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From Erik Hatcher <>
Subject Re: Increase search performance
Date Mon, 02 Feb 2004 18:29:09 GMT
On Feb 2, 2004, at 10:56 AM, Albert Vila Puig wrote:
> Hi all,
>    Can I increase the search performance disabling the score 
> calculation? How can I achieve that? I only need to implement a custom 
> similarity class.
>    I want to score all matching documents with 1. My organization does 
> not need the scoring algorithm, and I'am testing if without it the 
> performance increase if better.
>    Can I score all matching documents with 1 easily? This change will 
> increase the search performace? I'am searching over multiple big 
> indexes (each one of 4Gb +/-, 5Millions documents each +/-)

I very seriously doubt that a custom Similarity class would increase 
performance, but why not try it and see?!  :)

The only thing you'd save is a bit of computation, which is probably 
negligible anyway.


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