Search (2 results, page 1 of 1)

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Abstract

In current cataloging practice, the identification of an item as a member of a particular work set is accomplished by assigning a main entry heading, or main entry citation, in the bibliographic record representing that item. The main entry citation is normally comprised of a primary author name and the uniform title associated with the work. However, the quality of bibliographic records varies, and this means of identification is not universally used by catalogers. Thus, consistent identification and retrieval of records representing editions of works is not guaranteed. Research is reported that investigates the extent to which records that are members of a particular work set may be automatically identified as such.

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Abstract

Central to subject searching is the match between user vocabulary and the headings from Library of Congress Subject-Headings (LCSH) used in a library catalog. This paper evaluates previous matching studies, proposes a detailed list of matching categories, and tests LCSH in a study using these categories. Exact and partial match categories are defined for single LCSH and multiple LCSH matches to user expressions. One no-match category is included. Transaction logs from ORION, UCLA's online Information system, were used to collect user expressions for a comparison of LCSH and user language. Results show that single LCSH headings match user expressions exactly about 47% of the time; that single subject heading matches, including exact matches, comprise 74% of the total; that partial matches, to both single and multiple headings, comprise about 21% of the total; and that no match occurs 5% of the time.