

2010-01-01

90

Access Control of Web- and Java-Based Applications  

NASA Technical Reports Server (NTRS)

Cybersecurity has become a great concern as threats of service interruption, unauthorized access, stealing and altering of information, and spreading of viruses have become more prevalent and serious. Application layer access control of applications is a critical component in the overall security solution that also includes encryption, firewalls, virtual private networks, antivirus, and intrusion detection. An access control solution, based on an open-source access manager augmented with custom software components, was developed to provide protection to both Web-based and Javabased client and server applications. The DISA Security Service (DISA-SS) provides common access control capabilities for AMMOS software applications through a set of application programming interfaces (APIs) and network- accessible security services for authentication, single sign-on, authorization checking, and authorization policy management. The OpenAM access management technology designed for Web applications can be extended to meet the needs of Java thick clients and stand alone servers that are commonly used in the JPL AMMOS environment. The DISA-SS reusable components have greatly reduced the effort for each AMMOS subsystem to develop its own access control strategy. The novelty of this work is that it leverages an open-source access management product that was designed for Webbased applications to provide access control for Java thick clients and Java standalone servers. Thick clients and standalone servers are still commonly used in businesses and government, especially for applications that require rich graphical user interfaces and high-performance visualization that cannot be met by thin clients running on Web browsers

Tso, Kam S.; Pajevski, Michael J.

2013-01-01

91

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

92

Web-based Access to Locally Developed Databases.  

ERIC Educational Resources Information Center

Describes the Web-based technologies employed by the Grainger Engineering Library Information Center at the University of Illinois, Urbana-Champaign in implementing access to local information resources. Discusses Microsoft Active Server Pages (ASP) technologies and the associated local database structure and format, as well as the general…

Mischo, William H.; Schlembach, Mary C.

1999-01-01

93

Automated Evaluation of Web Usability and Accessibility by Guideline Review  

Microsoft Academic Search

A novel approach is presented for automatically evaluating of the us- ability and accessibility (U&A) of web sites by performing a static analysis of their HTML code against U&A guidelines. The approach relies on separating guidelines evaluation logic from the evaluation engine. Due to this separation, the whole evaluation process can be divided into two main phases: specifying formal guidelines

Jean Vanderdonckt; Abdo Beirekdar; Monique Noirhomme-fraiture

2004-01-01

94

Web Accessibility Policies and Practices at American Community Colleges  

ERIC Educational Resources Information Center

Community colleges are increasingly using the Internet for admissions and financial aid applications. The use of online processes has serious implications for students with disabilities, such as visual and learning problems, who may encounter difficulties with the Web sites if they are not designed in an accessible and usable way. A survey of…

Erickson, William; Trerise, Sharon; VanLooy, Sara; Lee, Camille; Bruyere, Susanne

2009-01-01

95

Restricted Access to Exam Grades on the Web by HIP  

Microsoft Academic Search

Virtual learning is a new idea that has attained a new form with the emergence of new technologies such as the Internet. One of the issues in the field of E-learning is the way of announcing exams' grades. In this paper, a new method is introduced for restricting public access to exams' grades on the web by using a new

Sajad Shirali-shahreza; Mohammad Shirali-shahreza; Ali Movaghar

2007-01-01

96

Strategies for Content Migration on the World Wide Web.  

ERIC Educational Resources Information Center

Tracks the development of the World Wide Web as a distributed platform; states three main standards that define the platform: Uniform Resource Locator (URL), HyperText Transfer Protocol (HTTP), and HyperText Markup Language (HTML). Highlights the potential to employ content migration. Argues that content on the Web should be free to migrate…

Evans, M. P.; Phippen, A. D.; Mueller, G.; Furnell, S. M.; Sanders, P. W.; Reynolds, P. L.

1999-01-01

97

How Accessible Are Public Libraries' Web Sites? A Study of Georgia Public Libraries  

ERIC Educational Resources Information Center

One issue that public librarians must consider when planning Web site design is accessibility for patrons with disabilities. This article reports a study of Web site accessibility of public libraries in Georgia. The focus of the report is whether public libraries use accessible guidelines and standards in making their Web sites accessible. An…

Ingle, Emma; Green, Ravonne A.; Huprich, Julia

2009-01-01

98

Data Vault: providing simple web access to NRAO data archives  

NASA Astrophysics Data System (ADS)

In late 2007, the National Radio Astronomy Observatory (NRAO) launched Data Vault, a feature-rich web application for simplified access to NRAO data archives. This application allows users to submit a Google-like free-text search, and browse, download, and view further information on matching telescope data. Data Vault uses the model-view-controller design pattern with web.py, a minimalist open-source web framework built with the Python Programming Language. Data Vault implements an Ajax client built on the Google Web Toolkit (GWT), which creates structured JavaScript applications. This application supports plug-ins for linking data to additional web tools and services, including Google Sky. NRAO sought the inspiration of Google's remarkably elegant user interface and notable performance to create a modern search tool for the NRAO science data archive, taking advantage of the rapid development frameworks of web.py and GWT to create a web application on a short timeline, while providing modular, easily maintainable code. Data Vault provides users with a NRAO-focused data archive while linking to and providing more information wherever possible. Free-text search capabilities are possible (and even simple) with an innovative query parser. NRAO develops all software under an open-source license; Data Vault is available to developers and users alike.

DuPlain, Ron; Benson, John; Sessoms, Eric

2008-08-01

99

YouServ: a web-hosting and content sharing tool for the masses  

Microsoft Academic Search

YouServ is a system that allows its users to pool existing desktop computing resources for high availability web hosting and file sharing. By exploiting standard web and internet protocols (e.g. HTTP and DNS), YouServ does not require those who access YouServ-published content to install special purpose software. Because it requires minimal server-side resources and administration, YouServ can be provided at

Roberto J. Bayardo Jr.; Rakesh Agrawal; Daniel Gruhl; Amit Somani

2002-01-01

100

XML Content Finally Arrives on the Web!  

ERIC Educational Resources Information Center

Explains extensible markup language (XML) and how it differs from hypertext markup language (HTML) and standard generalized markup language (SGML). Highlights include features of XML, including better formatting of documents, better searching capabilities, multiple uses for hyperlinking, and an increase in Web applications; Web browsers; and what…

Funke, Susan

1998-01-01

101

Framework for mining web content outliers  

Microsoft Academic Search

Outliers are data objects with different characteristics compared to other data objects. Exploring the diverse and dynamic web data for outliers is more interesting than finding outliers in numeric data sets. Interestingly, the existing web mining algorithms have concentrated on finding patterns that are frequent while discarding the less frequent ones that are likely to contain the outlying data. This

Malik Agyemang; Ken Barker; Reda Alhajj

2004-01-01

102

Accessibility  

Cancer.gov

The NCI Center for Cancer Research (CCR) wants the information on this Web site to be accessible to all. If you use special adaptive equipment to access the Web and encounter problems when using our site, please let us know.

103

Secure, web-accessible call rosters for academic radiology departments.  

PubMed

Traditionally, radiology department call rosters have been posted via paper and bulletin boards. Frequently, changes to these lists are made by multiple people independently, but often not synchronized, resulting in confusion among the house staff and technical staff as to who is on call and when. In addition, multiple and disparate copies exist in different sections of the department, and changes made would not be propagated to all the schedules. To eliminate such difficulties, a paperless call scheduling application was developed. Our call scheduling program allowed Java-enabled web access to a database by designated personnel from each radiology section who have privileges to make the necessary changes. Once a person made a change, everyone accessing the database would see the modification. This eliminates the chaos resulting from people swapping shifts at the last minute and not having the time to record or broadcast the change. Furthermore, all changes to the database were logged. Users are given a log-in name and password and can only edit their section; however, all personnel have access to all sections' schedules. Our applet was written in Java 2 using the latest technology in database access. We access our Interbase database through the DataExpress and DB Swing (Borland, Scotts Valley, CA) components. The result is secure access to the call rosters via the web. There are many advantages to the web-enabled access, mainly the ability for people to make changes and have the changes recorded and propagated in a single virtual location and available to all who need to know. PMID:10847414

Nguyen, A V; Tellis, W M; Avrin, D E

2000-05-01

104

Web Services Provide Access to SCEC Scientific Research Application Software  

NASA Astrophysics Data System (ADS)

Web services offer scientific communities a new paradigm for sharing research codes and communicating results. While there are formal technical definitions of what constitutes a web service, for a user community such as the Southern California Earthquake Center (SCEC), we may conceptually consider a web service to be functionality provided on-demand by an application which is run on a remote computer located elsewhere on the Internet. The value of a web service is that it can (1) run a scientific code without the user needing to install and learn the intricacies of running the code; (2) provide the technical framework which allows a user's computer to talk to the remote computer which performs the service; (3) provide the computational resources to run the code; and (4) bundle several analysis steps and provide the end results in digital or (post-processed) graphical form. Within an NSF-sponsored ITR project coordinated by SCEC, we are constructing web services using architectural protocols and programming languages (e.g., Java). However, because the SCEC community has a rich pool of scientific research software (written in traditional languages such as C and FORTRAN), we also emphasize making existing scientific codes available by constructing web service frameworks which wrap around and directly run these codes. In doing so we attempt to broaden community usage of these codes. Web service wrapping of a scientific code can be done using a "web servlet" construction or by using a SOAP/WSDL-based framework. This latter approach is widely adopted in IT circles although it is subject to rapid evolution. Our wrapping framework attempts to "honor" the original codes with as little modification as is possible. For versatility we identify three methods of user access: (A) a web-based GUI (written in HTML and/or Java applets); (B) a Linux/OSX/UNIX command line "initiator" utility (shell-scriptable); and (C) direct access from within any Java application (and with the correct API interface from within C++ and/or C/Fortran). This poster presentation will provide descriptions of the following selected web services and their origin as scientific application codes: 3D community velocity models for Southern California, geocoordinate conversions (latitude/longitude to UTM), execution of GMT graphical scripts, data format conversions (Gocad to Matlab format), and implementation of Seismic Hazard Analysis application programs that calculate hazard curve and hazard map data sets.

Gupta, N.; Gupta, V.; Okaya, D.; Kamb, L.; Maechling, P.

2003-12-01

105

22 CFR 502.6 - Terms of use for accessing program materials available on agency Web sites.  

...for accessing program materials available on agency Web sites. 502.6 Section 502.6 Foreign Relations...accessing program materials available on agency Web sites. (a) By accessing Agency Web sites, Requestors agree to all the Terms of...

2014-04-01

106

Access Issues in Web Page Design: Easy Steps to Improved Design.  

ERIC Educational Resources Information Center

Presents tips on how to create instructional Web sites with accessibility in mind and how to easily check existing sites for accessibility, based on a study of inaccessible Web-based components at the University of Illinois at Urbana-Champaign. Provides a list of Web sites focusing on accessibility. (AEF)

Hinn, D. Michelle

1999-01-01

107

W ormhole Caching with HTTP PUSH Method for a Satellite-Based Web Content Multicast and Replication System  

Microsoft Academic Search

A two-tier Web caching and replication system, called the INTELSAT Internet Delivery System (IDS) is discussed. Based on a Wa rehouse-Kiosk paradigm, IDS provides global access and Internet wormholes via a fleet of INTELSAT satellites, the largest commercial satellite communications system in the world. Web content such as cacheable HTTP, FTP and streaming objects are fetched o r pushed both

Hua Chen; Marc Abrams; Tommy Johnson

1999-01-01

108

Web Based Data Access to the World Data Center for Climate  

NASA Astrophysics Data System (ADS)

The World Data Center for Climate (WDC-Climate, www.wdc-climate.de) is hosted by the Model &Data Group (M&D) of the Max Planck Institute for Meteorology. The M&D department is financed by the German government and uses the computers and mass storage facilities of the German Climate Computing Centre (Deutsches Klimarechenzentrum, DKRZ). The WDC-Climate provides web access to 200 Terabytes of climate data; the total mass storage archive contains nearly 4 Petabytes. Although the majority of the datasets concern model output data, some satellite and observational data are accessible as well. The underlying relational database is distributed on five servers. The CERA relational data model is used to integrate catalogue data and mass data. The flexibility of the model allows to store and access very different types of data and metadata. The CERA metadata catalogue provides easy access to the content of the CERA database as well as to other data in the web. Visit ceramodel.wdc-climate.de for additional information on the CERA data model. The majority of the users access data via the CERA metadata catalogue, which is open without registration. However, prior to retrieving data user are required to check in and apply for a userid and password. The CERA metadata catalogue is servlet based. So it is accessible worldwide through any web browser at cera.wdc-climate.de. In addition to data and metadata access by the web catalogue, WDC-Climate offers a number of other forms of web based data access. All metadata are available via http request as xml files in various metadata formats (ISO, DC, etc., see wini.wdc-climate.de) which allows for easy data interchange with other catalogues. Model data can be retrieved in GRIB, ASCII, NetCDF, and binary (IEEE) format. WDC-Climate serves as data centre for various projects. Since xml files are accessible by http, the integration of data into applications of different projects is very easy. Projects supported by WDC-Climate are e.g. CEOP, IPCC, and CARIBIC. A script tool for data download (jblob) is offered on the web page, to make retrieval of huge data quantities more comfortable.

Toussaint, F.; Lautenschlager, M.

2006-12-01

109

Role templates for content-based access control  

Microsoft Academic Search

This paper proposes a role-based access control model that provides special mechanisms for the definition of content-based access control policies. More precisely, this model defines the concept of parameterized privilege to restrict the access on subsets of objects, and the concept of role template to support composition and encapsulation of parameterized privileges.

Luigi Giuri; Pietro Iglio

1997-01-01

110

The Effects of Implementing Web Accessibility Standards on the Success of Secondary Adolescents  

ERIC Educational Resources Information Center

Web accessibility has become a paramount concern in providing equal access to audiences of all abilities. Unless web accessibility is supported and employed, the internet does not deliver worldwide access as it was intended. This study engaged 60 students in a secondary school setting in order to identify the navigational effectiveness and…

Savi, Christine Opitz; Savenye, Wilhelmina; Rowland, Cynthia

2008-01-01

111

Preservice Mathematics Teachers' Views on Distance Education and Their Web Pedagogical Content Knowledge  

ERIC Educational Resources Information Center

This research aims to investigate primary preservice mathematics teachers' views on distance education and web pedagogical content knowledge in terms of the subscales of general web, communicative web, pedagogical web, web pedagogical content and attitude towards web based instruction. The research was conducted with 46 senior students in the…

Cagirgan Gulten, Dilek

2013-01-01

112

Growing and navigating the small world Web by local content  

PubMed Central

Can we model the scale-free distribution of Web hypertext degree under realistic assumptions about the behavior of page authors? Can a Web crawler efficiently locate an unknown relevant page? These questions are receiving much attention due to their potential impact for understanding the structure of the Web and for building better search engines. Here I investigate the connection between the linkage and content topology of Web pages. The relationship between a text-induced distance metric and a link-based neighborhood probability distribution displays a phase transition between a region where linkage is not determined by content and one where linkage decays according to a power law. This relationship is used to propose a Web growth model that is shown to accurately predict the distribution of Web page degree, based on textual content and assuming only local knowledge of degree for existing pages. A qualitatively similar phase transition is found between linkage and semantic distance, with an exponential decay tail. Both relationships suggest that efficient paths can be discovered by decentralized Web navigation algorithms based on textual and/or categorical cues.

Menczer, Filippo

2002-01-01

113

WebAlchemist: a Web transcoding system for mobile Web access in handheld devices  

NASA Astrophysics Data System (ADS)

In this paper, we describe the design and implementation of WebAlchemist, a prototype web transcoding system, which automatically converts a given HTML page into a sequence of equivalent HTML pages that can be properly displayed on a hand-held device. The Web/Alchemist system is based on a set of HTML transcoding heuristics managed by the Transcoding Manager (TM) module. In order to tackle difficult-to-transcode pages such as ones with large or complex table structures, we have developed several new transcoding heuristics that extract partial semantics from syntactic information such as the table width, font size and cascading style sheet. Subjective evaluation results using popular HTML pages (such as the CNN home page) show that WebAlchemist generates readable, structure-preserving transcoded pages, which can be properly displayed on hand-held devices.

Whang, Yonghyun; Jung, Changwoo; Kim, Jihong; Chung, Sungkwon

2001-11-01

114

Enhancing Web accessibility via the Vox Portal and a Web-hosted dynamic HTMLVoxML converter  

Microsoft Academic Search

Interactive voice browsers offer an alternative paradigm that enables both sighted and visually impaired users to access the World Wide Web. In addition to the desktop PC, voice browsers afford ubiquitous mobile access to the World Wide Web using a wide range of consumer devices. This technology can facilitate a safe, `hands-free' browsing environment which is of importance both to

Stuart Goose; Mike Newman; Claus Schmidt; Laurent Hue

2000-01-01

115

A SAML\\/XACML Based Access Control between Portal and Web Services  

Microsoft Academic Search

Web-based portals have been increasingly used to integrate information from a variety of back-end Web services. In these systems, security is a critical feature. This paper presents a SAML\\/XACML based access control between portal and Web services to extend the authentication and authorization mechanism within a portal to external Web services.

Hao Yin; Jiliu Zhou; Huilin Wu; Liang Yu

2007-01-01

116

An Introduction to Web Accessibility, Web Standards, and Web Standards Makers  

ERIC Educational Resources Information Center

Librarians and libraries have long been committed to providing equitable access to information. In the past decade and a half, the growth of the Internet and the rapid increase in the number of online library resources and tools have added a new dimension to this core duty of the profession: ensuring accessibility of online resources to users with…

McHale, Nina

2011-01-01

117

A Temporal Description Logic Based Access Control Model for Expressing History Constrained Policies in Semantic Web  

Microsoft Academic Search

An access control model for semantic Web should be compatible with the corresponding semantic model. The access control procedure(s) should also take the semantic relationships between the entities (specified as ontologies) into account. Considering the benefits of logic-based models and the description logic foundation of semantic Web, in this paper, we propose an access control model based on a temporal

Fathieh Faghih; Morteza Amini; Rasool Jalili

2009-01-01

118

An Assessment of Web Accessibility Knowledge and Needs at Oregon Community Colleges  

ERIC Educational Resources Information Center

A needs assessment determined Oregon community college staff knowledge of (a) accessible information technology (IT) guidelines, (b) IT-related disability laws, (c) legal obligations regarding Web accessibility, and (d) perceived level of current Web accessibility. Training needs were assessed and training suggestions were solicited. IT staff…

Wisdom, Jenifer R.; White, Nathan A.; Goldsmith, Kimberley A.; Bielavitz, Sarann; Davis, Charles E.; Drum, Charles

2006-01-01

119

An Access Control System for Multimedia Content Distribution  

Microsoft Academic Search

Multimedia content distribution has appeared as a new growth mar- ket offered by network providers, defining resource access infra structures able to support both wired and wireless accesses. Although these infrastructures have been widely studied in the last years, the main aim of those works has been focu- sed more on the distribution process than on a suitable security infrastructu

Manuel Sánchez; Gabriel López; Óscar Cánovas Reverte; Juan A. Sánchez; Antonio F. Gómez-skarmeta

2006-01-01

120

Session Based Differentiated Quality of Service in Web Content Hosting  

Microsoft Academic Search

Due to increasing popularity of Internet some web sites cannot anymore ser ve every client all the time. Preparing for the peak hours can mean expensive inve stments, if no quality of service methods are used. In this study I combine two basic m ethods, content based quality of service and session based quality of service. The basic design guarantees

Jani Rautiainen

121

Poster: DIEGO: a fine-grained access control for web browsers  

Microsoft Academic Search

Modern web applications combine content from several sources (with varying security characteristics), and incorporate significant portion of user-supplied contents to enrich browsing experience. However, the de facto web protection model, the same-origin policy (SOP), has not adequately evolved to manage the security consequences of this additional complexity. As a result, making web applications subject to a broad sphere of attacks

Ashar Javed

2011-01-01

122

Web access to data in a mobile ECG monitoring system.  

PubMed

Cardiovascular diseases and, in particular, diseases related to arrhythmias are a problem that affects a significant percentage of the population, being one of the major causes of death in Europe. New advances in the fields of PDAs, mobile phones, wireless communications and vital parameter sensors have permitted the development of revolutionary medical monitoring systems, which strikingly improve the lifestyle of patients. However, not all those monitoring systems provide patients with real assistance - anywhere and at any time. We have developed a system that goes a step further than the previous approaches, being designed to capture, record and, as a distinctive feature, locally analyze the ECG signals in a PDA carried by the patient. In that sense, the system has a decision support module based on decision tree methods that can detect, with high precision, any arrhythmias that the user may be suffering. Alarms can then be activated in time to alert a medical center in order to provide the proper medical assistance. One of our aims when building the system has been to optimize limited and expensive resources like PDA memory size and wireless communication costs. Moreover, accessibility is also an important feature of the system that has been achieved by the development of web services to query the data computed in the PDA. In this way, authorized personnel (physicians and relatives) can easily obtain access to that data. PMID:15718599

Rodriguez, Jimena; Dranca, Lacramioara; Goñi, Alfredo; Illarramendi, Arantza

2004-01-01

123

Multidimensional Association Analysis of Web Users' Access Path for Website Design and Promotion  

Microsoft Academic Search

Data mining technology makes it possible to discover knowledge from daily operational data. As we know, Web log contains a lot of information about web users' behavior on the Website, for example, Web users' access path. Information discovered from those data will be very useful to website design and promotion. In this paper, we propose an analysis model by using

Jianyuan Yan; Li Zhang; Fang Zhao; Wenting Liu; Kai Li

2009-01-01

124

Using Clinical Questions to Structure the Content of a Web-based Information Resource for Primary Care Physicians  

PubMed Central

The Medical Home Portal is a web site aimed at supporting physicians and families in improving the care and outcomes for children with special health care needs (CSHCN) in the Medical Home model. To optimize access to its information and resources, the content has been structured using XML schemas that incorporate relevant clinical questions. This approach guides authors as they develop content and informs the organization of the site, aimed at assuring that users can readily locate needed information and resources. It will also enable direct access to relevant content via “infobuttons” or a questions-based interface, and extraction of content for use in electronic health records or other electronic media.

Norlin, Chuck; Kerr, Lynne M.; Rocha, Roberto A.

2009-01-01

125

Hera-FFX: a Firefox add-on for semi-automatic web accessibility evaluation  

Microsoft Academic Search

Website accessibility evaluation is a complex task requiring a combination of human expertise and software support. There are several online and offline tools to support the manual web accessibility evaluation process. However, they all have some weaknesses because none of them includes all the desired features. In this paper we present Hera-FFX, an add-on for the Firefox web browser that

José L. Fuertes; Ricardo González; Emmanuelle Gutiérrez Y Restrepo; Loïc Martínez

2009-01-01

126

Analysis and Characterization of Large-Scale Web Server Access Patterns and Performance  

Microsoft Academic Search

In this paper we develop a general methodology for characterizing the access patterns of Web server requests based on a time-series analysis of finite collections of observed data from real systems. Our approach is used together with the access logs from the IBM Web site for the Olympic Games to demonstrate some of its advantages over previous methods and to

Arun Iyengar; Mark S. Squillante; Li Zhang

1999-01-01

127

Performance Models of Web Caching and Prefetching for Wireless Internet Access  

Microsoft Academic Search

There is a fair amount of study reported on the performance of Web caching and prefetching for wired Internet access. In a related matter, statistical characteristics of Web traffic have been recently studied by a number of researchers. In a wireless network, the movement of mobile users presents a scenario of access to the Internet that is substantially different from

Hisashi Kobayashi; Shun-Zheng Yu

128

Texting and accessing the web while driving: Traffic citations and crashes among young adult drivers  

Microsoft Academic Search

Objective: We examined relations between young adult texting and accessing the web while driving with driving outcomes (viz., crashes and traffic citations). Our premise is that engaging in texting and accessing the web while driving is not only distracting, but that these activities represent a pattern of behavior that leads to an increase in unwanted outcomes, such as crashes and

Jerry L. Cook; Randall M. Jones

2011-01-01

129

Learning about web accessibility: A project based tool-mediated approach  

Microsoft Academic Search

Many websites remain inaccessible for people with disabilities, despite the availability of relevant guidelines and tools.\\u000a This is mainly due to lack of appropriate training of Web designers on accessibility technology. In this paper, a project\\u000a based learning activity designed to instruct Web accessibility guidelines and good design practices is presented. The activity\\u000a is mediated by a web-based learning environment,

Christos Katsanos; Nikolaos Tselios; Athanasios Tsakoumis; Nikolaos Avouris

130

Agent-Based Web Content Engagement Time (WCET) Analyzer on e-Publication System  

Microsoft Academic Search

This paper focuses on the adoption of Agent Technology to calculate and evaluate the Web Content Engagement Time (WCET). Traditional Web traffic analysis metrics such as pageviews, unique browser, visitor loyalty, etc have been used to analyze the Web traffic behaviour for a long time since the birth of World Wide Web, but the emersion of software robots and Web

Raymond S. T. Lee; James Nga-kwok Liu; Karo S. Y. Yeung; Alan H. L. Sin; Dennis T. F. Shum

2009-01-01

131

Utilizing Social Bookmarking Tag Space for Web Content Discovery: A Social Network Analysis Approach  

ERIC Educational Resources Information Center

Social bookmarking has gained popularity since the advent of Web 2.0. Keywords known as tags are created to annotate web content, and the resulting tag space composed of the tags, the resources, and the users arises as a new platform for web content discovery. Useful and interesting web resources can be located through searching and browsing based…

Wei, Wei

2010-01-01

132

Social accessibility: achieving accessibility through collaborative metadata authoring  

Microsoft Academic Search

Web content is under the control of site owners, and therefore the site owners have the responsibility to make their content accessible. This is a basic assumption of Web accessibility. Users who want access to inaccessible content must ask the site owners for help. However, the process is slow and too often the need is mooted before the content becomes

Hironobu Takagi; Shinya Kawanaka; Masatomo Kobayashi; Takashi Itoh; Chieko Asakawa

2008-01-01

133

Autonomic Provisioning of Backend Databases in Dynamic Content Web Servers  

Microsoft Academic Search

In autonomic provisioning, a resource manager allocates resources to an application, on-demand, e.g., during load spikes. Modelling-based approaches have proved very successful for provisioning the web and application server tiers in dynamic content servers. On the other hand, accurately modelling the behavior of the back-end database server tier is a daunting task. Hence, automated provisioning of database replicas has received

Jin Chen; Gokul Soundararajan; Cristiana Amza

2006-01-01

134

BioServices: a common Python package to access biological Web Services programmatically  

PubMed Central

Motivation: Web interfaces provide access to numerous biological databases. Many can be accessed to in a programmatic way thanks to Web Services. Building applications that combine several of them would benefit from a single framework. Results: BioServices is a comprehensive Python framework that provides programmatic access to major bioinformatics Web Services (e.g. KEGG, UniProt, BioModels, ChEMBLdb). Wrapping additional Web Services based either on Representational State Transfer or Simple Object Access Protocol/Web Services Description Language technologies is eased by the usage of object-oriented programming. Availability and implementation: BioServices releases and documentation are available at http://pypi.python.org/pypi/bioservices under a GPL-v3 license. Contact: cokelaer@ebi.ac.uk or bioservices@googlegroups.com Supplementary information: Supplementary data are available at Bioinformatics online.

Cokelaer, Thomas; Pultz, Dennis; Harder, Lea M.; Serra-Musach, Jordi; Saez-Rodriguez, Julio

2013-01-01

135

The Technology of Extracting Content Information from Web Page Based on DOM Tree  

NASA Astrophysics Data System (ADS)

There are huge amounts of information on Web pages, which includes content information and other useless information, such as navigation, advertisement and flash of animation etc. Reducing the toils of Web users, we estabished a thechnique to extract the content information from web page. Fristly, we analyzed the semantic of web documents by V8 engine of Google and parsed the web document into DOM tree. And then, traversed the DOM tree, pruned the DOM tree in the light of the characteristic of Web page's edit language. Finally, we extracted the content information from Web page. Theoretics and experiments showed that the technique could simplify the web page, present the content information to web users and supply clean data for applicable area, such as retrieval, KDD and DM from web.

Yuan, Dingrong; Mo, Zhuoying; Xie, Bing; Xie, Yangcai

136

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

137

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.

138

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

139

Building Internet accessible medical education software using the World Wide Web.  

PubMed Central

We describe work to enhance existing software protocols and develop a suite of new software utilities based upon a set of standards known as the World Wide Web (WWW). Specifically, we have developed an effective X-windows based WYSIWYG WWW browser/editor and a prototype for integrated wide-area authentication and authorization support for delivery and maintenance of WWW service. These software development activities, along with parallel work in content development, are empowering individuals to better use the Internet as a resource to easily author, publish, and access materials. As an illustrative application, we describe one Web-based self-instructional unit designed to increase users' knowledge of hazardous substances in the environment. This on-line monograph was adapted from a series of paper-based case studies developed by the Agency for Toxic Substances and Disease Registry of the U.S. Department of Health & Human Services. The on-line version illustrates many of the innovative features provided by the Web, and demonstrates how such materials can significantly impact medical education at all levels.

Kruper, J. A.; Lavenant, M. G.; Maskay, M. H.; Jones, T. M.

1994-01-01

140

Situational requirements engineering for the development of Content Management System-based web applications  

Microsoft Academic Search

Web applications are evolving towards strong content-centered Web applications. The development processes and implementation of these applications are unlike the development and implementation of traditional information systems. In this paper we propose WebEngineering Method; a method for developing content management system (CMS) based Web applications. Critical to a successful development of CMS-based Web applications, is the adaptation to the dynamic

Jurriaan Souer; Inge Van De Weerd; Johan Versendaal; Sjaak Brinkkemper

2007-01-01

141

Web 2.0: blind to an accessible new world  

Microsoft Academic Search

With the advent of Web 2.0 technologies, websites have evolved from static pages to dynamic, interactive Web-based applications with the ability to replicate common desktop functionality. However, for blind and visually impaired individuals who rely upon screen readers, Web 2.0 applications force them to adapt to an inaccessible use model. Many technologies, including WAI- ARIA, AJAX, and improved screen reader

Joshua M. Hailpern; Loretta Guarino Reid; Richard Boardman; Srinivas Annam

2009-01-01

142

Structural and Multilingual Approaches to Subject Access on the Web.  

ERIC Educational Resources Information Center

This paper presents some of the efforts currently being made to develop mechanisms that can organize World Wide Web resources for efficient and effective retrieval, as well as programs that can accommodate multiple languages. Part 1 discusses structural approaches to organizing Web resources, including the use of hierarchical or…

Chan, Lois Mai; Lin, Xia; Zeng, Marcia

143

Selective Markov models for predicting Web page accesses  

Microsoft Academic Search

The problem of predicting a user's behavior on a Web site has gained importance due to the rapid growth of the World Wide Web and the need to personalize and influence a user's browsing experience. Markov models and their variations have been found to be well suited for addressing this problem. Of the different variations of Markov models, it is

Mukund Deshpande; George Karypis

2004-01-01

144

DOD Controls Over Information Placed on Publicly Accessible Web Sites Require Better Execution.  

National Technical Information Service (NTIS)

In a September 25, 2008, memorandum to the DOD Office of the Inspector General, the then Deputy Secretary of Defense (DEPSECDEF), outlined his concerns that, 'sensitive information frequently can still be found on publicly accessible Web sites.' To addres...

2010-01-01

145

Using Web-based Legal Decision Support Systems to Improve Access to Justice  

Microsoft Academic Search

There are an increasing number of litigants who are forced to represent themselves in court. This causes havoc in the judicial system and raises issues of access to justice. We believe that important support for unrepresented litigants can be provided by the construction of web-based legal decision support systems. We discuss tools we have constructed for building web-based legal decision

John Zeleznikow

2002-01-01

146

Web-Based Online Public Access Catalogues of IIT Libraries in India: An Evaluative Study  

ERIC Educational Resources Information Center

Purpose: The purpose of the paper is to examine the various features and components of web-based online public access catalogues (OPACs) of IIT libraries in India with the help of a specially designed evaluation checklist. Design/methodology/approach: The various features of the web-based OPACs in six IIT libraries (IIT Delhi, IIT Bombay, IIT…

Madhusudhan, Margam; Aggarwal, Shalini

2011-01-01

147

The Internet as a Reference Tool: Accessing Scientific and Technical Information via the World Wide Web.  

