Uwe and Robert, Thanks. David and I are two peas in one pod here at Basis.
--benson On Fri, Apr 20, 2012 at 2:33 AM, Uwe Schindler <u...@thetaphi.de> wrote: > Hi, > > Ah sorry, I misunderstood, you wanted to score the duplicate match lower! To > achieve this, you have to change the coord function in your > similarity/BooleanWeight used for this query. > > Either way: If you want a group of terms that get only one score if at least > one of the terms match (SQL IN), but not add them at all, > DisjunctionMaxQuery is fine. I think this is what Benson asked for. > > ----- > Uwe Schindler > H.-H.-Meier-Allee 63, D-28213 Bremen > http://www.thetaphi.de > eMail: u...@thetaphi.de > > >> -----Original Message----- >> From: Uwe Schindler [mailto:u...@thetaphi.de] >> Sent: Friday, April 20, 2012 8:16 AM >> To: java-user@lucene.apache.org; david_murgatr...@hotmail.com >> Subject: RE: DisjunctionMaxQuery and scoring >> >> Hi, >> > I think >> > Â BooleanQuery bq = new BooleanQuery(false); doesn't quite accomplish >> > the desired "name IN (dick, rich)" scoring behavior. This is because >> (name:dick | >> > name:rich) with coord=false would score the 'document' "Dick Rich" >> > higher than "Rich" because the former has two term matches and the >> > latter only >> one. >> > In contrast, I think the desire is that one and only one of the terms >> > in >> the >> > document match those in the BooleanQuery so that "Rich" would score >> > higher than "Dick Rich", given document length normalization. It's >> > almost like a >> desire >> > for BooleanQuery bq = new BooleanQuery(false); >> > Â bq.set*Maximum*NumberShouldMatch(1); >> >> I that case DisjunctionMaxQuery is the way to go (it will only count the > hit with >> highest score and not add scores (coord or not coord doesn't matter here). >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
