HI ! Thank you for your help. I think I don't use CustomScoreQuery correctly when I do a "search".
BooleanQuery combinedQuery = new BooleanQuery(); combinedQuery.add(textQuery, Occur.MUST); combinedQuery.add(titleQuery, Occur.MUST); CustomScoreQuery customQuery = new CustomScoreQuery(combinedQuery,new FieldScoreQuery(BOOST_FIELD,Type.INT)); indexSearcher.search(..., customQuery, ....). in order to index the BOOST_FIELD, I do that : Field boostField = new Field(BOOST_FIELD, Integer.toString(boost), Field.Store.YES, Field.Index.ANALYZED.NO); Is that correct ? Thank you Uwe Schindler wrote: > > It's CustomScoreQuery in 2.9 and 3.0. > > Please wait for 2.9.2 and 3.0.1 for an important API change in this > experimental query type to work correct with the new per-segment-search! > You can test the release artifacts of both new versions here: > http://people.apache.org/~uschindler/staging-area/lucene-292-301-take2-rev912433/ > > With e.g. ValueSourceQuery you can score your documents using a separate > numeric field from your documents (it uses FieldCache). > > Uwe > > ----- > Uwe Schindler > H.-H.-Meier-Allee 63, D-28213 Bremen > http://www.thetaphi.de > eMail: u...@thetaphi.de > >> -----Original Message----- >> From: Ian Lea [mailto:ian....@gmail.com] >> Sent: Monday, February 22, 2010 10:33 AM >> To: java-user@lucene.apache.org >> Subject: Re: Boost Problem (again), need example ! >> >> Can't you simply sort by descending score (your score, not lucene's)? >> Seems to me that would give you what you are asking for. >> >> The setBoost() method is unlikely to work consistently because it only >> infuences the score rather than setting it. If your John Mickeal doc >> happens to have a higher lucene score, because of the normal >> idf/tf/etc stuff, then the setBoost() with a higher value for John >> Smith may well not be enough to force John Smith to the top. >> >> I don't know enough about function queries to help you much there but >> FieldScoreQuery might work. I can't see any sign of class >> FunctionQuery in the 3.0.0 core package so am not clear what that is. >> >> >> -- >> Ian. >> >> >> >> On Mon, Feb 22, 2010 at 8:54 AM, pdaures <patrick.dau...@gmail.com> >> wrote: >> > >> > Hi, >> > I know that there are many topics about scoring issues, but I didn't >> find an >> > answer in the topics. >> > This is the problem : >> > Imagine I'm a teacher, and I have to index all the results, comments >> and >> > score about students. >> > >> > Student : >> > String name (eg : John Smith) >> > String comments : (eg: John is a good student, but he needs to be >> more self >> > confident bla bla bla) >> > float score (eg : 98) >> > >> > I have to index all the students and when I use the search class, I >> want to >> > get first the best students. So, if John Smith is a better student >> than John >> > Mickael, when I search "John" I want to have John Smith BEFORE John >> Mickeal. >> > >> > To do that, I'm using BooleanQuery to search in name and comment >> fields. >> > >> > First, I thought I could use the function Document.setBoost(float >> boost) >> > while indexing student, with boost = Student.score. But the result >> was not >> > what I was expected, it didn't work correctly. >> > >> > Then I thought I could use a FunctionQuery to search : >> > FunctionQuery functionQuery = new FunctionQuery(new >> > ReverseOrdFieldSource("score")); >> > But the result was still incorrect. >> > >> > I don't know what I'm doing wrong. Could you help me to find a >> solution ? >> > Thank you :) >> > -- >> > View this message in context: http://old.nabble.com/Boost-Problem- >> %28again%29%2C-need-example-%21-tp27684388p27684388.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 >> > >> > >> >> --------------------------------------------------------------------- >> 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 > > > -- View this message in context: http://old.nabble.com/Boost-Problem-%28again%29%2C-need-example-%21-tp27684388p27685594.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