ERIC Educational Resources Information Center

Los Alamos National Laboratory's Research Library has developed a World Wide Web (WWW) page to allow laboratory staff, as well as individuals from around the world, access to information via the Internet. While many Web pages offer information solely on the organization, the Los Alamos National Laboratory page provides links to reference materials…

Mosier, Mona L.

148

The Live Access Server - A Web-Services Framework for Earth Science Data  

Microsoft Academic Search

The Live Access Server (LAS) is a general purpose Web-server for delivering services related to geo-science data sets. Data providers can use the LAS architecture to build custom Web interfaces to their scientific data. Users and client programs can then access the LAS site to search the provider's on-line data holdings, make plots of data, create sub-sets in a variety

R. Schweitzer; S. C. Hankin; J. S. Callahan; K. O'Brien; A. Manke; X. Y. Wang

2005-01-01

149

Discovering Web Access Patterns and Trends by Applying OLAP and Data Mining Technology on Web Logs  

Microsoft Academic Search

As a confluence of data mining and WWW technologies,it is now possible to perform data mining onweb log records collected from the Internet web pageaccess history. The behaviour of the web page readersis imprinted in the web server log files. Analyzingand exploring regularities in this behaviour can improvesystem performance, enhance the quality and deliveryof Internet information services to the end

Osmar R. Zaïane; Man Xin; Jiawei Han

1998-01-01

150

Optimizing content freshness of relations extracted from the web using keyword search  

Microsoft Academic Search

An increasing number of applications operate on data obtained from the Web. These applications typically maintain local copies of the web data to avoid network latency in data accesses. As the data on the Web evolves, it is critical that the local copy be kept up-to-date. Data freshness is one of the most important data quality issues, and has been

Mohan Yang; Haixun Wang; Lipyeow Lim; Min Wang

2010-01-01

151

The Technology of Extracting Content Information from Web Page Based on DOM Tree  

Microsoft Academic Search

\\u000a There are huge amounts of information on Web pages, which includes content information and other useless information, such\\u000a as navigation, advertisement and flash of animation etc. Reducing the toils of Web users, we estabished a thechnique to extract\\u000a the content information from web page. Fristly, we analyzed the semantic of web documents by V8 engine of Google and parsed\\u000a the

Dingrong Yuan; Zhuoying Mo; Bing Xie; Yangcai Xie

2011-01-01

152

Flexible Reporting for Automated Usability and Accessibility Evaluation of Web Sites  

Microsoft Academic Search

A system for automatically evaluating the usability and accessibility of web sites by checking their HTML code against guidelines has been devel- oped. All usability and accessibility guidelines are formally expressed in a XML-compliant specification language called Guideline Definition Language (GDL) so as to separate the evaluation engine from the evaluation logics (the guidelines). This separation enables managing guidelines (i.e.,

Abdo Beirekdar; Marc Keita; Monique Noirhomme-fraiture; Frédéric Randolet; Jean Vanderdonckt; Céline Mariage

2005-01-01

153

Using Bluestem for Web User Authentication and Access Control of Library Resources.  

ERIC Educational Resources Information Center

Describes the security issues Bluestem, a Web authentication and access control system under development at the University of Illinois at Urbana-Champaign, is designed to resolve. Provides an overview of how Bluestem works and details how Bluestem is currently being used to control end-user access to bibliographic resources licensed by the…

Cole, Timothy W.

1997-01-01

154

76 FR 71914 - Nondiscrimination on the Basis of Disability in Air Travel: Accessibility of Web Sites and...  

Federal Register 2010, 2011, 2012, 2013

...Disability in Air Travel: Accessibility of Web Sites and Automated Kiosks at U.S. Airports...rulemaking (SNPRM) on the accessibility of Web sites and automated kiosks that was published...comment form on the www.regulations.gov Web site. The Department acknowledges...

2011-11-21

155

A decade of dynamic web content: A structured survey on past and present practices and future trends  

Microsoft Academic Search

The shift from static to dynamic Web content has been dramatic. Dynamic Web content is facilitated by specialized cooperating component systems better known as content middlewares. Unlike static content, the generation and delivery of dynamic Web content introduce heavy a workload on content middlewares. To address this problem, numerous research approaches have been proposed in the literature, some of which

Stavros Papastavrou; George Samaras; Paraskevas Evripidou; Panos K. Chrysanthis

2006-01-01

156

Web Access to Electronic Journals and Databases in ARL Libraries  

ERIC Educational Resources Information Center

Libraries are investing heavily in an increasing number of electronic journals and providing access to them through their websites. We set out to determine if ARL academic libraries offer the same options on their websites to access electronic journals and databases. Using a checklist, we evaluated the websites for the presence of A-Z lists, links…

Caudle, Dana M.; Schmitz, Cecilia M.

2007-01-01

157

Web Host Access Tool: A Support Vector Machine Approach  

Microsoft Academic Search

Search engines are an integral part of web information gathering and retrieval process, but they are significantly dependent upon the words or word phrases input by the end user. The search engine usually contributes no additional semantic data toward the information acquisition process. This paper presents an intelligent search agent \\

Satarupa Banerjee; Lillian N. Cassel

2006-01-01

158

KBWS: an EMBOSS associated package for accessing bioinformatics web services  

PubMed Central

The availability of bioinformatics web-based services is rapidly proliferating, for their interoperability and ease of use. The next challenge is in the integration of these services in the form of workflows, and several projects are already underway, standardizing the syntax, semantics, and user interfaces. In order to deploy the advantages of web services with locally installed tools, here we describe a collection of proxy client tools for 42 major bioinformatics web services in the form of European Molecular Biology Open Software Suite (EMBOSS) UNIX command-line tools. EMBOSS provides sophisticated means for discoverability and interoperability for hundreds of tools, and our package, named the Keio Bioinformatics Web Service (KBWS), adds functionalities of local and multiple alignment of sequences, phylogenetic analyses, and prediction of cellular localization of proteins and RNA secondary structures. This software implemented in C is available under GPL from http://www.g-language.org/kbws/ and GitHub repository http://github.com/cory-ko/KBWS. Users can utilize the SOAP services implemented in Perl directly via WSDL file at http://soap.g-language.org/kbws.wsdl (RPC Encoded) and http://soap.g-language.org/kbws_dl.wsdl (Document/literal).

2011-01-01

159

Web Site Accessibility: What Logo Will We Use Today?  

ERIC Educational Resources Information Center

The Special Educational Needs and Disability Act has amended the Disability Discrimination Act and requires that students with a disability not be discriminated against or substantially disadvantaged by establishments of further and higher education. Academic web site developers must take steps to ensure that their sites fulfil this requirement,…

Witt, Neil; McDermott, Anne

2004-01-01

160

NEW WEB-BASED ACCESS TO NUCLEAR STRUCTURE DATASETS.  

SciTech Connect

As part of an effort to migrate the National Nuclear Data Center (NNDC) databases to a relational platform, a new web interface has been developed for the dissemination of the nuclear structure datasets stored in the Evaluated Nuclear Structure Data File and Experimental Unevaluated Nuclear Data List.

WINCHELL,D.F.

2004-09-26

161

Accessing NASA Technology with the World Wide Web.  

National Technical Information Service (NTIS)

NASA Langley Research Center (LaRC) began using the World Wide Web (WWW) in the summer of 1993, becoming the first NASA installation to provide a Center-wide home page. This coincided with a reorganization of LaRC to provide a more concentrated focus on t...

D. J. Bianco M. L. Nelson

1995-01-01

162

Delfos: the Oracle to Predict Next Web User's Accesses  

Microsoft Academic Search

Despite the wide and intensive research efforts focused on web prediction and prefetching techniques aimed to re- duce user's perceived latency, few attempts to implement and use them in real environments have been done, mainly due to their complexity and supposed limitations that low user available bandwidths imposed few years ago. Nev- ertheless, current user bandwidths open a new scenario

J. A. Gil; J. Sahuquillo; A. Pont

163

Not Your Father's Web Site: Corporate Sites Emerge as New Content Innovators.  

ERIC Educational Resources Information Center

New economy corporate Web sites have pioneered exciting techniques-rich media, interactivity, personalization, community, and integration of much third-party content. Discusses business-to-business (B2B) Web commerce, with examples of several B2B corporate sites; portal and content elements of these sites; and corporate content outlooks. (AEF)

O'Leary, Mick

2002-01-01

164

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

165

Scalable architectures and services for ubiquitous Web access  

Microsoft Academic Search

The second part of the tutorial is devoted to the analysis of the architectures for the deployment of content adaptation services with a special focus on system scalability and issues related to data consistency and privacy. We define the design of a content adaptation architecture as a mapping problem. The functions of content adaptation, data management and connection management must

Michele Colajanni; Riccardo Lancellotti; Philip S. Yu

166

User-perceived performance of Web-browsing and interactive data in HFC cable access networks  

Microsoft Academic Search

Using analysis and simulation, we study the performance of Web-browsing and interactive data applications as perceived by the users of shared packet access networks. We use end-to-end page delays to characterise the user experience, and introduce a measure called equivalent circuit rate (ECR). The ECR for a user of a shared packet access network is the dedicated access circuit bit

N. K. Shankaranarayanan; Zhimei Jiang; Partho Mishra

2001-01-01

167

Privacy and health in the information age: a content analysis of health web site privacy policy statements.  

PubMed

This article reports a content analysis of the privacy policy statements (PPSs) from 97 general reference health Web sites that was conducted to examine the ways in which visitors' privacy is constructed by health organizations. PPSs are formal documents created by the Web site owner to describe how information regarding site visitors and their behavior is collected and used. The results show that over 80% of the PPSs in the sample indicated automatically collecting or requesting that visitors voluntarily provide information about themselves, and only 3% met all five of the Federal Trade Commission's Fair Information Practices guidelines. Additionally, the results suggest that the manner in which PPSs are framed and the use of justifications for collecting information are tropes used by health organizations to foster a secondary exchange of visitors' personal information for access to Web site content. PMID:19657826

Rains, Stephen A; Bosch, Leslie A

2009-07-01

168

Enhancing Contents-Link Coupled Web Page Clustering and Its Evaluation  

Microsoft Academic Search

Web page clustering is a fundamental technique to offer a solution for data management, information locating and its interpretation of Web data and to facilitate users for navigation, discrimination and understanding. Most existing clustering algorithms cannot adapt well to Web clustering directly in terms of efficiency and effectiveness. Combining contents analysis and hyperlink structure analysis has been proven a better

Yitong Wang; Masaru Kitsuregawa

2004-01-01

169

Effectiveness of corporate employment web sites: How content and form influence intentions to apply  

Microsoft Academic Search

Purpose – Although research is emerging, the knowledge base on the evaluative determinants of the effectiveness of corporate employment web sites is still limited. This paper attempts to narrow this gap by investigating how potential job applicants' evaluations of web site content- and form-related attributes contribute to corporate employment web site effectiveness. Design\\/methodology\\/approach – The approach takes the form of

Birgelen van M. J. H; M. G. M. Wetzels; Dolen van W. M

2008-01-01

170

Effectiveness of corporate employment web sites : How content and form influence intentions to apply  

Microsoft Academic Search

Purpose – Although research is emerging, the knowledge base on the evaluative determinants of the effectiveness of corporate employment web sites is still limited. This paper attempts to narrow this gap by investigating how potential job applicants' evaluations of web site content- and form-related attributes contribute to corporate employment web site effectiveness. Design\\/methodology\\/approach – The approach takes the form of

Marcel J. H. van Birgelen; Martin G. M. Wetzels; Willemijn M. van Dolen

2008-01-01

171

Design and Development of Web Services for Accessing Free Hydrological Data from the Czech Republic  

Microsoft Academic Search

\\u000a The target of the open source hydrodata.cz web application and web services is to bridge the gap between modelers and field\\u000a hydrologists by providing free, publicly accessible precipitation, snow, temperature, and discharge data series from multiple\\u000a organizations in the Czech Republic using the standardized the CUAHSI WaterML data format and search services. Data providers\\u000a contributing to this effort include the

Ji?í Kadlec; Daniel Ames

172

An Extensible XACML Authorization Web Service: Application to Dynamic Web Sites Access Control  

Microsoft Academic Search

Attribute Based Access Control can define permissions based on just about any security relevant characteristics of requestors, actions, resources, and environment, known as attributes. XACML is an access control OASIS standard compliant to this approach. Although XACML seems to allow the specification and enforcement of any access control policy, current tools can require modifying the source code of the authorization

Romain Laborde; Marwan Cheaito; François Barrère; Abdelmalek Benzekri

2009-01-01

173

Web service activities at the IRIS DMC to support federated and multidisciplinary access  

NASA Astrophysics Data System (ADS)

At the IRIS Data Management Center (DMC) we have developed a suite of web service interfaces to access our large archive of, primarily seismological, time series data and related metadata. The goals of these web services include providing: a) next-generation and easily used access interfaces for our current users, b) access to data holdings in a form usable for non-seismologists, c) programmatic access to facilitate integration into data processing workflows and d) a foundation for participation in federated data discovery and access systems. To support our current users, our services provide access to the raw time series data and metadata or conversions of the raw data to commonly used formats. Our services also support simple, on-the-fly signal processing options that are common first steps in many workflows. Additionally, high-level data products derived from raw data are available via service interfaces. To support data access by researchers unfamiliar with seismic data we offer conversion of the data to broadly usable formats (e.g. ASCII text) and data processing to convert the data to Earth units. By their very nature, web services are programmatic interfaces. Combined with ubiquitous support for web technologies in programming & scripting languages and support in many computing environments, web services are very well suited for integrating data access into data processing workflows. As programmatic interfaces that can return data in both discipline-specific and broadly usable formats, our services are also well suited for participation in federated and brokered systems either specific to seismology or multidisciplinary. Working within the International Federation of Digital Seismograph Networks, the DMC collaborated on the specification of standardized web service interfaces for use at any seismological data center. These data access interfaces, when supported by multiple data centers, will form a foundation on which to build discovery and access mechanisms for data sets spanning multiple centers. To promote the adoption of these standardized services the DMC has developed portable implementations of the software needed to host these interfaces, minimizing the work required at each data center. Within the COOPEUS project framework, the DMC is working with EU partners to install web services implementations at multiple data centers in Europe.

Trabant, Chad; Ahern, Timothy K.

2013-04-01

174

Host plant resistance and linear furanocoumarin content of Apium accessions.  

PubMed

Linear furanocoumarin contents and antibiotic resistance to Liriomyza trifolii (Burgess) were documented for Apium species being investigated in a celery breeding program. In no-choice tests, L. trifolii fed more, produced more offspring, and had the highest pupal and adult productivity on the widely planted cultivar 'Tall Utah' 52-70R (Apium graveolens L.). Antibiotic effects of the commercial cultivar 'Tall Utah' 52-70 HK and University of California families 87A-147 and 87A-338, derived from A. chilense Hook and Arn., were intermediate. Only A. nodiflorum (L.) Lag (accession 87A-236) did not allow survival beyond the larval stage. Concentrations of the carcinogenic and mutagenic linear furanocoumarins varied by location within plants (leaves usually greater than petioles), by specific compound (trend: psoralen less than xanthotoxin less than bergapten or isopimpinellin), and between accessions. A. nodiflorum had the lowest foliar levels of phototoxic furanocoumarins (11.8 micrograms/g fresh weight) and the best potential for use in the breeding program. Foliar levels of phototoxic furanocoumarins (psoralen, bergapten, and xanthotoxin) in plants 87A-147-3 (406 micrograms/g), 87A-147-2 (292.9 micrograms/g), and the family 87A-338 (265.9 micrograms/g) were 22.6, 16.3, and 14.8 times higher, respectively, than the concentration known to produce contact dermatitis (18 micrograms/g). Even with such variability in concentration, the foliar content of linear furanocoumarins (individually or total) and L. trifolii adult production were not correlated. PMID:2345223

Trumble, J T; Dercks, W; Quiros, C F; Beier, R C

1990-04-01

175

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

176

A System for Web-based Access to the HSOS Database  

NASA Astrophysics Data System (ADS)

Huairou Solar Observing Station's (HSOS) magnetogram and dopplergram are world-class instruments. Access to their data has opened to the world. Web-based access to the data will provide a powerful, convenient tool for data searching and solar physics. It is necessary that our data be provided to users via the Web when it is opened to the world. In this presentation, the author describes general design and programming construction of the system. The system will be generated by PHP and MySQL. The author also introduces basic feature of PHP and MySQL.

Lin, G.

177

A 'visual-centred' mapping approach for improving access to Web 2.0 for people with visual impairments.  

PubMed

On simple Web pages, the text to speech translation provided by a screen reader works relatively well. This is not the case for more sophisticated 'Web 2.0' pages, in which many interactive visual features, such as tickers, tabs, auto-suggest lists, calendars and slideshows currently remain inaccessible. Determining how to present these in audio is challenging in general, but may be particularly so for certain groups, such as people with congenital or early-onset blindness, as they are not necessarily familiar with the visual interaction metaphors that are involved. This article describes an evaluation of an audio Web browser designed using a novel approach, whereby visual content is translated to audio using algorithms derived from observing how sighted users interact with it. Both quantitative and qualitative measures showed that all participants, irrespective of the onset of their visual impairment, preferred the visual interaction-based audio mappings. Participants liked the fact that the mappings made the dynamic content truly accessible, rather than merely available to those who could find it, as is presently the case. The results indicate that this 'visual-centred' mapping approach may prove to be a suitable technique for translating complex visual content to audio, even for users with early-onset visual disabilities. PMID:20575753

Jay, Caroline; Brown, Andrew; Harper, Simon

2011-01-01

178

MIMOSA: context-aware adaptation for ubiquitous web access  

Microsoft Academic Search

The ubiquitous computing scenario is characterized by heterogeneity of devices used to access services, and by frequent changes\\u000a in the user’s context. Hence, adaptation according to the user’s context and the used devices is necessary to allow mobile\\u000a users to efficiently exploit Internet-based services. In this paper, we present a distributed framework, named MIMOSA, that\\u000a couples a middleware for context-awareness

Delfina Malandrino; Francesca Mazzoni; Daniele Riboni; Claudio Bettini; Michele Colajanni; Vittorio Scarano

2010-01-01

179

Web MIXes: A System for Anonymous and Unobservable Internet Access  

Microsoft Academic Search

We present the architecture, design issues and functions of a MIX-based system for anonymous and unobservable real-time Internet\\u000a access. This system prevents traffic analysis as well as flooding attacks. The core technologies include an adaptive, anonymous,\\u000a time\\/volumesliced channel mechanism and a ticket-based authentication mechanism. The system also provides an interface to\\u000a inform anonymous users about their level of anonymity and

Oliver Berthold; Hannes Federrath; Stefan Köpsell

2000-01-01

180

The Content and Accessibility of Sex Education Information on the Internet  

Microsoft Academic Search

The objective of this studywas to describe Web sites with sex education material and assess the accessibility of specific information on the Internet. First, the authors conducted a review of Web sites using specific sex education keywords. Second, 27 undergraduate students were asked to locate information on proper condom use and sexually transmitted disease (STD) symptoms. The time, number of

Meghan Smith; Emily Gertz; Sarah Alvarez; Peter Lurie

2000-01-01

181

Special Report: State of the Content Industry. Content Anywhere, Anytime; Content Management Technology: A Booming Market; Entering the Content Space: Carry Your Lawyer at All Times; Content Unchained: The New Value Web; Arnold on Pricing: Disturbing Trends Ahead.  

ERIC Educational Resources Information Center

This special report on the electronic content industry covers three interrelated areas: technology, rights/legal issues, and pricing/business models. Articles include: "Content Anywhere, Anytime"; "Content Management Technology: A Booming Market"; "Entering the Content Space: Carry Your Lawyer at All Times"; Content Unchained: The New Value Web";…

Mickey, Bill; Trippe, Bill; Ojala, Marydee; Pack, Thomas; Arnold, Stephen E.

2001-01-01

182

A Web-based spatial decision support system for accessibility analysis—concepts and methods  

Microsoft Academic Search

The main aim of this paper is to describe the concept of the spatial decision support system (SDSS), which combines network\\u000a analysis and spatial analysis of accessibility with an interactive Web-based map application. There are two main objectives\\u000a of this research: (1) to assess the spatial variation of accessibility to certain services within the city area, based on\\u000a the network

Jan Burdziej

183

Teachers Click with Shared Content and Anytime Access  

ERIC Educational Resources Information Center

Web 2.0 is a widely used term to describe web-based tools that rely on user input and collaboration. So what would professional learning 2.0 look like? When educators are asked to do more with less and still reach ever-rising benchmarks for student achievement, leaders must begin to think differently about how classroom teachers are supported. Now…

Pijanowski, Lissa

2010-01-01

184

SOMA: mutual approval for included content in web pages  

Microsoft Academic Search

Unrestricted information flows are a key security weakness of current web design. Cross-site script- ing, cross-site request forgery, and other attacks typically require that information be sent or retrieved from arbitrary, often malicious, web servers. In this paper we proposeSame Origin Mutual Approval (SOMA), a new policy for controlling information flows that prevents common web vulnerabilities. By requiring site operators

Terri Oda; Glenn Wurster; Paul C. Van Oorschot; Anil Somayaji

2008-01-01

185

Web-Accessible Database of hsp65 Sequences from Mycobacterium Reference Strains?†  

PubMed Central

Mycobacteria include a large number of pathogens. Identification to species level is important for diagnoses and treatments. Here, we report the development of a Web-accessible database of the hsp65 locus sequences (http://msis.mycobacteria.info) from 149 out of 150 Mycobacterium species/subspecies. This database can serve as a reference for identifying Mycobacterium species.

Dai, Jianli; Chen, Yuansha; Lauzardo, Michael

2011-01-01

186

Context-Dependent Access Control for Web-Based Collaboration Environments with Role-based Approach  

Microsoft Academic Search

Controlling access to resources is one of the most important protec- tion goals for web-based collaboration environments in practice. In general, ac- cess control requires identification of subjects that intend to use resources. Today, there are several identification mechanisms for subjects, providing different se- curity levels. However, some of them are only suitable to be used in specific en- vironments.

Ruben Wolf; Markus Schneider

2003-01-01

187

The Relationship between Web Accessibility Policy and Practice in Postsecondary Institutions  

ERIC Educational Resources Information Center

From computer workstations to the world of the web, statutes and policies have afforded students with disabilities the right to participate in postsecondary education in a non-discriminatory manner. Automatic doors and adjustable tables are a commonplace on campuses and represent prime examples of accessible policy adherence, but what affect do…

Whitney, Michael P.

2009-01-01

188

Ephemeral and Persistent Personalization in Adaptive Information Access to Scholarly Publications on the Web  

Microsoft Academic Search

We show how personalization techniques can be e xploited to implement more a daptive a nd effective information access s ystems in electronic publishing. We distinguish persistent (or long term) and ephemeral (or short t erm) personalization, and we describe how both of them can be profitably applied in information filtering and retrieval systems used, via a specialized Web portal,

Stefano Mizzaro; Carlo Tasso

2002-01-01

189

A new privacy model for hiding group interests while accessing the Web  

Microsoft Academic Search

This paper presents a new privacy model for hiding the information interests of a homogenous group of users who share a local area network and an access point to the Web. The suggested model is aimed at preventing eavesdroppers from using identifiable members' tracks to infer the group common interests (referred to as the group profile) while allowing members of

Yuval Elovici; Bracha Shapira; Adlai Maschiach

2002-01-01

190

Policies and Procedures for Accessing Archived NASA Data via the Web  

NASA Technical Reports Server (NTRS)

The National Space Science Data Center (NSSDC) was established by NASA to provide for the preservation and dissemination of scientific data from NASA missions. This white paper will address the NSSDC policies that govern data preservation and dissemination and the various methods of accessing NSSDC-archived data via the web.

James, Nathan

2011-01-01

191

CASE STUDY: The Cancer Digital Slide Archive: A Web Platform for Accessing TCGA Data  

Cancer.gov

Dr. David Gutman and Dr. Lee Cooper developed The Cancer Digital Slide Archive (CDSA), a web platform for accessing pathology slide images of TCGA samples. Find out how they did it and how to use the CDSA website in this Case Study.

192

Watershed Dynamics: Using Web-based GIS to Access Data and Study the Hydrosphere  

Microsoft Academic Search

The Watershed Dynamics project has developed online GIS tools and curriculum to provide high school earth science students with access to data and analysis tools to perform investigations on their local watershed. Using FieldScope web-based GIS tools from National Geographic, students investigate precipitation, stream discharge, and land cover data for the US. Students use the data to study water availability

C. K. Buzby; K. Jona

2010-01-01

193

Making Web-based tables accessible for users of screen readers  

Microsoft Academic Search

Reading and understanding information presented in tabular format have posed specific challenges for blind individuals who use screen readers to access computers. In this article the results of a study of the types of problems blind individuals using screen readers experienced, when reading tables on the World Wide Web, have been summarized. Nine blind participants were asked to extract information

Dagmar Amtmann; Kurt Johnson; Debbie Cook

2002-01-01

194

TRAC FBI Web Site: Transactional Records Access Clearinghouse  

NSDL National Science Digital Library

The Transactional Records Clearinghouse at Syracuse University, a widely respected independent and non-partisan "data gathering, data research and data distribution organization," has done it again. TRAC's new FBI site is unparalleled for the amount of information it offers on one of the least monitored federal agencies. After free registration, users can access over 23,000 pages of information, including numerous tables, maps, and graphs. Findings and data graphics on the FBI are divided into five sections: Key Findings, FBI national Profile and Enforcement Trends Over Time, White Collar Counts, FBI at Work, and District Enforcement. The site also directs users to the text of criminal statutes enforced by the FBI and the sources for the data, including descriptions of strengths and weaknesses. This site demonstrates how technology and the Freedom of Information Act can be combined to provide citizens with highly-detailed but easy to acess information about their government.

Burnham, David.; Long, Susan.

1997-01-01

195

BioIMAX: A Web 2.0 approach for easy exploratory and collaborative access to multivariate bioimage data  

PubMed Central

Background Innovations in biological and biomedical imaging produce complex high-content and multivariate image data. For decision-making and generation of hypotheses, scientists need novel information technology tools that enable them to visually explore and analyze the data and to discuss and communicate results or findings with collaborating experts from various places. Results In this paper, we present a novel Web2.0 approach, BioIMAX, for the collaborative exploration and analysis of multivariate image data by combining the webs collaboration and distribution architecture with the interface interactivity and computation power of desktop applications, recently called rich internet application. Conclusions BioIMAX allows scientists to discuss and share data or results with collaborating experts and to visualize, annotate, and explore multivariate image data within one web-based platform from any location via a standard web browser requiring only a username and a password. BioIMAX can be accessed at http://ani.cebitec.uni-bielefeld.de/BioIMAX with the username "test" and the password "test1" for testing purposes.

2011-01-01

196

Programmatic access to data and information at the IRIS DMC via web services  

NASA Astrophysics Data System (ADS)

The IRIS Data Management Center (DMC) has developed a suite of web services that provide access to the DMC's time series holdings, their related metadata and earthquake catalogs. In addition, services are available to perform simple, on-demand time series processing at the DMC prior to being shipped to the user. The primary goal is to provide programmatic access to data and processing services in a manner usable by and useful to the research community. The web services are relatively simple to understand and use and will form the foundation on which future DMC access tools will be built. Based on standard Web technologies they can be accessed programmatically with a wide range of programming languages (e.g. Perl, Python, Java), command line utilities such as wget and curl or with any web browser. We anticipate these services being used for everything from simple command line access, used in shell scripts and higher programming languages to being integrated within complex data processing software. In addition to improving access to our data by the seismological community the web services will also make our data more accessible to other disciplines. The web services available from the DMC include ws-bulkdataselect for the retrieval of large volumes of miniSEED data, ws-timeseries for the retrieval of individual segments of time series data in a variety of formats (miniSEED, SAC, ASCII, audio WAVE, and PNG plots) with optional signal processing, ws-station for station metadata in StationXML format, ws-resp for the retrieval of instrument response in RESP format, ws-sacpz for the retrieval of sensor response in the SAC poles and zeros convention and ws-event for the retrieval of earthquake catalogs. To make the services even easier to use, the DMC is developing a library that allows Java programmers to seamlessly retrieve and integrate DMC information into their own programs. The library will handle all aspects of dealing with the services and will parse the returned data. By using this library a developer will not need to learn the details of the service interfaces or understand the data formats returned. This library will be used to build the software bridge needed to request data and information from within MATLAB°. We also provide several client scripts written in Perl for the retrieval of waveform data, metadata and earthquake catalogs using command line programs. For more information on the DMC's web services please visit http://www.iris.edu/ws/

Weertman, B. R.; Trabant, C.; Karstens, R.; Suleiman, Y. Y.; Ahern, T. K.; Casey, R.; Benson, R. B.

2011-12-01

197

Finding and Managing Web Content with Copernic 2000.  

ERIC Educational Resources Information Center

Highlights features of Copernic 2000, a desktop application that helps manage information from the Web more efficiently. Explains search capabilities that execute simultaneous queries in multiple search engines and ranks them by relevance; refining search options on retrieved Web sites; browsing capabilities; managing results with bookmarks;…

Spalti, Michael W.

1999-01-01

198

Accessibility and Usability of User-centric Web Interaction with a Unified-Ubiquitous Name-based Directory Service  

Microsoft Academic Search

Web-based information services should be evaluated for accessibility and usability with various types of Internet Web-browsing\\u000a devices, interacting with web information servers including directory server. A ubiquitous name-based directory server, accessible\\u000a and usable with a variety of Web-browsing devices (e.g. Internet-capable mobile phones), could be a unified center for human-centric\\u000a Web interaction services as well as for business models based

Yung Bok Kim

2010-01-01

199

Cloud-based Web Services for Near-Real-Time Web access to NPP Satellite Imagery and other Data  

NASA Astrophysics Data System (ADS)

We are building a scalable, cloud computing-based infrastructure for Web access to near-real-time data products synthesized from the U.S. National Polar-Orbiting Environmental Satellite System (NPOESS) Preparatory Project (NPP) and other geospatial and meteorological data. Given recent and ongoing changes in the the NPP and NPOESS programs (now Joint Polar Satellite System), the need for timely delivery of NPP data is urgent. We propose an alternative to a traditional, centralized ground segment, using distributed Direct Broadcast facilities linked to industry-standard Web services by a streamlined processing chain running in a scalable cloud computing environment. Our processing chain, currently implemented on Amazon.com's Elastic Compute Cloud (EC2), retrieves raw data from NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) and synthesizes data products such as Sea-Surface Temperature, Vegetation Indices, etc. The cloud computing approach lets us grow and shrink computing resources to meet large and rapid fluctuations (twice daily) in both end-user demand and data availability from polar-orbiting sensors. Early prototypes have delivered various data products to end-users with latencies between 6 and 32 minutes. We have begun to replicate machine instances in the cloud, so as to reduce latency and maintain near-real time data access regardless of increased data input rates or user demand -- all at quite moderate monthly costs. Our service-based approach (in which users invoke software processes on a Web-accessible server) facilitates access into datasets of arbitrary size and resolution, and allows users to request and receive tailored and composite (e.g., false-color multiband) products on demand. To facilitate broad impact and adoption of our technology, we have emphasized open, industry-standard software interfaces and open source software. Through our work, we envision the widespread establishment of similar, derived, or interoperable systems for processing and serving near-real-time data from NPP and other sensors. A scalable architecture based on cloud computing ensures cost-effective, real-time processing and delivery of NPP and other data. Access via standard Web services maximizes its interoperability and usefulness.

Evans, J. D.; Valente, E. G.

