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Boosting numerical field
Hi,

Is there anyway in a query, I can boost the relevance of a hit based on the value of a numerical field in the index. i.e higher the value of the field, more relevant the hit is.

Kind regards
Meeraj

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Re: Boosting numerical field [ In reply to ]
> Is there anyway in a query, I can boost the relevance of a
> hit based on the value of a numerical field in the index.
> i.e higher the value of the field, more relevant the hit
> is.

Yes it is possible. Like view count, popularity etc. You can use e(dismax)'s bf boosting function (additive or multiplicative.

http://wiki.apache.org/solr/ExtendedDisMax#boost_.28Boost_Function.2C_multiplicative.29

http://wiki.apache.org/solr/ExtendedDisMax#bf_.28Boost_Function.2C_additive.29

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Re: Boosting numerical field [ In reply to ]
Thank you

Sent from my iPad

On 19 May 2012, at 09:07, Ahmet Arslan <iorixxx@yahoo.com> wrote:

>
>> Is there anyway in a query, I can boost the relevance of a
>> hit based on the value of a numerical field in the index.
>> i.e higher the value of the field, more relevant the hit
>> is.
>
> Yes it is possible. Like view count, popularity etc. You can use e(dismax)'s bf boosting function (additive or multiplicative.
>
> http://wiki.apache.org/solr/ExtendedDisMax#boost_.28Boost_Function.2C_multiplicative.29
>
> http://wiki.apache.org/solr/ExtendedDisMax#bf_.28Boost_Function.2C_additive.29
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>

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Re: Boosting numerical field [ In reply to ]
Hi,

Is this available only with Solr or would it work if I am using plain
Lucene?

Regards
Meeraj

On Sat, May 19, 2012 at 9:07 AM, Ahmet Arslan <iorixxx@yahoo.com> wrote:

>
> > Is there anyway in a query, I can boost the relevance of a
> > hit based on the value of a numerical field in the index.
> > i.e higher the value of the field, more relevant the hit
> > is.
>
> Yes it is possible. Like view count, popularity etc. You can use
> e(dismax)'s bf boosting function (additive or multiplicative.
>
>
> http://wiki.apache.org/solr/ExtendedDisMax#boost_.28Boost_Function.2C_multiplicative.29
>
>
> http://wiki.apache.org/solr/ExtendedDisMax#bf_.28Boost_Function.2C_additive.29
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
>
RE: Boosting numerical field [ In reply to ]
You can use CustomScoreQuery with ValueSources.

-----
Uwe Schindler
H.-H.-Meier-Allee 63, D-28213 Bremen
http://www.thetaphi.de
eMail: uwe@thetaphi.de

> -----Original Message-----
> From: Meeraj Kunnumpurath [mailto:meeraj.kunnumpurath@asyska.com]
> Sent: Saturday, May 19, 2012 1:20 PM
> To: java-user@lucene.apache.org
> Subject: Re: Boosting numerical field
>
> Hi,
>
> Is this available only with Solr or would it work if I am using plain
Lucene?
>
> Regards
> Meeraj
>
> On Sat, May 19, 2012 at 9:07 AM, Ahmet Arslan <iorixxx@yahoo.com> wrote:
>
> >
> > > Is there anyway in a query, I can boost the relevance of a hit based
> > > on the value of a numerical field in the index.
> > > i.e higher the value of the field, more relevant the hit is.
> >
> > Yes it is possible. Like view count, popularity etc. You can use
> > e(dismax)'s bf boosting function (additive or multiplicative.
> >
> >
> > http://wiki.apache.org/solr/ExtendedDisMax#boost_.28Boost_Function.2C_
> > multiplicative.29
> >
> >
> > http://wiki.apache.org/solr/ExtendedDisMax#bf_.28Boost_Function.2C_add
> > itive.29
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > For additional commands, e-mail: java-user-help@lucene.apache.org
> >
> >


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