lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Alexey Kutin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LUCENE-4959) Incorrect return value from SimpleNaiveBayesClassifier.assignClass
Date Fri, 26 Apr 2013 20:08:16 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-4959?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alexey Kutin updated LUCENE-4959:
---------------------------------

    Attachment: LUCENE-4959.patch

Replaced BytesRef.clone() with BytesRef.deepCopyOf() to let it hold on to the instance while
iterating.

Also had to change unit tests to expose the issue first.
                
> Incorrect return value from SimpleNaiveBayesClassifier.assignClass 
> -------------------------------------------------------------------
>
>                 Key: LUCENE-4959
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4959
>             Project: Lucene - Core
>          Issue Type: Bug
>    Affects Versions: 5.0, 4.2.1
>            Reporter: Alexey Kutin
>            Assignee: Adrien Grand
>              Labels: classification
>         Attachments: LUCENE-4959.patch
>
>
> The local copy of BytesRef referenced by foundClass is affected by subsequent TermsEnum.iterator.next()
calls as the shared BytesRef.bytes changes. 
> If a term "test" gives a good match and a next term in the terms collection is "classification"
with a lower match score then the return result will be "clas"

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org


Mime
View raw message