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From "Teruhiko Kurosaka" <K...@basistech.com>
Subject RE: Phrase query-like query that doesn't requre all the terms?
Date Fri, 14 Nov 2008 17:05:20 GMT
Yonik, 
Thank you for your reply.
My problem with Phrase Query is that it requires
existence of all the terms in documents.  I want them more
permissible.  I want it to match with lower score.
Does dismax also requires all the terms?

> Solr's dismax parser can generate queries that do most of 
> this... it's a combination of term queries and sloppy phrase queries.
> 
> Simplest example:
> +(DEF GHI) "DEF GHI"~10^5
> 
> The only thing that it doesn't work for is the terms out of 
> order (they will still be matched).  You could use span 
> queries if you really need that ordering, but sloppy phrase 
> queries already penalize the out-of-order since it's a bigger 
> edit distance (but it won't be a "severe" penalty).

----
T. "Kuro" Kurosaka, Basis Technology
San Francisco, California, U.S.A.
 

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