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https://issues.apache.org/jira/browse/LUCENE-1297?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12601397#action_12601397
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Thomas Morton commented on LUCENE-1297:
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I think the dice coefficient would be nice to have. I'm not sure the jaccard
index makes sense in the context of spelling correction since order isn't
captured. I implemented JaroWinkler since I'm suggesting proper names and it
does a good job with those.
With the StringDistance interface defined, anyone can implement the distance
measure however they want. What I think would be very useful is weighted
version of edit distance with the weights tuned to your target language/domain.
Also with support in solr for specifying this parameter in the
SpellCheckRequestHandler, changing this just becomes a config change.
> Allow other string distance measures in spellchecker
> ----------------------------------------------------
>
> Key: LUCENE-1297
> URL: https://issues.apache.org/jira/browse/LUCENE-1297
> Project: Lucene - Java
> Issue Type: New Feature
> Components: contrib/spellchecker
> Affects Versions: 2.4
> Environment: n/a
> Reporter: Thomas Morton
> Assignee: Otis Gospodnetic
> Priority: Minor
> Fix For: 2.4
>
> Attachments: string_distance.patch
>
>
> Updated spelling code to allow for other string distance measures to be used.
> Created StringDistance interface.
> Modified existing Levenshtein distance measure to implement interface (and
> renamed class).
> Verified that change to Levenshtein distance didn't impact runtime
> performance.
> Implemented Jaro/Winkler distance metric
> Modified SpellChecker to take distacne measure as in constructor or in set
> method and to use interface when calling.
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