Also note that the following is not doing what you want: <str name="bq">-is_mp_parent_b:true^50.0</str>
You want something like: <str name="bq">is_mp_parent_b:true^0.20</str> for negative boosting use a boost that is less than 1.0. Otis-- Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch ----- Original Message ---- > From: "Dean Missikowski (Consultant), CLSA" <dean.missikow...@clsa.com> > To: solr-user@lucene.apache.org > Sent: Sunday, March 8, 2009 3:30:28 AM > Subject: RE: Query Boosting using both BQ and BF > > Some more experiments have helped me answer my own questions. > > > Q1. Can anyone confirm whether bf and bq can both > > be used together in solrconfig.xml? > yes > > > Q3. Can I have multiple bq parameters? If so, do I > > space-separate them as a single bq, or provide > > multiple BQs? > Yes, multiple bq parameters work, space-separating multiple query terms > in a single bq also works. > > Here's a snippet of my solrconfig.xml: > > published_date_d:[NOW-3MONTHS/DAY TO NOW/DAY+1DAY]^5.2 OR > (published_date_d:[NOW-12MONTHS/DAY TO NOW/DAY+1DAY] AND > report_type_id_i:10000004)^10.0 OR (published_date_d:[NOW-6MONTHS/DAY TO > NOW/DAY+1DAY] AND is_printed_b:true)^4.0 > is_mp_parent_b:false^10.0 > recip(rord(published_date_d),20,5000,5)^5.5 > > > -----Original Message----- > From: Dean Missikowski (Consultant), CLSA > Sent: 08/03/2009 12:01 PM > To: solr-user@lucene.apache.org > Subject: Query Boosting using both BQ and BF > > Hi, > > I have a couple of questions related to query boosting using the dismax > request handler. I'm using a recent 1.4 build (to take advantage of > omitTf), and have also tried all of this with 1.3. > > To apply a query-time boost to the previous 3 months of documents in my > index I use: > > published_date_d:[NOW-3MONTHS/DAY TO NOW/DAY+1DAY]^10.2 > > > And, to provide a boosting that helps rank recently documents higher I > use: > recip(rord(published_date_d),20,5000,5)^5.5 > > This seems to be working well. > > But I have more boosting requirements. For example, I need to boost > documents that are tagged as printed. So, I tried to add another bq > parameter: > > is_printed_b:true^4.0 > > Also, tried to append this space-separated all in one bq parameter like > this: > published_date_d:[NOW-3MONTHS/DAY TO NOW/DAY+1DAY]^10.2 > is_printed_b:true^4.0 > > Lastly, I need to apply a negative boost to documents of a certain type, > so I use: > -is_mp_parent_b:true^50.0 > > Not sure if it matters, but I have > defaultOperator="AND"/> in schema.xml > > None of those variations return expected results (it's like the bq is > being applied as a filter instead of just applying boosts). > > Q1. Can anyone confirm whether bf and bq can both be used together in > solrconfig.xml? > Q2. Is there a way I can do ths using only BF? How? > Q3. Can I have multiple bq parameters? If so, do I space-separate them > as a single bq, or provide multiple BQs? > Q3. Am I formulating my BQs that use Boolean fields correctly? > > Any help or insights much appreciated, > > Thanks Dean > > CLSA CLEAN & GREEN: Please consider our environment before printing this > email. > The content of this communication is subject to CLSA Legal and Regulatory > Notices. > These can be viewed at https://www.clsa.com/disclaimer.html or sent to you > upon > request.
