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List:       lucene-user
Subject:    Re: Custom Similarity
From:       Erick Erickson <erickerickson () gmail ! com>
Date:       2018-02-08 17:03:23
Message-ID: CAN4YXvfhrGwVDnTj+gGj8P0B2M2gjmnRQEgRVc-n=k5M0myArw () mail ! gmail ! com
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As of Solr 6.6, payload support has been added to Solr, see:
SOLR-1485. Before that, it was much more difficult, see:
https://lucidworks.com/2014/06/13/end-to-end-payload-example-in-solr/

Best,
Erick

On Thu, Feb 8, 2018 at 8:36 AM, Ahmet Arslan <iorixxx@yahoo.com.invalid> wrote:
> 
> 
> Hi Roy,
> 
> 
> In order to activate payloads during scoring, you need to do two separate things at \
>                 the same time:
> * use a payload aware query type: org.apache.lucene.queries.payloads.*
> * use payload aware similarity
> 
> Here is an old post that might inspire you :  \
> https://lucidworks.com/2009/08/05/getting-started-with-payloads/ 
> 
> Ahmet
> 
> 
> 
> On Saturday, January 27, 2018, 5:43:36 PM GMT+3, Dwaipayan Roy \
> <dwaipayan.roy@gmail.com> wrote: 
> 
> 
> 
> 
> Thanks for your replies. But still, I am not sure about the way to do the
> thing. Can you please provide me with an example code snippet or, link to
> some page where I can find one?
> 
> Thanks..
> 
> On Tue, Jan 16, 2018 at 3:28 PM, Dwaipayan Roy <dwaipayan.roy@gmail.com>
> wrote:
> 
> > I want to make a scoring function that will score the documents by the
> > following function:
> > given Q = {q1, q2, ... }
> > score(D,Q) =
> > for all qi:
> > SUM of {
> > LOG { weight_1(qi) + weight_2(qi) + weight_3(qi) }
> > }
> > 
> > I have stored weight_1, weight_2 and weight_3 for all term of all
> > documents as payload, with payload delimiter = | (pipe) during indexing.
> > 
> > However, I am not sure on how to integrate all the weights during
> > retrieval. I am sure that I have to @Override some score() but not sure
> > about the exact class.
> > 
> > Please help me here.
> > 
> > Best,
> > Dwaipayan..
> 
> > 
> > 
> 
> 
> --
> Dwaipayan Roy.

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