This doesn't seem to match what I'm seeing in terms of using bq - using any value > 0 increases the score. For example, with no bq:
<str name="q">solr</str> <str name="fl">title,score,type</str> <str name="version">2.2</str> </lst> </lst> <result name="response" numFound="35" start="0" maxScore="1.6885357"> <doc> <float name="score">1.6885357</float> <str name="title">Building a killer search for Drupal</str> <str name="type">wikipage</str> </doc> <doc> <float name="score">1.5547959</float> <str name="title">New Solr module available for testing</str> <str name="type">story</str> </doc> <doc> <float name="score">1.408378</float> <str name="title">Check out the Solr project!</str> <str name="type">story</str> </doc> Versus with a bq < 1, the scores of matching docs are still increased compared to using no bq: <str name="bq">type:story^0.5</str> <str name="indent">on</str> <str name="q">solr</str> <str name="fl">title,score,type</str> <str name="version">2.2</str> </lst> </lst> <result name="response" numFound="35" start="0" maxScore="1.6885297"> <doc> <float name="score">1.6885297</float> <str name="title">Building a killer search for Drupal</str> <str name="type">wikipage</str> </doc> <doc> <float name="score">1.5585454</float> <str name="title">New Solr module available for testing</str> <str name="type">story</str> </doc> <doc> <float name="score">1.4121282</float> <str name="title">Check out the Solr project!</str> <str name="type">story</str> </doc> On Sun, Mar 8, 2009 at 9:48 AM, Otis Gospodnetic <otis_gospodne...@yahoo.com> wrote: > > 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. > > -- Peter M. Wolanin, Ph.D. Momentum Specialist, Acquia. Inc. peter.wola...@acquia.com
