Software to do latent semantic analysis

[Adel Makram]

I have a document-word matrix and I need to do latent semantic analysis to match a query document with a set of key-words to the best possible match among other documents in the matrix. The matrix is in the form of documents-words occurrence array of 1 and 0 input. What is the best software I can use to do it by plugging my data and then doing my search?

 

[CapnGranite]

have you tried http://lsa.colorado.edu/ ?
Latent Semantic Analysis@ CU Boulder

They might have links to software downloads.