2010-12-01

200

Web server QoS management by adaptive content delivery  

Microsoft Academic Search

The Internet is undergoing substantial changes from a communication and browsing infrastructure to a medium for conducting business and selling a myriad of emerging services. The World-Wide Web provides a uniform and widely-accepted application interface used by these services to reach multitudes of clients. These changes place the Web server at the center of a gradually emerging E-service infrastructure with

Tarek F. Abdelzaher; Nina Bhatti

1999-01-01

201

NWGISS: The Web GIS Software Suite for Interoperable Access and Manipulation of EOS Data  

NASA Astrophysics Data System (ADS)

NASA HDF-EOS Web GIS Software Suite (NWGISS) is a web-based data and information system that provides interoperable data accesses and services of HDF-EOS data to users. The software suite consists of a set of OGC standard compliant components, including a Web Map Server, a Web Coverage Server, a Catalog/Registries Server, a Multiple-protocol Geoinformation Client, and a Toolbox. Those components can work either independently or collaboratively. NWGISS can work with any HDF-4 based HDF-EOS data. The map server serves HDF-EOS data as maps to any OGC-compliant map clients. The coverage server allows GIS users to access multi-dimensional data at user specified geographic location, parameters, map projection, and formats in interoperable way. The catalog/registries server provides the catalog search capabilities to OGC-compliant catalog clients. The Multi-protocol Geoinformation Client enables users to access multi-source data served by OGC compliant web coverage, map, and feature servers and provides a set of data manipulation, processing, and analysis functions at user's desktop. The tool component consists of two-way translators between HDF-EOS and major GIS formats as well as the CreateCapabilities program that automatically creates the XML capability descriptions from the metadata in HDF-EOS. The combination of NWGISS servers and client provides interoperable, personalized, on-demand access and manipulation of EOS data to user community. Executables of all NWGISS components are free to any users and can be downloaded from http://laits.gmu.edu.

di, L.; Yang, W.; Deng, M.; Deng, D.; Zhao, P.; McDonald, K.

2002-12-01

202

An integrated web environment for fast access and easy management of a synchrotron beam line  

NASA Astrophysics Data System (ADS)

Tired of all the time spent on the phone or sending emails to schedule beam time? Why not make your own schedule when it is convenient to you? The integrated web environment at the NIGMS East Coast Structural Biology Research Facility allows users to schedule their own beam time as if they were making travel arrangements and provides staff with a set of toolkits for management of routine tasks. These unique features are accessible through the MediaWiki-powered home pages. Here we describe the main features of this web environment that have shown to allow for an efficient and effective interaction between the users and the facility.

Qian, Kun; Stojanoff, Vivian

2007-11-01

203

Separate but Equal? A Comparison of Content on Library Web Pages and Their Text Versions  

ERIC Educational Resources Information Center

This study examines the Web sites of the Association of Research Libraries member libraries to determine the presence of a separate text version of the default graphical homepage. The content of the text version and the homepage is compared. Of 121 Web sites examined, twenty libraries currently offer a text version. Ten sites maintain wholly…

Hazard, Brenda L.

2008-01-01

204

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

205

A Framework for Automatic Classification of e-Business Web Content  

Microsoft Academic Search

Classifying the specific e-Business Web content in search results is presently done manually by human who visit a website and then define under which topic headings the web page or site belongs. This is a tedious and expensive process done by many portal websites. Unfortunately, it has become almost impossible for a casual user to look for specific e-Business information

Udomsit Sukakanya; Kriengkrai Porkaew

206

Mental Health Resources for LGBT Collegians: A Content Analysis of College Counseling Center Web Sites  

Microsoft Academic Search

This study content analyzed a randomly selected stratified national sample of 203 four-year United States colleges' counseling center Web sites to assess the degree to which such sites feature information and reference services for lesbian, gay, bisexual, and transgender (LGBT) collegians. Results revealed that LGBT-targeted communications were infrequent. For instance, fewer than one third of counseling center Web sites described

Paul J. Wright; Christopher J. McKinley

2010-01-01

207

INSYDER: a content-based visual-information-seeking system for the Web  

Microsoft Academic Search

This paper presents INSYDER, a content- based visual-information-seeking system for the Web. The Web can be seen as one huge digital library offering a variety of very useful information for business analysts. INSYDER addresses these possibilities and offers power- ful retrieval and visualisation functionalities. The main focus during the development was on the usability of the system. Therefore, a variety

Harald Reiterer; Gabriela Tullius; Thomas M. Mann

2005-01-01

208

HTSstation: A Web Application and Open-Access Libraries for High-Throughput Sequencing Data Analysis  

PubMed Central

The HTSstation analysis portal is a suite of simple web forms coupled to modular analysis pipelines for various applications of High-Throughput Sequencing including ChIP-seq, RNA-seq, 4C-seq and re-sequencing. HTSstation offers biologists the possibility to rapidly investigate their HTS data using an intuitive web application with heuristically pre-defined parameters. A number of open-source software components have been implemented and can be used to build, configure and run HTS analysis pipelines reactively. Besides, our programming framework empowers developers with the possibility to design their own workflows and integrate additional third-party software. The HTSstation web application is accessible at http://htsstation.epfl.ch.

David, Fabrice P. A.; Delafontaine, Julien; Carat, Solenne; Ross, Frederick J.; Lefebvre, Gregory; Jarosz, Yohan; Sinclair, Lucas; Noordermeer, Daan; Rougemont, Jacques; Leleu, Marion

2014-01-01

209

TopicSelect: a platform for automated publications of web content  

NASA Astrophysics Data System (ADS)

The popularity of tablets in recent years has given rise to a new style of presenting web content, one that mimics the appearance of print magazines. We present a pipeline which automatically harvests and reformats web content from arbitrary sources into a paginated multi-column form and deliver the publication to the reader via print or mobile. We are working to integrate this pipeline into HP's Scheduled Delivery program.

Liu, Jerry; Zhang, Yu; Wu, Xiao-Wei; Ahmadullin, Ildus

2013-03-01

210

On the Design of Web-Based Interactive Multimedia Contents for English Learning  

Microsoft Academic Search

We present a Web-based authoring tool to create interactive multimedia contents for English learning. Target users of this authoring tool are English teachers and content designer, therefore, ease of use and simplicity are the fundamental issues. Furthermore, the authoring tool and multimedia database are integrated in the context of intelligent Web-based interactive language learning (IWiLL) system. Special language tools to

Chin-hwa Kuo; David Wible; Meng-Chang Chen; Nai-lung Tsao; Tzu-chuan Chou

2004-01-01

211

Enhanced Access to Earth Science Data through Standards-based Web Services and Applications  

NASA Astrophysics Data System (ADS)

The Terrestrial Observation and Prediction System (TOPS) at NASA Ames Research Center's Ecological Forecasting Lab generates a suite of gridded data products in near real-time that are designed to enhance management decisions related to floods, droughts, forest fires, human health, as well as crop, range, and forest production. Derived from the synthesis of satellite imagery, ground observations, and specialized ecosystem models, our data products hold great potential for supporting research and practical applications across a wide range of disciplines. In order to provide enhanced access to our data and to promote multidisciplinary collaboration we implement standards-based web services. We serve TOPS data conforming to the Open-source Project for a Network Data Access Protocol (OPeNDAP) which allows subsetting and distribution of large HDF or NetCDF datasets, complete with standards-based metadata. Additionally, we implement a standard Web Map Service (WMS) for visualization of geospatial data. To further extend the use of our data to a wider audience we build upon these web services to develop browser-based visualization and analysis tools. We use Asynchronous Javascript and XML (AJAX) techniques to build interactive web applications leveraging our web services. For example, our WMS provides the map image tiles used in our mapping client. Users can click on the map to query TOPS datasets and regional summaries via OPeNDAP, producing time-series charts allowing temporal analysis of environmental trends and associated phenomena. We present the TOPS Data Gateway and its components, highlighting how the use of open protocols and standards provides improved data access for our clients and research partners, encouraging data interoperability and multidisciplinary collaboration.

Hiatt, S. H.; Hashimoto, H.; Melton, F. S.; Michaelis, A.; Milesi, C.; Nemani, R. R.; Votava, P.; Wang, W.

2009-12-01

212

Experiences with http/WebDAV protocols for data access in high throughput computing  

NASA Astrophysics Data System (ADS)

In the past, access to remote storage was considered to be at least one order of magnitude slower than local disk access. Improvement on network technologies provide the alternative of using remote disk. For those accesses one can today reach levels of throughput similar or exceeding those of local disks. Common choices as access protocols in the WLCG collaboration are RFIO, [GSI]DCAP, GRIDFTP, XROOTD and NFS. HTTP protocol shows a promising alternative as it is a simple, lightweight protocol. It also enables the use of standard technologies such as http caching or load balancing which can be used to improve service resilience and scalability or to boost performance for some use cases seen in HEP such as the "hot files". WebDAV extensions allow writing data, giving it enough functionality to work as a remote access protocol. This paper will show our experiences with the WebDAV door for dCache, in terms of functionality and performance, applied to some of the HEP work flows in the LHC Tier1 at PIC.

Bernabeu, Gerard; Martinez, Francisco; Acción, Esther; Bria, Arnau; Caubet, Marc; Delfino, Manuel; Espinal, Xavier

2011-12-01

213

A Web-accessible Shaking Table Experiment for the Remote Monitoring of Seismic Effects in Structures  

Microsoft Academic Search

A remotely accessible system for controlling shake table laboratory experiments is presented. The Shake Table WebLab at MIT?s Civil Engineering Department is implemented under the iLab initiative for the development of educationally oriented remote experiments. The fully functional system allows students and researchers to subject a model structure to vibration at its base while receiving accelerometer readings in real time

Mazen Manasseh; Eduardo Kausel; Kevin Amaratunga

2004-01-01

214

A web server framework for rich interactive access to geologic and water quality data.  

NASA Astrophysics Data System (ADS)

Geodata visualization and analysis is founded on proper access to all available data. Throughout several research projects Earthfx and GEUS managed to gather relevant data from both national and local databases into one platform. The web server platform which is easy accessible on the internet displays all types of spatially distributed geodata ranging from geochemistry, geological and geophysical well logs, surface- and airborne geophysics to any type of temporal measurements like water levels and trends in groundwater chemistry. Geological cross sections are an essential tool for the geoscientist. Moving beyond plan-view web mapping, GEUS and Earthfx have developed a webserver technology that provides the user with the ability to dynamically interact with geologic models developed for various projects in Denmark and in transboundary aquifers across the Danish-German border. The web map interface allows the user to interactively define the location of a multi-point profile, and the selected profile will be quickly drawn and illustrated as a slice through the 3D geologic model. Including all borehole logs within a user defined offset from the profile. A key aspect of the webserver technology is that the profiles are presented through a fully dynamic interface. Web users can select and interact with borehole logs contained in the underlying database, adjust vertical exaggeration, and add or remove off-section boreholes by dynamically adjusting the offset projection distance. In a similar manner to the profile tool, an interactive water level and water chemistry graphing tool has been integrated into the web service interface. Again, the focus is on providing a level of functionality beyond simple data display. Future extensions to the web interface and functionality are possible, as the web server utilizes the same code engine that is used for desktop geologic model construction and water quality data management. In summary, the GEUS/Earthfx web server tools demonstrate that a rich interaction with geologic models and borehole data is possible through a web interface. Examples from existing and active homepages will be shown.

Scharling, Peter; Hinsby, Klaus; Brennan, Kelsy

2014-05-01

215

A personalized access model: concepts and services for content delivery platforms  

Microsoft Academic Search

Access to relevant information, adapted to user's needs, preferences and environment, is a challenge in many applications running in content delivery platforms, like IPTV, VoD and mobile Video. In order to provide users with personalized content, applications use various techniques such as content recommendation, content filtering, preference-driven queries, etc. These techniques exploit different knowledge organized into profiles and contexts. However,

Sofiane Abbar; Mokrane Bouzeghoub; Dimitre Kostadinov; Stéphane Lopes; Armen Aghasaryan; Stéphane Betgé-brezetz

2008-01-01

216

A Web Services Implementation Framework for Financial Enterprise Content Management  

Microsoft Academic Search

There is an increasing demand to replace the current cost ineffective and bad time-to-market hardcopy publishing and delivery of content in the financial world. Four major goals, namely, management, cost, legal issues, and value, for a financial system should be reached. The new financial enterprise content management system (FECMS) could archive these goals by providing different content management, process establishment,

Kevin H. S. Kwok; Dickson K. W. Chiu

2004-01-01

217

Variation in icariin and flavonoid contents of barrenwort accessions native to Guizhou, China  

Microsoft Academic Search

Flavonoid and icariin contents of 87 samples drawn from 21 accessions of seven species native to Guizhou, China, of the genus Epimedium were determined by means of ultraviolet and high-performance liquid chromatography. The contents differed significantly among the species and accessions. E. acuminatum, E. yinjiangense, E. myrianthum, E. wushanense, and E. simplicifloum had greater amounts of flavonoids and icariin than

Mao-Yin Sheng; Qing-Fu Chen; Qing-Xiong Yang

2008-01-01

218

Exploring Teachers' Perceived Self Efficacy and Technological Pedagogical Content Knowledge with Respect to Educational Use of the World Wide Web  

ERIC Educational Resources Information Center

Research in the area of educational technology has claimed that Web technology has driven online pedagogy such that teachers need to know how to use Web technology to assist their teaching. This study provides a framework for understanding teachers' Technological Pedagogical Content Knowledge-Web (TPCK-W), while integrating Web technology into…

Lee, Min-Hsien; Tsai, Chin-Chung

2010-01-01

219

SalanderMaps: A rapid overview about felt earthquakes through data mining of web-accesses  

NASA Astrophysics Data System (ADS)

While seismological observatories detect and locate earthquakes based on measurements of the ground motion, they neither know a priori whether an earthquake has been felt by the public nor is it known, where it has been felt. Such information is usually gathered by evaluating feedback reported by the public through on-line forms on the web. However, after a felt earthquake in Switzerland, many people visit the webpages of the Swiss Seismological Service (SED) at the ETH Zurich and each such visit leaves traces in the logfiles on our web-servers. Data mining techniques, applied to these logfiles and mining publicly available data bases on the internet open possibilities to obtain previously unknown information about our virtual visitors. In order to provide precise information to authorities and the media, it would be desirable to rapidly know from which locations these web-accesses origin. The method 'Salander' (Seismic Activitiy Linked to Area codes - Nimble Detection of Earthquake Rumbles) will be introduced and it will be explained, how the IP-addresses (each computer or router directly connected to the internet has a unique IP-address; an example would be 129.132.53.5) of a sufficient amount of our virtual visitors were linked to their geographical area. This allows us to unprecedentedly quickly know whether and where an earthquake was felt in Switzerland. It will also be explained, why the method Salander is superior to commercial so-called geolocation products. The corresponding products of the Salander method, animated SalanderMaps, which are routinely generated after each earthquake with a magnitude of M>2 in Switzerland (http://www.seismo.ethz.ch/prod/salandermaps/, available after March 2013), demonstrate how the wavefield of earthquakes propagates through Switzerland and where it was felt. Often, such information is available within less than 60 seconds after origin time, and we always get a clear picture within already five minutes after origin time. Furthermore, the method allows to detect earthquakes solely on the analysis of accesses to our web-servers. Analyzing more than 170 million web-accesses since 2003, all seismic events within or near Switzerland with magnitudes M>4 and most felt events with magnitudes between 3 and 4 were detected. The current system is very robust, as we only had one false alarm while re-processing the web-access logfiles of the past almost 10 years. We anticipate that this method will produce even faster results in the future as the number of both commercial and private internet users is - according to the statistics of our logfiles - still increasing.

Kradolfer, Urs

2013-04-01

220

A web Accessible Framework for Discovery, Visualization and Dissemination of Polar Data  

NASA Astrophysics Data System (ADS)

A web accessible information framework, currently under development within the Physical Sciences Division of the British Antarctic Survey is described. The datasets accessed are generally heterogeneous in nature from fields including space physics, meteorology, atmospheric chemistry, ice physics, and oceanography. Many of these are returned in near real time over a 24/7 limited bandwidth link from remote Antarctic Stations and ships. The requirement is to provide various user groups - each with disparate interests and demands - a system incorporating a browsable and searchable catalogue; bespoke data summary visualization, metadata access facilities and download utilities. The system allows timely access to raw and processed datasets through an easily navigable discovery interface. Once discovered, a summary of the dataset can be visualized in a manner prescribed by the particular projects and user communities or the dataset may be downloaded, subject to accessibility restrictions that may exist. In addition, access to related ancillary information including software, documentation, related URL's and information concerning non-electronic media (of particular relevance to some legacy datasets) is made directly available having automatically been associated with a dataset during the discovery phase. Major components of the framework include the relational database containing the catalogue, the organizational structure of the systems holding the data - enabling automatic updates of the system catalogue and real-time access to data -, the user interface design, and administrative and data management scripts allowing straightforward incorporation of utilities, datasets and system maintenance.

Kirsch, P. J.; Breen, P.; Barnes, T. D.

2007-12-01

221

Increasing access to terrestrial ecology and remote sensing (MODIS) data through Web services and visualization tools  

NASA Astrophysics Data System (ADS)

In recent years user access to data and information is increasingly handled through tools, services, and applications. Standards-based services have facilitated this development. These service-based methods to access data has boosted the use of data and in increasingly complex ways. The Oak Ridge National Laboratory Distributed Active Archive Center (ORNL DAAC) has taken the approach of service-based access to data and visualization for distribution and visualization of its terrestrial ecology data, including MODIS (Moderate Resolution Imaging Spectroradiometer) remote sensing data products. The MODIS data products are highly useful for field research. The spectral, spatial and temporal characteristics of MODIS products have made them an important data source for analyzing key science questions relating to Earth system processes at multiple spatial and temporal scales. However, MODIS data volume and the complexity in data format make it less usable in some cases. To solve this usability issue, the ORNL DAAC has developed a system that prepares and distributes subsets of selected MODIS land products in a scale and format useful for field researchers. Web and Web service tools provide MODIS subsets in comma-delimited text format and in GIS compatible GeoTIFF format. Users can download and visualize MODIS subsets for a set of pre-defined locations, order MODIS subsets for any land location or automate the process of subset extraction using a SOAP-based Web service. The MODIS tools and services can be extended to support the large volume of data that would be produced by the various decadal survey missions. http://daac.ornl.gov/MODIS . The ORNL DAAC has also created a Web-based Spatial Data Access Tool (SDAT) that enables users to browse, visualize, and download a wide variety of geospatial data in various user-selected spatial/temporal extents, formats, and projections. SDAT is based on Open Geospatial Consortium (OGC) Web service standards that allows users to customize and download data. Users can also visualize the data in Google Earth, explore the metadata, or embed dynamic maps served through SDAT in their custom applications. http://daac.ornl.gov/spatial_data_access.shtml .

Santhana Vannan, S.; Cook, R. B.; Wei, Y.

2012-12-01

222

Using the STOQS Web Application for Access to in situ Oceanographic Data  

NASA Astrophysics Data System (ADS)

Using the STOQS Web Application for Access to in situ Oceanographic Data Mike McCann 7 August 2012 With increasing measurement and sampling capabilities of autonomous oceanographic platforms (e.g. Gliders, Autonomous Underwater Vehicles, Wavegliders), the need to efficiently access and visualize the data they collect is growing. The Monterey Bay Aquarium Research Institute has designed and built the Spatial Temporal Oceanographic Query System (STOQS) specifically to address this issue. The need for STOQS arises from inefficiencies discovered from using CF-NetCDF point observation conventions for these data. The problem is that access efficiency decreases with decreasing dimension of CF-NetCDF data. For example, the Trajectory Common Data Model feature type has only one coordinate dimension, usually Time - positions of the trajectory (Depth, Latitude, Longitude) are stored as non-indexed record variables within the NetCDF file. If client software needs to access data between two depth values or from a bounded geographic area, then the whole data set must be read and the selection made within the client software. This is very inefficient. What is needed is a way to easily select data of interest from an archive given any number of spatial, temporal, or other constraints. Geospatial relational database technology provides this capability. The full STOQS application consists of a Postgres/PostGIS database, Mapserver, and Python-Django running on a server and Web 2.0 technology (jQuery, OpenLayers, Twitter Bootstrap) running in a modern web browser. The web application provides faceted search capabilities allowing a user to quickly drill into the data of interest. Data selection can be constrained by spatial, temporal, and depth selections as well as by parameter value and platform name. The web application layer also provides a REST (Representational State Transfer) Application Programming Interface allowing tools such as the Matlab stoqstoolbox to retrieve data directly from the database. STOQS is an open source software project built upon a framework of free and open source software and is available for anyone to use for making their data more accessible and usable. For more information please see: http://code.google.com/p/stoqs/.; In the above screen grab a user has selected the "mass_concentrtion_of_chlorophyll_in_sea_water" parameter and a time depth range that includes three weeks of AUV missions of just the upper 5 meters.

McCann, M. P.

2012-12-01

223

IEEE 802.11 e contention-based channel access (EDCF) performance evaluation  

Microsoft Academic Search

IEEE 802.11 e medium access control (MAC) is an emerging supplement to the IEEE 802.11 wireless local area network (WLAN) standard to support quality-of-service (QoS). The 802.11e MAC is based on both centrally-controlled and contention-based channel accesses. In this paper, we evaluate the contention-based channel access mechanism, called enhanced distributed coordination function (EDCF), in comparison with the 802.11 legacy MAC.

Sunghyun Choi; Javier del Prado; Sai Shankar N; Stefan Mangold

2003-01-01

224

Multi-lingual Detection of Web Terrorist Content  

Microsoft Academic Search

The role of the Internet in the infrastructure of the global terrorist organizations is increasing dramatically. Beyond propaganda,\\u000a the WWW is being heavily used for practical training, fundraising, communication, and other purposes. Terrorism experts are\\u000a interested in identifying who is behind the material posted on terrorist web sites and online forums and what links they have\\u000a to active terror groups.

Mark Last; Alex Markov; Abraham Kandel

2008-01-01

225

Content Sniffer Based Load Distribution in a Web Server Cluster  

Microsoft Academic Search

SUMMARY Recently, layer-4 (L4) switches have been widely used as load balancing front-end routers for Web server clusters.The typical L4 switch attempts to balance load among the servers by estimating load using the load metrics measured in the front-end and\\/or the servers.However, insufficient load metrics, measurement overhead, and feedback delay often cause misestimate of server load.This may incur significant dynamic

Jongwoong HYUN; Inbum JUNG; Joonwon LEE; Seungryoul MAENG

2003-01-01

226

Efficient Term Cloud Generation for Streaming Web Content  

Microsoft Academic Search

\\u000a Large amounts of information are posted daily on the Web, such as articles published online by traditional news agencies or\\u000a blog posts referring to and commenting on various events. Although the users sometimes rely on a small set of trusted sources\\u000a from which to get their information, they often also want to get a wider overview and glimpse of what

Odysseas Papapetrou; George Papadakis; Ekaterini Ioannou; Dimitrios Skoutas

2010-01-01

227

Content-based Multimedia Data Management and Efficient Remote Access  

Microsoft Academic Search

The recent availability of low-cost powerful workstationsand PCs has caused a staggering increase in thequantity and quality of digital data, which includesstill images, video clips, and sound. The problem ofmanaging such a large volume of information has becomevery important for researchers who need efficientand simple access to the data. In this paper wepresent a framework for managing the storage, analysis,and

Jim Griffioen; Brent Seales; Raj Yavatkar

228

Exploiting smart antennas in wireless mesh networks using contention access  

Microsoft Academic Search

Smart antennas can increase the capacity of mesh networks and reduce the susceptibility of individual nodes to interception and jamming, but creating the conditions that allow them to be effective is difficult. In this article we provide a broad review of antenna technologies and identify their capabilities and limitations. We review mechanisms used by medium access control schemes to arbitrate

JOHN A. STINE

2006-01-01

229

The Readability of Information Literacy Content on Academic Library Web Sites  

ERIC Educational Resources Information Center

This article reports on a study addressing the readability of content on academic libraries' Web sites, specifically content intended to improve users' information literacy skills. Results call for recognition of readability as an evaluative component of text in order to better meet the needs of diverse user populations. (Contains 8 tables.)

Lim, Adriene

2010-01-01

230

Prototype and Evaluation of AutoHelp: A Case-based, Web-accessible Help Desk System for EOSDIS.  

National Technical Information Service (NTIS)

AutoHelp is a case-based, Web-accessible help desk for users of the EOSDIS. Its uses a combination of advanced computer and Web technologies, knowledge-based systems tools, and cognitive engineering to offload the current, person-intensive, help desk faci...

C. M. Mitchell D. A. Thurman

1999-01-01

231

Employing WebGL to develop interactive stereoscopic 3D content for use in biomedical visualization  

NASA Astrophysics Data System (ADS)

Web Graphics Library (WebGL), the forthcoming web standard for rendering native 3D graphics in a browser, represents an important addition to the biomedical visualization toolset. It is projected to become a mainstream method of delivering 3D online content due to shrinking support for third-party plug-ins. Additionally, it provides a virtual reality (VR) experience to web users accommodated by the growing availability of stereoscopic displays (3D TV, desktop, and mobile). WebGL's value in biomedical visualization has been demonstrated by applications for interactive anatomical models, chemical and molecular visualization, and web-based volume rendering. However, a lack of instructional literature specific to the field prevents many from utilizing this technology. This project defines a WebGL design methodology for a target audience of biomedical artists with a basic understanding of web languages and 3D graphics. The methodology was informed by the development of an interactive web application depicting the anatomy and various pathologies of the human eye. The application supports several modes of stereoscopic displays for a better understanding of 3D anatomical structures.

Johnston, Semay; Renambot, Luc; Sauter, Daniel

232

From Interface To Content: Translingual Access And Delivery Of On-Line Information  

Microsoft Academic Search

This paper describes our initial implementation of a systemto provide world-wide weather information over thetelephone. The information is gathered from several differentsites on the Web, preprocessed, and cached locallyinto a relational database to make access both fast andselective. Our natural language tools, originally developedfor processing user queries, are used here for understandingcontent, and for subsequently translating it intolanguages other than

Victor Zue; Stephanie Seneff; James Glass; Lee Hetherington; Edward Hurley; Helen Meng; Christine Pao; Joseph Polifroni; Rafael Schloming; Philipp Schmid

1996-01-01

233

Sanjeevini: a freely accessible web-server for target directed lead molecule discovery  

PubMed Central

Background Computational methods utilizing the structural and functional information help to understand specific molecular recognition events between the target biomolecule and candidate hits and make it possible to design improved lead molecules for the target. Results Sanjeevini represents a massive on-going scientific endeavor to provide to the user, a freely accessible state of the art software suite for protein and DNA targeted lead molecule discovery. It builds in several features, including automated detection of active sites, scanning against a million compound library for identifying hit molecules, all atom based docking and scoring and various other utilities to design molecules with desired affinity and specificity against biomolecular targets. Each of the modules is thoroughly validated on a large dataset of protein/DNA drug targets. Conclusions The article presents Sanjeevini, a freely accessible user friendly web-server, to aid in drug discovery. It is implemented on a tera flop cluster and made accessible via a web-interface at http://www.scfbio-iitd.res.in/sanjeevini/sanjeevini.jsp. A brief description of various modules, their scientific basis, validation, and how to use the server to develop in silico suggestions of lead molecules is provided.

2012-01-01

234

Semantics-Based Framework for Personalized Access to TV Content: The iFanzy Use Case  

NASA Astrophysics Data System (ADS)

The ICT landscape is developing into a highly-interactive distributed environment in which people interact with multiple devices (e.g. portable devices such as mobile phones and home equipment such as TV's) and multiple applications (e.g. computer programs such as Web browsers and dedicated Web services) [1]. Globally, the industry is being driven by the shift away from old models - from physical space to digital space. New methods emerge for getting content such as TV programs via the Web. Almost half of the people want to watch TV content on their PC's; they want to make a bridge between a TV and a PC, perhaps even sitting in a home office [2]. The information overload is enormous and the content presented is hardly adapted to the prior knowledge, to the preferences and to the current situation of the user.

Bellekens, Pieter; Aroyo, Lora; Houben, Geert-Jan; Kaptein, Annelies; van der Sluijs, Kees

235

A Web content based data mining for car consumption preference in China  

Microsoft Academic Search

This paper introduces an incremental FP-Growth approach for Web content based data mining and its application in solving a real world problem The problem is solved in the following ways. Firstly, we obtain the semi-structured data from the Web pages of Chinese car market and structure them and save them in local database. Secondly, we use an incremental FP-Growth algorithm

Xiaoshu Hang; Honghua Dai; Youhua Zhangb

2003-01-01

236

The impacts of problem gambling on concerned significant others accessing web-based counselling.  

PubMed

The 'concerned significant others' (CSOs) of people with problem gambling frequently seek professional support. However, there is surprisingly little research investigating the characteristics or help-seeking behaviour of these CSOs, particularly for web-based counselling. The aims of this study were to describe the characteristics of CSOs accessing the web-based counselling service (real time chat) offered by the Australian national gambling web-based counselling site, explore the most commonly reported CSO impacts using a new brief scale (the Problem Gambling Significant Other Impact Scale: PG-SOIS), and identify the factors associated with different types of CSO impact. The sample comprised all 366 CSOs accessing the service over a 21month period. The findings revealed that the CSOs were most often the intimate partners of problem gamblers and that they were most often females aged under 30years. All CSOs displayed a similar profile of impact, with emotional distress (97.5%) and impacts on the relationship (95.9%) reported to be the most commonly endorsed impacts, followed by impacts on social life (92.1%) and finances (91.3%). Impacts on employment (83.6%) and physical health (77.3%) were the least commonly endorsed. There were few significant differences in impacts between family members (children, partners, parents, and siblings), but friends consistently reported the lowest impact scores. Only prior counselling experience and Asian cultural background were consistently associated with higher CSO impacts. The findings can serve to inform the development of web-based interventions specifically designed for the CSOs of problem gamblers. PMID:24813552

Dowling, Nicki A; Rodda, Simone N; Lubman, Dan I; Jackson, Alun C

2014-08-01

237

Fast, Progressive Loading of Binary-Encoded Declarative-3D Web Content.  

PubMed

Until recently, a major drawback of declarative-3D approaches for the Web was the encoding of scene-graph-related structured data along with a text-based description of unstructured vertex data. Loading times were long, and 3D Web content wasn't available until the full page had completely loaded. To overcome this limitation requires external mesh data containers that are referenced in the scene description. In particular, sequential image geometry containers and explicit binary containers align well with GPU buffer structures, thus enabling fast decoding and GPU uploads. Furthermore, progressive binary geometry enables simple, yet highly progressive transmission of arbitrary mesh data on the Web. PMID:24808079

Limper, M; Jung, Y; Behr, J; Sturm, T; Franke, T; Schwenk, K; Kuijper, A

2013-01-01

238

Content Management: Managing Components for the Web and Other Publishing Environments; Understanding Content Management; Information Architects and Their Central Role in Content Management; Fulfilling the Promise of Content Management; The Content Management Market: What You Really Need To Know.  

ERIC Educational Resources Information Center

Includes four articles that address issues concerning content management (CM) of organizations or Web sites. Highlights include systems for managing content; computer software-based systems; the role of information architects; CM and publishing; and evaluation criteria for CM implementation via vendors, including pricing and support. (LRW)

Boiko, Bob, Ed.; Warren, Rita; Kartchner, Chris; Emery, Priscilla

2001-01-01

239

The Virtual Ramp to the Equivalent Experience in the Virtual Museum: Accessibility to Museums on the Web.  

ERIC Educational Resources Information Center

This paper argues that a range of forms and modalities of resources should be provided to ensure accessibility and richness on the World Wide Web for all users. Based on experiences in developing virtual exhibitions of Quinkan Aboriginal Rock Art, the authors present a brief overview of the technology available for accessibility. Then they explore…

Nevile, Liddy; McCathieNevile, Charles

240

Using a Java Web-based Graphical User Interface to access the SOHO Data Arch ive  

NASA Astrophysics Data System (ADS)

This paper presents the architecture of a Java web-based graphical interface dedicated to the access of the SOHO Data archive. This application allows local and remote users to search in the SOHO data catalog and retrieve the SOHO data files from the archive. It has been developed at MEDOC (Multi-Experiment Data and Operations Centre), located at the Institut d'Astrophysique Spatiale (Orsay, France), which is one of the European Archives for the SOHO data. This development is part of a joint effort between ESA, NASA and IAS in order to implement long term archive systems for the SOHO data. The software architecture is built as a client-server application using Java language and SQL above a set of components such as an HTTP server, a JDBC gateway, a RDBMS server, a data server and a Web browser. Since HTML pages and CGI scripts are not powerful enough to allow user interaction during a multi-instrument catalog search, this type of requirement enforces the choice of Java as the main language. We also discuss performance issues, security problems and portability on different Web browsers and operating syste ms.

Scholl, I.; Girard, Y.; Bykowski, A.

