Explores aspects of data fusion (DF) for information retrieval (IR) using a set of data from the Fifth International Conference on Text Retrieval (TREC5). Derives an equation for effective DF based on a geometric model and shows that the performance of a pair of IR schemes may be approximated by a quadratic polynomial. (Author/LRW)

The major accomplishments in the development of a management system for academic library collection development were (1) the development of translation tables which express HEGIS (Higher Education General Information Survey) taxonomy terms as sets of LC (Library of Congress) class numbers; (2) the use of these tables to compare library…

Discusses the role of computer keyboard operators in typesetting complex mathematical expressions used in instructional materials, examines the role of software in producing good quality output, and describes Expressionist, software for Macintosh hardware that can be used with desktop publishing and word processing software to enter mathematical…