The objective of this article is to analyze the searching and indexing techniques of educational search engines' implementation while treating future challenges. Educational search engines could greatly help in the effectiveness of e-learning if used correctly. However, these engines have several gaps which influence the performance of e-learning…

Purpose: The paper aims to assess the utility of non-agriculture-specific information systems, databases, and respective controlled vocabularies (thesauri) in organising and retrieving agricultural information. The purpose is to identify thesaurus-linked tree structures, controlled subject headings/terms (heading words, descriptors), and principal…

In this paper, we propose a syntax-based text retrieval system for on-line language learning and use a fast regular expression search engine as its main component. Regular expression searches provide more scalable querying and search results than keyword-based searches. However, without a well-designed index scheme, the execution time of regular…

Meta-analysis is a technique used in a variety of disciplines to combine and summarize the findings of previous research. One step in the production of a meta-analysis is a thorough literature search for relevant studies. A variety of methods can be used to increase the number of studies that are found. This study examines the extent to which some…

This paper compares the subject indexing on articles pertaining to Immanuel Kant, agriculture, and aging that are found simultaneously in Humanities Index, Academic Search Elite (EBSCO) and Periodicals Research II (Micromedia ProQuest), in order to show that there are substantial variations in the depth and quality of indexing in these databases.…

Describes a study evaluating the effectiveness of the Information Retrieval, Ltd. (IRL) Life Sciences Collection database in a field where BioSciences Information Service (BIOSIS) claims to offer comprehensive coverage of the international literature. The two databases are described, and the depth of controlled indexing is compared for the two

A comparison of the Magazine Index (MI) and the New York Times Information Bank (IB) showed the two data bases have little in common, mainly due to differences in focus, indexing, vocabulary, use online, and output. For business and government users, IB is the best choice; for more general and academic purposes, MI provides access to more…

Traditional library skills have been augmented since the introduction of online computerized database services. Because of the complexity of the field, forensic psychology can benefit enormously from the application of comprehensive bibliographic search strategies. The study reported here demonstrated the bibliographic results obtained when a…

Describes the creation of a prototype CD-ROM disc at the Earth Science Information Center (ESIC) that contained information on aerial photographs formerly held on computer output microfiche. Specifications are discussed, fields of information that were indexed are described, search and retrieval display capabilities are explained, and the results…

Computer vision offers a variety of techniques for searching for pictures in large collections of images. Appearance methods compare images based on the overall content of the image using certain criteria. Finding methods concentrate on matching subparts of images, defined in a variety of ways, in hope of finding particular objects. These ideas…

The emphasis of this text is that the problems of information retrieval are the intellectual ones of subject analysis and description. These problems are not easily solved by technology alone, although certain inroads are being made by knowledge-based expert systems and other computer aids to indexing. Linguistic approaches are also showing…

This review takes a critical approach in summarizing and evaluating the methodology and scope of catalog use studies, with emphasis on the subject approach to card catalog searching. Subject access is defined in this report; however, the process of subject searching, described repeatedly in library literature, has been based upon common sense…

Describes Information on Demand, an information broker that provides database and manual research on a fee for service basis, and accesses more than a dozen online systems. Relative strengths and weaknesses of particular systems and the criteria used to select databases and online vendors are identified and discussed. (CLB)

Discusses the future of electronic journals based on three previously published articles. Topics include copyright; costs; electronic searchability, including hypertext links and indexing; changes in the world of scholarly publishing; intellectual quality; social influences; printed journals versus electronic journals; and publishing patterns.…

Describes characteristics of subject gateways on the Web (i.e., facilities allowing easier access to network-based resources in a defined subject area) and compares them to search engines (e.g., AltaVista). The application of WHOIS++, centroids, query routing, and forward knowledge to searching several gateways simultaneously is outlined, and…