Hi, I have a similar problem - only in my case, the query is the same, but I use different indexes with different fields names (this is why I need to separate the search). Is it possible to merge these two sets of results?
Thanks a lot, Liat On 14 February 2012 19:46, Uwe Schindler <u...@thetaphi.de> wrote: > Scores are only compatible if the query is the same, which is not the case > for you. So you cannot merge hits from different queries. > > ----- > Uwe Schindler > H.-H.-Meier-Allee 63, D-28213 Bremen > http://www.thetaphi.de > eMail: u...@thetaphi.de > > > > -----Original Message----- > > From: Trejkaz [mailto:trej...@trypticon.org] > > Sent: Wednesday, February 15, 2012 1:40 AM > > To: Lucene Users Mailing List > > Subject: Merging results from two searches on two separate Searchers > > > > Hi all. > > > > We have 1..N indexes for each time someone adds some data. Each time they > > can choose different tokenisation settings. Because of this, each text > index has > > its own query parser instance. Because each query parser could generate a > > different Query (though I guess whether they do or not is another > matter!) we > > can't just use MultiReader and a single IndexSearcher. > > > > What we have been doing is performing the search against each index and > then > > merging the results by score. I remember from a long time ago that this > was > > not something you're supposed to do. > > > > Reading information I can find today, it sounds like the main problem > was Hits > > doing score normalisation. We cloned Hits a while back and inherited its > score > > normalisation code as well. > > > > So my questions: > > - does normalising the scores do anything other than give people the > illusion > > that scores are from 0.0 ~ 1.0? > > - if I remove the score normalisation from our Hits-like class, is it > now totally > > OK to merge the lists of results? > > (And, I guess, if not, is there some trick I can employ to line the > scores for the > > results up so that I can?) > > > > TX > > > > --------------------------------------------------------------------- > > 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 > >