241

Policies and Procedures for Accessing Archived NASA Lunar Data via the Web  

NASA Technical Reports Server (NTRS)

The National Space Science Data Center (NSSDC) was established by NASA to provide for the preservation and dissemination of scientific data from NASA missions. This paper describes the policies specifically related to lunar science data. NSSDC presently archives 660 lunar data collections. Most of these data (423 units) are stored offline in analog format. The remainder of this collection consists of magnetic tapes and discs containing approximately 1.7 TB of digital lunar data. The active archive for NASA lunar data is the Planetary Data System (PDS). NSSDC has an agreement with the PDS Lunar Data Node to assist in the restoration and preparation of NSSDC-resident lunar data upon request for access and distribution via the PDS archival system. Though much of NSSDC's digital store also resides in PDS, NSSDC has many analog data collections and some digital lunar data sets that are not in PDS. NSSDC stands ready to make these archived lunar data accessible to both the research community and the general public upon request as resources allow. Newly requested offline lunar data are digitized and moved to near-line storage devices called digital linear tape jukeboxes. The data are then packaged and made network-accessible via FTP for the convenience of a growing segment of the user community. This publication will 1) discuss the NSSDC processes and policies that govern how NASA lunar data is preserved, restored, and made accessible via the web and 2) highlight examples of special lunar data requests.

James, Nathan L.; Williams, David R.

2011-01-01

242

Providing web-based tools for time series access and analysis  

NASA Astrophysics Data System (ADS)

Time series information is widely used in environmental change analyses and is also an essential information for stakeholders and governmental agencies. However, a challenging issue is the processing of raw data and the execution of time series analysis. In most cases, data has to be found, downloaded, processed and even converted in the correct data format prior to executing time series analysis tools. Data has to be prepared to use it in different existing software packages. Several packages like TIMESAT (Jönnson & Eklundh, 2004) for phenological studies, BFAST (Verbesselt et al., 2010) for breakpoint detection, and GreenBrown (Forkel et al., 2013) for trend calculations are provided as open-source software and can be executed from the command line. This is needed if data pre-processing and time series analysis is being automated. To bring both parts, automated data access and data analysis, together, a web-based system was developed to provide access to satellite based time series data and access to above mentioned analysis tools. Users of the web portal are able to specify a point or a polygon and an available dataset (e.g., Vegetation Indices and Land Surface Temperature datasets from NASA MODIS). The data is then being processed and provided as a time series CSV file. Afterwards the user can select an analysis tool that is being executed on the server. The final data (CSV, plot images, GeoTIFFs) is visualized in the web portal and can be downloaded for further usage. As a first use case, we built up a complimentary web-based system with NASA MODIS products for Germany and parts of Siberia based on the Earth Observation Monitor (www.earth-observation-monitor.net). The aim of this work is to make time series analysis with existing tools as easy as possible that users can focus on the interpretation of the results. References: Jönnson, P. and L. Eklundh (2004). TIMESAT - a program for analysing time-series of satellite sensor data. Computers and Geosciences 30, 833-845. Verbesselt, J., R. Hyndman, G. Newnham and D. Culvenor (2010). Detecting trend and seasonal changes in satellite image time series. Remote Sensing of Environment, 114, 106-115. DOI: 10.1016/j.rse.2009.08.014 Forkel, M., N. Carvalhais, J. Verbesselt, M. Mahecha, C. Neigh and M. Reichstein (2013). Trend Change Detection in NDVI Time Series: Effects of Inter-Annual Variability and Methodology. Remote Sensing 5, 2113-2144.

Eberle, Jonas; Hüttich, Christian; Schmullius, Christiane

2014-05-01

243

An evaluation of patient access to their electronic medical records via the World Wide Web.  

PubMed

This paper describes initial experience with the Web-based Patient Clinical Information System (PatCIS). The system was designed to serve as a framework for the integration of applications that help patients access their electronic medical record, add data to their record, review on-line health information, and apply their own clinical data (automatically) to guideline programs that offer health advice. The architecture supports security functions and records user activities, relieving application developers from concerns about safe information practices and the evaluation process. PatCIS is being used to study the social and cognitive impact of allowing patients to have access to their health records via the Web. To date, PatCIS has grown to include 15 clinical functions and 4 dynamic links to literature (called infobuttons). Eleven patients have been enrolled since April, 1999; five have been active users. Experience shows that the PatCIS architecture supports application integration while providing adequate security and evaluation functions. Initial caution with the patient enrollment process has limited recruitment and, consequently, usage. However, experience thus far suggests that PatCIS has good usability and utility. No adverse events, including undesirable impact on doctor-patient interactions, have been reported. There do not appear to be any technical impediments to scaling up the enrollment to continue to observe patient usage. PMID:11079863

Cimino, J J; Li, J; Mendonça, E A; Sengupta, S; Patel, V L; Kushniruk, A W

2000-01-01

244

An evaluation of patient access to their electronic medical records via the World Wide Web.  

PubMed Central

This paper describes initial experience with the Web-based Patient Clinical Information System (PatCIS). The system was designed to serve as a framework for the integration of applications that help patients access their electronic medical record, add data to their record, review on-line health information, and apply their own clinical data (automatically) to guideline programs that offer health advice. The architecture supports security functions and records user activities, relieving application developers from concerns about safe information practices and the evaluation process. PatCIS is being used to study the social and cognitive impact of allowing patients to have access to their health records via the Web. To date, PatCIS has grown to include 15 clinical functions and 4 dynamic links to literature (called infobuttons). Eleven patients have been enrolled since April, 1999; five have been active users. Experience shows that the PatCIS architecture supports application integration while providing adequate security and evaluation functions. Initial caution with the patient enrollment process has limited recruitment and, consequently, usage. However, experience thus far suggests that PatCIS has good usability and utility. No adverse events, including undesirable impact on doctor-patient interactions, have been reported. There do not appear to be any technical impediments to scaling up the enrollment to continue to observe patient usage.

Cimino, J. J.; Li, J.; Mendonca, E. A.; Sengupta, S.; Patel, V. L.; Kushniruk, A. W.

2000-01-01

245

Usage and Effectiveness of a Fully Automated, Open-Access, Spanish Web-Based Smoking Cessation Program: Randomized Controlled Trial  

PubMed Central

Background The Internet is an optimal setting to provide massive access to tobacco treatments. To evaluate open-access Web-based smoking cessation programs in a real-world setting, adherence and retention data should be taken into account as much as abstinence rate. Objective The objective was to analyze the usage and effectiveness of a fully automated, open-access, Web-based smoking cessation program by comparing interactive versus noninteractive versions. Methods Participants were randomly assigned either to the interactive or noninteractive version of the program, both with identical content divided into 4 interdependent modules. At baseline, we collected demographic, psychological, and smoking characteristics of the smokers self-enrolled in the Web-based program of Universidad Nacional de Educación a Distancia (National Distance Education University; UNED) in Madrid, Spain. The following questionnaires were administered: the anxiety and depression subscales from the Symptom Checklist-90-Revised, the 4-item Perceived Stress Scale, and the Heaviness of Smoking Index. At 3 months, we analyzed dropout rates, module completion, user satisfaction, follow-up response rate, and self-assessed smoking abstinence. Results A total of 23,213 smokers were registered, 50.06% (11,620/23,213) women and 49.94% (11,593/23,213) men, with a mean age of 39.5 years (SD 10.3). Of these, 46.10% (10,701/23,213) were married and 34.43% (7992/23,213) were single, 46.03% (10,686/23,213) had university education, and 78.73% (18,275/23,213) were employed. Participants smoked an average of 19.4 cigarettes per day (SD 10.3). Of the 11,861 smokers randomly assigned to the interactive version, 2720 (22.93%) completed the first module, 1052 (8.87%) the second, 624 (5.26%) the third, and 355 (2.99%) the fourth. Completion data was not available for the noninteractive version (no way to record it automatically). The 3-month follow-up questionnaire was completed by 1085 of 23,213 enrolled smokers (4.67%). Among them, 406 (37.42%) self-reported not smoking. No difference between groups was found. Assuming missing respondents continued to smoke, the abstinence rate was 1.74% (406/23,213), in which 22,678 were missing respondents. Among follow-up respondents, completing the 4 modules of the intervention increased the chances of smoking cessation (OR 1.95, 95% CI 1.27-2.97, P<.001), as did smoking 30 minutes (OR 1.58, 95% CI 1.04-2.39, P=.003) or 1 hour after waking (OR 1.93, 95% CI 1.27-2.93, P<.001) compared to smoking within the first 5 minutes after waking. Conclusions The findings suggest that the UNED Web-based smoking cessation program was very accessible, but a high level of attrition was confirmed. This could be related to the ease of enrollment, its free character, and the absence of direct contact with professionals. It is concluded that, in practice, the greater the accessibility to the program, the lower the adherence and retention. Professional support from health services and the payment of a reimbursable fee could prevent high rates of attrition.

2014-01-01

246

Food and Beverage Brands that Market to Children and Adolescents on the Internet: A Content Analysis of Branded Web Sites  

ERIC Educational Resources Information Center

Objective: To identify food and beverage brand Web sites featuring designated children's areas, assess marketing techniques present on those industry Web sites, and determine nutritional quality of branded food items marketed to children. Design: Systematic content analysis of food and beverage brand Web sites and nutrient analysis of food and…

Henry, Anna E.; Story, Mary

2009-01-01

247

A global process to access documents' contents from a geographical point of view  

Microsoft Academic Search

Local cultural heritage document repositories are characterized by contents strongly attached to a territory (i.e. Geographical references). The user must be able to con- sider such repositories according to a focus, which takes into account his\\/her geo- graphical interests, and which allows one to access the relevant document's contents from a geographical point of view. This paper presents the Virtual

Mauro Gaio; Christian Sallaberry; Patrick Etcheverry; Christophe Marquesuzaà; Julien Lesbegueries

2008-01-01

248

Fobs: an open source object-oriented library for accessing multimedia content  

Microsoft Academic Search

The exceptionally large nature of multimedia content has motivated the creation of many different compression algorithms and encapsulation formats to make its transportation and storage feasible. Developers of multimedia applications have to deal repeatedly with the massive number of forms in which content is present, turning the single task of media access into an unnecessary challenge. The open source project

Jose San Pedro

2008-01-01

249

Africa Online: A Web- and Content-Based English Language Teaching Course.  

ERIC Educational Resources Information Center

Describes a distance learning course titled "Africa Online: English Language Teaching Using Web Resources to Develop Content-Based Materials for the Classroom." Gives an overview of the course rationale, planning, implementation, outcomes, and future considerations for courses of this kind. (Author/VWL)

Opp-Beckman, Leslie

2002-01-01

250

Real-time, location-aware collaborative filtering of web content  

Microsoft Academic Search

In this paper we describe the collaborative filtering feature of a location-aware, Web content recommendation service, called Gloe. The main purpose of our collaborative filtering solution is to increase the diversity of recommendations and to thereby mitigate popularity bias. The key challenge is to filter candidate suggestions in real-time, with minimal data mining and model building overhead. There is an

Thomas Sandholm; Hang Ung

2011-01-01

251

Evaluating Strategic IT Investments: An Assessment of Investment Alternatives for a Web Content Management System  

Microsoft Academic Search

As widely recognized in the literature, information technology (IT) investments have several special characteristics that make assessing their costs and benefits complicated. Here, we address the problem of evaluating a web content management system for both internal and external use. The investment is presently undergoing an evaluation process in a multinational company. We aim at making explicit the desired benefits

Petri Hallikainen; Hannu Kivijärvi; Kari Nurmimäki

2002-01-01

252

A study of user experiences mediated by nomadic web content in a museum  

Microsoft Academic Search

How should nomadic web content be designed to improve and transform user experiences in a hands-on museum? In this study, 15 users were studied while using an electronic guidebook designed to augment user experiences via wireless technologies at the Exploratorium, an interactive science museum. Several recurring themes emerged from the analysis, such as users' sense of isolation and users' attempts

S. Hsi

2003-01-01

253

Mirror, Mirror on the Web: A Study of Host Pairs with Replicated Content  

Microsoft Academic Search

Two previous studies, one done at Stanford in 1997 based on data collected by the Google search engine, and one done at Digital in 1996 based on AltaVista data, revealed that almost a third of the Web consists of duplicate pages. Both studies identified mirroring, that is, the systematic replication of content over a pair of hosts, as the principal

Krishna Bharat; Andrei Z. Broder

1999-01-01

254

Computational Trust in Web Content Quality: A Comparative Evalutation on the Wikipedia Project  

Microsoft Academic Search

The problem of identifying useful and trustworthy information on the World Wide Web is becoming increasingly acute as new tools such as wikis and blogs simplify and democratize publication. It is not hard to predict that in the future the direct reliance on this material will expand and the problem of evaluating the trustworthiness of this kind of content become

Pierpaolo Dondio; Stephen Barrett

2007-01-01

255

TODWEB: training-less ontology based deep web source classification  

Microsoft Academic Search

Today, deep web comprises of a large part of web contents. Because of this large volume of data, the technologies related to deep web have gained larger attention in recent years. Deep web mostly comprises of online domain specific databases, which are accessed by using web query interfaces. These highly relevant domain specific databases are more suitable for satisfying the

Umara Noor; Zahid Rashid; Azhar Rauf

2011-01-01

256

The NORM technology connection web site : streamlined access to NORM-related service company and regulatory information.  

SciTech Connect

Argonne National Laboratory has developed an Internet web site providing access to critical information needed to support decisions on the management and disposal of wastes containing naturally occurring radioactive material (NORM). The NORM Technology Connection web site provides current information on (1) service companies that provide support on NORM issues (e.g., site characterization and remediation, sample analysis, radiation safety training, disposal) and (2) existing applicable NORM regulations and guidelines. A third element of the site is an electronic mail list that allows users to post or respond to questions about the management of NORM. Development of the NORM Technology Connection web site was funded by the U.S. Department of Energy, Office of Fossil Energy. It is hosted and maintained by the Interstate Oil and Gas Compact Commission. The web site is publicly available; access is free, as is participation by any of the service companies.

Smith, K. P.; Richmond, P.; LePoire, D. J.; Arnish, J. J.; Johnson, R.

2000-11-08

257

A web accessible data management system for the Hanford 300 Area IFRC  

NASA Astrophysics Data System (ADS)

The Hanford 300 Area Integrated Field Research Challenge is a multidisciplinary,multi institutional program funded by the Department of Energy - Office of Science. The objective of this program is to develop better models for uranium contamination in the 300 Area, a part of the Hanford site. This is achieved through a combination of large field scale experiments in a highly instrumented part of the 300 Area and accompanying laboratory studies and modeling and data analysis efforts. As part of the 300 Area IFRC large amounts of data are being generated - including but not limited to analysis data on over 1100 cores and samples obtained from the wellfield, geophysical and geological logs, time lapse electrical geophysical and temperature data, geochemical and hydrological data from observation wells and numerous model data. One of the challenges for the 300 Area IFRC is to ensure that all data generated as part of the IFRC is captured for analysis by the IFRC team and future scientists. In addition, tools are required facilitating the location, assessment and downloading of data. In order to meet this challenge a web accessible data management system was put in place. This system (which was built using Zend Framework, an open source, object-oriented web application framework) provides access to all data collected for the IFRC. Automated data harvesters keep the database up to date. Where available, the system uses standards for data models and access tools such that development requirements are minimized. By integrating the data access tools with Google Maps users can quickly locate different data sources. Data can be visualized on the fly in both graphs and animations (which are generated through webservice calls to JFreeChart). Through integration of the Zend Framework Structure with phpBB (Forum software) we provide a simple user management system which allows both forum discussions This system is stil being expanded. For instance, we are currently developing functionality for interactive visualization of modeling results (which will also allow for comparison between model results and field data). However, in it's current form users already have access to a wealth of data on the 300 area IFRC which significantly facilitates and speeds up research efforts.

Versteeg, R. J.; Henrie, A.; Ahir, S.; Lichtner, P. C.; Rockhold, M. L.; Murray, C. J.

2009-12-01

258

mzServer: Web-based Programmatic Access for Mass Spectrometry Data Analysis*  

PubMed Central

Continued progress toward systematic generation of large-scale and comprehensive proteomics data in the context of biomedical research will create project-level data sets of unprecedented size and ultimately overwhelm current practices for results validation that are based on distribution of native or surrogate mass spectrometry files. Moreover, the majority of proteomics studies leverage discovery-mode MS/MS analyses, rendering associated data-reduction efforts incomplete at best, and essentially ensuring future demand for re-analysis of data as new biological and technical information become available. Based on these observations, we propose to move beyond the sharing of interpreted spectra, or even the distribution of data at the individual file or project level, to a system much like that used in high-energy physics and astronomy, whereby raw data are made programmatically accessible at the site of acquisition. Toward this end we have developed a web-based server (mzServer), which exposes our common API (mzAPI) through very intuitive (RESTful) uniform resource locators (URL) and provides remote data access and analysis capabilities to the research community. Our prototype mzServer provides a model for lab-based and community-wide data access and analysis.

Askenazi, Manor; Webber, James T.; Marto, Jarrod A.

2011-01-01

259

Registered Nurses' Thoughts on Blended Learning in a Postgraduate Course in Cancer care-Content Analyses of Web Surveys and a Focus Group Interview.  

PubMed

Purpose of the research was to describe registered nurses' (RNs) (n?=?53) thoughts on the blended learning format in a 'specialist nursing programme in cancer care'. The study was conducted in autumn 2007 and 2008. A content analysis of answers to open-ended questions in a web-based questionnaire and a focus group interview were carried out. The analysis revealed that the RNs appreciated blended learning. The web lectures facilitated learning and gave RNs access to the education at any time. However, according to the RNs, knowledge is gained through interaction between RNs and teachers, and this aspect needed to be improved. The RNs also thought that the content of the seminars on campus should focus on evidence-based nursing knowledge and practical skills, not just taught as stable facts and procedures. The result from the present study could help to improve the design and content of advanced nursing courses using a blended learning format. PMID:24338502

Arving, Cecilia; Wadensten, Barbro; Johansson, Birgitta

2014-06-01

260

Internet Food Marketing Strategies Aimed at Children and Adolescents: A Content Analysis of Food and Beverage Brand Web Sites  

Microsoft Academic Search

Americans are spending an increasing amount of time using “new media” like the Internet. There has been little research examining food and beverage Web sites’ content and marketing practices, especially those that attract children and adolescents. The purpose of this study was to conduct a content analysis of food- and beverage-brand Web sites and the marketing techniques and advertising strategies

Kristi Weber; Mary Story; Lisa Harnack

2006-01-01

261

The Web-Based Delphi Research Technique as a Method for Content Validation in HRD and Adult Education Research  

ERIC Educational Resources Information Center

A Web-based Delphi process can be used to answer difficult questions, compile a body of knowledge from experts, or solve a problem or establish content validity. Because of its more qualitative online discussion environment, a Web-based Delphi procedure has the potential to offer a more rigorous validation of HRD-related content than traditional…

Colton, Sharon; Hatcher, Tim

2004-01-01

262

iDrug: a web-accessible and interactive drug discovery and design platform  

PubMed Central

Background The progress in computer-aided drug design (CADD) approaches over the past decades accelerated the early-stage pharmaceutical research. Many powerful standalone tools for CADD have been developed in academia. As programs are developed by various research groups, a consistent user-friendly online graphical working environment, combining computational techniques such as pharmacophore mapping, similarity calculation, scoring, and target identification is needed. Results We presented a versatile, user-friendly, and efficient online tool for computer-aided drug design based on pharmacophore and 3D molecular similarity searching. The web interface enables binding sites detection, virtual screening hits identification, and drug targets prediction in an interactive manner through a seamless interface to all adapted packages (e.g., Cavity, PocketV.2, PharmMapper, SHAFTS). Several commercially available compound databases for hit identification and a well-annotated pharmacophore database for drug targets prediction were integrated in iDrug as well. The web interface provides tools for real-time molecular building/editing, converting, displaying, and analyzing. All the customized configurations of the functional modules can be accessed through featured session files provided, which can be saved to the local disk and uploaded to resume or update the history work. Conclusions iDrug is easy to use, and provides a novel, fast and reliable tool for conducting drug design experiments. By using iDrug, various molecular design processing tasks can be submitted and visualized simply in one browser without installing locally any standalone modeling softwares. iDrug is accessible free of charge at http://lilab.ecust.edu.cn/idrug.

2014-01-01

263

Integrating Web-based technology into distance education for nurses in China: computer and Internet access and attitudes.  

PubMed

To increase continuing education accessibility, nurses around the world are turning to Web-based instruction. However, for Internet education to be successful, particularly in developing countries, nurses must have access to computers and the Internet as well as positive attitudes toward this form of learning. As part of a distance education project for nurses of the Tianjin Municipality in China, a survey of nurses was conducted to examine their sources of professional knowledge as well as their computer and Internet access and attitudes. The attitudes of the nurses were generally positive, and there was evidence of rapidly increasing use of and access to computers and the Internet. This article reports the results of that survey and their implications for Web-based teaching of Chinese nurses. PMID:14504603

Cragg, C E Betty; Edwards, Nancy; Yue, Zhao; Xin, Song Li; Hui, Zou Dao

2003-01-01

264

Creating an Interactive Web Application for Providing Access to Full-Text Electronic Journals from Any Location  

Microsoft Academic Search

This workshop focused on the process of creating an interactive World Wide Web application that offers patrons the ability to access and retrieve full-text journal articles from nearly 6,400 unique journal titles, which are delivered to their computer desktops, without geographic constraints. Technical and non-technical issues involving electronic journals, Microsoft Access, Active Server Pages (ASP), proxy servers and URL rewriters

John W. Felts Jr.; Rachel L. Frick Recorder

2001-01-01

265

World Wide Web Access to Fluid Inclusion Data for Computational Modelling and Simulation  

NASA Astrophysics Data System (ADS)

Accurate constraints on the chemistry of hydrothermal fluids are critical in our capacity to computationally model and simulate how ore deposits form. To maximize results and subsequent interpretation the fluid inclusion populations should be fully characterized using standardised observational and processing techniques. A Virtual Centre for Geofluids and Thermodynamic Data, which includes the fluid inclusion (FIncs) system, has been established to achieve this. The FIncs system is designed to pull together fluid inclusion data from many individual, often disparate studies. The FIncs database and web applications allow researchers to search and retrieve fluid inclusion data and images via a web browser interface. The database will help standardise the way fluid inclusion data and associated metadata are stored. Furthermore, it follows the principles outlined by the Open Geospatial Consortium (OGC) for the Observation and Measurement application schema. It is tightly coupled to enable formalisation of the observations and measurements made on fluid inclusions, and to standardise how these measurements are processed to achieve consistent constraints for geochemical models. FIncs uses both domain factual knowledge and problem-solving knowledge by providing a choice of models (equations of state) for obtaining additional fluid properties via a web-based calculator, which allows researchers to calculate isochoric T&P values and other chemical and physical properties (e.g. salinity, density, etc.). This method has the benefit of ensuring that all derived data are produced and standardised by a selected set of routines. It also enables data from multiple sources to be quickly reprocessed by new routines as they become available and are added to the database toolkit. The database is being developed as an "open" project, which intends to bring together researchers interested in the properties of geological fluids or fluid inclusions. The ultimate goal of the Virtual Centre for Geofluids information system is to provide machine-to-machine (software-to-software) data readability, enabling more or less seamless integration of different datasets and computer codes. In future, users' applications will be able to access the system as web-services using XML.

Mernagh, T. P.; Bastrakov, E.; Percival, D.; Girvan, S.; Wyborn, L. A.

2007-12-01

266

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

267

Setting Access Permission through Transitive Relationship in Web-based Social Networks  

NASA Astrophysics Data System (ADS)

The rising popularity of various social networking websites has created a huge problem on Internet privacy. Although it is easy to post photos, comments, opinions on some events, etc. on the Web, some of these data (such as a person’s location at a particular time, criticisms of a politician, etc.) are private and should not be accessed by unauthorized users. Although social networks facilitate sharing, the fear of sending sensitive data to a third party without knowledge or permission of the data owners discourages people from taking full advantage of some social networking applications. We exploit the existing relationships on social networks and build a ‘‘trust network’’ with transitive relationship to allow controlled data sharing so that the privacy and preferences of data owners are respected. The trust network linking private data owners, private data requesters, and intermediary users is a directed weighted graph. The permission value for each private data requester can be automatically assigned in this network based on the transitive relationship. Experiments were conducted to confirm the feasibility of constructing the trust network from existing social networks, and to assess the validity of permission value assignments in the query process. Since the data owners only need to define the access rights of their closest contacts once, this privacy scheme can make private data sharing easily manageable by social network participants.

Hong, Dan; Shen, Vincent Y.

268

An Easily Accessible Web-Based Minimization Random Allocation System for Clinical Trials  

PubMed Central

Background Minimization as an adaptive allocation technique has been recommended in the literature for use in randomized clinical trials. However, it remains uncommonly used due in part to a lack of easily accessible implementation tools. Objective To provide clinical trialists with a robust, flexible, and readily accessible tool for implementing covariate-adaptive biased-coin randomization. Methods We developed a Web-based random allocation system, MinimRan, that applies Pocock–Simon (for trials with 2 or more arms) and 2-way (currently limited to 2-arm trials) minimization methods for trials using only categorical prognostic factors or the symmetric Kullback–Leibler divergence minimization method for trials (currently limited to 2-arm trials) using continuous prognostic factors with or without categorical factors, in covariate-adaptive biased-coin randomization. Results In this paper, we describe the system’s essential statistical and computer programming features and provide as an example the randomization results generated by it in a recently completed trial. The system can be used in single- and double-blind trials as well as single-center and multicenter trials. Conclusions We expect the system to facilitate the translation of the 3 validated random allocation methods into broad, efficient clinical research practice.

Xiao, Lan; Huang, Qiwen; Yank, Veronica

2013-01-01

269

A web accessible scientific workflow system for vadoze zone performance monitoring: design and implementation examples  

NASA Astrophysics Data System (ADS)

Long term performance monitoring has been identified by DOE, DOD and EPA as one of the most challenging and costly elements of contaminated site remedial efforts. Such monitoring should provide timely and actionable information relevant to a multitude of stakeholder needs. This information should be obtained in a manner which is auditable, cost effective and transparent. Over the last several years INL staff has designed and implemented a web accessible scientific workflow system for environmental monitoring. This workflow environment integrates distributed, automated data acquisition from diverse sensors (geophysical, geochemical and hydrological) with server side data management and information visualization through flexible browser based data access tools. Component technologies include a rich browser-based client (using dynamic javascript and html/css) for data selection, a back-end server which uses PHP for data processing, user management, and result delivery, and third party applications which are invoked by the back-end using webservices. This system has been implemented and is operational for several sites, including the Ruby Gulch Waste Rock Repository (a capped mine waste rock dump on the Gilt Edge Mine Superfund Site), the INL Vadoze Zone Research Park and an alternative cover landfill. Implementations for other vadoze zone sites are currently in progress. These systems allow for autonomous performance monitoring through automated data analysis and report generation. This performance monitoring has allowed users to obtain insights into system dynamics, regulatory compliance and residence times of water. Our system uses modular components for data selection and graphing and WSDL compliant webservices for external functions such as statistical analyses and model invocations. Thus, implementing this system for novel sites and extending functionality (e.g. adding novel models) is relatively straightforward. As system access requires a standard webbrowser and uses intuitive functionality, stakeholders with diverse degrees of technical insight can use this system with little or no training.

Mattson, E.; Versteeg, R.; Ankeny, M.; Stormberg, G.

2005-12-01

270

Personalized view-based search and visualization as a means for deep\\/semantic web data access  

Microsoft Academic Search

Effective access to and navigation in information stored in deep Web ontological repositories or relational databases has yet to be realized due to issues with usability of user interfaces and the overall scope and complexity of information as well as the nature of exploratory user tasks. We propose the integration and adaptation of novel navigation and visualization approaches to faceted

Michal Tvarozek; Mária Bieliková

2008-01-01

271

Developing an Understanding of the Nature of Accessibility and Usability Problems Blind Students Face in Web-Enhanced Instruction Environments  

ERIC Educational Resources Information Center

The central premise of this research is that blind and visually impaired (BVI) people cannot use the Internet effectively due to accessibility and usability problems. Use of the Internet is indispensable in today's education system that relies on Web-enhanced instruction (WEI). Therefore, BVI students cannot participate effectively in WEI. Extant…

Babu, Rakesh

2011-01-01

272

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

273

Purpose and Features of Web-Based Open-Access Crystallographic Databases  

NASA Astrophysics Data System (ADS)

Roughly 5,000 new crystal structures are added to the (approximately 104,000 entry) Inorganic Crystal Structure Database each year (see http://icsdweb.fiz-karlsruhe.de/index.php for an approximately 4,000 entry demonstration version). Other commercial crystallographic databases specialize in organics, metals and alloys, and ``non-organics'' including minerals. This presentation gives an overview over these databases and evaluates the potential of open-access databases such as the (approximately 68,000 entry) Crystallography Open Database (http://crystallography.net/) and Portland State University's (PSU's) Wiki Crystallography Database, Crystal Morphology Database, and Nano-Crystallography Database (http://nanocrystallography.research.pdx.edu/CIF-searchable). Key features of open-access crystallographic databases are: a universal data exchange format, unrestricted internet access to the actual data (including downloads), search capabilities, and crystal structure identification functionalities. Interactive three-dimensional structure or morphology visualizations are also available at PSU's site. Most recently, we implemented at PSU community-based, Wikipedia-inspired data upload and database content management provisions. A selection of all of these features will be demonstrated (online) during the presentation.

Sondergeld, Peter; Moeck, Peter; Dusek, Boris; Hanke, Hynek

2008-05-01

274

Online Access to Weather Satellite Imagery Through the World Wide Web  

NASA Technical Reports Server (NTRS)

Both global area coverage (GAC) and high-resolution picture transmission (HRTP) data from the Advanced Very High Resolution Radiometer (AVHRR) are made available to laternet users through an online data access system. Older GOES-7 data am also available. Created as a "testbed" data system for NASA's future Earth Observing System Data and Information System (EOSDIS), this testbed provides an opportunity to test both the technical requirements of an onune'd;ta system and the different ways in which the -general user, community would employ such a system. Initiated in December 1991, the basic data system experienced five major evolutionary changes In response to user requests and requirements. Features added with these changes were the addition of online browse, user subsetting, dynamic image Processing/navigation, a stand-alone data storage system, and movement,from an X-windows graphical user Interface (GUI) to a World Wide Web (WWW) interface. Over Its lifetime, the system has had as many as 2500 registered users. The system on the WWW has had over 2500 hits since October 1995. Many of these hits are by casual users that only take the GIF images directly from the interface screens and do not specifically order digital data. Still, there b a consistent stream of users ordering the navigated image data and related products (maps and so forth). We have recently added a real-time, seven- day, northwestern United States normalized difference vegetation index (NDVI) composite that has generated considerable Interest. Index Terms-Data system, earth science, online access, satellite data.

Emery, W.; Baldwin, D.

1998-01-01

275

Organ Donation on Web 2.0: Content and Audience Analysis of Organ Donation Videos on YouTube  

Microsoft Academic Search

This study examines the content of and audience response to organ donation videos on YouTube, a Web 2.0 platform, with framing theory. Positive frames were identified in both video content and audience comments. Analysis revealed a reciprocity relationship between media frames and audience frames. Videos covered content categories such as kidney, liver, organ donation registration process, and youth. Videos were

Yan Tian

2010-01-01

276

A scalable and highly available system for serving dynamic data at frequently accessed web sites  

Microsoft Academic Search

This paper describes the system and key techniques used for achieving performance and high availability at the official Web site for the 1998 Olympic Winter Games which was one of the most popular Web sites for the duration of the Olympic Games. The Web site utilized thirteen SP2 systems scattered around the globe containing a total of 143 processors. A

Jim Challenger; Paul Dantzig; Arun Iyengar

1998-01-01

277

Managing Large Scale Project Analysis Teams through a Web Accessible Database  

NASA Technical Reports Server (NTRS)

Large scale space programs analyze thousands of requirements while mitigating safety, performance, schedule, and cost risks. These efforts involve a variety of roles with interdependent use cases and goals. For example, study managers and facilitators identify ground-rules and assumptions for a collection of studies required for a program or project milestone. Task leaders derive product requirements from the ground rules and assumptions and describe activities to produce needed analytical products. Disciplined specialists produce the specified products and load results into a file management system. Organizational and project managers provide the personnel and funds to conduct the tasks. Each role has responsibilities to establish information linkages and provide status reports to management. Projects conduct design and analysis cycles to refine designs to meet the requirements and implement risk mitigation plans. At the program level, integrated design and analysis cycles studies are conducted to eliminate every 'to-be-determined' and develop plans to mitigate every risk. At the agency level, strategic studies analyze different approaches to exploration architectures and campaigns. This paper describes a web-accessible database developed by NASA to coordinate and manage tasks at three organizational levels. Other topics in this paper cover integration technologies and techniques for process modeling and enterprise architectures.

