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Peer reviewedDillon, Martin; Federhart, Peggy – Journal of the American Society for Information Science, 1982
Presents a method for identifying indexing terms from word stems, using discriminant analysis to distinguish terms which refer to topics from terms which do not refer to topics. A test of the method on the Harris Survey Question database is discussed. Included are 11 data tables and a reference list. (Author/JL)
Descriptors: Automatic Indexing, Classification, Discriminant Analysis, Information Retrieval
Hersh, William R.; Hickman, David H. – Proceedings of the ASIS Annual Meeting, 1992
Describes a study that compared two information retrieval systems on a full-text medical database: one featured concept-based automatic indexing and statistical retrieval techniques, and the second used traditional word-based Boolean techniques. Evaluation of search results by calculating relative recall and precision is discussed, and user…
Descriptors: Analysis of Variance, Automatic Indexing, Comparative Analysis, Evaluation Methods
