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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2091) Add BM25 Scoring to Lucene
Date Mon, 30 Nov 2009 07:23:20 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2091?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12783558#action_12783558
] 

Robert Muir commented on LUCENE-2091:
-------------------------------------

Yuval, bm25 has been working nicely for me too. 
on some collections, it really helps, but I haven't yet found a case where it hurts (compared
to lucene's current scoring algorithm)

thanks in advance for working this!


> Add BM25 Scoring to Lucene
> --------------------------
>
>                 Key: LUCENE-2091
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2091
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: contrib/*
>            Reporter: Yuval Feinstein
>            Priority: Minor
>             Fix For: 3.1
>
>         Attachments: persianlucene.jpg
>
>   Original Estimate: 48h
>  Remaining Estimate: 48h
>
> http://nlp.uned.es/~jperezi/Lucene-BM25/ describes an implementation of Okapi-BM25 scoring
in the Lucene framework,
> as an alternative to the standard Lucene scoring (which is a version of mixed boolean/TFIDF).
> I have refactored this a bit, added unit tests and improved the runtime somewhat.
> I would like to contribute the code to Lucene under contrib. 

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