Massimo Pasquini created LUCENE-6138:
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Summary: ItalianLightStemmer
Key: LUCENE-6138
URL: https://issues.apache.org/jira/browse/LUCENE-6138
Project: Lucene - Core
Issue Type: Bug
Components: modules/analysis
Affects Versions: 4.10.2
Reporter: Massimo Pasquini
Priority: Minor
I expect a stemmer to transform nouns in their singular and plural forms into a
shorter common form. The implementation of the ItalianLightStemmer doesn't
apply any stemming to words shorter then 6 characters in length. This leads to
some annoying results:
singular form | plural form
4|5 chars in length (no stemming)
alga -> alga | alghe -> alghe
fuga -> fuga | fughe -> fughe
lega -> lega | leghe -> leghe
5|6 chars in length (stemming only on plural form)
vanga -> vanga | vanghe -> vang
verga -> verga | verghe -> verg
I suppose that such limitation on words length is to avoid other side effects
on shorter words not in the set above, but I think something must be reviewed
in the code for better results.
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