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https://issues.apache.org/jira/browse/LUCENE-7672?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15847238#comment-15847238
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ASF GitHub Bot commented on LUCENE-7672:
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GitHub user QuasiChameleon opened a pull request:
https://github.com/apache/lucene-solr/pull/152
Added log prior calculations in CachingNaiveBayesClassifier.
Jira issue :
[LUCENE-7672](https://issues.apache.org/jira/browse/LUCENE-7672)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/QuasiChameleon/lucene-solr master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/lucene-solr/pull/152.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #152
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commit 4d2d6c91fcd1eb8214ac3c9e5ec8a2c07d0d0374
Author: Kevin Crosby <[email protected]>
Date: 2017-01-31T18:05:20Z
Added log prior calculations in CachingNaiveBayesClassifier.
----
> CachingNaiveBayesClassifier doesn't compute log prior.
> ------------------------------------------------------
>
> Key: LUCENE-7672
> URL: https://issues.apache.org/jira/browse/LUCENE-7672
> Project: Lucene - Core
> Issue Type: Bug
> Components: modules/classification
> Affects Versions: master (7.0), 6.3, 6.4, 6.5, 6.4.1, 6.5.0
> Reporter: Kevin Crosby
> Labels: newbie, patch
> Fix For: master (7.0)
>
> Attachments: LUCENE-7672.patch
>
>
> The CachingNaiveBayesClassifier gives different results than the
> SimpleNaiveBayesClassifier. This is due to the fact that the
> CachineNaiveBayesClassifier does not calculate the log prior on the class
> (category) names, as it should.
> This bug has been fixed, and a patch has been attached to this issue.
> This affects master, as well as previous releases up to version 6.4.
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