O'Neil, Daniel A.

2008-01-01

278

Effective Schema Extraction of Query Interfaces on the Deep Web  

Microsoft Academic Search

The Deep Web is becoming a very important information resource. Unlike the traditional Web information retrieval, the contents on the Deep Web are only accessible through source query interfaces. However, for any domain of interest, there may be so many query interfaces that users need to access them in order to get the desired information, which is time-consuming and requires

Bao-hua Qiang; Jian-qing Xi; Ling Chen

2008-01-01

279

Building biomedical web communities using a semantically aware content management system.  

PubMed

Web-based biomedical communities are becoming an increasingly popular vehicle for sharing information amongst researchers and are fast gaining an online presence. However, information organization and exchange in such communities is usually unstructured, rendering interoperability between communities difficult. Furthermore, specialized software to create such communities at low cost-targeted at the specific common information requirements of biomedical researchers-has been largely lacking. At the same time, a growing number of biological knowledge bases and biomedical resources are being structured for the Semantic Web. Several groups are creating reference ontologies for the biomedical domain, actively publishing controlled vocabularies and making data available in Resource Description Framework (RDF) language. We have developed the Science Collaboration Framework (SCF) as a reusable platform for advanced structured online collaboration in biomedical research that leverages these ontologies and RDF resources. SCF supports structured 'Web 2.0' style community discourse amongst researchers, makes heterogeneous data resources available to the collaborating scientist, captures the semantics of the relationship among the resources and structures discourse around the resources. The first instance of the SCF framework is being used to create an open-access online community for stem cell research-StemBook (http://www.stembook.org). We believe that such a framework is required to achieve optimal productivity and leveraging of resources in interdisciplinary scientific research. We expect it to be particularly beneficial in highly interdisciplinary areas, such as neurodegenerative disease and neurorepair research, as well as having broad utility across the natural sciences. PMID:19060302

Das, Sudeshna; Girard, Lisa; Green, Tom; Weitzman, Louis; Lewis-Bowen, Alister; Clark, Tim

2009-03-01

280

System support for web hosting services on server clusters  

Microsoft Academic Search

The Web hosting service is becoming increasingly important in which the service providers offer system resources to store and provide Web access to contents from individuals, institutions, and companies who lack resources or expertise to maintain a Web site. Web server cluster is a popular architecture used by the hosting service providers as a way to create scalable and highly

Chun-wei Tseng; Chu-sing Yang

2007-01-01

281

Specification and verification of data-driven web services  

Microsoft Academic Search

We study data-driven Web services provided by Web sites interacting with users or applications. The Web site can access an underlying database, as well as state information updated as the interaction progresses, and receives user input. The structure and contents of Web pages, as well as the actions to be taken, are determined dynamically by querying the underlying database as

Alin Deutsch; Liying Sui; Victor Vianu

2004-01-01

282

ViDE: A Vision-Based Approach for Deep Web Data Extraction  

Microsoft Academic Search

Deep Web contents are accessed by queries submitted to Web databases and the returned data records are enwrapped in dynamically generated Web pages (they will be called deep Web pages in this paper). Extracting structured data from deep Web pages is a challenging problem due to the underlying intricate structures of such pages. Until now, a large number of techniques

Wei Liu; Xiaofeng Meng; Weiyi Meng

2010-01-01

283

On Building a Web-Based University  

ERIC Educational Resources Information Center

This paper describes some of the principles for building a freely available web-based university with open content. The "tutor-web" is an international project for web-assisted education, including such free and open access. This project was initiated by the University of Iceland in partnership with many universities around the world, among them…

Constantinescu, Dana; Stefansson, Gunnar

2010-01-01

284

The Geospatial Web and Local Geographical Education  

ERIC Educational Resources Information Center

Recent innovations in the Geospatial Web represent a paradigm shift in Web mapping by enabling educators to explore geography in the classroom by dynamically using a rapidly growing suite of impressive online geospatial tools. Coupled with access to spatial data repositories and User-Generated Content, the Geospatial Web provides a powerful…

Harris, Trevor M.; Rouse, L. Jesse; Bergeron, Susan J.

2010-01-01

285

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

286

Data Products from W.A.V.E.S: CDIAC's Web-Accessible Visualization and Extraction System  

DOE Data Explorer

W.A.V.E.S. stands for the Web-Accessible Visualization and Extraction System. Implemented in 2007, this specialized data interface allows users to search for ocean carbon data and receive on screen tables of data, data plots, or data files to download. An interactive map assists in the search, which has many customized search and output parameters. Both discrete data and underway data from ships' cruises are available for search.

287

Internet access to the web resources of a geographically distributed system of near-and deep-space monitoring  

NASA Astrophysics Data System (ADS)

The state and speed characteristics of Web access to the first five nodes of the projected geographically distributed system of scientific monitoring of near and deep space are analyzed. The possibility of developing an architecture involving user query redirection to a caching server is studied. This will make it possible to relieve hardware communication links substantially and speed up HTTP connection time, especially for nodes linked via heavily congested Internet links.

Chernenkov, V. N.; Vitkovskij, V. V.; Kalinina, N. A.

2007-12-01

288

Using Association Rules and Markov Model for Predit Next Access on Web Usage Mining  

Microsoft Academic Search

Predicting the next request of a user as visits Web pages has gained importance as Web-based activity increases. A large amount\\u000a of research has been done on trying to predict correctly the pages a user will request. This task requires the development\\u000a of models that can predicts a user’s next request to a web server. In this paper, we propose

Siriporn Chimphlee; Naomie Salim; Mohd Salihin Bin Ngadiman; Witcha Chimphlee

289

HTML5 and the Mobile Web  

Microsoft Academic Search

Accessing the Web from mobile devices is a popular practice. Trends show that the mobile space is becoming the method through which many consumers access content – both through native and web applications. These applications have expanded the browsing experience, but have also complicated the development process. A need exists for a simple, uniform solution which HTML5 is attempting to

Kevin Curran; Aaron Bond; Gavin Fisher

2012-01-01

290

RegPrecise web services interface: programmatic access to the transcriptional regulatory interactions in bacteria reconstructed by comparative genomics.  

PubMed

Web services application programming interface (API) was developed to provide a programmatic access to the regulatory interactions accumulated in the RegPrecise database (http://regprecise.lbl.gov), a core resource on transcriptional regulation for the microbial domain of the Department of Energy (DOE) Systems Biology Knowledgebase. RegPrecise captures and visualize regulogs, sets of genes controlled by orthologous regulators in several closely related bacterial genomes, that were reconstructed by comparative genomics. The current release of RegPrecise 2.0 includes >1400 regulogs controlled either by protein transcription factors or by conserved ribonucleic acid regulatory motifs in >250 genomes from 24 taxonomic groups of bacteria. The reference regulons accumulated in RegPrecise can serve as a basis for automatic annotation of regulatory interactions in newly sequenced genomes. The developed API provides an efficient access to the RegPrecise data by a comprehensive set of 14 web service resources. The RegPrecise web services API is freely accessible at http://regprecise.lbl.gov/RegPrecise/services.jsp with no login requirements. PMID:22700702

Novichkov, Pavel S; Brettin, Thomas S; Novichkova, Elena S; Dehal, Paramvir S; Arkin, Adam P; Dubchak, Inna; Rodionov, Dmitry A

2012-07-01

291

Web Service Access and Display of USGS Oceanographic Time-Series Data Using the NOAA Earth Research Division's Data Access Program (ERDDAP)  

NASA Astrophysics Data System (ADS)

The sediment transport group of the U.S. Geologic Survey Coastal Marine Geology Program (USGS CMGP) maintains an archive of more than 4400 NetCDF files collected over the last 30 years (Montgomery et al, 2007). The conventions used in these NetCDF files were determined long before the emerging standard Climate and Forecast (CF) conventions for NetCDF, and web access has been traditionally been limited to simple downloading of the NetCDF files. To take advantage of a growing suite of software that works with CF-compliant data, A combination of NcML and the THREDDS Data Server were used to allow web services access of CF compliant data via the OGC WCS service and OPeNDAP. The primary users of these coastal oceanographic measurements are modelers who are facile with netCDF files and URL references. Other users, however, may prefer to obtain the data in another format or perhaps just plot a variable. To assist both groups of users, we have evaluated NOAA's Earth Research Division's Data Access Program (ERDDAP) as a potential method of providing a more flexible and powerful interface to the data. This versatile program is able to access data from a variety of web services, including OPeNDAP, and then deliver the data using web services in a very wide variety of formats, from common image formats such as PNG and JPG (pictures of plots), to NetCDF, Matlab, text and spreadsheet formats. Installation and configuration of ERDDAP was straightforward. The software written in Java, and delivered as a War file that runs on a standard Tomcat server. Configuration of the user interface and the dataset list is controlled by XML files. The documentation is well written and much of the XML generation is handled by the supplied autogen function that reads a netCDF file and generates XML based on the file attributes. We are working on a Matlab program that will completely automate the process by interrogating our data holdings and producing the completely formed XML. Our initial assessment is that the ERDDAP server does indeed enable a more versatile way for users to interact with our data. Allowing users to select specific variables, time ranges and plot or data formats is a huge improvement. References Montgomery, E., Martini, M., Lightsom, F.L., and Butman, B., 2008, Documentation of the U.S. Geological Survey Oceanographic Time Series Measurement Database: U.S. Geological Survey Open-File Report 2007- 1194 (http://woodshole.er.usgs.gov/pubs/of2007-1194/) enviro.er.usgs.gov/erddap

Montgomery, E. T.

2008-12-01

292

A Load Management System for Cluster Web Servers Based on Request Content  

Microsoft Academic Search

With the rapid development of Internet, the scale of WEB service is expanding. WEB cluster technology is required to support the large-scale WEB applications. WEB load management is a critical technology of WEB clusters. In this paper, a load management mechanism is presented and a system based on it is implemented. To implement the system, share memory technology and synchronization

Tian Chunqing; Guo Qingshun; Tang Guohua

2009-01-01

293

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

294

An admission control scheme for predictable server response time for web accesses  

Microsoft Academic Search

The diversity in web object types and their resource requirements contributes to the unpredictability of web service provisioning. In this paper, an efficient admission control algorithm, PACERS, is proposed to provide different levels of services based on the server workload characteristics. Service quality is ensured by periodical allocation of system resources based on the estimation of request rate and service

Xiangping Chen; Prasant Mohapatra; Huamin Chen

2001-01-01

295

Architecture and Protocol for User-Controlled Access Management in Web 2.0 Applications.  

National Technical Information Service (NTIS)

The rapidly developing Web environment provides users with a wide set of rich services as varied and complex as desktop applications. Those services are collectively referred to as 'Web 2.0,' with examples such as Google Docs, Flickr, or Wordpress, that a...

A. van Moorsel M. Machulak

2010-01-01

296

Revealing Hidden Community Structures and Identifying Bridges in Complex Networks: An Application to Analyzing Contents of Web Pages for Browsing  

Microsoft Academic Search

The emergence of scale free and small world properties in real world complex networks has stimulated lots of activity in the field of network analysis. An example of such a network comes from the field of Content Analysis (CA) and Text Mining where the goal is to analyze the contents of a set of web pages. The Network can be

Faraz Zaidi; Arnaud Sallaberry; Guy Melançon

2009-01-01

297

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

298

Usage of data-encoded web maps with client side color rendering for combined data access, visualization, and modeling purposes  

NASA Astrophysics Data System (ADS)

Current approaches to satellite observation data storage and distribution implement separate visualization and data access methodologies which often leads to the need in time consuming data ordering and coding for applications requiring both visual representation as well as data handling and modeling capabilities. We describe an approach we implemented for a data-encoded web map service based on storing numerical data within server map tiles and subsequent client side data manipulation and map color rendering. The approach relies on storing data using the lossless compression Portable Network Graphics (PNG) image data format which is natively supported by web-browsers allowing on-the-fly browser rendering and modification of the map tiles. The method is easy to implement using existing software libraries and has the advantage of easy client side map color modifications, as well as spatial subsetting with physical parameter range filtering. This method is demonstrated for the ASTER-GDEM elevation model and selected MODIS data products and represents an alternative to the currently used storage and data access methods. One additional benefit includes providing multiple levels of averaging due to the need in generating map tiles at varying resolutions for various map magnification levels. We suggest that such merged data and mapping approach may be a viable alternative to existing static storage and data access methods for a wide array of combined simulation, data access and visualization purposes.

Pliutau, Denis; Prasad, Narasimha S.

2013-05-01

299

Usage of Data-Encoded Web Maps with Client Side Color Rendering for Combined Data Access, Visualization and Modeling Purposes  

NASA Technical Reports Server (NTRS)

Current approaches to satellite observation data storage and distribution implement separate visualization and data access methodologies which often leads to the need in time consuming data ordering and coding for applications requiring both visual representation as well as data handling and modeling capabilities. We describe an approach we implemented for a data-encoded web map service based on storing numerical data within server map tiles and subsequent client side data manipulation and map color rendering. The approach relies on storing data using the lossless compression Portable Network Graphics (PNG) image data format which is natively supported by web-browsers allowing on-the-fly browser rendering and modification of the map tiles. The method is easy to implement using existing software libraries and has the advantage of easy client side map color modifications, as well as spatial subsetting with physical parameter range filtering. This method is demonstrated for the ASTER-GDEM elevation model and selected MODIS data products and represents an alternative to the currently used storage and data access methods. One additional benefit includes providing multiple levels of averaging due to the need in generating map tiles at varying resolutions for various map magnification levels. We suggest that such merged data and mapping approach may be a viable alternative to existing static storage and data access methods for a wide array of combined simulation, data access and visualization purposes.

Pliutau, Denis; Prasad, Narashimha S.

2013-01-01

300

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

301

Quality and accessibility of oncology-related clinical trials information: A content analysis of Internet media. | accrualnet.cancer.gov  

Cancer.gov

Eighty-five percent of the 40 Web sites reviewed mentioned clinical trials on their landing pages. However, only about three-quarters of sites defined clinical trials and just one-half provided information about the benefits and risks of enrollment. Additionally, for lung cancer and myelodysplastic syndromes (MDS), few sites offered interactive features to facilitate access to information about relevant clinical trials.

302

A Service with Uniform Access to Granule Content for Heliophysics Datasets  

NASA Astrophysics Data System (ADS)

We present a prototype service offering unified access to space physics data content. Our focus is the time series data cataloged by the now operational Virtual Observatories (VxOs) within NASA's heliosphysics community. While the VxOs largely focus on data discovery, our focus is uniform access to granule content for energetic particle, plasma, and magnetic field datasets. Given a dataset name and a time range, the service returns the requested subset of data content in a format that is identical for products of a particular measurement type, i.e., all energetic particle datasets will resemble each other in format, all plasma data will be identically formatted, etc. The prototype service offers key datasets from the Virtual Heliospheric Observatory (VHO), the Virtual Magnetospheric Observatory (VMO), and the the Virtual Space Physics Observatory (VSPO). We discuss the use as well as the design of the service, including its relationship to SPASE metadata. Also, visualization for the output of the service is presented using Autoplot (http://www.autoplot.org). We conclude with an outline describing how this prototype could be extended from its current capacity (dozens of datasets) to a much larger capacity of hundreds of datasets. www.jhuapl.edu/datashop/dataservice

Vandegriff, J. D.; Brown, L. E.; Faden, J.

2008-12-01

303

Magnetic Fields for All: The GPIPS Community Web-Access Portal  

NASA Astrophysics Data System (ADS)

The new GPIPS website portal provides community users with an intuitive and powerful interface to query the data products of the Galactic Plane Infrared Polarization Survey. The website, which was built using PHP for the front end and MySQL for the database back end, allows users to issue queries based on galactic or equatorial coordinates, GPIPS-specific identifiers, polarization information, magnitude information, and several other attributes. The returns are presented in HTML tables, with the added option of either downloading or being emailed an ASCII file including the same or more information from the database. Other functionalities of the website include providing details of the status of the Survey (which fields have been observed or are planned to be observed), techniques involved in data collection and analysis, and descriptions of the database contents and names. For this initial launch of the website, users may access the GPIPS polarization point source catalog and the deep coadd photometric point source catalog. Future planned developments include a graphics-based method for querying the database, as well as tools to combine neighboring GPIPS images into larger image files for both polarimetry and photometry. This work is partially supported by NSF grant AST-0607500.

Carveth, Carol; Clemens, D. P.; Pinnick, A.; Pavel, M.; Jameson, K.; Taylor, B.

2007-12-01

304

Using Python Scripting and Web Frameworks to Access Spatial and Temporal Data via KML  

NASA Astrophysics Data System (ADS)

Ever increasing volumes of spatial and temporal data about our world are being made available for download by various organizations. However, the data formats used are generally well-suited for storing large volumes of data but are not directly usable without specialized software. Also in recent years, there has been a wide adoption of easy-to-use virtual globe browsers (such as Google Earth) for viewing spatial and temporal datasets, but these applications cannot directly work with many large datasets due to the formats and/or the size of the datasets. This work presents several examples of Python-based data systems for accessing, filtering, and transforming large and complex spatial and temporal datasets into KML, an Open Geospatial Consortium (OGC) standard used for visualization and annotation of two-dimensional and three-dimensional data. Precipitable water forecasted by the NCEP Global Forecast System (GFS) model. Soil moisture content for December 2024 predicted by an IPCC model (GFDL R30).

Erickson, T. A.; Koziol, B. W.

2010-12-01

305

Web-based interactive access, analysis and comparison of remotely sensed and in situ measured temperature data  

NASA Astrophysics Data System (ADS)

Numerous datasets providing temperature information from meteorological stations or remote sensing satellites are available. However, the challenging issue is to search in the archives and process the time series information for further analysis. These steps can be automated for each individual product, if the pre-conditions are complied, e.g. data access through web services (HTTP, FTP) or legal rights to redistribute the datasets. Therefore a python-based package was developed to provide data access and data processing tools for MODIS Land Surface Temperature (LST) data, which is provided by NASA Land Processed Distributed Active Archive Center (LPDAAC), as well as the Global Surface Summary of the Day (GSOD) and the Global Historical Climatology Network (GHCN) daily datasets provided by NOAA National Climatic Data Center (NCDC). The package to access and process the information is available as web services used by an interactive web portal for simple data access and analysis. Tools for time series analysis were linked to the system, e.g. time series plotting, decomposition, aggregation (monthly, seasonal, etc.), trend analyses, and breakpoint detection. Especially for temperature data a plot was integrated for the comparison of two temperature datasets based on the work by Urban et al. (2013). As a first result, a kernel density plot compares daily MODIS LST from satellites Aqua and Terra with daily means from GSOD and GHCN datasets. Without any data download and data processing, the users can analyze different time series datasets in an easy-to-use web portal. As a first use case, we built up this complimentary system with remotely sensed MODIS data and in situ measurements from meteorological stations for Siberia within the Siberian Earth System Science Cluster (www.sibessc.uni-jena.de). References: Urban, Marcel; Eberle, Jonas; Hüttich, Christian; Schmullius, Christiane; Herold, Martin. 2013. "Comparison of Satellite-Derived Land Surface Temperature and Air Temperature from Meteorological Stations on the Pan-Arctic Scale." Remote Sens. 5, no. 5: 2348-2367. Further materials: Eberle, Jonas; Clausnitzer, Siegfried; Hüttich, Christian; Schmullius, Christiane. 2013. "Multi-Source Data Processing Middleware for Land Monitoring within a Web-Based Spatial Data Infrastructure for Siberia." ISPRS Int. J. Geo-Inf. 2, no. 3: 553-576.

Eberle, Jonas; Urban, Marcel; Hüttich, Christian; Schmullius, Christiane

2014-05-01

306

Technical Considerations in Remote LIMS Access via the World Wide Web  

PubMed Central

The increased dependency on the World Wide Web by both laboratories and their customers has led LIMS developers to take advantage of thin-client web applications that provide both remote data entry and manipulation, along with remote reporting functionality. Use of an LIMS through a web browser allows a person to interact with a distant application, providing both remote administration and real-time analytical result delivery from virtually anywhere in the world. While there are many benefits of web-based LIMS applications, some concern must be given to these new methods of system architecture before justifying them as a suitable replacement for their traditional client-server systems. Developers and consumers alike must consider the security aspects of introducing a wide area network capable system into a production environment, as well as the concerns of data integrity and usability.

Schlabach, David M.

2005-01-01

307

Technical Considerations in Remote LIMS Access via the World Wide Web.  

PubMed

The increased dependency on the World Wide Web by both laboratories and their customers has led LIMS developers to take advantage of thin-client web applications that provide both remote data entry and manipulation, along with remote reporting functionality. Use of an LIMS through a web browser allows a person to interact with a distant application, providing both remote administration and real-time analytical result delivery from virtually anywhere in the world. While there are many benefits of web-based LIMS applications, some concern must be given to these new methods of system architecture before justifying them as a suitable replacement for their traditional client-server systems. Developers and consumers alike must consider the security aspects of introducing a wide area network capable system into a production environment, as well as the concerns of data integrity and usability. PMID:18924736

Ulma, William; Schlabach, David M

2005-01-01

308

A real-time hybrid Web-client access architecture for home automation  

Microsoft Academic Search

This paper describes the development of a real-time home automation system utilizing existing Web-based technologies. The system uses a residential gateway consisting of an embedded Internet microcontroller and a dial-up modem to enable Internet connectivity for the household devices. The embedded Internet microcontroller is a hybrid Web client\\/server system that utilizes hypertext transfer protocol as the high-level application protocol for

S. Kuo; Z. Salcic; U. Madawala

2003-01-01

309

The NASA Ames PAH IR Spectroscopic Database: A Demo of its Contents and Web Tools  

NASA Astrophysics Data System (ADS)

The features formerly known as the Unidentified Infrared (UIR) Emission Bands are now generally attributed to polycyclic aromatic hydrocarbons (PAHs). Exploitation of these features as astrophysical and astrochemical probes requires the IR properties of PAHs under interstellar conditions. To fulfill this need, we experimentally measured and theoretically computed the 2-2000 µm spectra of many PAHs over the past 18 years at NASA's Ames Research Center. Today's collection comprises about 600 theoretically computed and 60 laboratory measured spectra of PAHs in different forms. The molecules in the collection range in size from C10H8 to C130H28. For most of these, spectra are available for PAHs in their neutral and singly charged (+/-) states. In some cases, IR spectra of multiply charged species were also computed. The database includes pure PAHs; PAHs containing nitrogen (PANHs), oxygen, and silicon; PAHs with side groups; PAHs with extra hydrogens; and PAHs complexed with iron and magnesium. This collection of PAH spectra from 2 - 2000 µm has been assembled into a uniform database, which we will make publicly available on the web in early 2009. A WebGUI interface has been developed that can effectively interrogate the database using a variety of queries, such as formula, molecular name, charge, specific number of atoms, etc. Several molecules can be selected in such a process and one can obtain their 3-D structures, plot and co-add their spectra, adjust parameters such as the bandwidth, download their data and print graphs. The database can also be downloaded as a whole and IDL-routines are provided to interrogate it. This talk will present an overview of the contents and the web-GUI tools of the NASA Ames PAH IR Spectroscopic Database. Hands-on demonstrations will be available at the SOFIA Booth.

Boersma, Christiaan; Sánchez de Armas, F.; Ricca, A.; Cami, J.; Peeters, E.; Mattioda, A. L.; Bauschlicher, C. W., Jr.; Allamandola, L. J.

2009-01-01

310

The International Mouse Phenotyping Consortium Web Portal, a unified point of access for knockout mice and related phenotyping data.  

PubMed

The International Mouse Phenotyping Consortium (IMPC) web portal (http://www.mousephenotype.org) provides the biomedical community with a unified point of access to mutant mice and rich collection of related emerging and existing mouse phenotype data. IMPC mouse clinics worldwide follow rigorous highly structured and standardized protocols for the experimentation, collection and dissemination of data. Dedicated 'data wranglers' work with each phenotyping center to collate data and perform quality control of data. An automated statistical analysis pipeline has been developed to identify knockout strains with a significant change in the phenotype parameters. Annotation with biomedical ontologies allows biologists and clinicians to easily find mouse strains with phenotypic traits relevant to their research. Data integration with other resources will provide insights into mammalian gene function and human disease. As phenotype data become available for every gene in the mouse, the IMPC web portal will become an invaluable tool for researchers studying the genetic contributions of genes to human diseases. PMID:24194600

Koscielny, Gautier; Yaikhom, Gagarine; Iyer, Vivek; Meehan, Terrence F; Morgan, Hugh; Atienza-Herrero, Julian; Blake, Andrew; Chen, Chao-Kung; Easty, Richard; Di Fenza, Armida; Fiegel, Tanja; Grifiths, Mark; Horne, Alan; Karp, Natasha A; Kurbatova, Natalja; Mason, Jeremy C; Matthews, Peter; Oakley, Darren J; Qazi, Asfand; Regnart, Jack; Retha, Ahmad; Santos, Luis A; Sneddon, Duncan J; Warren, Jonathan; Westerberg, Henrik; Wilson, Robert J; Melvin, David G; Smedley, Damian; Brown, Steve D M; Flicek, Paul; Skarnes, William C; Mallon, Ann-Marie; Parkinson, Helen

2014-01-01

311

[Trophic webs of reef fishes in northwestern Cuba. I. Stomach contents].  

PubMed

Trophic webs of reef fishes in northwestern Cuba. I. Stomach contents. Studies on the reef fishes of Cuba are not rare, but most have two basic limitations: small sample sizes and exclusion of small species. Our study sampled more species and larger samples in the sublitoral region of Havana city (23 degrees 7.587' N, 82 degrees 25.793' W), 2-18 m deep. We collected fish weekly from October 2004 through February 2006 with traps and harpoon. Overfishing has modified the fish communities. We used the relative importance index to describe the diets of carnivore and omnivore species, and a modification of the relative abundance method for the herbivores and sponge-eating species. The main food items are benthonic crustaceans (crabs, shrimp, copepods) and bony fish (mainly demersal species). Most species are eurifagous and thus, less affected by anthropic disturbance than specialist feeders. PMID:19256427

Hernández, Ivet; Aguilar, Consuelo; González Sanón, Gaspar

2008-06-01

312

78 FR 17934 - Accessible Medical Device Labeling in a Standard Content and Format Public Workshop; Extension of...  

Federal Register 2010, 2011, 2012, 2013

...SERVICES Food and Drug Administration [Docket No. FDA-2012-N-1205] Accessible Medical Device Labeling in a Standard Content and Format Public Workshop; Extension of Comment Period AGENCY: Food and Drug Administration, HHS. ACTION: Notice of...

2013-03-25

313

78 FR 6825 - Accessible Medical Device Labeling in a Standard Content and Format Public Workshop; Request for...  

Federal Register 2010, 2011, 2012, 2013

...SERVICES Food and Drug Administration [Docket No. FDA-2012-N-1205] Accessible Medical Device Labeling in a Standard Content and Format Public Workshop; Request for Comments; Correction AGENCY: Food and Drug Administration, HHS. ACTION:...

2013-01-31

314

Evaluating Our Web Presence: Challenges, Metrics, Results.  

National Technical Information Service (NTIS)

The Internet and the World Wide Web offer all of us tremendous opportunities and challenges in providing access to scientific, technical and medical information. We want to provide content that is timely, accurate and understandable, delivered by systems ...

G. Hodge

2001-01-01

315

Measurement of nuclear DNA content of the genus Trifolium L. as a measure of genebank accession identity  

Microsoft Academic Search

The collection, identification and maintenance of genebank accessions of the genus Trifolium is a major task because of the large number of genera and their occasional morphological similarity. We investigated whether\\u000a the measurement of nuclear DNA content can serve as an additional criterion for identification of mislabeled accessions. Relative\\u000a nuclear DNA content was determined by flow cytometry measurements for a

Liliana Vižintin; Borut Bohanec

2008-01-01

316

Internet Access and Use of the Web for Instruction: A National Study of Full-Time and Part-Time Community College Faculty  

ERIC Educational Resources Information Center

This research explored the issues of access to the internet and use of the web for instructional purposes between full-time and part-time community college faculty. The findings that 40% of part-time faculty do not have Internet access at work would seem to indicate that part-time faculty are poorly integrated into the technology infrastructure of…

Akroyd, Duane; Jaeger, Audrey; Jackowski, Melissa; Jones, Logan C.

2004-01-01

317

Using NASA's Giovanni Web Portal to Access and Visualize Satellite-based Earth Science Data in the Classroom  

NASA Technical Reports Server (NTRS)

One of the biggest obstacles for the average Earth science student today is locating and obtaining satellite-based remote sensing data sets in a format that is accessible and optimal for their data analysis needs. At the Goddard Earth Sciences Data and Information Services Center (GES-DISC) alone, on the order of hundreds of Terabytes of data are available for distribution to scientists, students and the general public. The single biggest and time-consuming hurdle for most students when they begin their study of the various datasets is how to slog through this mountain of data to arrive at a properly sub-setted and manageable data set to answer their science question(s). The GES DISC provides a number of tools for data access and visualization, including the Google-like Mirador search engine and the powerful GES-DISC Interactive Online Visualization ANd aNalysis Infrastructure (Giovanni) web interface.

Lloyd, Steven; Acker, James G.; Prados, Ana I.; Leptoukh, Gregory G.

2008-01-01

318

The Healthy Web--Access to Online Health Information for Individuals with Disabilities  

ERIC Educational Resources Information Center

Background: The Internet can be an invaluable resource for obtaining health information by people with disabilities. Although valid and reliable information is available, previous research revealed barriers to accessing health information online. Health education specialists have the responsibilities to insure that it is accessible to all users.…

Geiger, Brian; Evans, R. R.; Cellitti, M. A.; Smith, K. Hogan; O'Neal, Marcia R.; Firsing, S. L., III; Chandan, P.

2011-01-01

319

Addressing Challenges in Web Accessibility for the Blind and Visually Impaired  

ERIC Educational Resources Information Center

Searching for relevant information on the web is an important aspect of distance learning. This activity is a challenge for visually impaired distance learners. While sighted people have the ability to filter information in a fast and non sequential way, blind persons rely on tools that process the information in a sequential way. Learning is…

Guercio, Angela; Stirbens, Kathleen A.; Williams, Joseph; Haiber, Charles

2011-01-01

320

Network accessible security Web-based camera server system using index search algorithm  

Microsoft Academic Search

Existing analog monitoring camera systems can save and retrieve data only in a limited space within a short distance, and they have many constraints preventing their development in various application systems. However, on the back of the development of network and computer technologies, a monitoring camera system can be controlled from a remote location by a Web browser without space

Mike Myung-Ok Lee; Chil-Woo Lee; Young-Cheol Kim

2001-01-01

321

Web-based Community Networks: A Study of Information Organization and Access.  

