[Corpora-List] Package for LSA, tfidf, etc

[Stephan Gouws]

Hi,

 I'm looking for a software package that I can use to generate the document
similarity matrix for a small corpus of 50 documents, using various of the
standard algorithms like tfidf, okapi, language models, cosine, lsa, etc.

 Research code is fine I just want a trusted implementation of these
algorithms, languages in order of preference are [Python, C, C++] , [Java],
Perl], and from there it's not really preferred anymore but fine nonetheless
:)

 I want to correlate these with human ratings in a research setting.

 Thank you very much!
 Stephan.
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