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ERIC Number: EJ415308
Record Type: Journal
Publication Date: 1990
Pages: N/A
Abstractor: N/A
ISBN: N/A
ISSN: ISSN-0002-8231
EISSN: N/A
Indexing by Latent Semantic Analysis.
Deerwester, Scott; And Others
Journal of the American Society for Information Science, v41 n6 p391-407 Sep 1990
Describes a new method for automatic indexing and retrieval called latent semantic indexing (LSI). Problems with matching query words with document words in term-based information retrieval systems are discussed, semantic structure is examined, singular value decomposition (SVD) is explained, and the mathematics underlying the SVD model is detailed. (37 references) (LRW)
Descriptors: Automatic Indexing, Documentation, Factor Analysis, Information Retrieval, Mathematical Models, Matrices, Relevance (Information Retrieval), Semantics, Subject Index Terms
Publication Type: Journal Articles; Opinion Papers; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A