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https://issues.apache.org/jira/browse/LUCENE-2557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12892297#action_12892297
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Robert Muir commented on LUCENE-2557:
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so here is an option for this issue. we could reword the whole issue as
'improve FuzzyQuery defaults'.
If we were to do this, i would suggest the following at the minimum:
* instead of a default distance of 0.5 (from queryparser), if distance isnt
provided (~0.6 etc), calculate one that will perform well and never brute-force
compare all the terms.
* instead of a default max expansions of booleanquery max clause count (1024),
use a more reasonable # of expansions by default (such as 50)
* instead of the current rewrite, use a rewrite similar to FuzzyLikeThis. maybe
we dont need to average docfreq across all 50 terms even, maybe the top-5 or so
is sufficient.
If we were to do something like this, maybe we could improve performance and
behavior instead of making tradeoffs.
> 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: Query/Scoring
> Affects Versions: 3.0.2
> Reporter: Jingkei Ly
> Attachments: idf-scoring-test-case.patch, LUCENE-2557.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".
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