Indexing by Latent Semantic Analysis

  title={Indexing by Latent Semantic Analysis},
  author={Scott C. Deerwester and Susan T. Dumais and Thomas K. Landauer and George W. Furnas and Richard A. Harshman},
A new method for automatic indexing and retrieval is described. The approach is to take advantage of implicit higher-order structure in the association of terms with documents (“semantic structure”) in order to improve the detection of relevant documents on the basis of terms found in queries. The particular technique used is singular-value decomposition, in which a large term by document matrix is decomposed into a set of ca. 100 orthogonal factors from which the original matrix can be… CONTINUE READING
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