Proposes an automated document classification system based on the Gray code, information-theoretic considerations, and requirements of classification systems including objectivity, inclusion, linearity, and increasing distance-dissimilarity. A measure to evaluate system performance is developed, and the proposed system is compared with the Library…

Discusses theoretical and practical progress made in the classification of information for retrieval in the last 20 years and suggests alternatives to the Dewey Decimal and Library of Congress classification systems. (JVP)

This paper examines how the nature of the World Wide Web and characteristics of networked resources affect subject access and analyzes the requirements of effective indexing and retrieval tools. The current and potential uses of existing tools and possible courses of future development are explored in the context of recent research. The first…

Precoordination of Library of Congress Subject Headings (LCSH), in both the LCSH thesaurus and online public access catalog (OPAC) browse displays, continues to be necessary for several reasons: (1) the meaning of thousands of LCSH headings depends on their word order in ways that cannot be captured by postcoordinate Boolean combinations or by…

Describes and evaluates several fiction classification systems from the perspective of how well they answer likely reader queries regarding subjects of novels, and their utility for browsing. The usefulness of subject headings for card catalogs and print and online indexes to enhance topical access to fiction is discussed. (Author/MBR)

The effectiveness of current subject cataloging practices for assigning geographical headings to local historical records in meeting the requirements of an escalating number of genealogist-patrons was examined. The findings indicated that catalogers use two general approaches in determining subject headings for local historical collections in the…