Are similarity scores computed when using sort?

["Aphinyanaphongs, Yindalon" <pi...@Vanderbilt.Edu>]

I have an search application that is very performance conscious.  I've looked through the IndexSearcher code, and haven't been able to clarify whether a similarity score is calculated if the results are sorted by some numerical field value? Basically, it would be preferable to not incur the computational cost of generating a similarity score if it is never used.

Thanks
Yin
 

Re: Are similarity scores computed when using sort?

[Erik Hatcher <er...@ehatchersolutions.com>]

Yes, Similarity is still computed.  It has to be in order to determine 
if the documents considered are a hit or not.  Scores of 0 are not a 
hit.

You certainly could simplify the Similarity computations though, by 
creating your own implementation and returning 1 from all the methods.

	Erik

On Nov 27, 2004, at 2:46 AM, Aphinyanaphongs, Yindalon wrote:

> I have an search application that is very performance conscious.  I've 
> looked through the IndexSearcher code, and haven't been able to 
> clarify whether a similarity score is calculated if the results are 
> sorted by some numerical field value? Basically, it would be 
> preferable to not incur the computational cost of generating a 
> similarity score if it is never used.
>
> Thanks
> Yin
>


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