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From "Otis Gospodnetic (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (LUCENE-1183) TRStringDistance uses way too much memory (with patch)
Date Sat, 17 May 2008 04:51:55 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-1183?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Otis Gospodnetic reassigned LUCENE-1183:
----------------------------------------

    Assignee: Otis Gospodnetic

> TRStringDistance uses way too much memory (with patch)
> ------------------------------------------------------
>
>                 Key: LUCENE-1183
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1183
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: contrib/*
>    Affects Versions: 1.9, 2.0.0, 2.1, 2.2, 2.3
>            Reporter: C├ędrik LIME
>            Assignee: Otis Gospodnetic
>            Priority: Minor
>         Attachments: FuzzyTermEnum.patch, TRStringDistance.java, TRStringDistance.patch
>
>   Original Estimate: 0.17h
>  Remaining Estimate: 0.17h
>
> The implementation of TRStringDistance is based on version 2.1 of org.apache.commons.lang.StringUtils#getLevenshteinDistance(String,
String), which uses an un-optimized implementation of the Levenshtein Distance algorithm (it
uses way too much memory). Please see Bug 38911 (http://issues.apache.org/bugzilla/show_bug.cgi?id=38911)
for more information.
> The commons-lang implementation has been heavily optimized as of version 2.2 (3x speed-up).
I have reported the new implementation to TRStringDistance.

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