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 coord on f2exp also) http://lucene.472066.n3.nabble.com/file/n873240/prcurve.png -- View this message in context: http://lucene.472066.n3.nabble.com/Precision-recall-curve-with-contrib-benchmark-quality-tp844442p873240.html Sent from the Lucene - Java Users mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
