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Posted to issues@opennlp.apache.org by "Jeff Zemerick (Jira)" <ji...@apache.org> on 2022/01/19 13:58:00 UTC

[jira] [Updated] (OPENNLP-1266) Limit normalization regexes in UrlCharSequenceNormalizer

     [ https://issues.apache.org/jira/browse/OPENNLP-1266?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jeff Zemerick updated OPENNLP-1266:
-----------------------------------
    Fix Version/s:     (was: 1.9.4)

> Limit normalization regexes in UrlCharSequenceNormalizer
> --------------------------------------------------------
>
>                 Key: OPENNLP-1266
>                 URL: https://issues.apache.org/jira/browse/OPENNLP-1266
>             Project: OpenNLP
>          Issue Type: Task
>            Reporter: Tim Allison
>            Assignee: Tim Allison
>            Priority: Major
>
> The {{MAIL_REGEX}} in UrlCharSequenceNormalizer is unbounded and requires backtracking. In rare cases, this can cause eye-opening performance costs.
>  
> I tested the other regexes in the other normalizers.  I could be wrong, but they don't appear to require backtracking, and there are no surprising performance costs.



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