Well, it's not like sorting hadn't occurred to me. Unfortunately, what I recalled was that you could only sort results on one field (I do date sorted searches all the time in my application). I should have gone back and looked. My memory failed me as I can see that you can sort on multiple fields and "score" (aka relevancy) is one of the pseudo fields. That'll work.
Thanks. Scott -----Original Message----- From: Erick Erickson [mailto:[EMAIL PROTECTED] Sent: Friday, November 07, 2008 5:59 AM To: java-user@lucene.apache.org Subject: Re: Boosting results duuuuh, sorting. I absolutely love it when I overlook the obvious <G>. [EMAIL PROTECTED] On Fri, Nov 7, 2008 at 4:58 AM, Michael McCandless < [EMAIL PROTECTED]> wrote: > > Couldn't you just do a single Query that sorts first by category and second > by relevance? > > Mike > > > Erick Erickson wrote: > > It seems to me that the easiest thing would be to fire two queries and >> then just concatenate the results >> >> category:A AND body:fred >> >> category:B AND body:fred >> >> >> If you really, really didn't want to fire two queries, you could create >> filters on category A and category B and make a couple of >> passes through your results seeing if the returned documents were in >> the filter, but you'd still concatenate the results. Actually in your >> specific example you could make one filter on A..... >> >> You could also consider a custom scorer that, added 1,000,000 to every >> category A document. >> >> How much were you boosting by? What happens if you boost by a very large >> factor? >> As in ridiculously large? >> >> Best >> Erick >> >> On Thu, Nov 6, 2008 at 7:42 PM, Scott Smith <[EMAIL PROTECTED] >> >wrote: >> >> I'm interested in comments on the following problem. >>> >>> >>> >>> I have a set of documents. They fall into 3 categories. Call these >>> categories A, B, and C. Each document has an indexed, non-tokenized >>> field called "category" which contains A, B, or C (they are mutually >>> exclusive categories). >>> >>> >>> >>> All of the documents contain a field called "body" which contains a >>> bunch of text. This field is indexed and tokenized. >>> >>> >>> >>> So, I want to do a search which looks something like: >>> >>> >>> >>> (category:A OR category:B) AND body:fred >>> >>> >>> >>> I want all of the category A documents to come before the category B >>> documents. Effectively, I want to have the category A documents first >>> (sorted by relevancy) and then the category B documents after (sorted by >>> relevancy). >>> >>> >>> >>> I thought I could do this by boosting the category portion of the query, >>> but that doesn't seem to work consistently. I was setting the boost on >>> the category A term to 1.0 and the boost on the category B term to 0.0. >>> >>> >>> >>> Any thoughts how to skin this? >>> >>> >>> >>> Scott >>> >>> >>> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
