Toward support for hypermedia on the World Wide Web

As organizations rush to embrace the World Wide Web as their primary application infrastructure, they should not bypass the benefit of hypermedia support. The Web's infrastructure can serve as an interface to all interactive applications and, over time, will become the graphical user interface model for new applications. Ubiquitous hypermedia support should become the jewel of the Web environment. Through Web integration, hypermedia could become an integral part of every interactive application. With the proper tools to support hypermedia in Web application development, it will become second nature for developers and individual authors to provide supplemental links and hypermedia navigation. However, as organizations adopt the Web as their primary application infrastructure, designers may use Java and other tools to recreate current application functionality, and not take advantage of the Web's hypermedia-augmented infrastructure. If users, designers, MIS departments and organizations don't demand hypermedia support, hypermedia may get lost in the frenzy of Web integration     

Distributed and cooperative information retrieval on the World Wide Web

A masss of heterogeneous,distributed and dynamic information on the World Wide Web(the Web) has resulted in “information overload“ .It‘s an important and urgent reserach issue to provide users with effective information retrieval service on the Web.Web search enginees attempt to solve this problem,yet their effect is far from satisfying.In this paper,a distributed and cooperative strategy for information retrieval on the Web is proposed to substitute the centralized mode adopted by the current search engines.Then a new information retrieval system model IRSM is presented.which supports the retrieval of metadata about web documents and uses Z39.50 standard protocol to unify the heterogeneous interfaces of uments and uses Z39.50 standard protocol to unify the heterogeneous interfaces of different systems.Based on that,a distributed and cooperative information refieval framework,called DCIRF,is designed to help users in fast and effective information retrieval on the Web.     

A framework of decision support systems for use on the World Wide Web

Decision making is one of the most important activities for human beings. Complex decision making problems are full of uncertainty and ambiguities. A large amount of data is needed and several strategies must be applied at the same time in order to get a good decision. Research about decision support systems has been proposed to help people effectively solve these kinds of problems. Recently, World Wide Web applications have grown very rapidly and have made a significant impact on computer systems. In this paper, we propose a framework for Internet computing on decision support systems by modifying traditional decision support systems on the World Wide Web. Modules of the proposed framework were also designed to meet the requirements of both decision support and Internet computing. An actual implementation of a travelling schedule domain was conducted to show the feasibility of the proposed framework. The proposed framework provides a feasible solution to building World Wide Web decision support systems in real applications.     

基于World Wide Web的决策支持模型研究

文中通过对基于Ｗｏｒｌｄ Ｗｉｄｅ Ｗｅｂ（ＷＷＷ）上建立决策支持电子环境的研究，利用中介代理的概念，在用户和技术的拥有者之间架起了一座桥梁，构成了决策网，从而使ＷＷＷ上的决策技术得到共享。讨论了其结构、性能和各种功能，为进一步研究ＷＷＷ上的决策支持提供了一条途径。     

WWW上的缓存技术

WWW上的缓存技术被认为是改进Web性能的有效技术之一，总观了缓存系统所要解决的问题，针对需要解决的问题，总结了目前为止所提出的各种缓存策略，最后概括了理想的WWW缓存系统应该具备的性能指标。     

Caching on the World Wide Web

With the recent explosion in usage of the World Wide Web, the problem of caching Web objects has gained considerable importance. Caching on the Web differs from traditional caching in several ways. The nonhomogeneity of the object sizes is probably the most important such difference. In this paper, we give an overview of caching policies designed specifically for Web objects and provide a new algorithm of our own. This new algorithm can be regarded as a generalization of the standard LRU algorithm. We examine the performance of this and other Web caching algorithms via event- and trace-driven simulation     

On the World Wide Web

ABSTRACT

An analysis of Web citations was performed to examine three aspects of scholarly and research communication: use of authoritative information, use of correct citation style, and availability of the cited sources for the purpose of verification. Results of the study indicate that a database or a repository of Web citations needs to be established.     

The World Wide Web

Abstract

The World Wide Web is increasingly being used by libraries as a way to extend traditional services to patrons. The Web can also be used as a tool to facilitate communications between library professionals and to deliver presentations, organize exhibits, and develop demonstration projects. The allocation of personal Web work space on a library server provides librarians with a means to experiment with using the medium and a place to publish information of interest to the library profession. This paper explores the uses of the Web to enhance communications between library professionals and addresses some of the issues associated with such uses.     

Publishing mathematics on the World Wide Web

This paper shows how mathematical concepts can be displayed on World Wide Web pages. A few of the most interesting solutions are outlined although a few others are missing and a few more will be invented very soon. It is for authors to decide which system is the most suitable for their purposes.     

