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From Ahmet Arslan <>
Subject Re: Explain score is different from score
Date Fri, 18 Mar 2016 16:06:19 GMT
Hi Rajesh,

I suspect it is due to the queryNorm(q). But it is weird that relative order is different
in your example.

"queryNorm(q) is a normalizing factor used to make scores between queries comparable. This
factor does not affect document ranking (since all ranked documents are multiplied by the
same factor), but rather just attempts to make scores from different queries (or even different
indexes) comparable." [1]



On Friday, March 18, 2016 4:24 PM, Rick Sullivan <> wrote:
Hi Rajesh,

I've been seeing the same problem you have. My debug scores seem to be what I expect, but
the actual scores applied by Solr are sometimes divided by an integer.

I raised the same question in this email distribution about a week ago, but haven't yet found
a solution. There's also a StackOverflow question I created here:

Can you verify whether all of your affected scores are (1/N)*score? I think N seems to be
the number of OR elements in the query. For example, your case below has 

= 1.2517526/0.41725087
= 3


> From:
> To:
> Subject: RE: Explain score is different from score
> Date: Fri, 18 Mar 2016 13:29:14 +0000
> Can someone help?
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> From: G, Rajesh
> Sent: Friday, March 18, 2016 12:56 PM
> To:
> Subject: Explain score is different from score
> Mismatch in score displayed in debug and score field. Please refer attached xml.
> When I search for title_ws:(Microsoft Ofice 365). If the results are displayed by explain
score order then we would have the expected result “Microsoft Office 365” then “Lync
- Microsoft Office 365”
> <result name="response" numFound="13617" start="0" maxScore="1.0952835">
> <doc>
> <str name="title">Lync - Microsoft Office 365</str>
> <str name="title_ws">Lync - Microsoft Office 365</str>
> <int name="id">1722669</int>
> <float name="score">1.0952835</float></doc> Score from explain 1.0952835
> <doc>
> <str name="title">Microsoft Office 365</str>
> <str name="title_ws">Microsoft Office 365</str>
> <int name="id">2043876</int>
> <float name="score">0.41725087</float></doc> Score from explain 1.2517526
> </result>
> Thanks
> Rajesh

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