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https://issues.apache.org/jira/browse/LUCENE-4782?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13582823#comment-13582823
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Commit Tag Bot commented on LUCENE-4782:
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[branch_4x commit] Tommaso Teofili
http://svn.apache.org/viewvc?view=revision&revision=1448210
LUCENE-4782 - backported fix to branch_4x
> Let the NaiveBayes classifier have a fallback docCount method if codec
> doesn't support Terms#docCount()
> -------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-4782
> URL: https://issues.apache.org/jira/browse/LUCENE-4782
> Project: Lucene - Core
> Issue Type: Bug
> Components: modules/classification
> Reporter: Tommaso Teofili
> Assignee: Tommaso Teofili
> Fix For: 4.2, 5.0
>
>
> In _SimpleNaiveBayesClassifier_ _docsWithClassSize_ variable is initialized
> to _MultiFields.getTerms(this.atomicReader,
> this.classFieldName).getDocCount()_ which may be -1 if the codec doesn't
> support doc counts, therefore there should be an alternative way to
> initialize such a variable with the documents count.
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