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Posted to dev@lucene.apache.org by "Grzegorz Sobczyk (JIRA)" <ji...@apache.org> on 2014/01/30 10:02:09 UTC
[jira] [Created] (LUCENE-5421) MorfologicFilter doesn't stem
properly invented names: surnames, rivers, etc.
Grzegorz Sobczyk created LUCENE-5421:
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Summary: MorfologicFilter doesn't stem properly invented names: surnames, rivers, etc.
Key: LUCENE-5421
URL: https://issues.apache.org/jira/browse/LUCENE-5421
Project: Lucene - Core
Issue Type: Bug
Components: modules/analysis
Affects Versions: 4.6.1
Reporter: Grzegorz Sobczyk
Morfologic filter search stems in input or lowercase format:
org.apache.lucene.analysis.morfologik.MorfologikFilter.incrementToken()
{code}
if (!keywordAttr.isKeyword() && (lookupSurfaceForm(termAtt) || lookupSurfaceForm(toLowercase(termAtt)))) {
{code}
In this situation, if input token is *sienkiewicza* - it isn't stemmed
but: *Sienkiewicza* --> *Sienkiewicz*
for comparison:
*pRoDuKtY* --> *produkt*
It should stem also input token with capitalized first letter
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