Is there any open source implementation of LSI in Java? I want to use that library for my project. I have seen jLSI but it implements some other model of LSI. I want a standard model.
+1
A:
A google search for java LSI leads to a similar question that recommends SemanticVectors. A package built on top of Lucene that is 'similar' to LSI. I don't know if it's closer than the jLSI implementation.
That thread also mentions that LSI is patented and there aren't a lot of implementations of it. So if you need a standard implementation you may have to use a language other than java.
Scott Ray
2009-12-07 19:46:33
+2
A:
Have you considered LDA (Latent Dirichlet allocation)? I haven't really either, but I encountered the same problem with LSI recently (patents). From what I understand LDA is a related/more powerful technique. http://en.wikipedia.org/wiki/Latent%5FDirichlet%5Fallocation apparently has some links to open-source implementations.
Toshio Nakamura
2009-12-26 21:23:44
Though you're specifically asking for LSI aren't you. Oh well, worth a shot...
Toshio Nakamura
2009-12-26 21:24:47
A:
I believe that LSA/LSI was patented in 1989, which means the patent should have just expired. Hopefully we will see some nice open source applications soon.
Andrew Beck
2010-05-17 21:43:53