lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Paul taylor (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-2557) FuzzyQuery - fuzzy terms and misspellings are ranked higher than exact matches
Date Fri, 09 Mar 2012 14:20:58 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13226089#comment-13226089
] 

Paul taylor commented on LUCENE-2557:
-------------------------------------

This would prevent prefix matches from being higher then exact matches but doesn't work for
the opposite problem, the differential between exact score match and prefix match only is
too great when using constant score for prefix queries, and unreliable when prefix queries
are scored. BUt I think my link explains it much more clearly.
                
> FuzzyQuery - fuzzy terms and misspellings are ranked higher than exact matches
> ------------------------------------------------------------------------------
>
>                 Key: LUCENE-2557
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2557
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: core/query/scoring
>    Affects Versions: 3.0.2
>            Reporter: Jingkei Ly
>         Attachments: LUCENE-2557.patch, idf-scoring-test-case.patch
>
>
> The FuzzyQuery often causes misspellings to be ranked higher than the exact match, which
seems to be an undesirable property generally. 
> For example, in an index of surnames, if I search using a FuzzyQuery for "smith", the
misspellings such as "smiith", or "smiht" would appear near the top of the search results
ahead of documents that match "smith".

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

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


Mime
View raw message