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rdf:about="http://pyevolve.sourceforge.net/wordpress/?p=1589"><title>Machine Learning :: Text feature extraction (tf-idf) – Part I | Pyevolve</title><description>Short introduction to Vector Space Model (VSM) In information retrieval or text mining, the term frequency - inverse document frequency also called tf-idf, is</description><link>http://pyevolve.sourceforge.net/wordpress/?p=1589</link><dc:creator>jaeschke</dc:creator><dc:date>2012-02-08T13:03:04+01:00</dc:date><dc:subject>document frequency information ir learning machine model retrieval search space term tfidf vector vsm web </dc:subject><content:encoded>Short introduction to Vector Space Model (VSM) In information retrieval or text mining, the term frequency - inverse document frequency also called tf-idf,&lt;span class=&#034;info&#034;&gt;...&lt;div&gt;Short introduction to Vector Space Model (VSM) In information retrieval or text mining, the term frequency - inverse document frequency also called tf-idf, 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