> I’m using Lucene 2.4.1 and I’m trying to use a custom > HitCollector to collect only the first N hits (not the best hits) for > performance.
You mean that you do not need score calculation therefore you do not want results sorted by relevancy. Just you need is a Boolean Retrieval Model, right? All results will have ConstantScore (0 or 1). If yes, I think omitting norms and tfs of your searchable fields can improve your search performance without writing custom HitCollector. void org.apache.lucene.document.Field.setOmitNorms(true) Using Field.Index.ANALYZED_NO_NORMS in constructor. void org.apache.lucene.document.Field.setOmitTf(true) But i am not sure those changes are enough to convert Vector Space Model to Boolean Retrieval Model. I think there should be another trick to not to calculate score/similarity at all. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
