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"隐形Web"资源的利用 总被引：3，自引：0，他引：3
由于Invisible Web中具有高质量的信息内容，它们覆盖多个主题领域，并且这些数据通常又是采用数据库来管理的，用户检索其中的信息时可以得到较高的“检全率”和“检准率”，因此，学术图书馆应该将Invisible Web作为重要的信息源。本文主要讨论学术图书馆利用Invisible Web的方法，诸如利用网上备种现成的“隐形Web”网关、根据本馆的馆藏发展政策建立恰当的Subject Gateway、开发新的信息抽取技术等。 相似文献
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《Journal of Web Librarianship》2013,7(3):239-262
Although the library's Web site has become a standard tool for seeking information and conducting research in academic institutions, there are a variety of ways libraries approach the often challenging—and sometimes daunting—process of Web site development and maintenance. Three librarians at Western Michigan University explored issues related to this topic by conducting a Web-based survey, which was sent to two librarians—Web services and reference/public services—at 149 academic institutions. Survey findings are discussed, including references to Web departments and committees, priority setting, Web authoring, soliciting input, outsourcing, content management systems, redesigns, and user involvement. The participants’ insights regarding the greatest challenges and what seems to be working or not working well are also outlined, in addition to the authors’ suggestions for future research in this area. 相似文献
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Susan Shultz 《Journal of Business & Finance Librarianship》2013,18(1):25-30
ABSTRACT In this article Jenkins and Beall, librarians at Auburn University, have identified free Web sites for providing answers to business reference questions most frequently asked in academic libraries. The authors determined these questions by polling other business librarians, researching the topic on the Internet and in business literature, and drawing upon their business reference backgrounds. Web sites were selected by searching the Internet extensively, querying other business librarians and business faculty, combing numerous business academic library Web pages, and experience by the authors in answering business reference questions via the Web. The researchers sought answers and noted productive sites for each question. Jenkins and Beall expect this article will help other librarians determine the most useful Internet sites for answering business reference questions. They also hope this research will provide guidelines for librarians in developing solid lists of essential Web sites for business researchers. 相似文献
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《Journal of Web Librarianship》2013,7(2):80-95
Creating a learnable, effective, and user-friendly library Web site hinges on providing easy access to search. Designing a search interface for academic libraries can be particularly challenging given the complexity and range of searchable library collections, such as bibliographic databases, electronic journals, and article search silos. Library Web designers must decide whether to present users with a single search interface—one that searches across content silos by default—or to offer an interface that exposes the various silos available. Designers must also contend with the user's entire search experience and determine how search should appear on the library home page as well as in global navigation systems. In the spring of 2010, the North Carolina State University Libraries sought to answer search design questions for an upcoming Web site design effort. The Libraries evaluated two different search interfaces to determine whether a tabbed search approach with options to pre-select silos is an effective design for end users. Findings show that a tabbed search interface is an effective design device for presenting multiple silos. This study outlines the methods the North Carolina State University Libraries used to conduct usability testing as well as observations, findings, and recommendations about effective design of search on academic library Web sites. 相似文献
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Web2.0对编目工作的影响 总被引：2，自引：0，他引：2
Web2．0的研究和讨论已经引起了图书情报界的巨大热情。Web2．0作为下一代的互联网，会对各个方面造成巨大的影响，编目工作也不例外。本文从Web2．0对编目环境、编目技术、编目方式、编目内容等方面的影响进行了讨论，指出Web2．0环境下的编目工作将为知识组织的实现举有力的支持。 相似文献
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Web网页识别算法研究 总被引：7，自引：1，他引：6
WWW上的文本信息挖掘工作是网络信息处理领域的新课题。本文研究了两种机器学习算法———Rocchio算法和Widrow Hoff算法在Web网页识别领域中的应用 ,并对几种网页识别算法进行了比较分析 相似文献
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针对网页主题信息抽取不够精确的问题,提出一种新型的定义和量化主题信息的方法,即把主题信息分为三种信息形式并对不同形式的信息采用不同的方法进行量化计算。基于上述思想,结合DOM规范和分块思想,在DOM树的基础上提出IB-DOM树,并采用分治思想,先定位到包含主题信息的区域,后过滤噪音信息。实验证明本文提出的方法能够较好地解决主题信息自动提取存在的信息完整性和准确性的矛盾。 相似文献
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W eb信息资源使得数字图书馆的馆藏资源更加丰富、庞大和复杂。XML是数字图书馆W eb信息资源有效整合的先进技术。文章在概述数字图书馆W eb信息资源整合及其目标、原则的基础上,分析了XML技术对于数字图书馆W eb信息资源整合的优势,论述了基于XML的数字图书馆W eb信息资源整合系统的功能及其实现,探讨了数据挖掘技术在数字图书馆W eb信息资源整合中的应用。 相似文献
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《Journal of Web Librarianship》2013,7(2):89-109
The study's purpose was to investigate the views and opinions of librarians about the implementation of Web 2.0 technologies into library operations and services. The Delphi technique was chosen as the method of inquiry in this study, in which a group of panelists graded the desirability and probability of a list of statements. Thirty-nine librarians from United States and Canada participated in the study by answering the questionnaire. The study consisted of two rounds. In the first, participants were asked to grade seventeen statements and answer four open questions posted on a Web site. In the second round, participants were asked to provide an explanation for answers that fell outside of the consensus. The study investigated the panelists’ views on the following issues: (a) the changing nature of libraries and of the information profession, (b) user-generated content at the library, (c) the library's role as a learning center, and (d) adoption of Web 2.0 technologies in libraries. Participants’ answers also revealed issues with the marketing of library services. Findings revealed a big difference between what participants viewed as desirable and what they thought as probable for most issues. Furthermore, participants were skeptical on the ability and willingness of librarians and libraries to make the necessary changes to adapt to the new information reality brought on by Web 2.0 technologies. 相似文献
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网络信息生态中Web虚假信息的传播特征分析 总被引：1，自引：0，他引：1
