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An Expert System for Quality Control in Bibliographic Databases.
Peer reviewed Peer reviewed
Todeschini, Claudio; Farrell, Michael P. – Journal of the American Society for Information Science, 1989
Describes an expert system that can identify documents erroneously categorized by indexers working within a prior category scheme. The discussion covers the results of a test of the system and its implications for automatic indexing systems. (14 references) (CLB)
Descriptors: Bibliographic Databases, Expert Systems, Indexing, Mathematical Formulas
Retrieval Testing with Hypergeometric Document Models.
Peer reviewed Peer reviewed
Wilbur, W. John – Journal of the American Society for Information Science, 1993
Presents a method of modeling the relevance relationship in information retrieval to answer the question of the theoretical limits of certain statistical methods. Hypergeometric probability distribution is used to construct an abstract model of a database of MEDLINE records, and results of tests of vector retrieval methods are reported. (28…
Descriptors: Automatic Indexing, Bayesian Statistics, Bibliographic Databases, Expert Systems
Experiments in Automatic Library of Congress Classification.
Peer reviewed Peer reviewed
Larson, Ray R. – Journal of the American Society for Information Science, 1992
Presents the results of research into the automatic selection of Library of Congress Classification numbers based on the titles and subject headings in MARC records from a test database at the University of California at Berkeley Library School library. Classification clustering and matching techniques are described. (44 references) (LRW)
Descriptors: Academic Libraries, Bibliographic Databases, Bibliographic Records, Classification