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https://issues.apache.org/jira/browse/LUCENE-2341?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12849114#action_12849114
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Dawid Weiss commented on LUCENE-2341:
-------------------------------------
Oh, I forgot about this -- yes, you're right, it can emit multiple lemmas
(including their morphology). An example from the test case:
{noformat}
final IStemmer s = new PolishStemmer();
final String word = "liga";
final List<WordData> response = s.lookup(word);
final HashSet<String> stems = new HashSet<String>();
final HashSet<String> tags = new HashSet<String>();
for (WordData wd : response) {
stems.add(wd.getStem().toString());
tags.add(wd.getTag().toString());
assertSame(word, wd.getWord());
}
assertTrue(stems.contains("ligać"));
assertTrue(stems.contains("liga"));
assertTrue(tags.contains("subst:sg:nom:f"));
assertTrue(tags.contains("verb:fin:sg:ter:imperf"));
{noformat}
This raises the question how we want to handle multiple stems... should they be
indexed on overlapping positions?
> explore morfologik integration
> ------------------------------
>
> Key: LUCENE-2341
> URL: https://issues.apache.org/jira/browse/LUCENE-2341
> Project: Lucene - Java
> Issue Type: New Feature
> Components: contrib/analyzers
> Reporter: Robert Muir
>
> Dawid Weiss mentioned on LUCENE-2298 that there is another Polish stemmer
> available:
> http://sourceforge.net/projects/morfologik/
> This works differently than LUCENE-2298, and ideally would be another option
> for users.
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