Known-Item Searching on the World Wide Web

Abstract

With the explosion of the World Wide Web, numerous search engines have proliferated online, claiming to be the best, fastest, or most accurate. Though each product is slightly different from the others in its presentation and search architecture, what all are providing is keyword searching of the Web's millions of pages. However, there are circumstances, just like in a library catalog, where an individual may want to perform a known-item search rather than a keyword search. The purpose of this paper was to discover whether known-item searches are possible with some of the Web's most popular search engines, and if the results retrieved using such a search would be satisfactory to a user. The author tested and compared four major Web search engines, using the most sophisticated search techniques available. Thirty-nine sites were selected and searched by title, and ranked according to the relevance and order of the displayed results.     

Information retrieval on the World Wide Web

Effective search and retrieval are enabling technologies for realizing the full potential of the Web. The authors examine relevant issues, including methods for representing document content. They also compare available search tools and suggest methods for improving retrieval effectiveness     

Webvise: browser and proxy support for open hypermedia structuring mechanisms on the World Wide Web

This paper discusses how to augment the World Wide Web with an open hypermedia service (Webvise) that provides structures such as contexts, links, annotations, and guided tours stored in hypermedia databases external to the Web pages. This includes the ability for users collaboratively to create links from parts of HTML Web pages they do not own and support for creating links to parts of Web pages without writing HTML target tags. The method for locating parts of Web pages can locate parts of pages across frame hierarchies and it also supports certain repairs of links that break due to modified Web pages. Support for providing links to/from parts of non-HTML data, such as sound and movie, will be possible via interfaces to plug-ins and Java-based media players.The hypermedia structures are stored in a hypermedia database, developed from the Devise Hypermedia framework, and the service is available on the Web via an ordinary URL. The best user interface for creating and manipulating the structures is currently provided for the Microsoft Internet Explorer 4.x browser through COM integration that utilizes the Explorer's DOM representation of Web-pages. But the structures can also be manipulated and used via special Java applets and a pure proxy server solution is provided for users who only need to browse the structures. A user can create and use the external structures as `transparency' layers on top of arbitrary Web pages, the user can switch between viewing pages with one or more layers (contexts) of structures or without any external structures imposed on them.     

A caching relay for the World Wide Web

We describe the design and performance of a caching relay for the World Wide Web. We model the distribution of requests for pages from the web and see how this distribution affects the performance of a cache. We use the data gathered from the relay to make some general characterizations about the web.     

Using the World Wide Web for teaching improvement

The World Wide Web has impacted the educational model in a fundamental way and forced educators to think of ways that this technology can be used to improve teaching effectiveness. This paper describes an implementation of the continuous improvement philosophy in a graduate level Operations Analysis class by using the web to obtain immediate and systematic feedback from students on lecture and other course activities. The feedback obtained is analyzed to determine how the delivery and content of the course can be improved. In the short-term the response is to address immediate problems or difficulties encountered by students. In the long-term a fully searchable web site with references to readings, audio/visual modules of class lectures, problem solutions and frequently asked questions (FAQ) materials is to be developed. Technology issues and the lessons learned from the experiment are discussed.     

Structured Cooperative Authoring for the World Wide Web

Alliance is a structured cooperative authoring application that allowspeople spread out across different locations to work together on documentproduction and maintenance. It uses the World Wide Web as an infrastructureto accomplish distributed document management, asynchronous group awareness,and communication and cooperation among distributed authors. A particularfeature of Alliance is that it can handle temporary disconnections from thenetwork without disrupting the cooperative editing. In this article wereport our experience in designing and implementing Alliance, focusing onthe mechanisms that needed to be developed in order to support cooperativeauthoring using the Web.     

Mosaic and the World Wide Web

The World-Wide Web, an information service on the Internet, uses hypertext links to other textual documents or files. Users can click on a highlighted word or words in the text to provide additional information about the selected word(s). Users can also access graphic pictures, images, audio clips, or even full-motion video through hypermedia, an extension of hypertext. One of the most popular graphics-oriented browsers is Mosaic, which was developed at the National Center for Supercomputing Applications (NCSA) as a way to graphically-navigate the WWW. Mosaic browsers are currently available for Unix workstations running X Windows, PCs running Microsoft Windows, and Macintosh computers. Mosaic can access data in WWW servers, Wide Area Information Servers (WAIS), Gopher servers, Archie servers, and several others. The World-Wide Web is still evolving at a rapid pace. Distributed hypermedia systems on the Internet will continue to be an active area of development in the future. The flexibility of the WWW design, its use of hyperlinks, and the integration of existing WAIS and Gopher information resources, make the WWW ideal for future research and study. Highly interactive multimedia applications will require more sophisticated tools than currently exist. The most significant issue that needs to be resolved is the mismatch between WWW system capabilities and user requirements in the areas of presentation and quality of service     

Visual preview for link traversal on the World Wide Web

This paper demonstrates a technique for augmenting current World Wide Web browser implementations with features found in classical hypertext applications but unknown to the World Wide Web community until now. An example implementation is shown using Netscape Navigator 4.x using JavaScript, dynamic HTML and Java. The implementation follows an architecture based on a proxy server which acts as a gateway between the Internet and the browsing client. Based on the detailed example, support for further features is discussed.