Customize the way relevancy is calculated

[Amitha Talasila <Am...@mindtree.com>]

Hi,

    I have the following requirement.

 

   We have an option to sort the search results by relevance. Right now we
are getting the search results making an http call

 

  If the user chooses that option, the results should be sorted based on the
relevance. But the relevance should be calculated in a particular way, for
example for a         total of 100%, key word match will contribute 35%,
availability of image for that product will contribute 15% and so on... 

 

  The 65% of the relevance can be computed while indexing the document and
posted as a field. But the keyword match is a run time score .Is there any
way of getting the relevance score as a combination of this 65% and 35%?

Any help would be appreciated.

 

Regards

Amitha

 

 



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Re: Customize the way relevancy is calculated

[Yonik Seeley <yo...@apache.org>]

On 9/18/07, Amitha Talasila <Am...@mindtree.com> wrote:
>   The 65% of the relevance can be computed while indexing the document and
> posted as a field. But the keyword match is a run time score .Is there any
> way of getting the relevance score as a combination of this 65% and 35%?

A FunctionQuery can get you the value of a field to use in a relevancy
score.  Put that it in a boolean query with the relevanct query and
boost each portion to give the correct weight.

+text:foo^.65  _val_:scorefield^.35

-Yonik