Ok thanks, I just wanted the know is it possible to ignore boost value or not during score calculation and as you said its not. Now I would have to focus on nutch to fix the issue and not to send boost=0 to Solr.
Regards, Khan On Wed, Jul 10, 2013 at 12:14 PM, Daniel Collins <danwcoll...@gmail.com>wrote: > Sorry to repeat Jacks' previous answer but x times zero is always zero :) > > A index boost is just what the name suggests, a factor by which the > document score is boosted (multiplied). Since it is in an index time value, > it is stored alongside the document, so any future scoring of the document > by any query will take this value into account. If you take Solr's internal > document score and then multiply it by zero, the result is by definition > zero... > > What you seem to be saying is you are passing in an index time boost (which > is incorrect but that's an issue with Nutch), but you want Solr to ignore > it, surely the correct approach then is *not* to pass it in? > > Once the data is indexed, it is "fixed", unless you re-index the document, > so if that data is wrong, there is nothing Solr can do about it, you have > to re-index the documents that have incorrect data. If you want to just use > TF-IDF for scoring and not use boosting, don't supply any boosting, it's > that simple. Sorry if this sounds repetitive, but can't think of any other > way to say it. > > > On 10 July 2013 06:33, Tony Mullins <tonymullins...@gmail.com> wrote: > > > Jack due to 'some' reason my nutch is returning me index time boost =0.0 > > and just for a moment suppose that nutch is and will always return boost > > =0. > > > > Now my simple question was why Solr is showing me document's score = 0 ? > > Why is it depending upon index time boost value ? Why or how to make Solr > > to only calculate the score value on TF-IDF ? > > > > Regards, > > Khan > > > > > > On Tue, Jul 9, 2013 at 6:31 PM, Jack Krupansky <j...@basetechnology.com > > >wrote: > > > > > Simple math: x times zero equals zero. > > > > > > That's why the default document boost is 1.0 - score times 1.0 equals > > > score. > > > > > > Any particular reason you wanted to zero out the document score from > the > > > document level? > > > > > > -- Jack Krupansky > > > > > > -----Original Message----- From: Tony Mullins > > > Sent: Tuesday, July 09, 2013 9:23 AM > > > To: solr-user@lucene.apache.org > > > Subject: Re: Calculating Solr document score by ignoring the field. > > > > > > > > > I am passing boost value (via nutch) and i.e boost =0.0. > > > But my question is why Solr is showing me score = 0.0 when my boost > > (index > > > time boost) = 0.0 ? > > > Should not Solr calculate its documents score on the basis of TF-IDF ? > > And > > > if not how can I make Solr to only consider TF-IDF while calculating > > > document's score ? > > > > > > Regards, > > > Khan > > > > > > > > > On Tue, Jul 9, 2013 at 4:46 PM, Erick Erickson < > erickerick...@gmail.com > > >** > > > wrote: > > > > > > My guess is that you're not really passing on the boost field's value > > >> and getting the default. Don't quite know how I'd track that down > > >> though.... > > >> > > >> Best > > >> Erick > > >> > > >> On Tue, Jul 9, 2013 at 4:09 AM, imran khan <imrankhan.x...@gmail.com> > > >> wrote: > > >> > Greetings, > > >> > > > >> > I am using nutch 2.x as my datasource for Solr 4.3.0. And nutch > passes > > >> > on > > >> > its own <boost> field to my Solr schema > > >> > > > >> > <field name="boost" type="float" stored="true" indexed="false"/> > > >> > > > >> > Now due to some reason I always get <boost> = 0.0 and due to this my > > >> Solr's > > >> > document score is also always 0.0. > > >> > > > >> > Is there any way in Solr that it ignores the <boost> field's value > for > > >> its > > >> > document's score calculation ? > > >> > > > >> > Regards, > > >> > Khan > > >> > > >> > > > > > >
