We essentially are looking at having an implementation for doing search which can return documents having conceptually similar words without necessarily having the original word searched for.
- Eswar On Nov 27, 2007 12:06 AM, Grant Ingersoll <[EMAIL PROTECTED]> wrote: > Interesting. I am not a lawyer, but my understanding has always been > that this is not something we could do. > > The question has come up from time to time on the Lucene mailing list: > > http://www.gossamer-threads.com/lists/engine?list=lucene&do=search_results&search_forum=forum_3&search_string=Latent+Semantic&search_type=AND > > That being said, there may be other approaches that do similar things > that aren't covered by a patent, I don't know. > > Is there something specific you want to do, or are you just going by > the promise of better results using LSI? > > I suppose if someone said they had a patch for Lucene/Solr that > implemented it, we could ask on legal-discuss for advice. > > -Grant > > On Nov 26, 2007, at 1:13 PM, Eswar K wrote: > > > I was just searching for info on LSA and came across Semantic Indexing > > project under GNU license...which of couse is still under > > development in C++ > > though. > > > > - Eswar > > > > On Nov 26, 2007 9:56 PM, Jack <[EMAIL PROTECTED]> wrote: > > > >> Interesting. Patents are valid for 20 years so it expires next > >> year? :) > >> PLSA does not seem to have been patented, at least not mentioned in > >> http://en.wikipedia.org/wiki/Probabilistic_latent_semantic_analysis > >> > >> On Nov 26, 2007 6:58 AM, Grant Ingersoll <[EMAIL PROTECTED]> wrote: > >>> LSA (http://en.wikipedia.org/wiki/Latent_semantic_indexing) is > >>> patented, so it is not likely to happen unless the authors donate > >>> the > >>> patent to the ASF. > >>> > >>> -Grant > >>> > >>> > >>> > >>> On Nov 26, 2007, at 8:23 AM, Eswar K wrote: > >>> > >>>> All, > >>>> > >>>> Is there any plan to implement Latent Semantic Analysis as part of > >>>> Solr > >>>> anytime in the near future? > >>>> > >>>> Regards, > >>>> Eswar > >>> > >>> -------------------------- > >>> Grant Ingersoll > >>> http://lucene.grantingersoll.com > >>> > >>> Lucene Helpful Hints: > >>> http://wiki.apache.org/lucene-java/BasicsOfPerformance > >>> http://wiki.apache.org/lucene-java/LuceneFAQ > >>> > >>> > >>> > >>> > >> > > -------------------------- > Grant Ingersoll > http://lucene.grantingersoll.com > > Lucene Helpful Hints: > http://wiki.apache.org/lucene-java/BasicsOfPerformance > http://wiki.apache.org/lucene-java/LuceneFAQ > > > >
