Have you used debugQuery=true, or fl=*,[explain], or those various
functions? It is possible to ask Solr to tell you how it calculated the
score, which will enable you to see what is going on in each case. You
can probably work it out for yourself then I suspect.
Upayavira
On Tue, Sep 17, 2013, at 08:40 AM, blopez wrote:
> Hi all,
>
> I have some doubts about the Solr scoring function. I'm using all default
> configuration, but I'm facing a wired issue with the retrieved scores.
>
> In the schema, I'm going to focus in the only field I'm interested in.
> Its
> definition is:
>
> *<fieldType name="text" class="solr.TextField" sortMissingLast="true"
> omitNorms="false">
> <analyzer type="index">
> <tokenizer
> class="solr.WhitespaceTokenizerFactory"/>
> <filter class="solr.LowerCaseFilterFactory"/>
> <filter class="solr.ASCIIFoldingFilterFactory"/>
> </analyzer>
> <analyzer type="query">
> <tokenizer
> class="solr.WhitespaceTokenizerFactory"/>
> <filter class="solr.LowerCaseFilterFactory"/>
> <filter class="solr.ASCIIFoldingFilterFactory"/>
> </analyzer>
> </fieldType>
>
> <field name="myField" type="text" indexed="true" stored="true"
> required="false" />*
>
> (omitNorms="false", if not, the document size is not taken into account
> to
> the final score)
>
> Then, I index some documents, with the following text in the 'myField'
> field:
>
> doc1 = "A B C"
> doc2 = "A B C D"
> doc3 = "A B C D E"
> doc4 = "A B C D E F"
> doc5 = "A B C D E F G H"
> doc6 = "A B C D E F G H I"
>
> Finally, I perform the query 'myField:("A" "B" "C")' in order to recover
> all
> the documents, but with different scoring (doc1 is more similar to the
> query
> than doc2, which is more similar than doc3, ...).
>
> All the documents are retrieved (OK), but the scores are like this:
>
> *doc1 = 2,590214
> doc2 = 2,590214*
> doc3 = 2,266437
> *doc4 = 1,94266
> doc5 = 1,94266*
> doc6 = 1,618884
>
> So in conclussion, as you can see the score goes down, but not the way
> I'd
> like. Doc1 is getting the same scoring than Doc2, even when Doc1 matches
> 3/3
> tokens, and Doc2 matches 3/4 tokens.
>
> Is this the normal Solr behaviour? Is there any way to get my expected
> behaviour?
>
> Thanks a lot,
> Borja.
>
>
>
> --
> View this message in context:
> http://lucene.472066.n3.nabble.com/Scoring-by-document-size-tp4090523.html
> Sent from the Solr - User mailing list archive at Nabble.com.
