Presents a method for identifying indexing terms from word stems, using discriminant analysis to distinguish terms which refer to topics from terms which do not refer to topics. A test of the method on the Harris Survey Question database is discussed. Included are 11 data tables and a reference list. (Author/JL)

Discusses ways to improve quality of retrieval systems that depend on use of truncated words or quasi-word stems as indexing vocabulary. Problems of generalizability and stability of discriminant function analysis for selecting good topical terms in database drawn from abstracts of Harris Survey press releases are addressed. References are cited.…

Entries in the "Linguistic Bibliography for the Year 1967" (LB) were tabulated in order to determine the statistical characteristics of periodical coverage within each subject and language category in the LB's table of contents. The periodicals for which entries were tabulated included 998 journals and series, of which 632 are noted at least once…