ERIC Educational Resources Information Center

Reports results of a research project assessing state-funded community networking (CN) sites in India. Explores the organization of information resources and services provided by 24 Web-based community networks, examines the core design principles that have been most useful in the development of these sites, and assesses strategies currently used…

Rosenbaum, Howard

1998-01-01

322

LAB-on-WEB - A COMPREHENSIVE ELECTRONIC DEVICE LABORATORY ON A CHIP ACCESSIBLE VIA INTERNET  

Microsoft Academic Search

We discuss the implementation of a comprehensive electronic device laboratory on a chip that significantly enhances the learning experience of our remote laboratory, LAB-on-WEB. This chip contains several device and circuit test structures, all fabricated in CMOS technology. Besides providing a valuable familiarity with the behavior of the building block of modern integrated circuits, the lab is also designed for

Tor A. Fjeldly; Jan Olav Strandman; Raymond Berntzen

323

A lightweight and secure protocol to access Web Services in 6LoWPAN  

Microsoft Academic Search

Sensor Networks have become an integral part of ubiquitous computing. However, their full integration with the ubiquitous computing paradigm is still an open problem due to the lack of integration with Internet protocols such as HTTP and SOAP, which enable the use of Web Services from remote clients. Additionally, these protocols do not address the requirements for wireless sensor networks,

Patricia E. Figueroa; Jesus A. Perez; Ismael Amezcua; Victor H. Hernandez

2012-01-01

324

Is Web Conferencing Software Ready for the Big Time? Accessible IT  

ERIC Educational Resources Information Center

This month's column focuses on online Web conferencing software. This year promises to have the right mix of conditions to create significant growth in the use of these systems among libraries; library consortia, networks, and associations; and other library-related organizations. Travel budgets are being cut, librarian positions are being…

Peters, Tom; Bell, Lori

2006-01-01

325

High Availability Applications for NOMADS at the NOAA Web Operations Center Aimed at Providing Reliable Real Time Access to Operational Model Data  

Microsoft Academic Search

The NOAA Operational Modeling Archive Distribution System (NOMADS) is now delivering high availability services as part of NOAA's official real time data dissemination at its Web Operations Center (WOC). The WOC is a web service used by all organizational units in NOAA and acts as a data repository where public information can be posted to a secure and scalable content

J. C. Alpert; G. Rutledge; J. Wang; P. Freeman; C. Y. Kang

2009-01-01

326

Prototype and Evaluation of AutoHelp: A Case-based, Web-accessible Help Desk System for EOSDIS  

NASA Technical Reports Server (NTRS)

AutoHelp is a case-based, Web-accessible help desk for users of the EOSDIS. Its uses a combination of advanced computer and Web technologies, knowledge-based systems tools, and cognitive engineering to offload the current, person-intensive, help desk facilities at the DAACs. As a case-based system, AutoHelp starts with an organized database of previous help requests (questions and answers) indexed by a hierarchical category structure that facilitates recognition by persons seeking assistance. As an initial proof-of-concept demonstration, a month of email help requests to the Goddard DAAC were analyzed and partially organized into help request cases. These cases were then categorized to create a preliminary case indexing system, or category structure. This category structure allows potential users to identify or recognize categories of questions, responses, and sample cases similar to their needs. Year one of this research project focused on the development of a technology demonstration. User assistance 'cases' are stored in an Oracle database in a combination of tables linking prototypical questions with responses and detailed examples from the email help requests analyzed to date. When a potential user accesses the AutoHelp system, a Web server provides a Java applet that displays the category structure of the help case base organized by the needs of previous users. When the user identifies or requests a particular type of assistance, the applet uses Java database connectivity (JDBC) software to access the database and extract the relevant cases. The demonstration will include an on-line presentation of how AutoHelp is currently structured. We will show how a user might request assistance via the Web interface and how the AutoHelp case base provides assistance. The presentation will describe the DAAC data collection, case definition, and organization to date, as well as the AutoHelp architecture. It will conclude with the year 2 proposal to more fully develop the case base, the user interface (including the category structure), interface with the current DAAC Help System, the development of tools to add new cases, and user testing and evaluation at (perhaps) the Goddard DAAC.

Mitchell, Christine M.; Thurman, David A.

1999-01-01

327

Customer loyalty to content-based Web sites: the case of an online health-care service  

Microsoft Academic Search

Past e-service research has largely concentrated on customer responses to online retailers. The present study sheds light on the determinants of customer loyalty to a content-based service, a healthcare Web site. Content-based service providers must build a loyal customer base in order to attract advertisers and sponsors. Lack of trust has been one of the most important reasons for consumers

Johanna Gummerus; Veronica Liljander; Minna Pura; Allard van Riel

2004-01-01

328

Archiving Web-Published Materials: A Needs Assessment of Librarians, Researchers, and Content Providers  

ERIC Educational Resources Information Center

The Web-at-Risk project is a digital preservation project funded by the Library of Congress as part of the National Digital Information Infrastructure and Preservation Program. The project is developing a Web archiving service to enable curators to build, store, and manage archived collections of Web-published materials captured largely from U.S.…

Murray, Kathleen R.; Hsieh, Inga K.

2008-01-01

329

A Content Analysis of Multinationals' Web Communication Strategies: Cross-Cultural Research Framework and Pre-Testing.  

ERIC Educational Resources Information Center

Discussion of research methodology for evaluating the degree of standardization in multinational corporations' online communication strategies across differing cultures focuses on a research framework for cross-cultural comparison of corporate Web pages, applying traditional advertising content study techniques. Describes pre-tests that examined…

Okazaki, Shintaro; Alonso Rivas, Javier

2002-01-01

330

A content analysis of multinationals' Web communication strategies: cross-cultural research framework and pre-testing  

Microsoft Academic Search

Despite the growing trend toward the interactive medium, there would appear to be a lack of comprehensive research methodology for evaluating the degree of standardisation in multinational corporations’ (MNCs’) online communication strategies across differing cultures. The objective of this exploratory study is to construct a research framework for cross-cultural comparison of corporate Web pages, applying traditional advertising content study techniques.

Shintaro Okazaki; Javier Alonso Rivas

2002-01-01

331

Scaffolding the design of accessible eLearning content: a user-centered approach and cognitive perspective.  

PubMed

There exist various guidelines for facilitating the design, preparation, and deployment of accessible eLearning applications and contents. However, such guidelines prevalently address accessibility in a rather technical sense, without giving sufficient consideration to the cognitive aspects and issues related to the use of eLearning materials by learners with disabilities. In this paper we describe how a user-centered design process was applied to develop a method and set of guidelines for didactical experts to scaffold their creation of accessible eLearning content, based on a more sound approach to accessibility. The paper also discusses possible design solutions for tools supporting eLearning content authors in the adoption and application of the proposed approach. PMID:18421489

Catarci, Tiziana; De Giovanni, Loredana; Gabrielli, Silvia; Kimani, Stephen; Mirabella, Valeria

2008-08-01

332

Automating testbed documentation and database access using World Wide Web (WWW) tools  

NASA Technical Reports Server (NTRS)

A method for providing uniform transparent access to disparate distributed information systems was demonstrated. A prototype testing interface was developed to access documentation and information using publicly available hypermedia tools. The prototype gives testers a uniform, platform-independent user interface to on-line documentation, user manuals, and mission-specific test and operations data. Mosaic was the common user interface, and HTML (Hypertext Markup Language) provided hypertext capability.

Ames, Charles; Auernheimer, Brent; Lee, Young H.

1994-01-01

333

Accessibility and usability in complex web based learning applications: lessons from the PEARL project  

Microsoft Academic Search

Abstract: This paper reports approaches ,promoting ,accessibility for disabled students to science and engineering practical work, developed in a major European educational technology project PEARL. It has developed,the facilities for conducting a range,of teaching experiments,in science ,and engineering subjects at higher education level remotely over the WWW. One ,of the ,initial rationales for the project was ,to facilitate increased access

Martyn Cooper; Chetz Colwell; Telmo Amaral

334

Combining Semantic Web technologies with Multi-Agent Systems for integrated access to biological resources.  

PubMed

The increasing volume and diversity of information in biomedical research is demanding new approaches for data integration in this domain. Semantic Web technologies and applications can leverage the potential of biomedical information integration and discovery, facing the problem of semantic heterogeneity of biomedical information sources. In such an environment, agent technology can assist users in discovering and invoking the services available on the Internet. In this paper we present SEMMAS, an ontology-based, domain-independent framework for seamlessly integrating Intelligent Agents and Semantic Web Services. Our approach is backed with a proof-of-concept implementation where the breakthrough and efficiency of integrating disparate biomedical information sources have been tested. PMID:18585096

García-Sánchez, Francisco; Fernández-Breis, Jesualdo Tomás; Valencia-García, Rafael; Gómez, Juan Miguel; Martínez-Béjar, Rodrigo

2008-10-01

335

US Geoscience Information Network, Web Services for Geoscience Information Discovery and Access  

NASA Astrophysics Data System (ADS)

The US Geoscience information network has developed metadata profiles for interoperable catalog services based on ISO19139 and the OGC CSW 2.0.2. Currently data services are being deployed for the US Dept. of Energy-funded National Geothermal Data System. These services utilize OGC Web Map Services, Web Feature Services, and THREDDS-served NetCDF for gridded datasets. Services and underlying datasets (along with a wide variety of other information and non information resources are registered in the catalog system. Metadata for registration is produced by various workflows, including harvest from OGC capabilities documents, Drupal-based web applications, transformation from tabular compilations. Catalog search is implemented using the ESRI Geoportal open-source server. We are pursuing various client applications to demonstrated discovery and utilization of the data services. Currently operational applications allow catalog search and data acquisition from map services in an ESRI ArcMap extension, a catalog browse and search application built on openlayers and Django. We are developing use cases and requirements for other applications to utilize geothermal data services for resource exploration and evaluation.

Richard, S.; Allison, L.; Clark, R.; Coleman, C.; Chen, G.

2012-04-01

336

Does an Interactive WebCT Site Help Students Learn?  

ERIC Educational Resources Information Center

We examined whether students with access to a supplemental course Web site enhanced with e-mail, discussion boards, and chat room capability reacted to it more positively than students who used a Web site with the same content but no communication features. Students used the Web sites on a voluntary basis. At the end of the semester, students…

Elicker, Joelle D.; O'Malley, Alison L.; Williams, Christine M.

2008-01-01

337

Web Replica Hosting Systems Design  

Microsoft Academic Search

Abstract Replication is a well-known technique to improve the accessibility of Web sites. It generally offers reduced client latencies and increases a site’s avai lability. However, applying replication techniques is not trivial, and various Content Delivery Net works (CDNs) have been created to facilitate replication for digital content providers. The su ccess of these CDNs has triggered further research efforts

Micha Szymaniak; Guillaume Pierre; Maarten Van Steen

338

Web Replica Hosting Systems Design  

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

339

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

340

Distribution of Adaptation Services for Ubiquitous Web AccesDriven by User Profiles  

Microsoft Academic Search

Abstract The popularity of ubiquitous Web access requires run- time adaptations of the Web contents. A significant trend in these content adaptation services is the growing,amount of personalization required by users. Personalized servic es are and will be a key feature for the success of the ubiqui- tous Web, but they open two critical issues: performance and profile management.,Issues related

Claudia Canali; Michele Colajanni; Riccardo Lancellotti

2006-01-01

341

The Effectiveness of Commercial Internet Web Sites: A User's Perspective.  

ERIC Educational Resources Information Center

A user survey of 60 company Web sites (electronic commerce, entertainment and leisure, financial and banking services, information services, retailing and travel, and tourism) determined that 30% had facilities for conducting online transactions and only 7% charged for site access. Overall, Web sites were rated high in ease of access, content, and…

Bell, Hudson; Tang, Nelson K. H.

1998-01-01

342

The OakMapper WebGIS: Improved Access to Sudden Oak Death Spatial Data1  

Microsoft Academic Search

Access to timely and accurate sudden oak death (SOD) location data is critical for SOD monitoring, management and research. Several websites (hereafter called the OakMapper sites) associated with sudden oak death monitoring efforts have been maintained with up-to- date SOD location information for over five years, providing information and maps of the most current spatial and attribute data on Phytophthora

K. Tuxen; M. Kelly

343

The InterPro BioMart: federated query and web service access to the InterPro Resource.  

PubMed

The InterPro BioMart provides users with query-optimized access to predictions of family classification, protein domains and functional sites, based on a broad spectrum of integrated computational models ('signatures') that are generated by the InterPro member databases: Gene3D, HAMAP, PANTHER, Pfam, PIRSF, PRINTS, ProDom, PROSITE, SMART, SUPERFAMILY and TIGRFAMs. These predictions are provided for all protein sequences from both the UniProt Knowledge Base and the UniParc protein sequence archive. The InterPro BioMart is supplementary to the primary InterPro web interface (http://www.ebi.ac.uk/interpro), providing a web service and the ability to build complex, custom queries that can efficiently return thousands of rows of data in a variety of formats. This article describes the information available from the InterPro BioMart and illustrates its utility with examples of how to build queries that return useful biological information. Database URL: http://www.ebi.ac.uk/interpro/biomart/martview. PMID:21785143

Jones, Philip; Binns, David; McMenamin, Conor; McAnulla, Craig; Hunter, Sarah

2011-01-01

344

Kinome Render: a stand-alone and web-accessible tool to annotate the human protein kinome tree  

PubMed Central

Human protein kinases play fundamental roles mediating the majority of signal transduction pathways in eukaryotic cells as well as a multitude of other processes involved in metabolism, cell-cycle regulation, cellular shape, motility, differentiation and apoptosis. The human protein kinome contains 518 members. Most studies that focus on the human kinome require, at some point, the visualization of large amounts of data. The visualization of such data within the framework of a phylogenetic tree may help identify key relationships between different protein kinases in view of their evolutionary distance and the information used to annotate the kinome tree. For example, studies that focus on the promiscuity of kinase inhibitors can benefit from the annotations to depict binding affinities across kinase groups. Images involving the mapping of information into the kinome tree are common. However, producing such figures manually can be a long arduous process prone to errors. To circumvent this issue, we have developed a web-based tool called Kinome Render (KR) that produces customized annotations on the human kinome tree. KR allows the creation and automatic overlay of customizable text or shape-based annotations of different sizes and colors on the human kinome tree. The web interface can be accessed at: http://bcb.med.usherbrooke.ca/kinomerender. A stand-alone version is also available and can be run locally.

Barker, Jonathan

2013-01-01

345

Kinome Render: a stand-alone and web-accessible tool to annotate the human protein kinome tree.  

PubMed

Human protein kinases play fundamental roles mediating the majority of signal transduction pathways in eukaryotic cells as well as a multitude of other processes involved in metabolism, cell-cycle regulation, cellular shape, motility, differentiation and apoptosis. The human protein kinome contains 518 members. Most studies that focus on the human kinome require, at some point, the visualization of large amounts of data. The visualization of such data within the framework of a phylogenetic tree may help identify key relationships between different protein kinases in view of their evolutionary distance and the information used to annotate the kinome tree. For example, studies that focus on the promiscuity of kinase inhibitors can benefit from the annotations to depict binding affinities across kinase groups. Images involving the mapping of information into the kinome tree are common. However, producing such figures manually can be a long arduous process prone to errors. To circumvent this issue, we have developed a web-based tool called Kinome Render (KR) that produces customized annotations on the human kinome tree. KR allows the creation and automatic overlay of customizable text or shape-based annotations of different sizes and colors on the human kinome tree. The web interface can be accessed at: http://bcb.med.usherbrooke.ca/kinomerender. A stand-alone version is also available and can be run locally. PMID:23940838

Chartier, Matthieu; Chénard, Thierry; Barker, Jonathan; Najmanovich, Rafael

2013-01-01

346

Hanford Borehole Geologic Information System (HBGIS) Updated User’s Guide for Web-based Data Access and Export  

SciTech Connect

The Hanford Borehole Geologic Information System (HBGIS) is a prototype web-based graphical user interface (GUI) for viewing and downloading borehole geologic data. The HBGIS is being developed as part of the Remediation Decision Support function of the Soil and Groundwater Remediation Project, managed by Fluor Hanford, Inc., Richland, Washington. Recent efforts have focused on improving the functionality of the HBGIS website in order to allow more efficient access and exportation of available data in HBGIS. Users will benefit from enhancements such as a dynamic browsing, user-driven forms, and multi-select options for selecting borehole geologic data for export. The need for translating borehole geologic data into electronic form within the HBGIS continues to increase, and efforts to populate the database continue at an increasing rate. These new web-based tools should help the end user quickly visualize what data are available in HBGIS, select from among these data, and download the borehole geologic data into a consistent and reproducible tabular form. This revised user’s guide supersedes the previous user’s guide (PNNL-15362) for viewing and downloading data from HBGIS. It contains an updated data dictionary for tables and fields containing borehole geologic data as well as instructions for viewing and downloading borehole geologic data.

Mackley, Rob D.; Last, George V.; Allwardt, Craig H.

2008-09-24

347

Focused Crawling of the Deep Web Using Service Class Descriptions  

SciTech Connect

Dynamic Web data sources--sometimes known collectively as the Deep Web--increase the utility of the Web by providing intuitive access to data repositories anywhere that Web access is available. Deep Web services provide access to real-time information, like entertainment event listings, or present a Web interface to large databases or other data repositories. Recent studies suggest that the size and growth rate of the dynamic Web greatly exceed that of the static Web, yet dynamic content is often ignored by existing search engine indexers owing to the technical challenges that arise when attempting to search the Deep Web. To address these challenges, we present DynaBot, a service-centric crawler for discovering and clustering Deep Web sources offering dynamic content. DynaBot has three unique characteristics. First, DynaBot utilizes a service class model of the Web implemented through the construction of service class descriptions (SCDs). Second, DynaBot employs a modular, self-tuning system architecture for focused crawling of the DeepWeb using service class descriptions. Third, DynaBot incorporates methods and algorithms for efficient probing of the Deep Web and for discovering and clustering Deep Web sources and services through SCD-based service matching analysis. Our experimental results demonstrate the effectiveness of the service class discovery, probing, and matching algorithms and suggest techniques for efficiently managing service discovery in the face of the immense scale of the Deep Web.

Rocco, D; Liu, L; Critchlow, T

2004-06-21

348

Frontier: High Performance Database Access Using Standard Web Components in a Scalable Multi-Tier Architecture  

SciTech Connect

A high performance system has been assembled using standard web components to deliver database information to a large number of broadly distributed clients. The CDF Experiment at Fermilab is establishing processing centers around the world imposing a high demand on their database repository. For delivering read-only data, such as calibrations, trigger information, and run conditions data, we have abstracted the interface that clients use to retrieve data objects. A middle tier is deployed that translates client requests into database specific queries and returns the data to the client as XML datagrams. The database connection management, request translation, and data encoding are accomplished in servlets running under Tomcat. Squid Proxy caching layers are deployed near the Tomcat servers, as well as close to the clients, to significantly reduce the load on the database and provide a scalable deployment model. Details the system's construction and use are presented, including its architecture, design, interfaces, administration, performance measurements, and deployment plan.

Kosyakov, S.; Kowalkowski, J.; Litvintsev, D.; Lueking, L.; Paterno, M.; White, S.P.; /Fermilab; Autio, Lauri; /Helsinki U.; Blumenfeld, B.; Maksimovic, P.; Mathis, M.; /Johns Hopkins U.

2004-09-01

349

How Commercial Banks Use the World Wide Web: A Content Analysis.  

ERIC Educational Resources Information Center

New telecommunications vehicles expand the possible ways that business is conducted. The hypermedia portion of the Internet, the World Wide Web, is such a telecommunications device. The Web is presently one of the most flexible and dynamic methods for electronic information dissemination. The level of technological sophistication necessary to…

Leovic, Lydia K.

350

Adaptive layout template for effective web content presentation in large-screen contexts  

Microsoft Academic Search

Despite the fact that average screen size and resolution have dramatically increased, many of today's web sites still do not scale well in larger viewing contexts. The upcoming HTML5 and CSS3 standards propose features that can be used to build more flexible web page layouts, but their potential to accommodate a wider range of display environments is currently relatively unexplored.

Michael Nebeling; Fabrice Matulic; Lucas Streit; Moira C. Norrie

2011-01-01

351

Internet food marketing strategies aimed at children and adolescents: a content analysis of food and beverage brand web sites.  

PubMed

Americans are spending an increasing amount of time using "new media" like the Internet. There has been little research examining food and beverage Web sites' content and marketing practices, especially those that attract children and adolescents. The purpose of this study was to conduct a content analysis of food- and beverage-brand Web sites and the marketing techniques and advertising strategies present on these sites. The top five brands in eight food and beverage categories, 40 brands in total, were selected based on annual sales data from Brandweek magazine's annual "Superbrands" report. Data were collected using a standardized coding form. The results show a wide variety of Internet marketing techniques and advertising strategies targeting children and adolescents. "Advergaming" (games in which the advertised product is part of the game) was present on 63% of the Web sites. Half or more of the Web sites used cartoon characters (50%) or spokescharacters (55%), or had a specially designated children's area (58%) with a direct link from the homepage. With interactive media still in its developmental stage, there is a need to develop safeguards for children. Food and nutrition professionals need to advocate for responsible marketing techniques that will support the health of children. PMID:16963354

Weber, Kristi; Story, Mary; Harnack, Lisa

2006-09-01

352

Web-Based Screeners and Applications: Potential Tools for Improving Benefit Access and Program Efficiency. Washington, DC: U.S. Department of Health and Human Services, Office of Human Services Policy, Office of the Assistant Secretary for Planning and Evaluation  

Microsoft Academic Search

This issue brief draws on findings from eight case studies of web-based benefit access tools and provides a framework for thinking about their design and operation in order to improve efficiencies and increase benefit access.

Emily Sama-Miller; Jacqueline Kauff

2011-01-01

353

CMS System of DRM Technology Base that Use Web Contents Certification Code  

Microsoft Academic Search

From diversification of contents, CMS (contents Man- agement System) is operated variously for government of- ficial of contents. Present CMS plain applies a DRM tech- nology and is protecting contents copyright based on only position members. Therefore, global use of contents is lim- ited and use is impossible mutually and original copyright protection of contents is impossible. Therefore, in this

Young-bok Cho; Yong-zhen Li; Ning Sun; Sang-Ho Lee

2007-01-01

354

Special Collections and the New Web: Using LibGuides to Provide Meaningful Access  

ERIC Educational Resources Information Center

Librarians have long struggled to find user-friendly mediums to provide meaningful information to patrons using bibliographies, pathfinders, and subject guides with varying degrees of success. Content management systems, such as Springshare's LibGuides, have recently been developed to facilitate the creation of online subject guides. Special…

Lewis, Barbara; Griffin, Melanie

2011-01-01

355

Providing access to risk prediction tools via the HL7 XML-formatted risk web service.  

PubMed

Cancer risk prediction tools provide valuable information to clinicians but remain computationally challenging. Many clinics find that CaGene or HughesRiskApps fit their needs for easy- and ready-to-use software to obtain cancer risks; however, these resources may not fit all clinics' needs. The HughesRiskApps Group and BayesMendel Lab therefore developed a web service, called "Risk Service", which may be integrated into any client software to quickly obtain standardized and up-to-date risk predictions for BayesMendel tools (BRCAPRO, MMRpro, PancPRO, and MelaPRO), the Tyrer-Cuzick IBIS Breast Cancer Risk Evaluation Tool, and the Colorectal Cancer Risk Assessment Tool. Software clients that can convert their local structured data into the HL7 XML-formatted family and clinical patient history (Pedigree model) may integrate with the Risk Service. The Risk Service uses Apache Tomcat and Apache Axis2 technologies to provide an all Java web service. The software client sends HL7 XML information containing anonymized family and clinical history to a Dana-Farber Cancer Institute (DFCI) server, where it is parsed, interpreted, and processed by multiple risk tools. The Risk Service then formats the results into an HL7 style message and returns the risk predictions to the originating software client. Upon consent, users may allow DFCI to maintain the data for future research. The Risk Service implementation is exemplified through HughesRiskApps. The Risk Service broadens the availability of valuable, up-to-date cancer risk tools and allows clinics and researchers to integrate risk prediction tools into their own software interface designed for their needs. Each software package can collect risk data using its own interface, and display the results using its own interface, while using a central, up-to-date risk calculator. This allows users to choose from multiple interfaces while always getting the latest risk calculations. Consenting users contribute their data for future research, thus building a rich multicenter resource. PMID:23793601

Chipman, Jonathan; Drohan, Brian; Blackford, Amanda; Parmigiani, Giovanni; Hughes, Kevin; Bosinoff, Phil

2013-07-01

356

Are Personal Health Records Safe? A Review of Free Web-Accessible Personal Health Record Privacy Policies  

PubMed Central

Background Several obstacles prevent the adoption and use of personal health record (PHR) systems, including users’ concerns regarding the privacy and security of their personal health information. Objective To analyze the privacy and security characteristics of PHR privacy policies. It is hoped that identification of the strengths and weaknesses of the PHR systems will be useful for PHR users, health care professionals, decision makers, and designers. Methods We conducted a systematic review using the principal databases related to health and computer science to discover the Web-based and free PHR systems mentioned in published articles. The privacy policy of each PHR system selected was reviewed to extract its main privacy and security characteristics. Results The search of databases and the myPHR website provided a total of 52 PHR systems, of which 24 met our inclusion criteria. Of these, 17 (71%) allowed users to manage their data and to control access to their health care information. Only 9 (38%) PHR systems permitted users to check who had accessed their data. The majority of PHR systems used information related to the users’ accesses to monitor and analyze system use, 12 (50%) of them aggregated user information to publish trends, and 20 (83%) used diverse types of security measures. Finally, 15 (63%) PHR systems were based on regulations or principles such as the US Health Insurance Portability and Accountability Act (HIPAA) and the Health on the Net Foundation Code of Conduct (HONcode). Conclusions Most privacy policies of PHR systems do not provide an in-depth description of the security measures that they use. Moreover, compliance with standards and regulations in PHR systems is still low.

Fernandez-Aleman, Jose Luis; Toval, Ambrosio

2012-01-01

357

Now you can get there from here: creating an interactive Web application for accessing full-text journal articles from any location  

Microsoft Academic Search

This article will focus on the process of creating an interactive World Wide Web application that allows patrons the ability to access and retrieve full-text journal articles from any of nearly 6,500 unique electronic journal titles, which are delivered to their computer desktops, without geographic constraints.

John W Felts

2001-01-01

358

FirstSearch and NetFirst--Web and Dial-up Access: Plus Ca Change, Plus C'est la Meme Chose?  

ERIC Educational Resources Information Center

Compares and evaluates the differences between OCLC's dial-up and World Wide Web FirstSearch access methods and their interfaces with the underlying databases. Also examines NetFirst, OCLC's new Internet catalog, the only Internet tracking database from a "traditional" database service. (Author/PEN)

Koehler, Wallace; Mincey, Danielle

1996-01-01

359

Moor: web access to end-to-end data flow information at ESO  

NASA Astrophysics Data System (ADS)

All ESO Science Operations teams operate on Observing Runs, loosely defined as blocks of observing time on a specific instrument. Observing Runs are submitted as part of an Observing Proposal and executed in Service or Visitor Mode. As an Observing Run progresses through its life-cycle, more and more information gets associated to it: Referee reports, feasibility and technical evaluations, constraints, pre-observation data, science and calibration frames, etc. The Manager of Observing Runs project (Moor) will develop a system to collect operational information in a database, offer integrated access to information stored in several independent databases, and allow HTML-based navigation over the whole information set. Some Moor services are also offered as extensions to, or complemented by, existing desktop applications.

Chavan, Alberto M.; Peron, Michèle; Anwunah, Judith; Canavan, Tim; Dorigo, Dario; Kornweibel, Nick; Sogni, Fabio

2004-09-01

360

The OaPd System for Web Access to Large Astronomical Catalogues  

NASA Astrophysics Data System (ADS)

At the Padova Astronomical Observatory (OaPd), we are developing a system for managing large sets of astronomical data, such as the GSCII catalog that will be released in the near future. In this paper we describe the different parts of the retrieval system: the Database Management System (DBMS) containing the data and the meta-data of the catalogs, the CORBA services, the Java Servlets and finally the Java Applet Client. A brief description of the hardware and of the support software is also presented. The result is a system that allows one to access a set of astronomical catalogs using heterogeneous clients (i.e., Astrobrowse, StarCat). The first public release is expected in January 2001.

Benfante, L.; Volpato, A.; Baruffolo, A.; Benacchio, L.

361

Building Collaboration Applications that Mix Web Services Hosted Content with P2P Protocols  

Microsoft Academic Search

The most commonly deployed web service applications employ client-server communication patterns, with clients running remotely and services hosted in data centers. In this paper, we make the case for Service-Oriented Colla- boration (SOC) applications that combine service-hosted data with collaboration features implemented using peer- to-peer protocols. Collaboration features are awkward to support solely based on the existing web services technol-

Ken Birman; Jared Cantwell; Daniel Freedman; Qi Huang; Petko Nikolov; Krzysztof Ostrowski

2009-01-01

362

Remote Sensing Information Gateway: A free application and web service for fast, convenient, interoperable access to large repositories of atmospheric data  

NASA Astrophysics Data System (ADS)

EPA's Remote Sensing Information Gateway (RSIG) is a widely used free applet and web service for quickly and easily retrieving, visualizing and saving user-specified subsets of atmospheric data - by variable, geographic domain and time range. Petabytes of available data include thousands of variables from a set of NASA and NOAA satellites, aircraft, ground stations and EPA air-quality models. The RSIG applet is used by atmospheric researchers and uses the rsigserver web service to obtain data and images. The rsigserver web service is compliant with the Open Geospatial Consortium Web Coverage Service (OGC-WCS) standard to facilitate data discovery and interoperability. Since rsigserver is publicly accessible, it can be (and is) used by other applications. This presentation describes the architecture and technical implementation details of this successful system with an emphasis on achieving convenience, high-performance, data integrity and security.

Plessel, T.; Szykman, J.; Freeman, M.

2012-12-01

363

Distributed Architectures for High Performance and Privacy-Aware Content Generation and Delivery  

Microsoft Academic Search

The increasing heterogeneity of mobile client devices used to access the Web requires run-time adaptations of the Web contents. A significant trend in these content adapta- tion services is the growing amount of personalization re- quired by users. Personalized services are and will be a key feature for the success of the next generation Web, but they open two critical

Claudia Canali; Michele Colajanni; Riccardo Lancellotti

2006-01-01

364

Web-based discovery, access and analysis tools for the provision of different data sources like remote sensing products and climate data  

NASA Astrophysics Data System (ADS)

To provide different of Earth Observation products in the area of Siberia, the Siberian Earth System Science Cluster (SIB-ESS-C) was established as a spatial data infrastructure at the University of Jena (Germany), Department for Earth Observation. The infrastructure implements standards published by the Open Geospatial Consortium (OGC) and the International Organization for Standardization (ISO) for data discovery, data access and data analysis. The objective of SIB-ESS-C is to faciliate environmental research and Earth system science in Siberia. Several products from the Moderate Resolution Imaging Spectroradiometer sensor were integrated by serving ISO-compliant Metadata and providing OGC-compliant Web Map Service for data visualization and Web Coverage Services / Web Feature Service for data access. Furthermore climate data from the World Meteorological Organization were downloaded, converted, provided as OGC Sensor Observation Service. Each climate data station is described with ISO-compliant Metadata. All these datasets from multiple sources are provided within the SIB-ESS-C infrastructure (figure 1). Furthermore an automatic workflow integrates updates of these datasets daily. The brokering approach within the SIB-ESS-C system is to collect data from different sources, convert the data into common data formats, if necessary, and provide them with standardized Web services. Additional tools are made available within the SIB-ESS-C Geoportal for an easy access to download and analysis functions (figure 2). The data can be visualized, accessed and analysed with this Geoportal. Providing OGC-compliant services the data can also be accessed with other OGC-compliant clients.; Figure 1. Technical Concept of SIB-ESS-C providing different data sources ; Figure 2. Screenshot of the web-based SIB-ESS-C system.

Eberle, J.; Hese, S.; Schmullius, C.

