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From <nnagaraja...@transaxtions.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 Wed, 10 Sep 2014 16:32:34 GMT
Hi Deigo:

Not sure of solr-sense, but complex-lsa is an enhanced lsa implementation with TERM-DOCUMENT
Similarity, etc. (not found in lsa).  The relevance/ranking is again different and is more
accurate as it uses the RankingAlgorithm scoring model. The query performance gain with this
version is significant from the last release, a TERM-SIMILARITY query that used to take about
8-9 seconds now takes just 30ms to 80ms. Lot of performance improvements ...

Warm Regards,

Nagendra Nagarajayya
 http://solr-ra.tgels.org
 http://elasticsearch-ra.tgels.org
 http://rankingalgorithm.tgels.org
(accurate and relevant, simulates human language acquisition and recognition)

-----Original Message-----
From: Diego Fernandez [mailto:difernan@redhat.com] 
Sent: Tuesday, September 9, 2014 10:38 AM
To: solr-user@lucene.apache.org
Cc: general@lucene.apache.org
Subject: Re: [Announce] Apache Solr 4.10 with RankingAlgorithm 1.5.4 available now with complex-lsa
algorithm (simulates human language acquisition and recognition)

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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