[jira] [Updated] (SPARK-29942) Impl Complement Naive Bayes Classifier

["zhengruifeng (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-29942?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

zhengruifeng updated SPARK-29942:
---------------------------------
    Fix Version/s:     (was: 3.1.0)
                   3.0.0

> Impl Complement Naive Bayes Classifier
> --------------------------------------
>
>                 Key: SPARK-29942
>                 URL: https://issues.apache.org/jira/browse/SPARK-29942
>             Project: Spark
>          Issue Type: Improvement
>          Components: ML
>    Affects Versions: 3.0.0
>            Reporter: zhengruifeng
>            Assignee: zhengruifeng
>            Priority: Major
>             Fix For: 3.0.0
>
>
> 1, it is said in [scikit-learn|https://scikit-learn.org/stable/modules/naive_bayes.html#complement-naive-bayes] that 'CNB regularly outperforms MNB (often by a considerable margin) on text classification tasks.'
> 2, the training part of CNB is highly similar to existing MNB, so it is a easy win to support CNB.



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