2012-12-01

365

How to Serve Content to PDA Users on-the-Go  

ERIC Educational Resources Information Center

Fans of mobile devices are everywhere, and they are using their PDAs, smart phones, and mobile phones to access Web-based content. Chances are that they are trying to access your library's Web site or find library-based content for their devices. In this article, the author presents some tips on how to serve those who wants to grab some fast info…

Cuddy, Colleen

2006-01-01

366

Factor Structure of Content Preparation for E-Business Web Sites: Results of a Survey of 428 Industrial Employees in the People's Republic of China  

ERIC Educational Resources Information Center

To better fulfil customer satisfaction, a study of what content e-business web sites should contain is conducted. Based on background literature, a content preparation survey of 70 items was developed and completed by 428 white collar employees of an electronic company in mainland China. The survey aimed at examining the significant content

Guo, Yinni; Salvendy, Gavriel

2009-01-01

367

A web accessible scientific workflow system for transparent and reproducible generation of information on subsurface processes from autonomously sensed data  

NASA Astrophysics Data System (ADS)

Information on subsurface processes is required for a broad range of applications, including site remediation, groundwater management, fossil fuel production and CO2 sequestration. Data on these processes is obtained from diverse sensor networks, includes physical, hydrological and chemical sensors and semi permanent geophysical sensors (mainly seismic and resistivity). Currently, processing is done by specialists through the use of commercial and research software packages such as numerical inverse and forward models, statistical data analysis software and visualization and data presentation packages. Information is presented to stakeholders as tables, images and reports. Processing steps, data and assumptions used for information generation are mostly opaque to endusers. As data migrates between applications the steps taken in each application (e.g. in data reduction)are often only partly documented, resulting in irreproducible results. In this approach, interactive tuning of data processing in a systematic way (e.g. changing model parameters, visualization parameters or data used) or using data processing as a discovery tool is de facto impossible. We implemented a web accessible scientific workflow system for subsurface performance monitoring. This system integrates distributed, automated data acquisition from autonomous sensor networks with server side data management and information visualization through flexible browser based data access tools. Webservices are used for communication with the sensor networks and interaction with applications. This system was originally developed for a monitoring network at the Gilt Edge Mine Superfund site, but has now been implemented for a range of different sensor networks of different complexity. The workflow framework allows for rapid and easy integration in a modular, transparent and reproducible manner of a multitude of existing applications for data analysis and processes. By embedding applications in webservice wrappers existing applications can be used without any recoding. Webservices are used for application configuration, resource allocation and communication of data and parameters. We implemented both the statistical package R as well as geophysical inverse codes and hydrological forward models as webservices. This framework and implementation allows for reproducible, transparent result generation by a diverse user base through an easy to use web interface. The use of webservices allows this system to integrate seamlessly with current and future efforts in distributed computing.

Versteeg, R.; Richardson, A.; Thomas, S.; Lu, B.; Neto, J.; Wheeler, M.; Rowe, T.; Parashar, M.; Ankeny, M.

2005-12-01

368

Open-Access Electronic Textbooks: An Overview  

ERIC Educational Resources Information Center

Given the challenging economic climate in the United States, many academics are looking to open-access electronic textbooks as a way to provide students with traditional textbook content at a more financially advantageous price. Open access refers to "the free and widely available information throughout the World Wide Web. Once an article's author…

Ovadia, Steven

2011-01-01

369

Herb Yield and Bacoside-A Content of Field-Grown Bacopa monnieri Accessions  

Microsoft Academic Search

A field trial of five accessions of Bacopa monnieri (L.) Pennell was conducted during 1997 to 1998, at Lucknow, India, to standardize cultivation procedures for domestication of this medicinal herb. The accessions, monitored for growth and bacoside-A yields over 18 months, could be maintained as perennials, but growth properties were sensitive to the growing season. Loss of shoot biomass occurred

S. Mathur; M. M. Gupta; M. Ram; S. Sharma; S. Kumar

2002-01-01

370

The Analysis of the Optimal Contention Period for Broadband Wireless Access Network  

Microsoft Academic Search

In IEEE 802.16 MAC protocol, the performance of the system is affected by the size of the contention period, since bandwidth request messages are collided during a contention period allocated by a bandwidth allocation MAP message. We stochastically analyze the performance of the system to find the optimal size of the contention period in this paper. To obtain the optimal

Oh Sung-min; Jae-hyun Kim

2005-01-01

371

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

372

Building Online Communities. Take Your Site beyond Content: Construct a Society on the Web.  

ERIC Educational Resources Information Center

Discusses the establishment of online, or virtual, communities on the World Wide Web. Topics include corporate sites; community planning; virtual reality; games; America Online projects; MUDs (multiuser dungeons) and MOOs (multiuser object oriented); and a list of contacts for online community resources. (LRW)

Glaser, Mark

1997-01-01

373

Comparing Web-Based to Traditional Instruction for Teaching Special Education Content  

ERIC Educational Resources Information Center

Web-based instruction, including both online courses and online degree programs, offer flexibility to students and instructors and are now typical in higher education programs. Researchers compared WBI to traditional instruction for teaching undergraduate students about students with disabilities. Forty-four students participated in this study.…

O'Neal, Kelly; Jones, W. Paul; Miller, Susan P.; Campbell, Pamela; Pierce, Thomas

2007-01-01

374

The Electronic Guidebook: A Study of User Experiences Using Mobile Web Content in a Museum Setting  

Microsoft Academic Search

A study of fifteen is reported as part of a larger research project, The Electronic Guidebook, whose aims are to understand how the introduction of wireless technologies changes and augments user experiences at the Exploratorium, an interactive science museum. The main questions being addressed in this study are: How do users respond to a mobile web resource designed to improve

Sherry Hsi

2002-01-01

375

Global disease surveillance using social media: HIV\\/AIDS content intervention in web forums  

Microsoft Academic Search

Collecting potential data sources for use in proactively analyzing and evaluating strategies for syndromic surveillance and bio-defense have become critical issues in and challenges to infectious disease informatics [1]. Web forums link highly relevant information about patients' needs, disease pain, health conditions, and concerns for medical practice [2]. Health departments or medical service groups can use the information in the

Yungchang Ku; Chaochang Chiu; Yulei Zhang; Li Fan; Hsinchun Chen

2010-01-01

376

A Model Driven Process for Web-Based Instructional Content Development.  

ERIC Educational Resources Information Center

It is well established that Web-based courseware must not restrict itself to the mere delivery of instructional material, but must be grounded in some sound model of instruction and learning. This paper discusses one such model, based on the best of instructional design principles and tries to overcome two of the most serious problems that are…

Mudur, S. P.; Gharpure, Prachi; Rajan, Parvati

377

Genetic diversity of amylose content and RVA pasting parameters in 20 rice accessions grown in Hainan, China.  

PubMed

Starch physicochemical properties determine the eating and cooking quality of rice. The genetic diversity in the apparent amylose content (AAC) and pasting viscosity parameters of 20 geographically diverse rice accessions were investigated. It was found that AAC and pasting viscosities differed widely among different accessions, but each accession performed relatively stably across two environments. Analysis of variance (ANOVA) indicated that all traits were predominantly controlled by genotypic variance, but the genotype×environment interaction effects were also significant except for AAC and PT. Significant correlations were found for each parameter between 2years (P<0.001). Association mapping identified a total of 22 main-effect quantitative trait loci (QTLs) responsible for all traits except for CPV. This study showed that starch physicochemical properties of rice were highly stable and mainly controlled by genetic factors, and gave insight into the molecular improvement of eating quality using marker assisted breeding with the identified QTLs/genes. PMID:24837946

Tong, Chuan; Chen, Yaling; Tang, Fufu; Xu, Feifei; Huang, Yan; Chen, Hao; Bao, Jinsong

2014-10-15

378

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

379

A Turning Point Analysis from Mobile Web 1.0 to Mobile Web 2.0: Lessons from Mobile Content Start-Up Company Growth and Downturn in Japan  

Microsoft Academic Search

The rapid growth of the mobile Internet in Japan leveraged new content providers specializing in the mobile Web. With the saturation of the Japanese mobile Internet, many content providers have faced downturns in the new landscape. Some exceptions provide hints for turning point analysis, and new directions for consumer-based mobile business. The author describes the current mobile Internet business model

Toshihiko Yamakami

2008-01-01

380

SparTag.us: a low cost tagging system for foraging of web content  

Microsoft Academic Search

Tagging systems such as del.icio.us and Diigo have become important ways for users to organize information gathered from the Web. However, despite their popularity among early adopters, tagging still incurs a relatively high interaction cost for the general users. We introduce a new tagging system called SparTag.us, which uses an intuitive Click2Tag technique to provide in situ, low cost tagging

Lichan Hong; Ed H. Chi; Raluca Budiu; Peter Pirolli; Les Nelson

2008-01-01

381

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

382

Advocacy Oriented Behavior and Health Care Access: A Conceptual Model of Web-based Health Communication for Children with Juvenile Arthritis  

Microsoft Academic Search

Abstract JAHelp, a Web site development project (www.JAHelp.org), funded through a grant from the National Institute on Disability and Rehabilitation Research, postulates that by providing parents, caregivers and others with the information they need to advocate for children's access to health care and other resources, self-efficacy and associated health outcomes would improve. This paper describes a conceptual model that argues

Michael J. Grinfeld; Brian K. Hensel; Robin Hoecker

383

A web portal for accessing, viewing and comparing in situ observations, EO products and model output data  

NASA Astrophysics Data System (ADS)

The GreenSeas project (Development of global plankton data base and model system for eco-climate early warning) aims to advance the knowledge and predictive capacities of how marine ecosystems will respond to global change. A main task has been to set up a data delivery and monitoring core service following the open and free data access policy implemented in the Global Monitoring for the Environment and Security (GMES) programme. A key feature of the system is its ability to compare data from different datasets, including an option to upload one's own netCDF files. The user can for example search in an in situ database for different variables (like temperature, salinity, different elements, light, specific plankton types or rate measurements) with different criteria (bounding box, date/time, depth, Longhurst region, cruise/transect) and compare the data with model data. The user can choose model data or Earth observation data from a list, or upload his/her own netCDF files to use in the comparison. The data can be visualized on a map, as graphs and plots (e.g. time series and property-property plots), or downloaded in various formats. The aim is to ensure open and free access to historical plankton data, new data (EO products and in situ measurements), model data (including estimates of simulation error) and biological, environmental and climatic indicators to a range of stakeholders, such as scientists, policy makers and environmental managers. We have implemented a web-based GIS(Geographical Information Systems) system and want to demonstrate the use of this. The tool is designed for a wide range of users: Novice users, who want a simple way to be able to get basic information about the current state of the marine planktonic ecosystem by utilizing predefined queries and comparisons with models. Intermediate level users who want to explore the database on their own and customize the prefedined setups. Advanced users who want to perform complex queries and inventory searching and compare the data in their own way or with their own models.

Vines, Aleksander; Hamre, Torill; Lygre, Kjetil

2014-05-01

384

Rate of Change and other Metrics: a Live Study of the World Wide Web  

Microsoft Academic Search

Caching in the World Wide Web is based on two critical assumptions: that a significant fraction of requests reac- cess resources that have already been retrieved; and that those resources do not change between accesses. We tested the validity of these assumptions, and their dependence on characteristics of Web resources, includ- ing access rate, age at time of reference, content

Fred Douglis; Anja Feldmann; Balachander Krishnamurthy; Jeffrey C. Mogul

1997-01-01

385

Academic medical center libraries on the Web.  

PubMed

Academic medical center libraries are moving towards publishing electronically, utilizing networked technologies, and creating digital libraries. The catalyst for this movement has been the Web. An analysis of academic medical center library Web pages was undertaken to assess the information created and communicated in early 1997. A summary of present uses and suggestions for future applications is provided. A method for evaluating and describing the content of library Web sites was designed. The evaluation included categorizing basic information such as description and access to library services, access to commercial databases, and use of interactive forms. The main goal of the evaluation was to assess original resources produced by these libraries. PMID:9803298

Tannery, N H; Wessel, C B

1998-10-01

386

Construction of web-based nutrition education contents and searching engine for usage of healthy menu of children.  

PubMed

A diet habit, which is developed in childhood, lasts for a life time. In this sense, nutrition education and early exposure to healthy menus in childhood is important. Children these days have easy access to the internet. Thus, a web-based nutrition education program for children is an effective tool for nutrition education of children. This site provides the material of the nutrition education for children with characters which are personified nutrients. The 151 menus are stored in the site together with video script of the cooking process. The menus are classified by the criteria based on age, menu type and the ethnic origin of the menu. The site provides a search function. There are three kinds of search conditions which are key words, menu type and "between" expression of nutrients such as calorie and other nutrients. The site is developed with the operating system Windows 2003 Server, the web server ZEUS 5, development language JSP, and database management system Oracle 10 g. PMID:20126375

Hong, Soon-Myung; Lee, Tae-Kyong; Chung, Hea-Jung; Park, Hye-Kyung; Lee, Eun-Ju; Nam, Hye-Seon; Jung, Soon-Im; Cho, Jee-Ye; Lee, Jin-Hee; Kim, Gon; Kim, Min-Chan

2008-01-01

387

MedIEQ - Quality Labelling of Medical Web Content Using Multilingual Information Extraction  

Microsoft Academic Search

Quality of Internet health information is essential because it has the potential to benefit or harm a large number of people and it is therefore essential to provide consumers with some tools to aid them in assessing the nature of the information they are accessing and how they should use it without jeopardizing their relationship with their doctor. Organizations around

Miquel Angel MAYER; Vangelis KARKALETSIS; Kostas STAMATAKIS; Dagmar VILLARROEL; Christian THOMECZEK; Martin LABSKÝ; Timo HONKELA

388

Horizontal monitoring of soil water content using a novel automated and mobile electromagnetic access-tube sensor  

NASA Astrophysics Data System (ADS)

Advances in sensor technology continue to provide new and significant benefits to agriculture. An innovative approach for observing soil water dynamics in the subsurface is introduced using a mobile electromagnetic sensor prototype traveling through a horizontal PVC access tube. A series of tests for evaluating the prototype were designed and conducted to (i) determine the sensor's area of sensitivity (AOS), (ii) measure varied levels of soil water content along the tube and (iii) track temporal changes in soil water content under; (a) two drippers on a horizontal- and (b) multiple drippers on a sloped-soil surface (i.e., 6° slope). The AOS experiment suggested the sensor's fringing field extends to a radius of 5.5 cm from the pipe wall yielding an AOS of 181.3 cm2. Measured step-wise changes in soil water content along the tube were highly correlated to those of extracted core samples (R2 = 0.99 and RMSE = 0.012 cm3 cm-3). The drip emitter tests illustrated spatial hydrodynamics of water infiltration around the access tube. These results illustrate potential applications for this sensing approach, yielding one-dimensional monitoring of soil water along a horizontal line in the root zone or deeper subsurface. Future developments should explore performance in longer and potentially curvilinear pipes for environmental and engineering applications.

Sun, Y.; Zhou, H.; Qin, Y.; Schulze Lammers, P.; Berg, A.; Deng, H.; Cai, X.; Wang, D.; Jones, S. B.

2014-08-01

389

Reap what you sow: harvesting the deep Web  

Microsoft Academic Search

This article examines the growth of the invisible Web, and efforts underway to make its contents more accessible. Dynamic Web publishing is described. The Open Archives Metadata Harvesting Protocol is reviewed, as are projects related to OCLC’s implementation of the Open Archives Initiative. Recent Dublin Core activities are reported.

Norm Medeiros

2002-01-01

390

Relationship maintenance strategies on Fortune 500 company web sites  

Microsoft Academic Search

Purpose – The purpose of this paper is to examine how organizations enact positivity, openness, access, sharing of tasks, and networking through their web sites. The paper also aims to investigate whether, different types of industries display different levels of relationship strategy. Designs\\/methodology\\/approach – A content analysis of 286 web sites was conducted to determine how corporations use their site

Eyun-Jung Ki; Linda Childers Hon

2006-01-01

391

A Review of Ontologies with the Semantic Web in View.  

ERIC Educational Resources Information Center

Discusses the movement of the World Wide Web from the first generation to the second, called the Semantic Web. Provides an overview of ontology, a philosophical theory about the nature of existence being applied to artificial intelligence that will have a crucial role in enabling content-based access, interoperability, and communication across the…

Ding, Ying

2001-01-01

392

Total seed oil and fatty acid methyl ester contents of Cuphea accessions  

Microsoft Academic Search

Many Cuphea species have been identified as potential new sources of unique fatty acids for both the lubricant and soap and detergent industries. Current breeding programs have focused on improving agronomic traits to make Cuphea suitable for commercial production. Breeding programs are now focusing on altering total oil and fatty acid content with a special interest in lauric and capric

Winthrop B. Phippen; Terry A. Isbell; Mary E. Phippen

2006-01-01

393

The NASA ADS Abstract Service and the Distributed Astronomy Digital Library [and] Project Soup: Comparing Evaluations of Digital Collection Efforts [and] Cross-Organizational Access Management: A Digital Library Authentication and Authorization Architecture [and] BibRelEx: Exploring Bibliographic Databases by Visualization of Annotated Content-based Relations [and] Semantics-Sensitive Retrieval for Digital Picture Libraries [and] Encoded Archival Description: An Introduction and Overview.  

ERIC Educational Resources Information Center

Includes six articles that discuss a digital library for astronomy; comparing evaluations of digital collection efforts; cross-organizational access management of Web-based resources; searching scientific bibliographic databases based on content-based relations between documents; semantics-sensitive retrieval for digital picture libraries; and…

Kurtz, Michael J.; Eichorn, Guenther; Accomazzi, Alberto; Grant, Carolyn S.; Demleitner, Markus; Murray, Stephen S.; Jones, Michael L. W.; Gay, Geri K.; Rieger, Robert H.; Millman, David; Bruggemann-Klein, Anne; Klein, Rolf; Landgraf, Britta; Wang, James Ze; Li, Jia; Chan, Desmond; Wiederhold, Gio; Pitti, Daniel V.

1999-01-01

394

Daily Planet Redesign: eZ Publish Web Content Management Implementation  

NASA Technical Reports Server (NTRS)

This viewgraph presentation reviews the process of the redesign of the Daily . Planet news letter as a content management implementation project. This is a site that is an internal news site that acts as a communication vehicle for a large volume of content. The Objectives for the site redesign was: (1) Clean visual design, (2) Facilitation of publication processes, (3) More efficient maintenance mode, (4) Automated publishing to internal portal, (5) Better navigation through improved site IA, (6) Archiving and retrieval functionality, (7) Back to basics on fundamental business goals. The CM is a process not a software package

Dutra, Jayne E.

2006-01-01

395

Content Recommendation Based on Education-Contextualized Browsing Events for Web-Based Personalized Learning  

ERIC Educational Resources Information Center

The WWW is now in widespread use for delivering on-line learning content in many large-scale education settings. Given such widespread usage, it is feasible to accumulate data concerning the most useful learning experiences of past students and share them with future students. Browsing events that depict how past students utilized the learning…

Wang, Feng-Hsu

2008-01-01

396

The VirtPresenter Lecture Recording System: Automated Production of Web Lectures with Interactive Content Overviews  

ERIC Educational Resources Information Center

Lecture recordings can be a powerful addition to traditional lectures and they can even serve as a main content source in a number of didactic scenarios. If users can quickly locate relevant passages in a recording, the recording combines the ease of search that comes with electronic text based media with the authenticity and wealth of information…

Mertens, Robert; Ketterl, Markus; Vornberger, Oliver

2007-01-01

397

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

398

Content  

Cancer.gov

Introduction to SEER*Stat SEER*Stat Configuration Getting Help     How To Use This Help System     Printing Help     Web-based Tutorials     Technical Support     What's New? Data SEER*Stat Basics Frequency Session Rate Session Survival Session

399

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

400

GRASP [Genomic Resource Access for Stoichioproteomics]: comparative explorations of the atomic content of 12 Drosophila proteomes  

PubMed Central

Background “Stoichioproteomics” relates the elemental composition of proteins and proteomes to variation in the physiological and ecological environment. To help harness and explore the wealth of hypotheses made possible under this framework, we introduce GRASP (http://www.graspdb.net), a public bioinformatic knowledgebase containing information on the frequencies of 20 amino acids and atomic composition of their side chains. GRASP integrates comparative protein composition data with annotation data from multiple public databases. Currently, GRASP includes information on proteins of 12 sequenced Drosophila (fruit fly) proteomes, which will be expanded to include increasingly diverse organisms over time. In this paper we illustrate the potential of GRASP for testing stoichioproteomic hypotheses by conducting an exploratory investigation into the composition of 12 Drosophila proteomes, testing the prediction that protein atomic content is associated with species ecology and with protein expression levels. Results Elements varied predictably along multivariate axes. Species were broadly similar, with the D. willistoni proteome a clear outlier. As expected, individual protein atomic content within proteomes was influenced by protein function and amino acid biochemistry. Evolution in elemental composition across the phylogeny followed less predictable patterns, but was associated with broad ecological variation in diet. Using expression data available for D. melanogaster, we found evidence consistent with selection for efficient usage of elements within the proteome: as expected, nitrogen content was reduced in highly expressed proteins in most tissues, most strongly in the gut, where nutrients are assimilated, and least strongly in the germline. Conclusions The patterns identified here using GRASP provide a foundation on which to base future research into the evolution of atomic composition in Drosophila and other taxa.

2013-01-01

401

The Research Wizard: An Innovative Web Application for Patron Service  

Microsoft Academic Search

The Research Wizard, a database-driven Web application developed at the University of Nebraska at Omaha's University Library, provides opportunities to offer patron services in new and innovative ways. Running on an open source PHP\\/MySQL framework known as iDriver, the Wizard delivers customized content via topical keyword access. Library Web site maintenance frustrations have eased with this move to database-backed Web

Karen K. Hein; Marc W. Davis

2002-01-01

402

Making Web Sites an Effective Recruitment Asset: Content Management Solutions Keep Web Sites Fresh and Relevant--and Students Engaged. Noel-Levitz White Paper  

ERIC Educational Resources Information Center

Have you updated your Web site today? Is it possible that answering "yes" to this simple question is the key to the success of your marketing and recruiting efforts? In the current recruitment arena, the ability to update and maintain this one high-value asset (your Web site) might be the key to the potency of your institutional marketing effort.…

Noel-Levitz, Inc, 2009

2009-01-01

403

Accessibility (Section 508)  

Cancer.gov

All NCI websites must be accessible to users, as described in Section 508 of the Rehabilitation Act, and compatible with screen readers and other assistive technologies. Section 508 requires federal agencies to make their electronic and information technologies, including websites, conform to certain accessibility standards. The following are the standards that NCI Web developers must follow to comply with Section 508 requirements. These standards are based on the Access Board's Web Accessibility Standards, which should also be read by NCI Web developers.

404

Visual Analysis of Weblog Content  

SciTech Connect

In recent years, one of the advances of the World Wide Web is social media and one of the fastest growing aspects of social media is the blogosphere. Blogs make content creation easy and are highly accessible through web pages and syndication. With their growing influence, a need has arisen to be able to monitor the opinions and insight revealed within their content. In this paper we describe a technical approach for analyzing the content of blog data using a visual analytic tool, IN-SPIRE, developed by Pacific Northwest National Laboratory. We highlight the capabilities of this tool that are particularly useful for information gathering from blog data.

Gregory, Michelle L.; Payne, Deborah A.; McColgin, Dave; Cramer, Nick O.; Love, Douglas V.

2007-03-26

405

Gamma-linolenic acid and tocopherol contents in the seed oil of 47 accessions from several Ribes species.  

PubMed

Gamma-linolenic acid is an essential fatty acid for humans with delta-6-desaturase deficiency; it is a precursor of prostaglandins, prostacyclins, and tromboxanes; and it has antiinflammatory and antitumoral effects. Tocopherols are natural antioxidants with biological activity, heart/vascular, and cancer protective properties. The oil, gamma-linolenic acid, and tocopherol contents, as well as tocopherol composition, were investigated in the seed oil of a collection of 47 accessions belonging to various species of the genus Ribes. Differences for oil content among species were not significant. The highest total tocopherol content was found in R. nigrum (mean, 1716 mg kg(-1) oil), followed by R. rubrum (mean, 1442 mg kg(-1) oil). R. grossularia showed the lowest values for this trait (mean, 786 mg kg(-1) oil). The three species also differed strongly for tocopherol composition. R. rubrumwas distinguished by a higher concentration of delta-tocopherol (mean, 20.2%); R. grossularia displayed the highest percentage of gamma-tocopherol (mean, 70.0%), and R. nigrum showed the highest concentration for alpha-tocopherol (mean, 34.8%), the most biologically active among the four tocopherols. Regarding gamma-linolenic acid, the highest content was found in R. nigrum, which exhibited up to 15.8% of this essential fatty acid in the oil. R. grossularia and R. rubrum showed mean gamma-linolenic acid contents of 8% and 6.2%, respectively. The present study indicated that seeds of Ribes species, especially R. nigrum, could be used as sources of gamma-linolenic acid and natural vitamin E. PMID:11170598

Goffman, F D; Galletti, S

2001-01-01

406

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

407

Web 2.0 Articles: Content Analysis and a Statistical Model to Predict Recognition of the Need for New Instructional Design Strategies  

ERIC Educational Resources Information Center

This article presents a study of Web 2.0 articles intended to (a) analyze the content of what is written and (b) develop a statistical model to predict whether authors' write about the need for new instructional design strategies and models. Eighty-eight technology articles were subjected to lexical analysis and a logistic regression model was…

Liu, Leping; Maddux, Cleborne D.

2008-01-01

408

Model Driven Approach for Accessing Distributed Spatial Data Using Web Services - Demonstrated for Cross-Border GIS Applications  

Microsoft Academic Search

SUMMARY The paper addresses current research issues in the field of interoperability of heterogeneous GI systems. Special emphasis is placed on heterogeneity at the level of conceptual data models. This problem is discussed in the context of cross-border web-based GIS applications which involve the combination of spatial data on the same type of real world objects from different countries. Existing

Andreas DONAUBAUER; Astrid FICHTINGER; Matthäus SCHILCHER; Florian STRAUB

409

76 FR 59307 - Nondiscrimination on the Basis of Disability in Air Travel: Accessibility of Web Sites and...  

Federal Register 2010, 2011, 2012, 2013

...criteria defined at three levels (A, AA, and AAA) for determining Web site conformance...A and Level AA success criteria. Level AAA conformance provides a very high level of...satisfy all the Level A, Level AA, and Level AAA success criteria. Level AA...

2011-09-26

410

FIZ AutoDoc – a comprehensive solution for access to documents via corporate intranets and web portals  

Microsoft Academic Search

Purpose – The purpose of the paper is to explain in detail the service for document supply offered by FIZ Karlsruhe, the options available for its customisation and the interfaces that facilitate its integration into corporate intranets and web portals. Design\\/methodology\\/approach – The service offered by FIZ Karlsruhe is described in detail. Findings – FIZ AutoDoc is a comprehensive solution

Ahmed Rahali; Thomas Bausenwein

2007-01-01

411

Comparing the quality of accessing medical literature using content-based visual and textual information retrieval  

NASA Astrophysics Data System (ADS)

Content-based visual information (or image) retrieval (CBIR) has been an extremely active research domain within medical imaging over the past ten years, with the goal of improving the management of visual medical information. Many technical solutions have been proposed, and application scenarios for image retrieval as well as image classification have been set up. However, in contrast to medical information retrieval using textual methods, visual retrieval has only rarely been applied in clinical practice. This is despite the large amount and variety of visual information produced in hospitals every day. This information overload imposes a significant burden upon clinicians, and CBIR technologies have the potential to help the situation. However, in order for CBIR to become an accepted clinical tool, it must demonstrate a higher level of technical maturity than it has to date. Since 2004, the ImageCLEF benchmark has included a task for the comparison of visual information retrieval algorithms for medical applications. In 2005, a task for medical image classification was introduced and both tasks have been run successfully for the past four years. These benchmarks allow an annual comparison of visual retrieval techniques based on the same data sets and the same query tasks, enabling the meaningful comparison of various retrieval techniques. The datasets used from 2004-2007 contained images and annotations from medical teaching files. In 2008, however, the dataset used was made up of 67,000 images (along with their associated figure captions and the full text of their corresponding articles) from two Radiological Society of North America (RSNA) scientific journals. This article describes the results of the medical image retrieval task of the ImageCLEF 2008 evaluation campaign. We compare the retrieval results of both visual and textual information retrieval systems from 15 research groups on the aforementioned data set. The results show clearly that, currently, visual retrieval alone does not achieve the performance necessary for real-world clinical applications. Most of the common visual retrieval techniques have a MAP (Mean Average Precision) of around 2-3%, which is much lower than that achieved using textual retrieval (MAP=29%). Advanced machine learning techniques, together with good training data, have been shown to improve the performance of visual retrieval systems in the past. Multimodal retrieval (basing retrieval on both visual and textual information) can achieve better results than purely visual, but only when carefully applied. In many cases, multimodal retrieval systems performed even worse than purely textual retrieval systems. On the other hand, some multimodal retrieval systems demonstrated significantly increased early precision, which has been shown to be a desirable behavior in real-world systems.

Müller, Henning; Kalpathy-Cramer, Jayashree; Kahn, Charles E., Jr.; Hersh, William

2009-02-01

412

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

413

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

414

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

415

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

416

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

417

Effects of Prey Macronutrient Content on Body Composition and Nutrient Intake in a Web-Building Spider  

PubMed Central

The nutritional composition of diets can vary widely in nature and have large effects on the growth, reproduction and survival of animals. Many animals, especially herbivores, will tightly regulate the nutritional composition of their body, which has been referred to as nutritional homeostasis. We tested how experimental manipulation of the lipid and protein content of live prey affected the nutrient reserves and subsequent diet regulation of web-building spiders, Argiope keyserlingi. Live locusts were injected with experimental solutions containing specific amounts of lipid and protein and then fed to spiders. The nutrient composition of the spiders' bodies was directly related to the nutrient composition of the prey on which they fed. We then conducted an experiment where spiders were fed either high lipid or high protein prey and subsequently provided with two large unmanipulated locusts. Prior diet did not affect the amount or ratio of lipid and protein ingested by spiders when feeding on unmanipulated prey. Argiope keyserlingi were flexible in the storage of lipid and protein in their bodies and did not bias their extraction of nutrients from prey to compensate for previously biased diets. Some carnivores, especially those that experience frequent food limitation, may be less likely to strictly regulate their body composition than herbivores because food limitation may encourage opportunistic ingestion and assimilation of nutrients.

Hawley, Jesse; Simpson, Stephen J.; Wilder, Shawn M.

2014-01-01

418

Effects of prey macronutrient content on body composition and nutrient intake in a web-building spider.  

PubMed

The nutritional composition of diets can vary widely in nature and have large effects on the growth, reproduction and survival of animals. Many animals, especially herbivores, will tightly regulate the nutritional composition of their body, which has been referred to as nutritional homeostasis. We tested how experimental manipulation of the lipid and protein content of live prey affected the nutrient reserves and subsequent diet regulation of web-building spiders, Argiope keyserlingi. Live locusts were injected with experimental solutions containing specific amounts of lipid and protein and then fed to spiders. The nutrient composition of the spiders' bodies was directly related to the nutrient composition of the prey on which they fed. We then conducted an experiment where spiders were fed either high lipid or high protein prey and subsequently provided with two large unmanipulated locusts. Prior diet did not affect the amount or ratio of lipid and protein ingested by spiders when feeding on unmanipulated prey. Argiope keyserlingi were flexible in the storage of lipid and protein in their bodies and did not bias their extraction of nutrients from prey to compensate for previously biased diets. Some carnivores, especially those that experience frequent food limitation, may be less likely to strictly regulate their body composition than herbivores because food limitation may encourage opportunistic ingestion and assimilation of nutrients. PMID:24911958

Hawley, Jesse; Simpson, Stephen J; Wilder, Shawn M

2014-01-01

419

Web Services-Based Access to Local Clinical Trial Databases: A Standards Initiative of the Association of American Cancer Institutes  

PubMed Central

Electronic discovery of the clinical trials being performed at a specific research center is a challenging task, which presently requires manual review of the center’s locally maintained databases or web pages of protocol listings. Near real-time automated discovery of available trials would increase the efficiency and effectiveness of clinical trial searching, and would facilitate the development of new services for information providers and consumers. Automated discovery efforts to date have been hindered by issues such as disparate database schemas, vocabularies, and standards for intersystem exchange of high-level data, but adequate infrastructure now exists that makes possible the development of applications for near real-time automated discovery of trials. This paper describes the current state (design and implementation) of the Web Services Specification for Publication and Discovery of Clinical Trials as developed by the Technology Task Force of the Association of American Cancer Institutes. The paper then briefly discusses a prototype web service-based application that implements the specification. Directions for evolution of this specification are also discussed.

