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From msftbl...@aol.com
Subject Re: who could tell me the equation of the scoring in detail? i'm confused about two days
Date Thu, 06 Oct 2005 16:45:47 GMT
Your site is down...but I would also liek to read that doc. 
 
-----Original Message-----
From: jian chen <chenjian1227@gmail.com>
To: java-user@lucene.apache.org; chai qiaozi <chaiqiaozi@gmail.com>
Sent: Tue, 4 Oct 2005 20:38:25 -0700
Subject: Re: who could tell me the equation of the scoring in detail? i'm confused about two
days


Hi,

Lucene uses a variant version of vector space model for ranking the
documents.

You can look at
1)
http://lucene.apache.org/java/docs/api/org/apache/lucene/search/Similarity.htmlfor
the fomula,

2) there is an article some one wrote about the Lucene's Ranking function
vs. standard vsm. However, that link has been removed and I think it does
not exist anymore. I still keep a copy of that file, so, you may download it
from my website at the following url:
http://jhsystems.net:9090/lucene_ranking.pdf

Let me know of any other problem.

Cheers,

Jian

On 10/4/05, chai qiaozi <chaiqiaozi@gmail.com> wrote:
>
> hello everyone,
> I'm a newer to lucence.
> I want to know the scoring algorithm in lucence. but there are
> many different explations aobut it, who may give me the scoring
> equation in detail please?
> thank you in advance!
>
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