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1.
《国际互联网参考资料服务季刊》2013,18(1):51-66
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. 相似文献
2.
Querying the World Wide Web 总被引:9,自引:0,他引:9
Alberto O. Mendelzon George A. Mihaila Tova Milo 《International Journal on Digital Libraries》1997,1(1):54-67
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《国际互联网参考资料服务季刊》2013,18(4):33-41
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. 相似文献
4.
《Computer Networks and ISDN Systems #》1994,25(2):165-173
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. 相似文献
5.
Search engines are useful because they allow the user to find information of interest from the World Wide Web. However, most
of the popular search engines today are textual; they do not allow the user to find images from the Web. This paper describes
AMORE, a Web search engine that allows the user to retrieve images from the Web by specifying relevant keywords or a similar
image. Text and image search can also be combined. Moreover, we have developed a Query Result Visualization Environment that
allows the organization of the results if many images are retrieved. In this paper we present AMORE's user interface and explain
the technique for retrieving images visually similar to a user specified image. The method of automatically assigning relevant
keywords to the images is then explained. Finally, the architecture of the system as well as some interesting observations
of our experiences with AMORE are discussed.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
6.
随着网络化时代的到来,人们越来越关注Internet上的各种功能,为此本文对基于Inyternet的WWW网的组织,浏览器,地址编排和工作原理作了简要的概述。 相似文献
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Caching on the World Wide Web 总被引:2,自引:0,他引:2
Aggarwal C. Wolf J.L. Yu P.S. 《Knowledge and Data Engineering, IEEE Transactions on》1999,11(1):94-107
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 相似文献
9.
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 相似文献
10.
This paper describes the design and implementation of MPRES, a Multimedia Presentation Toolkit for the WWW. The WWW has seen phenomenal growth over the last couple of years. It has become a vast repository of multimedia information that is accessible to virtually anyone having a browser. MPRES is a multimedia presentation system that allows a user to compose and render a presentation consisting of objects referenced by their URLs (Uniform Resource Locators). It uses the concept of dynamic documents to render on a WWW browser, a sequence of multimedia scenarios, having objects of types such as audio, image, plaintext, HTML (Hypertext Markup Language) document and animation. MPRES Author, the authoring subsystem, allows the user to interactively test and compose such a presentation, using the Netscape Navigator to collect multimedia resources from the WWW. A presentation database stores the presentations and provides a convenient frontend for accessing them. © 1997 John Wiley & Sons,Ltd. 相似文献
11.
Yutaka Matsuo Yukio Ohsawa Mitsuru Ishizuka 《Journal of Intelligent Information Systems》2003,20(1):51-62
The pages and hyperlinks of the World Wide Web may be viewed as nodes and edges in a directed graph. In this paper, we propose a new definition of the distance between two pages, called average-clicks. It is based on the probability to click a link through random surfing. We compare the average-clicks measure to the classical measure of clicks between two pages, and show the average-clicks fits better to the users' intuition of distance. 相似文献
12.
《Computer Networks and ISDN Systems #》1997,29(8-13):1075-1082
Digestor is a software system which automatically re-authors arbitrary documents from the world-wide web to display appropriately on small screen devices such as PDAs and cellular phones, providing device-independent access to the web. Digestor is implemented as an HTTP proxy which dynamically re-authors requested web pages using a heuristic planning algorithm and a set of structural page transformations to achieve the best looking document for a given display size. 相似文献
13.
Looks at some practical approaches to improving the process of interacting with information distributed over the global information infrastructure, specifically for the World Wide Web. The introduction of NCSA Mosaic changed the way we get information over the Web. With the click of a button, Mosaic's graphical user interface made it possible to browse and retrieve literally any information accessible through the Web. This is true if you know the document's Universal Resource Locator (URL), an identifier expressing its location. You type in this address and sooner or later (depending on document size and traffic at the time), the document appears on your screen. If you do not know the URL, or even which documents contain the requested information, you might want to browse or search the Web. Interacting with information on the Web starts with browsing and searching; continues with selecting, digesting and assimilating information; terminates with generating new information; and begins anew. The user's needs and desires must occupy center stage during development of Web systems and sites. The approach chosen should let users interact easily and effectively with the information contained throughout large arrays of documents. Visualization, computer graphics, and just plain common sense in designing Web pages and presenting information make the process better for users. This article discusses how to construct effective presentations (Web pages) 相似文献
14.
互联网中隐私权的问题研究及其保护策略 总被引:1,自引:0,他引:1
随着互联网的广泛使用,有关互联网的各种问题引起了人们广泛的重视,其中,隐私权保护问题是焦点之一。本文首先提出了Internet上的隐私以问题,指出对隐私权侵犯的具体形式。接着,从社会生产方式的转变及社会交换关系方面分析了这一问题,指出其根本原因。最后,从技术方面,给出目前几种保护个人隐私权的方法。 相似文献
15.
M. Majewski 《Journal of Computer Assisted Learning》1999,15(2):139-148
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. 相似文献
16.
《国际互联网参考资料服务季刊》2013,18(1):5-14
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. 相似文献
17.
Information retrieval on the World Wide Web 总被引:1,自引:0,他引:1
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 相似文献
18.
WWW的信息监控研究 总被引:2,自引:0,他引:2
WWW是Internet上进行信息交换的系统。面对WWW日益严重的信息污染问题.信息监控势在必行。本文给出了WWW的信息监控模型,分析了信息监控的各种技术,讨论了当前信息监控面临的问题。 相似文献
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《国际互联网参考资料服务季刊》2013,18(2):23-29
Abstract The internal conflicts within an organization may hinder the successful design and set-up of a World Wide Web site. This article looks at the three most common routes that an organization may take to get on the Web, and presents guidelines for how to overcome the organizational politics that get in the way. 相似文献