Entry Point Depth and Online Search Using a Controlled Vocabulary.

Boyce, Bert R.; McLain, John P.

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Peer reviewed

ERIC Number: EJ399432

Record Type: CIJE

Publication Date: 1989

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Entry Point Depth and Online Search Using a Controlled Vocabulary.

Boyce, Bert R.; McLain, John P.

Journal of the American Society for Information Science, v40 n4 p273-76 Jul 1989

Discusses previous research that examined the effects of different kinds of vocabulary control on retrieval effectiveness, and describes a study that addressed the effects of indexing depth on standard retrieval evaluation measures in the context of a typical commercial retrieval system. It is concluded that controlled vocabularies affect precision, but not recall. (14 references) (CLB)

Descriptors: Bibliographic Databases, Comparative Analysis, Indexing, Information Retrieval, Measurement Techniques, Online Searching, Performance Factors, Relevance (Information Retrieval), Subject Index Terms

Publication Type: Journal Articles; Reports - Research

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Language: English

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