Stahl, Douglas C.; Evans, Richard M.; Afrin, Lawrence B.; DeTeresa, Richard M.; Ko, Dave; Mitchell, Kevin

2003-01-01

420

Towards integrating hypermedia on the Web  

Microsoft Academic Search

A major goal of this research is to present a framework for discussing issues and questions around Web Information Systems (WIS). WIS dynamically generate their contents, and thus require some mechanism to automatically infer metadata about WIS objects, infer access to relationships (i.e., links) among information objects, and provide hypermedia functionality such as annotation and ad hoc (user-declared) linking. The

Chao-Min Chiu; Michael Bieber; Qiang Lu

2002-01-01

421

A SMART groundwater portal: An OGC web services orchestration framework for hydrology to improve data access and visualisation in New Zealand  

NASA Astrophysics Data System (ADS)

Transboundary and cross-catchment access to hydrological data is the key to designing successful environmental policies and activities. Electronic maps based on distributed databases are fundamental for planning and decision making in all regions and for all spatial and temporal scales. Freshwater is an essential asset in New Zealand (and globally) and the availability as well as accessibility of hydrological information held by or held for public authorities and businesses are becoming a crucial management factor. Access to and visual representation of environmental information for the public is essential for attracting greater awareness of water quality and quantity matters. Detailed interdisciplinary knowledge about the environment is required to ensure that the environmental policy-making community of New Zealand considers regional and local differences of hydrological statuses, while assessing the overall national situation. However, cross-regional and inter-agency sharing of environmental spatial data is complex and challenging. In this article, we firstly provide an overview of the state of the art standard compliant techniques and methodologies for the practical implementation of simple, measurable, achievable, repeatable, and time-based (SMART) hydrological data management principles. Secondly, we contrast international state of the art data management developments with the present status for groundwater information in New Zealand. Finally, for the topics (i) data access and harmonisation, (ii) sensor web enablement and (iii) metadata, we summarise our findings, provide recommendations on future developments and highlight the specific advantages resulting from a seamless view, discovery, access, and analysis of interoperable hydrological information and metadata for decision making.

Klug, Hermann; Kmoch, Alexander

2014-08-01

422

Holistic Approaches to E-Learning Accessibility  

ERIC Educational Resources Information Center

The importance of accessibility to digital e-learning resources is widely acknowledged. The World Wide Web Consortium Web Accessibility Initiative has played a leading role in promoting the importance of accessibility and developing guidelines that can help when developing accessible web resources. The accessibility of e-learning resources…

Phipps, Lawrie; Kelly, Brian

2006-01-01

423

YEASTRACT: providing a programmatic access to curated transcriptional regulatory associations in Saccharomyces cerevisiae through a web services interface  

PubMed Central

The YEAst Search for Transcriptional Regulators And Consensus Tracking (YEASTRACT) information system (http://www.yeastract.com) was developed to support the analysis of transcription regulatory associations in Saccharomyces cerevisiae. Last updated in June 2010, this database contains over 48?200 regulatory associations between transcription factors (TFs) and target genes, including 298 specific DNA-binding sites for 110 characterized TFs. All regulatory associations stored in the database were revisited and detailed information on the experimental evidences that sustain those associations was added and classified as direct or indirect evidences. The inclusion of this new data, gathered in response to the requests of YEASTRACT users, allows the user to restrict its queries to subsets of the data based on the existence or not of experimental evidences for the direct action of the TFs in the promoter region of their target genes. Another new feature of this release is the availability of all data through a machine readable web-service interface. Users are no longer restricted to the set of available queries made available through the existing web interface, and can use the web service interface to query, retrieve and exploit the YEASTRACT data using their own implementation of additional functionalities. The YEASTRACT information system is further complemented with several computational tools that facilitate the use of the curated data when answering a number of important biological questions. Since its first release in 2006, YEASTRACT has been extensively used by hundreds of researchers from all over the world. We expect that by making the new data and services available, the system will continue to be instrumental for yeast biologists and systems biology researchers.

Abdulrehman, Dario; Monteiro, Pedro Tiago; Teixeira, Miguel Cacho; Mira, Nuno Pereira; Lourenco, Artur Bastos; dos Santos, Sandra Costa; Cabrito, Tania Rodrigues; Francisco, Alexandre Paulo; Madeira, Sara Cordeiro; Aires, Ricardo Santos; Oliveira, Arlindo Limede; Sa-Correia, Isabel; Freitas, Ana Teresa

2011-01-01

424

Web Site Usability Testing Involving People with Learning Disabilities Using Only Images and Audio to Access Information  

ERIC Educational Resources Information Center

The need for social inclusion, informed choice and the facilitation of independent living for people with learning disabilities (LD) is being emphasised ever more by government, professionals, academics and, indeed, by people with LD themselves, particularly in self-advocacy groups. Achieving goals around inclusion and autonomy requires access to…

Williams, Peter

2013-01-01

425

Using NASA's Giovanni Web Portal to Access and Visualize Satellite-Based Earth Science Data in the Classroom  

Microsoft Academic Search

One of the biggest obstacles for the average Earth science student today is locating and obtaining satellite- based remote sensing datasets in a format that is accessible and optimal for their data analysis needs. At the Goddard Earth Sciences Data and Information Services Center (GES-DISC) alone, on the order of hundreds of Terabytes of data are available for distribution to

S. A. Lloyd; J. G. Acker; A. I. Prados; G. G. Leptoukh

2008-01-01

426

Providing Fine-Grained Access Control For Mobile Programs Through Binary Editing  

Microsoft Academic Search

With the advent of WWW, there is considerable interest in programs that can migrate from one host to another and execute. For instance, Java programs are increasingly being us ed to add dynamic content to a web page. When a user accesses the web page through a browser, the browser migrates the Java program and executes it at the user's

Raju Pandey; Brant Hashii

1998-01-01

427

Usability Testing of a Smartphone for Accessing a Web-Based e-Diary for Self-Monitoring of Pain and Symptoms in Sickle Cell Disease  

PubMed Central

We examined the usability of smartphones for accessing a web-based e-Diary for self-monitoring symptoms in children and adolescents with sickle cell disease (SCD). One group of participants (n=10; mean age 13.1 ± 2.4 years; 5M; 5F) responded to questions using pre-completed paper-based measures. A second group (n=21; mean age 13.4 ± 2.4 years; 10M;11F) responded based on pain and symptoms they experienced over the previous 12 hours. The e-Diary was completed with at least 80% accuracy when compared to paper-based measures. Symptoms experienced over the previous 12 hours included feeling tired (33.3%), headache (28.6%), coughing (23.8%), lack of energy/fatigue (19.0%), yellowing of the eyes (19.0%), pallor (19.0%), irritability (19.0%), stiffness in joints (19.0%), general weakness (14.3%), and pain (14.3%), rating on average as 2.0 ± 1.7 (on 0 to 10 scale). Overall, sleep was good (8.1 ± 1.4 on the 0 to 10 scale). In conclusion, children with SCD were able to use smartphones to access a web-based e-Diary for reporting pain and symptoms. Smartphones may improve self-reporting of symptoms and communication between patients and their health care providers, who may consequently be able to improve pain and symptom management in children and adolescents with SCD in a timely manner.

Jacob, Eufemia; Stinson, Jennifer; Duran, Joana; Gupta, Ankur; Gerla, Mario; Lewis, Mary Ann; Zeltzer, Lonnie

2012-01-01

428

Usability testing of a Smartphone for accessing a web-based e-diary for self-monitoring of pain and symptoms in sickle cell disease.  

PubMed

We examined the usability of smartphones for accessing a web-based e-Diary for self-monitoring symptoms in children and adolescents with sickle cell disease (SCD). One group of participants (n = 10; mean age, 13.1 ± 2.4 y; 5 M; 5 F) responded to questions using precompleted paper-based measures. A second group (n = 21; mean age, 13.4 ± 2.4 y; 10 M; 11 F) responded based on pain and symptoms they experienced over the previous 12 hours. The e-Diary was completed with at least 80% accuracy when compared to paper-based measures. Symptoms experienced over the previous 12 hours included feeling tired (33.3%), headache (28.6%), coughing (23.8%), lack of energy/fatigue (19.0%), yellowing of the eyes (19.0%), pallor (19.0%), irritability (19.0%), stiffness in joints (19.0%), general weakness (14.3%), and pain (14.3%), rating on average as 2.0 ± 1.7 (on 0 to 10 scale). Overall, sleep was good (8.1 ± 1.4 on the 0 to 10 scale). In conclusion, children with SCD were able to use smartphones to access a web-based e-Diary for reporting pain and symptoms. Smartphones may improve self-reporting of symptoms and communication between patients and their health care providers, who may consequently be able to improve pain and symptom management in children and adolescents with SCD in a timely manner. PMID:22627570

Jacob, Eufemia; Stinson, Jennifer; Duran, Joana; Gupta, Ankur; Gerla, Mario; Ann Lewis, Mary; Zeltzer, Lonnie

2012-07-01

429

Correlated-Clustering Frame: A Holistic Method of Deep Web Schema Matching Based on Data Mining  

Microsoft Academic Search

A large number of deep Web data sources are only accessible through their query interfaces. For any domain of interest, there may be many such sources with varied query capabilities and content coverage. To obtain mass valuable information in deep Web, we need to integrate large heterogeneous information. Schema matching is a critical problem in the integration process. This paper

Yuchen Fu; Quan Liu; Yunlong Xu; Chao Zhang; Wenyun Zhou; Zhiming Cui

2009-01-01

430

78 FR 951 - Accessible Medical Device Labeling in a Standard Content and Format Public Workshop; Request for...  

Federal Register 2010, 2011, 2012, 2013

...Medical Device Labeling in a Standard Content and Format Public Workshop; Request for...encourage public comments regarding standard content and format for medical device labeling...during the general session. Standard content and format of full labeling and a...

2013-01-07

431

Measuring User-Created Content: Implications for the ICT Access and Use by Households and Individuals Surveys. OECD Digital Economy Papers, No. 139  

ERIC Educational Resources Information Center

This paper reviews recent measurement work on User-Created Content (UCC) undertaken in OECD countries. It shows that UCC is emerging as a significant area of economic and social activity worthy of consideration for official measurement and discusses the implications for the OECD Model Survey on ICT Access and Use by Households and Individuals.…

van Beuzekom, Brigitte

2008-01-01

432

An initial examination of ease of use for 2D and 3D information visualizations of web content  

Microsoft Academic Search

We present a discussion and initial empirical investigation of user-interface designs for a set of three Web browsers. The target end-user population we identified were experienced software engineers who maintained large Web sites or portals. The user study demonstrated the strengths and weaknesses of two conventional 2D browsers for this target user, as well as that of XML3D, a novel

Kirsten Risden; MARY P. CZERWINSKI; Tamara Munzner; Daniel B. Cook

2000-01-01

433

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

434

Architecture for a Web-based clinical information system that keeps the design open and the access closed.  

PubMed Central

We are developing the Patient Clinical Information System (PatCIS) project at Columbia-Presbyterian Medical Center to provide patients with access to health information, including their own medical records (permitting them to contribute selected aspects to the record), educational materials and automated decision support. The architecture of the system allows for multiple, independent components which make use of central services for managing security and usage logging functions. The design accommodates a variety of data entry, data display and decision support tools and provides facilities for tracking system usage and questionnaires. The user interface minimizes hypertext-related disorientation and cognitive overload; our success in this regard is the subject of on-going evaluation. Images Figure 1

Cimino, J. J.; Sengupta, S.; Clayton, P. D.; Patel, V. L.; Kushniruk, A.; Huang, X.

1998-01-01

435

Systematic review and evaluation of web-accessible tools for management of diabetes and related cardiovascular risk factors by patients and healthcare providers  

PubMed Central

Objective To identify and evaluate the effectiveness, clinical usefulness, sustainability, and usability of web-compatible diabetes-related tools. Data sources Medline, EMBASE, CINAHL, Cochrane Central Register of Controlled Trials, world wide web. Study selection Studies were included if they described an electronic audiovisual tool used as a means to educate patients, care givers, or clinicians about diabetes management and assessed a psychological, behavioral, or clinical outcome. Data extraction Study abstraction and evaluation for clinical usefulness, sustainability, and usability were performed by two independent reviewers. Results Of 12616 citations and 1541 full-text articles reviewed, 57 studies met inclusion criteria. Forty studies used experimental designs (25 randomized controlled trials, one controlled clinical trial, 14 before–after studies), and 17 used observational designs. Methodological quality and ratings for clinical usefulness and sustainability were variable, and there was a high prevalence of usability errors. Tools showed moderate but inconsistent effects on a variety of psychological and clinical outcomes including HbA1c and weight. Meta-regression of adequately reported studies (12 studies, 2731 participants) demonstrated that, although the interventions studied resulted in positive outcomes, this was not moderated by clinical usefulness nor usability. Limitation This review is limited by the number of accessible tools, exclusion of tools for mobile devices, study quality, and the use of non-validated scales. Conclusion Few tools were identified that met our criteria for effectiveness, usefulness, sustainability, and usability. Priority areas include identifying strategies to minimize website attrition and enabling patients and clinicians to make informed decisions about website choice by encouraging reporting of website quality indicators.

Bahniwal, Robinder; Laupacis, Andreas; Leung, Eman; Orr, Michael S; Straus, Sharon E

2012-01-01

436

Research and Teaching: WikiED--Using Web 2.0 Tools to Teach Content and Critical Thinking  

ERIC Educational Resources Information Center

WIKIed Biology is a National Science Foundation Transforming Undergraduate Education in Science, Technology, Engineering, and Mathematics interdisciplinary project in which the authors developed and implemented a model for student centered, inquiry-driven instruction using Web 2.0 technologies to increase inquiry and conceptual understanding in…

Frisch, Jennifer K.; Jackson, Paula C.; Murray, Meg C.

2013-01-01

437

Developing a Web 2.0-Based System with User-Authored Content for Community Use and Teacher Education  

ERIC Educational Resources Information Center

We report on an investigation into the design, development, implementation, and evaluation of an informational and instructional Website in order to generate guidelines for instructional designers of read/write Web environments. We describe the process of design and development research, the problem addressed, the theory-based solution, and the…

Cifuentes, Lauren; Sharp, Amy; Bulu, Sanser; Benz, Mike; Stough, Laura M.

2010-01-01

438

The Case for Creating a Scholars Portal to the Web: A White Paper.  

ERIC Educational Resources Information Center

Considers the need for reliable, scholarly access to the Web and suggests that the Association for Research Libraries, in partnership with OCLC and the Library of Congress, develop a so-called scholar's portal. Topics include quality content; enhanced library services; and gateway functions, including access to commercial databases and focused…

Campbell, Jerry D.

2001-01-01

439

Readability Levels of Health-Based Websites: From Content to Comprehension  

ERIC Educational Resources Information Center

Three of the national health education standards include decision-making, accessing information and analyzing influences. WebQuests are a popular inquiry-oriented method used by secondary teachers to help students achieve these content standards. While WebQuests support higher level thinking skills, the readability level of the information on the…

Schutten, Mary; McFarland, Allison

2009-01-01

440

Focused Crawling of the Deep Web Using Service Class Descriptions.  

National Technical Information Service (NTIS)

Dynamic Web data sources--sometimes known collectively as the Deep Web--increase the utility of the Web by providing intuitive access to data repositories anywhere that Web access is available. Deep Web services provide access to real-time information, li...

D. Rocco L. Liu T. Critchlow

2005-01-01

441

Web-based tools from AHRQ's National Resource Center.  

PubMed

The Agency for Healthcare Research and Quality (AHRQ) has made an investment of over $216 million in research around health information technology (health IT). As part of their investment, AHRQ has developed the National Resource Center for Health IT (NRC) which includes a public domain Web site. New content for the web site, such as white papers, toolkits, lessons from the health IT portfolio and web-based tools, is developed as needs are identified. Among the tools developed by the NRC are the Compendium of Surveys and the Clinical Decision Support (CDS) Resources. The Compendium of Surveys is a searchable repository of health IT evaluation surveys made available for public use. The CDS Resources contains content which may be used to develop clinical decision support tools, such as rules, reminders and templates. This live demonstration will show the access, use, and content of both these freely available web-based tools. PMID:18998797

Cusack, Caitlin M; Shah, Sapna

2008-01-01

442

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

443

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).

444

iFC²: an integrated web-server for improved prediction of protein structural class, fold type, and secondary structure content.  

PubMed

Several descriptors of protein structure at the sequence and residue levels have been recently proposed. They are widely adopted in the analysis and prediction of structural and functional characteristics of proteins. Numerous in silico methods have been developed for sequence-based prediction of these descriptors. However, many of them do not have a public web-server and only a few integrate multiple descriptors to improve the predictions. We introduce iFC² (integrated prediction of fold, class, and content) server that is the first to integrate three modern predictors of sequence-level descriptors. They concern fold type (PFRES), structural class (SCEC), and secondary structure content (PSSC-core). The server exploits relations between the three descriptors to implement a cross-evaluation procedure that improves over the predictions of the individual methods. The iFC² annotates fold and class predictions as potentially correct/incorrect. When tested on datasets with low-similarity chains, for the fold prediction iFC² labels 82% of the PFRES predictions as correct and the accuracy of these predictions equals 72%. The accuracy of the remaining 28% of the PFRES predictions equals 38%. Similarly, our server assigns correct labels for over 79% of SCEC predictions, which are shown to be 98% accurate, while the remaining SCEC predictions are only 15% accurate. These results are shown to be competitive when contrasted against recent relevant web-servers. Predictions on CASP8 targets show that the content predicted by iFC² is competitive when compared with the content computed from the tertiary structures predicted by three best-performing methods in CASP8. The iFC² server is available at http://biomine.ece.ualberta.ca/1D/1D.html . PMID:20730460

Chen, Ke; Stach, Wojciech; Homaeian, Leila; Kurgan, Lukasz

2011-03-01

445

2Way Text Classification for Harmful Web Documents  

Microsoft Academic Search

The openness of the Web allows any user to access almost any type of information. However, some information, such as adult con- tent, is not appropriate for all users, notably children. Additionally for adults, some contents included in abnormal porn sites can do ordinary people's mental health harm. In this paper, we propose an e-cient 2-way text fllter for blocking

Youngsoo Kim; Taekyong Nam; Dongho Won

2006-01-01

446

A Primer on Building Web Sites for the Blind.  

ERIC Educational Resources Information Center

Provides design options for making Web sites more accessible to blind or visually impaired users. Highlights include valid alt-tags on graphics; helpful link text; cascading style sheets (CSSs) to separate content from page structure; descriptive links to tell what a significant graphic is about; and not using text only as a valid alternative.…

Lowell, Nathan; Roberts, Stephanie

2001-01-01

447

Filtering Access to Internet Content at Higher Education Institutions: Stakeholder Perceptions and Their Impact on Research and Academic Freedom  

ERIC Educational Resources Information Center

Hardware and software filters, which sift through keywords placed in Internet search engines and online databases, work to limit the return of information from these sources. By their very purpose, filters exist to decrease the amount of information researchers can access. The purpose of this study is to gain insight into the perceptions key…

Orenstein, David I.

2009-01-01

448

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

449

Cancer Data Access System  

Cancer.gov

The Cancer Data Access System (CDAS) is a web portal that facilitates access to PLCO data. Investigators can register with CDAS and request access to data collected through December 31, 2009 for the first 13 years of participation for each subject in the PLCO trial. Newly diagnosed cancers and deaths continue to be collected and will be available in the future.

450

Learning to Construct Knowledge Bases from the World Wide Web  

Microsoft Academic Search

The World Wide Web is a vast source of information\\u000a accessible to computers, but understandable only to\\u000a humans. The goal of the research described here is to\\u000a automatically create a computer understandable knowledge\\u000a base whose content mirrors that of the World Wide Web.\\u000a Such a knowledge base would enable much more effective\\u000a retrieval of Web information, and promote new uses

Mark Craven; Dan DiPasquo; Dayne Freitag; Andrew K. McCallum; Tom M. Mitchell; Kamal Nigam; Sean Slattery

2000-01-01

451

Learning to extract symbolic knowledge from the World Wide Web  

Microsoft Academic Search

The World Wide Web is a vast source of information\\u000a accessible to computers, but understandable only to\\u000a humans. The goal of the research described here is to\\u000a automatically create a computer understandable world wide\\u000a knowledge base whose content mirrors that of the World\\u000a Wide Web. Such a knowledge base would enable much more\\u000a effective retrieval of Web information, and promote

Mark Craven; Dan DiPasquo; Dayne Freitag; Andrew K. McCallum; Tom M. Mitchell; Kamal Nigam; Sean Slattery

1998-01-01

452

New places of remembrance: individual web memorials in the Netherlands.  

PubMed

The creation of places of remembrance in virtual space constitutes a new ritual to commemorate the dead. The purpose of this study is to explore for whom individual Web memorials are meaningful places, who are commemorated, and whether they constitute a community of support. We analyzed 181 Dutch Web memorials and conducted content analysis of messages posted in four guestbooks. We found that parents, and in particular mothers, create Web memorials in remembrance of their deceased children. The memorials provide access to a community of social support, consisting primarily of strangers and/or people who have experienced a similar loss. PMID:24593006

Klaassens, Mirjam; Bijlsma, Maarten J

2014-01-01

453

Proposed Protocol to Solve Discovering Hidden Web Hosts Problem  

Microsoft Academic Search

Summary Web search engines use web crawlers that follow hyperlinks. This technique is ideal for discovering resources on the surface web but is often ineffective at finding deep web resources. The surface web is the portion of the World Wide Web that is indexed by conventional search engines whereas the deep web refers to web content that is not part

Mohamed A. Khattab; Yasser Fouad; Osama Abu Rawash

2009-01-01

454

Simulation, verification and automated composition of web services  

Microsoft Academic Search

Web services -- Web-accessible programs and devices - are a key application area for the Semantic Web. With the proliferation of Web services and the evolution towards the Semantic Web comes the opportunity to automate various Web services tasks. Our objective is to enable markup and automated reasoning technology to describe, simulate, compose, test, and verify compositions of Web services.

Srini Narayanan; Sheila A. McIlraith

2002-01-01

455

Globe Teachers Guide and Photographic Data on the Web  

NASA Technical Reports Server (NTRS)

The task of managing the GLOBE Online Teacher s Guide during this time period focused on transforming the technology behind the delivery system of this document. The web application transformed from a flat file retrieval system to a dynamic database access approach. The new methodology utilizes Java Server Pages (JSP) on the front-end and an Oracle relational database on the backend. This new approach allows users of the web site, mainly teachers, to access content efficiently by grade level and/or by investigation or educational concept area. Moreover, teachers can gain easier access to data sheets and lab and field guides. The new online guide also included updated content for all GLOBE protocols. The GLOBE web management team was given documentation for maintaining the new application. Instructions for modifying the JSP templates and managing database content were included in this document. It was delivered to the team by the end of October, 2003. The National Geophysical Data Center (NGDC) continued to manage the school study site photos on the GLOBE website. 333 study site photo images were added to the GLOBE database and posted on the web during this same time period for 64 schools. Documentation for processing study site photos was also delivered to the new GLOBE web management team. Lastly, assistance was provided in transferring reference applications such as the Cloud and LandSat quizzes and Earth Systems Online Poster from NGDC servers to GLOBE servers along with documentation for maintaining these applications.

Kowal, Dan

2004-01-01

456

"Hospital": A Five-Year-Old Samoan Boy's Access to Learning Curriculum Content in His New Zealand Classroom  

ERIC Educational Resources Information Center

Previous research suggests that young ESOL learners in mainstream English-medium classrooms are afforded limited opportunities to engage with curriculum content. This paper reports on a study of a five-year-old boy from Samoa who was just beginning to learn English in a mainstream New Zealand classroom. Interactions between the boy and his …

Vine, Elaine W.

2006-01-01

457

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

458

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

459

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

460

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

461

OneSearch Gives You Access to More Than 7,000 Publishers and Content Providers | Poster  

Cancer.gov

OneSearch, an exciting new resource from the Scientific Library, is now available to the NCI at Frederick community. This new resource provides a quick and easy way to search multiple Scientific Library resources and collections using a single search box for journal articles, books, media, and more. A large central index is compiled from more than 7,000 publishers and content providers outside the library’s holdings.

462

Health-Related Message Boards\\/Chat Rooms on the Web: Discussion Content and Implications for Pharmaceutical Sponsorships  

Microsoft Academic Search

This content analysis study examined health-related message boards to better understand who is using this on-line health information and support device and what topics they are discussing. Besides needing to understand this support and coping mechanism for individuals, this has become an increasingly important topic for health communicators to understand because the Health and Human Services' (HHS) Inspector General recently

Wendy Macias; Liza Stavchansky Lewis; Tenikka L. Smith

2005-01-01

463

The tower of Babel meets web 2.0: user-generated content and its applications in a multilingual context  

Microsoft Academic Search

This study explores language's fragmenting effect on user- generated content by examining the diversity of knowledge representations across 25 different Wikipedia language editions. This diversity is measured at two levels: the concepts that are included in each edition and the ways in which these concepts are described. We demonstrate that the diversity present is greater than has been presumed in

Brent Hecht; Darren Gergle

2010-01-01

464

Making Online Information Accessible to Students with Disabilities, Part II.  

ERIC Educational Resources Information Center

Focuses on the major HTML coding techniques used when making Web pages and online courses accessible to students with disabilities. Examples of accessibility features provided are not difficult for most Web authors to incorporate into their Web pages. With a few adaptations, Web page developers can make online information accessible to students…

Robertson, Janna Siegel; Harris, James Wallace

2003-01-01

465

Chiropractic wellness on the web: the content and quality of information related to wellness and primary prevention on the Internet  

PubMed Central

Background The Internet has become a common source of information for patients wishing to learn about health information. Previous studies found information related to back pain poor and often contradictory to current guidelines. Wellness has become a common topic in the field of chiropractic and accrediting agencies have standards on delivery of wellness-based content in college curricula as well as directives for clinical applications. The purpose of this study was to evaluate the quality of the information on the Internet using the terms "chiropractic wellness," or "wellness chiropractic". Methods Five commonly used search engines were selected and the first 10 sites found using the strategy above were evaluated by two raters. Demographic assessments of the sites were made along with whether they were Health on the Net Foundation (HON) certified, contained standard wellness content, mentioned any Healthy People Focus Areas, and other chiropractic topics. Kappa statistics compared inter-rater agreement. Results Potential patients appeared to be the audience 87% of the time and a private doctor of chiropractic appeared to be the typical site owner. The sites usually promoted the provider. No sites displayed HON certification logo nor did any appear to meet the HON certification criteria. Twenty-six sites (55%) promoted regular physical activity in some manner and 18 (38%) had information on health risks of tobacco. Four (9%) had mental health or stress-reduction content but none had information supportive of vaccination. Some had information contradictory to common public health measures. Conclusions Patients searching the Internet for chiropractic wellness information will often find useless information that will not help them maintain health or become well. Most simply market the chiropractic practice or allow for a patients to provide personal information in exchange for more 'wellness' information. More research should be done on how providers determine site content, pay any attention to the details on their sites, or agree with content as some appear to be prefabricated sites. Website content could be enhanced by sharing of information from reputable sources like US Centers for Disease Control, the National Institutes of Health and other authoritative sources. HON certification should also be sought.

2011-01-01

466

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

467

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

468

Evaluation of a Web Portal for Improving Public Access to Evidence-Based Health Information and Health Literacy Skills: A Pragmatic Trial  

Microsoft Academic Search

BackgroundUsing the conceptual framework of shared decision-making and evidence-based practice, a web portal was developed to serve as a generic (non disease-specific) tailored intervention to improve the lay public's health literacy skills.ObjectiveTo evaluate the effects of the web portal compared to no intervention in a real-life setting.MethodsA pragmatic randomised controlled parallel trial using simple randomisation of 96 parents who had

Astrid Austvoll-Dahlgren; Arild Bjørndal; Jan Odgaard-Jensen; Sølvi Helseth

2012-01-01

469

Web content mining for comparing corporate and third party onlinereporting: a case study on solid waste management  

Microsoft Academic Search

This study investigates the coverage of solid waste management on\\u000a\\u00091142 websites maintained by companies, news media and non-governmental\\u000a\\u0009organizations to validate an automated approach to content and language\\u000a\\u0009analysis. First, a frequency analysis of waste management terms sheds\\u000a\\u0009light on the breadth and depth of their environmental discourses,\\u000a\\u0009revealing that corporate and media attention to waste management\\u000a\\u0009is small

Irene Pollach; Arno Scharl; Albert Weichselbraun

2009-01-01

470

Hashing the Web for Better Reorganization  

Microsoft Academic Search

World Wide Web is a huge, distributed repository of global information. A large number of pages are added to the Web everyday\\u000a and these pages contain countless hyperlinks and volumes of access and usage information. Web mining is a technique to discover\\u000a knowledge from the Web documents and services. Web usage mining is a technique to discover useful access patterns

K. Venugopal; K. Srinivasa; L. Patnaik

471

Effectiveness of web-based education on Kenyan and Brazilian adolescents' knowledge about HIV/AIDS, abortion law, and emergency contraception: findings from TeenWeb.  

PubMed

Little evidence is available about the utility of web-based health education for students in low resource settings. This paper reports results from an evaluation of the TeenWeb project, a multi-year, web-based health education intervention implemented in two urban settings: Nairobi, Kenya (N=1178 school students) and Rio de Janeiro, Brazil (N=714 school students). A quasi-experimental, school-based pre-test/post-test design was implemented at each study site to determine if easy access to web-based reproductive health information, combined with intellectual "priming" about reproductive health topics, would result in improved knowledge and attitudes about topics such as condom use, access to HIV testing, emergency contraception and abortion laws. Students in web-access schools completed one web-based module approximately every 6-8 weeks, and in return, had access to the Internet for at least 30 min after completing each module. Although students were encouraged to access project-supplied web-based health information, freedom of web navigation was an incentive, so they could choose to access other Internet content instead. Most measures showed statistically significant differences between students in "web" and "comparison" conditions at post-test, but only about half of the differences were in the hypothesized direction. Results of an embedded experiment employing more directed feedback tripled the likelihood of correctly reporting the duration of emergency contraception effectiveness. Review of URL logs suggests that the modest results were due to inadequate exposure to educational materials. Future intervention should focus on teen's purposeful searching for health information when they are in personal circumstances of unmet health needs. PMID:18556101

Halpern, Carolyn Tucker; Mitchell, Ellen M H; Farhat, Tilda; Bardsley, Phil

2008-08-01

472

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

473

LCS Content Document Application  

NASA Technical Reports Server (NTRS)

My project at KSC during my spring 2011 internship was to develop a Ruby on Rails application to manage Content Documents..A Content Document is a collection of documents and information that describes what software is installed on a Launch Control System Computer. It's important for us to make sure the tools we use everyday are secure, up-to-date, and properly licensed. Previously, keeping track of the information was done by Excel and Word files between different personnel. The goal of the new application is to be able to manage and access the Content Documents through a single database backed web application. Our LCS team will benefit greatly with this app. Admin's will be able to login securely to keep track and update the software installed on each computer in a timely manner. We also included exportability such as attaching additional documents that can be downloaded from the web application. The finished application will ease the process of managing Content Documents while streamlining the procedure. Ruby on Rails is a very powerful programming language and I am grateful to have the opportunity to build this application.

Hochstadt, Jake

2011-01-01

474

On-line access to geoscience bibliographic citations  

USGS Publications Warehouse

On-line geoscience bibliographic citations and access points to citations are exponentially increasing as commercial, non-profit, and government agencies worldwide publish materials electronically. On-line bibliographic tools capture cited works, and open access content allows for freely obtained citations and documents. For this newsletter, citations from the numerous journals and books listed in the "Recent Papers" section of the EXPLORE newsletters from 2008-2011 were used to provide freely-accessible web sites to determine the availability of bibliographic information.

Wild, Emily C.

2012-01-01

475

NCI at Frederick: Accessibility  

Cancer.gov

The NCI at Frederick campus is making every effort to ensure that the information available on our website is accessible to all. If you use special adaptive equipment to access the Web and encounter problems when using our site, please let us know.

476

Towards adaptive Web sites: Conceptual framework and case study  

Microsoft Academic Search

Today's Web sites are intricate but not intelligent; while Web navigation is dynamic and idiosyncratic, all too often Web sites are fossils cast in HTML. In response, this paper investigates adaptive Web sites: sites that automatically improve their organization and presentation by learning from visitor access patterns. Adaptive Web sites mine the data buried in Web server logs to produce

Mike Perkowitz; Oren Etzioni

2000-01-01

477

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

478

WCDP: A protocol for web cache consistency  

Microsoft Academic Search

Cache consistency at web intermediaries is required for scal- able web content delivery. In this paper we describe the Web Content Distribution protocol (WCDP), which is an invali- dation and update protocol to provide cache consistency for a large number of frequently changing web objects. WCDP supports different levels of consistency: strong, delta, weak, and explicit. It supports a