Discusses indexes for text databases and presents an efficient implementation of an index for text searching called PAT array, or suffix array, where the database is stored on secondary storage devices such as magnetic or optical disks. Additional hierarchical index structures and searching algorithms are proposed that improve searching time, and…

Describes the CD-ROM version of the "Congressional Masterfile," a comprehensive index of congressional committee reports and prints, hearings, and documents from 1789 to the present. The description of this product includes hardware and software considerations, user aids, and search options. The Masterfile CD-ROM is compared to print…

Describes and compares several general interest periodical indexes available on CD-ROM. Features described include target audience, coverage, updates, subscription prices, licensing, the availability of turnkey systems, search features and interfaces, screen displays, full-text support, and installation and support. The addresses of the companies…

Describes a study conducted at Jacksonville State University (Alabama) that compared the ERIC print index, "Resources in Education" (RIE), to the ERIC index in CD-ROM format. Accuracy of results, time savings, and user satisfaction are discussed, and copies of the questionnaire and survey are appended. (Author/LRW)

Describes a study that asked college students to compare CD-ROM and print versions of ERIC, PsycLit, and the Business Periodicals Index. The findings indicate that students found the CD-ROM versions to be faster and easier to use. Search strategies employed by students and the extent to which they required assistance are also discussed. (four…

Discusses problems encountered in creating a subject thesaurus for the "Ethnographic Bibliography of North America" that is adequate for both print and CD-ROM formats. Topics discussed include postcoordination versus precoordination of terms; precision and recall; natural language versus controlled vocabulary; free-text searching; and…

Opening with an introduction to the ERIC database, this guide provides a description of the organization and content of the SilverPlatter version of ERIC on CD-ROM. Citing examples of its uses, the guide explains the "Thesaurus of ERIC Descriptors," and provides a diagram of the computer keyboard used for searching ERIC using…

The lack of opportunity for high school sophomores to learn database searching was addressed by the implementation of a computerized magazine article search program. "Reader's Guide to Periodical Literature" on CD-ROM was used to train students in database searching during the time they were assigned to the library to do research papers…

Integrating comments from the literature about CD-ROMs, online searching, and information retrieval, this report describes the initial experience of using InfoTrac at Winona State University (WSU). After finding that students did not tend to order fee-based online searches, the WSU library provided access on a trial basis to bibliographic…

Discusses the issues surrounding the selection and mounting of University Microfilms'"Periodical Abstracts" on the University of Hartford's integrated library system. Argues that increased access provided by loading tapes on the mainframe computer outweigh the disadvantages of poor print features and narrower scope when compared to the…

Describes a survey of academic librarians that investigated issues relating to CD-ROM indexes, including print index cancellations; cost versus other factors in cancellations; database vendors' charging structure; CD-ROM durability; student preference for CD-ROM over print; and effective use without librarian assistance. (22 references) (LRW)

This purpose of this study was to determine which periodical index--InfoTrac or EBSCO Magazine Article Summaries--is the most appropriate for use by middle school students preparing required research projects. The study population consisted of randomly selected sixth, seventh, and eighth grade students (N=50) in a Cobb County (Georgia) middle…

Integrating the use of technology-based library resources into the curriculum is necessary for students to acquire vital information-seeking skills. Learning to select and use electronic information sources found on CD-ROM, mainframe computers, and via the Internet enables students to function better in today's information society. This paper…