>>I do have serious problems with the relevance of the results with fuzzy
>>queries.
Please take the time to read my response here:
http://www.gossamer-threads.com/lists/lucene/java-user/62050#62050
I had a work colleague come up with exactly the same problem this week and the
solution is the same.
Just tested my index with a standard Lucene FuzzyQuery for "Paul~" - this gives
"Phul", "Saul", and "Paulo" before ANY "Paul" records due to IDF issues.
Using FuzzyLikeThisQuery puts all the "Paul" records ahead of the variants.
----- Original Message ----
From: László Monda <[EMAIL PROTECTED]>
To: [email protected]
Cc: [EMAIL PROTECTED]
Sent: Monday, 23 June, 2008 12:10:05 PM
Subject: Re: Getting irrelevant results using fuzzy query
On Wed, 2008-06-18 at 21:10 +0200, Daniel Naber wrote:
> On Mittwoch, 18. Juni 2008, László Monda wrote:
>
> > Additional info: Lucene seems to do the right thing when only few
> > documents are present, but goes crazy when there is about 1.5 million
> > documents in the index.
>
> Lucene works well with more documents (currently using it with 9 million).
> but the fuzzy query requires iteration over all terms which makes this
> query slow. This can be avoid by setting the prefixLength parameter of the
> FuzzyQuery constructor to 1 or 2. Or maybe you should use an n-gram index,
> see the spellchecker in the contrib area.
Thanks for the suggestion, but I don't have any performance problems
yet, but I do have serious problems with the relevance of the results
with fuzzy queries.
--
Laci <http://monda.hu>
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