this isn't doing what you think. title^10 content is actually parsed as text:title^100 text:content
where "text" is my default search field. assuming title is a field. If you look a little farther up the debug output you'll see that. You probably want title:content^100 or some such? Erick On Tue, Jul 23, 2013 at 1:43 AM, Jack Krupansky <j...@basetechnology.com> wrote: > That means that for that document "china" occurs in the title vs. "snowden" > found in a document but not in the title. > > > -- Jack Krupansky > > -----Original Message----- From: Joe Zhang > Sent: Tuesday, July 23, 2013 12:52 AM > To: solr-user@lucene.apache.org > Subject: Re: Question about field boost > > > Is my reading correct that the boost is only applied on "china" but not > "snowden"? How can that be? > > My query is: q=china+snowden&qf=title^10 content > > > On Mon, Jul 22, 2013 at 9:43 PM, Joe Zhang <smartag...@gmail.com> wrote: > >> Thanks for your hint, Jack. Here is the debug results, which I'm having a >> hard deciphering (the two terms are "china" and "snowden")... >> >> 0.26839527 = (MATCH) sum of: >> 0.26839527 = (MATCH) sum of: >> 0.26757246 = (MATCH) max of: >> 7.9147343E-4 = (MATCH) weight(content:china in 249), product of: >> 0.019873314 = queryWeight(content:china), product of: >> 1.6649085 = idf(docFreq=46832, maxDocs=91058) >> 0.01193658 = queryNorm >> 0.039825942 = (MATCH) fieldWeight(content:china in 249), product >> of: >> 4.8989797 = tf(termFreq(content:china)=24) >> 1.6649085 = idf(docFreq=46832, maxDocs=91058) >> 0.0048828125 = fieldNorm(field=content, doc=249) >> 0.26757246 = (MATCH) weight(title:china^10.0 in 249), product of: >> 0.5836803 = queryWeight(title:china^10.0), product of: >> 10.0 = boost >> 4.8898454 = idf(docFreq=1861, maxDocs=91058) >> 0.01193658 = queryNorm >> 0.45842302 = (MATCH) fieldWeight(title:china in 249), product of: >> 1.0 = tf(termFreq(title:china)=1) >> 4.8898454 = idf(docFreq=1861, maxDocs=91058) >> 0.09375 = fieldNorm(field=title, doc=249) >> 8.2282536E-4 = (MATCH) max of: >> 8.2282536E-4 = (MATCH) weight(content:snowden in 249), product of: >> 0.03407834 = queryWeight(content:snowden), product of: >> 2.8549502 = idf(docFreq=14246, maxDocs=91058) >> 0.01193658 = queryNorm >> 0.024145111 = (MATCH) fieldWeight(content:snowden in 249), product >> of: >> 1.7320508 = tf(termFreq(content:snowden)=3) >> 2.8549502 = idf(docFreq=14246, maxDocs=91058) >> 0.0048828125 = fieldNorm(field=content, doc=249) >> >> >> On Mon, Jul 22, 2013 at 9:27 PM, Jack Krupansky >> <j...@basetechnology.com>wrote: >> >>> Maybe you're not doing anything wrong - other than having an artificial >>> expectation of what the true relevance of your data actually is. Many >>> factors go into relevance scoring. You need to look at all aspects of >>> your >>> data. >>> >>> Maybe your terms don't occur in your titles the way you think they do. >>> >>> Maybe you need a boost of 500 or more... >>> >>> Lots of potential maybes. >>> >>> Relevancy tuning is an art and craft, hardly a science. >>> >>> Step one: Know your data, inside and out. >>> >>> Use the debugQuery=true parameter on your queries and see how much of the >>> score is dominated by your query terms in the non-title fields. >>> >>> -- Jack Krupansky >>> >>> -----Original Message----- From: Joe Zhang >>> Sent: Monday, July 22, 2013 11:06 PM >>> To: solr-user@lucene.apache.org >>> Subject: Question about field boost >>> >>> >>> Dear Solr experts: >>> >>> Here is my query: >>> >>> defType=dismax&q=term1+term2&**qf=title^100 content >>> >>> Apparently (at least I thought) my intention is to boost the title field. >>> While I'm getting some non-trivial results, I'm surprised that the >>> documents with both term1 and term2 in title (I know such docs do exist >>> in >>> my repository) were not returned (or maybe ranked very low). The >>> situation >>> does not change even when I use much larger boost factors. >>> >>> What am I doing wrong? >>> >> >> >
