Two statistical measures are used to compare the Library of Congress and Dewey Decimal Classification systems by applying them to the library science portions of the two systems using a database drawn from MARC records. It is concluded that the measures characterize two different properties of dispersion. (Author/EM)

Describes the substantial changes in existing catalog formats, products, and the National Bibliography entailed in the British Library's commitment to AACR2 and Dewey 19. The conversion involved not only headings but an algorithmic conversion of the descriptive cataloging. Included are the impact on services, retrospective conversion, and common…

Recommends an expansion of MARC codes for decimal class numbers to enhance automated subject retrieval. Five values for a second indicator and two new subfields are suggested for encoding hierarchical relationships among decimal class numbers. Additional subfields are suggested to enhance retrieval through analysis of synthesized numbers in…

Reviews the 1990 literature that concerns subject analysis. Issues addressed include subject cataloging, including Library of Congress Subject Headings (LCSH); classification, including Dewey Decimal Classification (DDC), Library of Congress Classification, and classification in online systems; subject access, including the online use of…

Presents overview of library classification and automation (1940-84), including use of Dewey Decimal and Library of Congress classification in online cataloging systems. Highlights include classification number access in existing online catalogs, functions of classification records, specifications for authority file records, and the nature of…

Provides formula for estimating number of Africana titles in large libraries using Library of Congress classification schedule. To determine percentage of Africana falling in DT section, distribution of titles in two academic libraries with separate shelflists is analyzed. Core categories of Africana and distribution of northern African titles are…

Authority records were compared for established headings that are identical in "Library of Congress Subject Headings" (LCSH, 18th edition) and "Moving-Image Materials: Genre Terms" (MIM). Both quantitatively and qualitatively, pairs of identical headings differ sufficiently from each other that the creation of authority records…

Discusses cataloging policy at the University of Alabama libraries that allows the acceptance of LC (Library of Congress) classification call numbers from OCLC cataloging into the local database without shelflisting, and describes a study that measured error rates for locally unshelflisted samples to determine the disarrangement of the local…

Describes a historical study of cataloging rules through the "Anglo-American Cataloging Rules, 2d ed.," that was conducted to identify linking devices that have been used to connect bibliographic entities. Relationships that are part of the taxonomy of bibliographic relationships are explained, including equivalence, derivative,…

Describes the Dewey Online Retrieval System (DORS), which was developed at the University of California, Los Angeles (UCLA), to experiment with classification-based search strategies in online catalogs. Classification structures in automated information retrieval are discussed; and specifications for a classification retrieval interface are…

This paper describes an experiment in the use of Dewey Decimal Classification in online catalogs to introduce classed approach to subject searching of library collections, enhance subject terminology indexed in online catalog, and provide possibilities for search strategies not possible through alphabetical approach of subject headings and/or…

Provides an annotated listing of 23 selected subject cataloging tools to supplement the widely used Library of Congress Subject Headings, and to assist catalogers in developing related heading schemes by converting common synonyms into cross references to increase subject accessibility. (RAA)

Explores the differences between the filing rules designed by the Library of Congress and those of the American Library Association. (FM)

Discusses the need for accurate documentation of museum holdings and the feasibility of using online library catalogs as models for automated cataloging in museums. The description of museum computer projects covers problems that have impeded automation in the past and the current status of several projects. (34 references) (CLB)

Discussion of precision in information retrieval highlights a prototype online catalog, ILSA (Improving Library Subject Access), developed at Indiana University of Pennsylvania that uses subject clusters and classification. Topics addressed include problems with keyword searching, controlled vocabulary, and thesauri; natural language mapping…