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From "Vinay Setty (JIRA)" <>
Subject [jira] Commented: (LUCENE-2091) Add BM25 Scoring to Lucene
Date Sat, 06 Mar 2010 10:01:27 GMT


Vinay Setty commented on LUCENE-2091:

I am trying to compile the BM25 classes for Lucene using the source code in
But it wouldn't compile with later vesrion of Lucene i.e. lucene-3.0.1. I see that many of
the interfaces,, and
are all changed. Does anyone have a modified version of BM25 classes which works with latest
version of Lucene?

> Add BM25 Scoring to Lucene
> --------------------------
>                 Key: LUCENE-2091
>                 URL:
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: contrib/*
>            Reporter: Yuval Feinstein
>            Priority: Minor
>             Fix For: 3.1
>         Attachments: LUCENE-2091.patch, persianlucene.jpg
>   Original Estimate: 48h
>  Remaining Estimate: 48h
> 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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