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https://issues.apache.org/jira/browse/LUCENE-9112?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Markus Jelsma updated LUCENE-9112:
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Attachment: LUCENE-9112-unittest.patch
> OpenNLP tokenizer is fooled by text containing spurious punctuation
> -------------------------------------------------------------------
>
> Key: LUCENE-9112
> URL: https://issues.apache.org/jira/browse/LUCENE-9112
> Project: Lucene - Core
> Issue Type: Bug
> Components: modules/analysis
> Affects Versions: master (9.0)
> Reporter: Markus Jelsma
> Priority: Major
> Labels: opennlp
> Fix For: master (9.0)
>
> Attachments: LUCENE-9112-unittest.patch
>
>
> The OpenNLP tokenizer show weird behaviour when text contains spurious
> punctuation such as having triple dots trailing a sentence...
> # the first dot becomes part of the token, having 'sentence.' becomes the
> token
> # much further down the text, a seemingly unrelated token is then suddenly
> split up, in my example the name 'Baron' is split into 'Baro' and 'n', this
> is the real problem
> The problems never seem to occur when using small texts in unit tests but it
> certainly does in real world examples. Depending on how many 'spurious' dots,
> a completely different term can become split, or the same term in just a
> different location.
> I am not too sure if this is actually a problem in the Lucene code, but it is
> a problem and i have a Lucene unit test proving the problem.
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