Hi Allessandro,

Thanks for your reply! Yes, the document are in the same result list and
I'm not doing any indexing at the moment and executed a commit just to be
sure. Still the same result. It is an environment with 4 shards. Perhaps
that plays a factor?

Thanks,
Sjoerd

On Sun, Dec 5, 2021 at 11:02 AM Alessandro Benedetti <a.benede...@sease.io>
wrote:

> It's seems like the underline index changed.
> Are those two documents in the same result set?
> Is it just one query?
> It's definitely curious, even if a commit happened search results are
> consistent in one searcher.
>
>
> On Sun, 5 Dec 2021, 16:28 Sjoerd Smeets, <ssme...@gmail.com> wrote:
>
>> Hi all,
>>
>> I'm debugging the relevancy scores of my query and I see the following for
>> two documents hits. My question is, why is the idf score not the same for
>> both documents? This is Solr 6.6.
>>
>> Any guidance would be much appreciated.
>>
>> Thanks!
>>
>> *Doc1*
>> "71d72354eea23b9eae934ab616e8ce38de69d760": "
>> 104.994415 = sum of:
>>   104.994415 = sum of:
>>     82.89969 = weight(stemmed_data.timenote.narratives:remedi in 22470)
>> [SchemaSimilarity], result of:
>>       82.89969 = score(freq=9.0), computed as boost * idf * tf from:
>>         100.0 = boost
>>         0.87546873 = idf, computed as log(1 + (N - n + 0.5) / (n + 0.5))
>> from:
>>           *52 = n, number of documents containing term*
>>           *125 = N, total number of documents with field*
>>         0.9469177 = tf, computed as freq / (freq + k1 * (1 - b + b * dl /
>> avgdl)) from:
>>           9.0 = freq, occurrences of term within document
>>           1.2 = k1, term saturation parameter
>>           0.75 = b, length normalization parameter
>>           12312.0 = dl, length of field (approximate)
>>           54179.03 = avgdl, average length of field
>>     22.09473 = weight(stemmed_data.timenote.matters:remedi in 22470)
>> [SchemaSimilarity], result of:
>>       22.09473 = score(freq=4.0), computed as boost * idf * tf from:
>>         10.0 = boost
>>         2.4308395 = idf, computed as log(1 + (N - n + 0.5) / (n + 0.5))
>> from:
>>           *9 = n, number of documents containing term*
>>           *107 = N, total number of documents with field*
>>         0.9089341 = tf, computed as freq / (freq + k1 * (1 - b + b * dl /
>> avgdl)) from:
>>           4.0 = freq, occurrences of term within document
>>           1.2 = k1, term saturation parameter
>>           0.75 = b, length normalization parameter
>>           5656.0 = dl, length of field (approximate)
>>           50520.543 = avgdl, average length of field
>>   0.0 = FunctionQuery(int(s_integer_search.previews)), product of:
>>     0.0 = int(s_integer_search.previews)=0
>>     1.0 = boost
>>   0.0 = FunctionQuery(int(s_integer_search.downloads)), product of:
>>     0.0 = int(s_integer_search.downloads)=0
>>     1.0 = boost
>> "
>>
>> *Doc2*
>> "80302a1ecc44d1e556970ab96c25b1fd3328a854": "
>> 84.61461 = sum of:
>>   84.61461 = sum of:
>>     64.68881 = weight(stemmed_data.timenote.narratives:remedi in 0)
>> [SchemaSimilarity], result of:
>>       64.68881 = score(freq=493.0), computed as boost * idf * tf from:
>>         100.0 = boost
>>         0.65094686 = idf, computed as log(1 + (N - n + 0.5) / (n + 0.5))
>> from:
>>           *60 = n, number of documents containing term*
>>           *115 = N, total number of documents with field*
>>         0.99376476 = tf, computed as freq / (freq + k1 * (1 - b + b * dl /
>> avgdl)) from:
>>           493.0 = freq, occurrences of term within document
>>           1.2 = k1, term saturation parameter
>>           0.75 = b, length normalization parameter
>>           229400.0 = dl, length of field (approximate)
>>           73913.91 = avgdl, average length of field
>>     19.9258 = weight(stemmed_data.timenote.matters:remedi in 0)
>> [SchemaSimilarity], result of:
>>       19.9258 = score(freq=340.0), computed as boost * idf * tf from:
>>         10.0 = boost
>>         2.0024805 = idf, computed as log(1 + (N - n + 0.5) / (n + 0.5))
>> from:
>>           *13 = n, number of documents containing term*
>>           *99 = N, total number of documents with field*
>>         0.99505585 = tf, computed as freq / (freq + k1 * (1 - b + b * dl /
>> avgdl)) from:
>>           340.0 = freq, occurrences of term within document
>>           1.2 = k1, term saturation parameter
>>           0.75 = b, length normalization parameter
>>           147480.0 = dl, length of field (approximate)
>>           95534.95 = avgdl, average length of field
>>   0.0 = FunctionQuery(int(s_integer_search.previews)), product of:
>>     0.0 = int(s_integer_search.previews)=0
>>     1.0 = boost
>>   0.0 = FunctionQuery(int(s_integer_search.downloads)), product of:
>>     0.0 = int(s_integer_search.downloads)=0
>>     1.0 = boost
>> "
>>
>

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