面对网络媒体混乱不堪的信息生态状况，互联网信息管理受到各国政府及相关网络组织密切注意，网络信息生态治理已成为目前迫切需要解决的重要课题。文章着重对Web网络虚假信息的传播特征进行分析，目的是为网络生态治理策略的选择提供支持。 相似文献
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《The Reference Librarian》2013,54(74):91-101
Summary Among the many ways the World Wide Web has changed libraries are the additional tools gained by librarians and library users for answering reference questions. In addition to the growing number of licensed resources providing the full text of articles from newspapers, magazines, academic journals, and reference works are the millions of free Web sites offering an incredible variety of information about everything. Locating the most useful of these sites and organizing them into categories on library Web sites can be enormously beneficial both to patrons and libraries. After deciding to make their sites reference portals, librarians must make a number of important decisions. 相似文献
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《Journal of Web Librarianship》2013,7(4):567-577
ABSTRACT Oakland University's Kresge Library first launched its Web site in 1996. The initial design and subsequent contributions were originally managed by a single Webmaster. In 2002, the library restructured its Web content creation and management to a distributed, collaborative method with the goal of increasing the amount, accuracy, and timeliness of the information available on the library Web site. The new model was successful, resulting in a significant increase in both the amount and timeliness of the information presented on the library Web site. This article details the fundamental structural changes to how the Web site was managed and the rationale behind it. 相似文献
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《Journal of Web Librarianship》2013,7(2-3):429-455
ABSTRACT Can we use the methods of Web usability testing to learn about library instruction? This article is among the first in the field trying to establish a link between usability and instruction. The author discusses useful insights that Web usability can bring to our pedagogy as well as to the efficiency of library instruction. The result of a Web usability study conducted at LaGuardia Community College in 2005 are examined. Findings suggest direct relationships between what is being taught in library instruction sessions and how students browse and search library resources. The author discusses vocabulary test results and draws some parallel with students' success at finding information on the library Web site. Finally, a conceptual model of library instruction assessment through usability studies is presented. The author hopes to provide an innovative approach to library instruction assessment. 相似文献
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《Journal of Web Librarianship》2013,7(4):404-417
Libraries, along with other information service institutions, have entered a digital era in which resources are presented electronically through various digital platforms. The library Web site functions as the main source of information to patrons as well as a community outreach tool. Many library services now either succeed or fail based on how well users interact with the institution's Web site. In order to evaluate the effectiveness of library services, it thus becomes important for libraries to measure the performance of library Web sites. Web analytics is the ideal tool to answer questions regarding the evaluation of Web site performance. However, Web analytics can be hard to understand for those who do not have the time to familiarize themselves with all the terms and data. Writing a thorough Web analytics report can help make Web analytics easier to digest for administrators or Web site stakeholders.This tutorial provides step-by-step instructions on how to craft a Web analytics report. It provides suggestions on visualizing statistics, interpreting data, and customizing the report based on a real experience. The tutorial is facilitated with customized figures, charts, and tables from a real Web analytics report on the Texas Tech University Libraries Web site and concludes with recommendations on presenting the report to the administration and stakeholders. 相似文献
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The number of Web users whose first language is not English continues to grow, as does the amount of content provided in languages other than English. This poses new challenges for actors on the Web, such as in which language(s) content should be offered, how search tools should deal with mono- and multilingual content, and how users can make the best use of navigation and search options, suited to their individual linguistic skills. How should these challenges be dealt with? Technological approaches to non-English (or in general, cross-language) Web search have made large progress; however, translation remains a hard problem. This precludes a low-cost but high-quality blanket all-language coverage of the whole Web. In this paper, we propose a user-centric approach to answering questions of where to best concentrate efforts and investments. Drawing on linguistic research, we describe data on the availability of content and access to it in first and second languages across the Web. We then present three studies that investigated the impact of the availability (or not) of first-language content and access forms on user behaviour and attitudes. The results indicate that non-English languages are under-represented on the Web and that this is partly due to content-creation, link-setting and link-following behaviour. They also show that user satisfaction is influenced both by the cognitive effort of searching and the availability of alternative information in that language. These findings suggest that more cross-language tools are desirable. However, they also indicate that context (such as user groups’ domain expertise or site type) should be considered when tradeoffs between information quality and multilinguality need to be taken into account. 相似文献
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Web数据挖掘的原理、方法及用途 总被引：14，自引：0，他引：14
Ｗeb数据挖掘是将数据挖掘技术和理论应用于对WWW资源进行挖掘的一个新兴的研究领域,本文介绍了Web数据挖掘的基本概念，分类，并给出Web数据挖掘的基本原理，基本方法，最后指出Web数据挖掘的用途，展望了其美好的发展前景。 相似文献
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网络链接作为互联网的＂灵魂＂,使得整个网络连成了一个整体,从根本上改变了传统信息传播方式和阅读方式,但网络链接在方便人们获取信息的同时,也使权利人的许多合法权益被暴露或被侵害。本文就网络链接引发的著作权法律问题进行了研究和探讨。 相似文献