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https://issues.apache.org/jira/browse/LUCENE-4063?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13287408#comment-13287408
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Tanguy Moal edited comment on LUCENE-4063 at 6/1/12 1:55 PM:
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I agree with both of you, it sounds like a design change.
I think Jacques Savoy's algorithm was intended to be used on words. Not on
numbers, or mixes of both (like in 22h00).
Which is true for any stemmer, I think. That's why on the mailing I also
suggested we could have each stemmer share a common interface that would filter
non-stemmable literals out of the way. That could prevent the same issue to
rise from a different stemming implementation.
I'm just saying this as I think about it.
was (Author: tanguy):
I agree with both of you, it sounds like a design change.
I think Jacques Savoy's algorithm was intended to be used on words. Not on
numbers, or mixes of both (like in 22h00).
Which is true for any stemmer, I think. That's why on the mailing I also
suggested we could have each stemmer share a common interface that would filter
non-stemmable literals out of the way. That could prevent the same issue to
raise from a different stemming implementation.
I'm just saying this as I think about it.
> FrenchLightStemmer performs abusive compression of (arbitrary) repeated
> characters in long tokens
> -------------------------------------------------------------------------------------------------
>
> Key: LUCENE-4063
> URL: https://issues.apache.org/jira/browse/LUCENE-4063
> Project: Lucene - Java
> Issue Type: Improvement
> Components: modules/analysis
> Affects Versions: 3.4, 4.0
> Reporter: Tanguy Moal
> Assignee: Steven Rowe
> Priority: Minor
> Fix For: 4.0
>
> Attachments: LUCENE-4063.patch, SOLR-3463.patch, SOLR-3463.patch,
> SOLR-3463.patch
>
>
> FrenchLightStemmer performs aggressive deletions on repeated character
> sequences, even on numbers.
> This might be unexpected during full text search.
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