http://blog.yuku-t.com/entry/20110623/1308810518
Mathieu’s log » Blog Archive » LSA and pLSA in Python
Latent Semantic Analysis (LSA) and its probabilistic counterpart pLSA are two well known techniques in Natural Language Processing that aim to analyze the co-occurrences of terms in a corpus of documents in order to find hidden/latent factors, regarded as topics or concepts. Since the number of topics/concepts is usually greatly inferior to the number of words and since it is not necessary to know
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