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From Diego Fernandez <difer...@redhat.com>
Subject Re: [Announce] Apache Solr 4.10 with RankingAlgorithm 1.5.4 available now with complex-lsa algorithm (simulates human language acquisition and recognition)
Date Tue, 09 Sep 2014 17:38:25 GMT
Interesting.  Does anyone know how that compares to this http://www.searchbox.com/products/searchbox-plugins/solr-sense/?

Diego Fernandez - 爱国
Software Engineer
US GSS Supportability - Diagnostics


----- Original Message -----
> Hi!
> 
> I am very excited to announce the availability of Apache Solr 4.10 with
> RankingAlgorithm 1.5.4.
> 
> Solr 4.10.0 with RankingAlgorithm 1.5.4 includes support for complex-lsa.
> complex-lsa simulates human language acquisition and recognition (see demo
> <http://solr-ra.tgels.org/rankingsearchlsa.jsp> ) and can retrieve
> semantically related/hidden relationships between terms, sentences,
> paragraphs, chapters, books, images, etc. Three new similarities,
> TERM_SIMILARITY, DOCUMENT_SIMILARITY, TERM_DOCUMENT_SIMILARITY enable these
> with improved precision.  A query for “holy AND ghost” returns jesus/christ
> as the top results for the bible corpus with no effort to introduce this
> relationship (see demo <http://solr-ra.tgels.org/rankingsearchlsa.jsp> ).
> 
>  
> 
> This version adds support for  multiple linear algebra libraries.
> complex-lsa does a large amount of this calcs so speeding this up should
> speed up the retrieval etc. EJML is the fastest if you are using complex-lsa
> for a smaller set of documents, while MTJ is faster as your document
> collection becomes bigger. MTJ can also use BLAS/LAPACK, etc installed on
> your system to further improve performance with native execution. The
> performance is similar to a C/C++ application. It can also make use of GPUs
> or Intel's mkl library if you have access to it.
> 
> RankingAlgorithm 1.5.4 with complex-lsa supports the entire Lucene Query
> Syntax , ± and/or boolean/dismax/glob/regular
> expression/wildcard/fuzzy/prefix/suffix queries with boosting, etc. This
> version increases performance, with increased accuracy and relevance for
> Document similarity, fixes problems with phrase queries,  Boolean queries,
> etc.
> 
> 
> You can get more information about complex-lsa and realtime-search
> performance from here:
> http://solr-ra.tgels.org/wiki/en/Complex-lsa-demo
> 
> You can download Solr 4.10 with RankingAlgorithm 1.5.4 from here:
> http://solr-ra.tgels.org
> 
> Please download and give the new version a try.
> 
> Regards,
> 
> Nagendra Nagarajayya
> http://solr-ra.tgels.org
> http://elasticsearch-ra.tgels.org
> http://rankingalgorithm.tgels.org
> 
> Note:
> 1. Apache Solr 4.10 with RankingAlgorithm 1.5.4 is an external project.
> 
> 
> 
> 

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