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Latent semantic analysis
Latent semantic analysis (LSA) is a technique in natural language processing, in particular in vectorial semantics, patented in 1988 by Scott Deerwester], [[Susan Dumais, George Furnas, Richard Harshman, Thomas Landauer, Karen Lochbaum and Lynn Streeter. In the context of its application to information retrieval, it is sometimes called latent semantic indexing (LSI).
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