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ERIC Number: ED192799
Record Type: Non-Journal
Publication Date: 1978-Dec
Pages: 129
Abstractor: N/A
Reference Count: N/A
Thesaurus-Based Automatic Indexing: A Study of Indexing Failure.
Caplan, Priscilla Louise
This study examines automatic indexing performed with a manually constructed thesaurus on a document collection of titles and abstracts of library science master's papers. Errors are identified when the meaning of a posted descriptor, as identified by context in the thesaurus, does not match that of the passage of text which occasioned the posting. Three major types of errors are discussed: term ambiguity, flaws in thesaurus construction, and the automatic word matching procedure. The study concludes with a discussion of reasons for failure of each of the three error types, and an explanation of study limitations. Appendices contain an outline of the hierarchical structure of the thesaurus studied, a random sample of 100 index terms, and other subsets of the thesaurus which support the study. (Author/SW)
Publication Type: Dissertations/Theses - Masters Theses
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A