Jason, Try boosts less than 1.0 for "negative" boosting. Use &debugQuery=true to see how your query gets parsed and rewritten.
Otis --- Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch ----- Original Message ---- > From: Jason Rennie <[EMAIL PROTECTED]> > To: solr-user@lucene.apache.org > Sent: Tuesday, August 5, 2008 10:45:24 AM > Subject: dismax bq > > I'd like to be able to specify query term weights/boosts, which it sounds > like bq was created for. I think my understanding from the wiki is a bit > rough, so I'm hoping I might be able to get some questions answered here. > Any thoughts/comments are much appreciated. > > I initially tried simply passing a dismax-style query in bq w/ an empty q > param and got no results. Is this because bq terms must specify fields. > I.e. bq=shoes won't work, but bq=title:shoes will boost docs that match > "shoes" in the "title" field? > > Does bq simply add boosts to query terms? Say my only qf is "title" and > q=boots&bq=shoes^0.5. Does this translate to a lucene query of > q=title:boots^1.0+title:shoes^0.5. If, instead, q=shoes+boots, would the > lucene query be q=title:boots^1.0+title:shoes^1.5 ? > > Is it possible to negatively boost a term without completely negging it? > I.e. is it possible to do something like q=shoes&bq=bags^-1.0 ? > > Thanks, > > Jason
