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From Paul Elschot <paul.elsc...@xs4all.nl>
Subject Re: Implementing new scoring algorithms in lucene
Date Sat, 18 Feb 2006 09:27:30 GMT
On Saturday 18 February 2006 02:22, Shailesh Kochhar wrote:
> Hi,
> 
> I'm interested in implementing a few new scoring algorithms in Lucene
> and I was wondering if anyone had attempted this in the past and how
> successful they had been. If there are any resources that someone
> could point me to that would be great, Googling and searching the
> mailing-list archives didn't turn up anything.
> 
> After looking over the current implementation of tf-idf scoring, I
> concluded that the  weighting and scoring framework is mostly
> implemented in TermQuery and TermScorer classes. I am thinking of
> extending these classes and replacing a few others to implement the
> new algorithm. Am I heading in the right direction? Does it make sense
> to try and extend these classes or should I try building a parallel
> heirarchy to do this?

At the moment I only have time to answer with links:

http://issues.apache.org/jira/browse/LUCENE-293
http://mail-archives.apache.org/mod_mbox/lucene-java-dev/200410.mbox/<200410172050.24372.paul.elschot%40xs4all.nl>
http://www.loc.gov/standards/sru/cql/
http://svn.apache.org/viewcvs.cgi/lucene/java/trunk/contrib/surround/

Regards,
Paul Elschot

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