Mailing-List: contact java-user-help@lucene.apache.org; run by ezmlm
Precedence: bulk
Reply-To: java-user@lucene.apache.org
Received-SPF: pass (nike.apache.org: domain of lists@nabble.com designates
 216.139.236.158 as permitted sender)
Message-ID: <27730729.post@talk.nabble.com>
Date: Sat, 27 Feb 2010 12:30:26 -0800 (PST)
From: PlusPlus <r.shahidinejad@gmail.com>
To: java-user@lucene.apache.org
Subject: Changing TF method
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit


Hi, 

   I want to change the Lucene's similarity in a way that I can add Fuzzy
memberships to the terms of a document. Thus, TF value of a term in one
document is not always 1, it can add 0.7 to the value of the TF ( (In my
application, each term is contained in a document at most once). This
membership value is available before index time. 

   On the other hand, each occurrence of a word will not be considered as 1
documentfrequency for the IDF formula. 

   I was wondering if I can change the TF and IDF values of the terms like
this. So far, I know that I can change the impact of TF values on the
scoring, but not this thing that I'm looking for. 

Best, 
Reza 
-- 
View this message in context: http://old.nabble.com/Changing-TF-method-tp27730729p27730729.html
Sent from the Lucene - Java Users mailing list archive at Nabble.com.


---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-user-help@lucene.apache.org