Describes compression methods for components of full-text systems such as text databases on CD-ROM. Topics discussed include storage media; structures for full-text retrieval, including indexes, inverted files, and bitmaps; compression tools; memory requirements during retrieval; and ranking and information retrieval. (Contains 53 references.)…

Describes an examination of the effectiveness of retrieving and ranking records from citation indexes based on the number of references in common with an identified and relevant record. It is concluded that this retrieval method is potentially useful, especially in those searches backward and forward in time that are enabled by the design of…

Introduces the multicharacter trie as an index structure that can improve the time needed for retrieving full-text materials stored on CD-ROMs. The advantages of this structure compared to other structures are described, and experimental results comparing it to the widely used B+ tree and other structures used for full-text retrieval are…

Describes principles underlying the development of guides for electronic indexes such as the Catholic Periodical and Literature Index (CPLI): begin with basic steps, keep it simple, answer questions most frequently asked, be consistent, emphasize search techniques that use the strengths of the index. Includes a copy of the guide for the CPLI on…

The relative effectiveness of the CD-ROM information retrieval system, InfoTrac II, and the manual "Readers' Guide to Periodical Literature," was studied. Seventeen community college students were divided into two groups which researched the same questions either on CD-ROM or in the printed index. Results showed the "Readers'…

Compares "Library Literature" with "Library and Information Science Abstracts" (LISA) and outlines searching LISA on the SilverPlatter CD-ROM. Use of indexes and abstracts to aid information retrieval is explained; abstracting services are described; and five steps in writing an abstract are listed. Abstracts and annotations…

This 2-year project at the University of Texas at Arlington (UTA) was conducted to determine the feasibility of providing online periodical indexing to the journal holdings of the UTA libraries by demonstrating an extended use of the libraries' NOTIS Online Public Access Catalog (OPAC) to provide better access to local resources. Three approaches…

Argues that librarians should and can develop new electronic information products to meet their users' needs and describes the development of three such products at the Graduate School of Management Library at the University of California, Los Angeles (UCLA)--the RATIOS file, the REF-LITE Project, and the expert system Who?Biz. (EA)

The five papers in this collection focus on computerized legal databases and their content: (1) "Disk and Dat: Recent Developments in Legal Databases and Emerging Information Technologies in the United States" (Howard Hood, United States); (2) "Online Databanken zum EG-Recht und ihr Angebot (Online Databases for European Community…

This book is a comprehensive guide to help school librarians and teachers find and make the best use of government information the new electronic environment. The first chapter "Internet Basics and Federal Information on the Web: An Introduction" shows how to get started by discussing Internet basics, document formats commonly used by…

Traces the history of the National Library of Medicine with emphasis on research and development activities in biomedical communications and information science. Highlights include the areas of bibliographic control, library automation, information retrieval, knowledge management systems, and educational technologies. (CLB)

An examination of OCLC's EPIC service and standard video reference tools revealed that EPIC was more comprehensive in finding video titles on the popular or specialized topics of bonsai, genealogy, karate, and holography, because of its keyword searching ability on the massive OCLC database. (11 references) (EA)

This study examines the reliability of article coverage in the American Theological Library Association's (ATLA) Religion Database CD-ROM of two emerging theological fields: lesbian theology and womanist theology. Indexing predictability and consistency of coverage is important for the access of needed documents. There is concern that women's…