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https://issues.apache.org/jira/browse/LUCENE-2503?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Muir updated LUCENE-2503:
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Attachment: LUCENE-2503.patch
I updated the patch, I think this is ready to go:
* added finnish
* created vocabulary tests from reference C,perl,whatever impls, and
found/fixed bugs in every language but en,pt,fr (as promised in my last comment)
* created a VocabularyAssert junit util class, and refactored the existing
snowball,porter,german,and russian tests to use it, too.
* refactored a bunch of utility stuff that was duplicated everywhere such as
endsWith()/delete() and put it in StemmerUtil.
to apply the patch, first apply the patch itself, then please unzip the zip
file containing vocabulary tests (LUCENE-2503_modules_analysis_testdata.zip)
from the modules/analysis/common dir.
if no one objects, i'll commit in a few days.
> light/minimal stemming for euro languages
> -----------------------------------------
>
> Key: LUCENE-2503
> URL: https://issues.apache.org/jira/browse/LUCENE-2503
> Project: Lucene - Java
> Issue Type: New Feature
> Components: contrib/analyzers
> Affects Versions: 3.1, 4.0
> Reporter: Robert Muir
> Assignee: Robert Muir
> Priority: Minor
> Fix For: 3.1, 4.0
>
> Attachments: LUCENE-2503.patch, LUCENE-2503.patch
>
>
> The snowball stemmers are very aggressive and it would be nice if there were
> lighter alternatives.
> Some applications may want to perform less aggressive stemming, for example:
> http://www.lucidimagination.com/search/document/5d16391e21ca6faf/plural_only_stemmer
> Good, relevance tested algorithms exist and I think we should provide these
> alternatives.
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