Thanks a lot for your quick answer.
I modified the idf formula as you suggested, and got a small improvement.
Then I added coord() to scoring and the boost was pretty big :)
http://lucene.472066.n3.nabble.com/file/n873240/prcurve_bm25.png
These tests are done on the ohsumed train corpus(i used
Hy,
I did some tests and i keep getting low scores for bm25 on ORP collections.
The implementation is from this patch:
https://issues.apache.org/jira/browse/LUCENE-2091
https://issues.apache.org/jira/browse/LUCENE-2091
Is that normal?
I got the following results using StandardAnalyzer:
http:
Thanks, that worked:)
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Hi,
I am testing some ranking methods with /contrib/benchmark/quality package,
and i was wondering if there is a simple way of building a precision-recall
graph with the info gathered(maybe QualityStats.RecallPoint).
Thanks
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