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From "Chong K. Tsang" <>
Subject Re: Providing my own scoring.
Date Sat, 16 Aug 2003 05:53:08 GMT
I have changed the scoring method of my own lucene-based system. I made use of the Similarity
class to create my own Similarity class. I also change some classes like TermQuery class in
order to implement my own scoring.

I hope my experience can help you, Kevin.

Chong-Ki "Ki"

On Mon, 11 Aug 2003, Kevin A. Burton wrote:

> I don't see this documented anywhere and before I start ripping apart 
> Lucene I wanted to find out if anyone has done this before.
> I want to provide my own scoring of Lucene results based on my own score 
> algorithm.  It isn't JUST based on word frequency but also a lot of 
> other metrics (think PageRank).
> The problem is that i think I am going to have to do this with my own 
> subqueries or integrating directly into IndexSearcher while doing my own 
> scoring.  Hits.doc() is expensive to say the least (I am assuming it 
> fetches all fields?) and it doesn't seem that there is a straight 
> forward way to add a visitor that will be called to develop my own 
> custom score.
> Anyone have any advice here?
> Kevin
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