Hello Zeev ,
The only way i can think is using 2 query -
1. Find sum of all scores -
{
"aggs": {
"sum": {
"sum": {
"script": "doc.score"
}
}
}
}
2. In the second request , using scripting in function score query and
find the deviation.
Thanks
Vineeth
On Fri, Sep 12, 2014 at 7:35 PM, Zeev Sands <[email protected]> wrote:
> Hi,
>
> Thank you for the reply. Here is an example of a scoring behavior I'm
> talking about:
>
> a) given a user query a set of documents is produced. Let's call this
> set S.
> b) suppose each document has a numeric field called "F".
> The average of this field values for the set of documents S is
> calculated. Let's call this average A.
> So is A = sum(F) / N, sum(F) is the sum of the values of field F
> for each document in S, and N is |S|, the number of documents in S.
> c) final score for each document is the deviation from the average:
> score = F - A.
>
> So, in order to calculate the score for each document, I need to know "A",
> which depends on *all* documents produced by the query. This is a
> simplified example, the actual score calculation is more involved.
>
> Here is a different case, where I might like to know all the documents
> produce by a query in order to score them: I have an external server that
> handles the actual score calculation for each document, communicating
> millions of documents to this server one document at a time is expensive. I
> would prefer to first get all the documents selected by a query, then send
> all of this info to the server and get one reply containing custom scores
> for all the documents at once.
>
> While I'm at it, a quick additional question: the rescore query and
> post_filter look interesting. Is there any native (java) api to implement
> custom re-scorer or custom post_filter? Just a link to api would be very
> helpful.
>
> Thank you again,
> ZS
>
>
>
> On 09/11/2014 08:20 PM, vineeth mohan wrote:
>
> Hello ,
>
> Can you give a more elaborate explanation on the behavior of scoring you
> want ?
> I dont see any direct way to achieve this.
>
> Also re-scoring might interest you -
> http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-request-rescore.html
>
> Thanks
> Vineeth
>
> On Thu, Sep 11, 2014 at 11:19 PM, <[email protected]> wrote:
>
>>
>> Hello everyone,
>>
>> I've been playing with native scripts and have a few questions:
>>
>> Is there any notion of context for native scripts?
>>
>> For example, is there a way to know that a method "runAsDouble", for
>> example, is called for the last time?
>> I might, for instance, like to send some sort of statistics after a
>> search is done.
>>
>> Is there any way to know how many documents the search produced,
>> beforehand?
>> I might want to do some pre calculations based on this number before
>> the actual scoring begins.
>>
>> Is there any way to get all the documents (or ids) somehow to process
>> (score) them in bulk?
>> My scoring might depend on the search result, I might want to
>> calculate an average of a search result field and base my scores on this
>> number.
>>
>> I apologize in advance, if some of my questions are uninformed. I'm
>> new to ES, trying to switch from Solr.
>>
>> Thank you,
>>
>> ZS
>>
>>
>>
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "elasticsearch" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to [email protected].
>> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/elasticsearch/48643754-67cc-497c-8c84-c1565dfcb867%40googlegroups.com
>> <https://groups.google.com/d/msgid/elasticsearch/48643754-67cc-497c-8c84-c1565dfcb867%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>
> --
> You received this message because you are subscribed to a topic in the
> Google Groups "elasticsearch" group.
> To unsubscribe from this topic, visit
> https://groups.google.com/d/topic/elasticsearch/8PFme4-9Ykw/unsubscribe.
> To unsubscribe from this group and all its topics, send an email to
> [email protected].
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/elasticsearch/CAGdPd5mJ2jQ5ueZQepu8Z%2B0Sjo%3DwxhTh%3D3AvREOiJtKMaFOMXA%40mail.gmail.com
> <https://groups.google.com/d/msgid/elasticsearch/CAGdPd5mJ2jQ5ueZQepu8Z%2B0Sjo%3DwxhTh%3D3AvREOiJtKMaFOMXA%40mail.gmail.com?utm_medium=email&utm_source=footer>
> .
> For more options, visit https://groups.google.com/d/optout.
>
>
> --
> You received this message because you are subscribed to the Google Groups
> "elasticsearch" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to [email protected].
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/elasticsearch/5412FDB8.9050805%40gmail.com
> <https://groups.google.com/d/msgid/elasticsearch/5412FDB8.9050805%40gmail.com?utm_medium=email&utm_source=footer>
> .
>
> For more options, visit https://groups.google.com/d/optout.
>
--
You received this message because you are subscribed to the Google Groups
"elasticsearch" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/elasticsearch/CAGdPd5nUZW%3Doox5jfivtwga188bceXKWH8_MRi3SpH_rg2nb%2BQ%40mail.gmail.com.
For more options, visit https://groups.google.com/d/optout.
