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From "Uwe Schindler" <...@thetaphi.de>
Subject RE: Indexing synonyms for multiple words
Date Mon, 02 Mar 2009 15:38:49 GMT
I think his problem is, that "SYN" is a synonym for the phrase "WORD1
WORD2". Using these positions, a phrase like "SYN WORD2" would also match
(or other problems in queries that depend on order of words). 

Uwe

-----
Uwe Schindler
H.-H.-Meier-Allee 63, D-28213 Bremen
http://www.thetaphi.de
eMail: uwe@thetaphi.de

> -----Original Message-----
> From: Michael McCandless [mailto:lucene@mikemccandless.com]
> Sent: Monday, March 02, 2009 4:07 PM
> To: java-user@lucene.apache.org
> Subject: Re: Indexing synonyms for multiple words
> 
> 
> Shouldn't WORD2's position be 1 more than your SYN?
> 
> Ie, don't you want these positions?:
> 
>     WORD1  2
>     WORD2  3
>     SYN 2
> 
> The position is the starting position of the token; Lucene doesn't
> store an ending position
> 
> Mike
> 
> Sumukh wrote:
> 
> > Hi,
> >
> > I'm fairly new to Lucene. I'd like to know how we can index synonyms
> > for
> > multiple words.
> >
> > This is the scenario:
> >
> > Consider a sentence: AAA BBB WORD1 WORD2 EEE FFF GGG.
> >
> > Now assume the two words combined WORD1 WORD2 can be replaced by
> > another
> > word SYN.
> >
> > If I place SYN after WORD1 with positionIncrement set to 0, WORD2 will
> > follow SYN,
> > which is incorrect; and the other way round if I place it after WORD2.
> >
> > If any of you have solved a similar problem, I'd be thankful if you
> > could
> > share some light on
> > the solution.
> >
> > Regards,
> > Sumukh
> 
> 
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