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From "Thomas Morton (JIRA)" <>
Subject [jira] Updated: (LUCENE-1297) Allow other string distance measures in spellchecker
Date Thu, 12 Jun 2008 17:12:45 GMT


Thomas Morton updated LUCENE-1297:

    Attachment: LUCENE-1297.patch

Added tests for JaroWinkler and  Levenshtein distances directly.
Added getter/setter for JaroWinker threshold and javadoc.
Moved class variables in Levenshtein into method to make it thread-safe.
Named patch appropriately.

> Allow other string distance measures in spellchecker
> ----------------------------------------------------
>                 Key: LUCENE-1297
>                 URL:
>             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: LUCENE-1297.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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