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Utilizing 11 years of University of Saskatchewan circulation transactions, it is shown that P. M. Morse's Markov model of book use fits approximately 99 percent of data for whole collection and for three subject areas; contrary to his assumptions, one of the model's parameters is time dependent. Thirteen references are included. (EJS)

Proposes split model for index term distribution in document set that uses rank function for high frequency terms and size function for low frequency terms; the point of transition is determined either empirically or by rule. Distributions to describe index term exhaustivity and term co-occurrence are considered briefly. (36 references) (EJS)

Presents results of intensive biographical interviews with male and female directors of academic, government, and large public library systems across Canada to examine differences in career paths. Topics discussed include publication record; professional associations; mobility; preprofessional library work experience; administrative preparation; mentors; and sex discrimination. (16 references) (Author/LRW)

Studied the relationship between the vocabulary of user queries and the vocabulary of documents relevant to the queries, as well as the value of adding to the document description record in a retrieval system keywords from previous queries for which the document had proved useful. Eight references are listed. (FM)

The conventional method of preparing SDI (Selective Dissemination of Information) profiles often necessitates detailed interview sessions between the client and one or more information scientists. This research shows that by submitting samples of the client's recent professional reading material to automatic text analysis, SDI profiles can be prepared that result in significantly higher initial recall scores than do those prepared by conventional techniques; relevance scores are not significantly different. [ABSTRACT FROM AUTHOR]