Search results

Search engines are used to locate information on the Web, but they cannot always adequately meet the information needs of users. Some schemes have been developed to solve this problem and meta‐tags are one of them. This article provides a comprehensive definition of meta‐tags and explains their function. Then, the possible attributes of meta‐tags and the most important meta‐tags are introduced in detail. It concludes that, although the meta‐tag has shortcomings, as do other schemes of information organizing, it can help improve the retrievability of information on the Web, and should be utilised by Web masters and search engine designers.

Discusses the availability of OCLC′s EPIC service through the Internet. Considers the cost benefits, as well as Internet access problems, connection via Internet, hidden costs, terminal troubles, communications software, and disconnecting. Concludes that the time spent overcoming difficulties with Internet connection will be worthwhile in cost terms, especially as more database vendors establish Internet connections.

To compare the performance of different search engines, highlighting the overlap and rank differences.

Presents results of an overlap test search series among traditional CD‐ROM indexing/abstracting databases since the mid‐1980s, web databases, and authors' own polysearch engine, and reviews Google Scholar.

Finds that overlap is minimal among web‐wide search engines which crawl and index the mostly unstructured open web; and that overlap among Google Scholar and the native search engines is far less than the ideal 100 per cent in the optimal context of crawling and indexing highly‐structured and metadata‐rich collections.

Reinforces the existing view that for comprehensive searches one must search more than one database. Highlights and recommends several very good search engine sites.

A ‘World Wide Web search engine’ is defined as a retrieval service, consisting of a database (or databases) describing mainly resources available on the World Wide Web (WWW), search software and a user interface also available via WWW. After intro ducing early Internet search engines, which are pertinent as precursors for the current range of WWW search engines, the problems of searching the WWW (link persistence, lack of integrated search software) and the resulting search engine types (keyword or directory) are analysed. Search engines of all types are then compared across their generic features (database content, retrieval software, and search interface), rather than on a search engine by search engine basis. Finally, wider information access issues aris ing from the nature of the Internet and web search engines are considered, and a general strategy for using web search engines is proposed.

An emerging, globally Web‐based Chinese language virtual library offers unprecedented content availability and user accessibility. Virtual and physical libraries are defined, and compared, in terms of bibliographical searching. Then, the size of the Chinese language virtual library is estimated and its future development is predicted. The quantitative analysis concentrates on the content of this virtual library through examining the subject directories of more than 100 of its search engines. The findings show that 20 percent of the subject categories provide 80 percent of online access activities. Many subject categories characterise values of the Chinese‐speaking world. Discussion continues with structural and functional analyses of Chinese language search engines that support this virtual library. Further, an analytic overview is presented of Chinese language applications that render the necessary and sufficient computational linguistic conditions for utilising Chinese language online resources.

Libraries of all types are in the midst of attempting to acquire the equipment and connections necessary to provide patron access to the Internet. The 1994 survey of public libraries by the National Commission on Libraries and Information Science indicates that 87.3 percent of all public libraries surveyed do not currently provide public access terminals; yet, informal surveys of library and information science literature, popular literature, and attendance at conferences and workshops indicate there is considerable interest in acquiring connections to the Internet, and many libraries are making concrete plans to do so. Still, libraries involved in the acquisition stage of Internet connectivity may have temporarily set aside consideration of policy issues relating to that access. However, the Internet is far more than merely another format, such as libraries dealt with when deciding to collect videos or CDs; the Internet is a new publishing format, communication tool, repository of information, and art form. It challenges our assumptions and policies regarding censorship, confidentiality, intellectual property, the reliability, stability, and verifiability of information—even our view of (virtual) reality! Providing public access to the Internet can affect every aspect of library policy making and demand new definitions and decisions.