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From "Joseph K. Bradley (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-17692) Document ML/MLlib behavior changes in Spark 2.1
Date Tue, 25 Oct 2016 19:04:59 GMT

    [ https://issues.apache.org/jira/browse/SPARK-17692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15606178#comment-15606178
] 

Joseph K. Bradley commented on SPARK-17692:
-------------------------------------------

[SPARK-17870] changes the output of ChiSqSelector.  It is a bug fix, so it is an acceptable
change of behavior.

> Document ML/MLlib behavior changes in Spark 2.1
> -----------------------------------------------
>
>                 Key: SPARK-17692
>                 URL: https://issues.apache.org/jira/browse/SPARK-17692
>             Project: Spark
>          Issue Type: Documentation
>          Components: ML, MLlib
>            Reporter: Yanbo Liang
>            Assignee: Yanbo Liang
>              Labels: 2.1.0
>
> This JIRA records behavior changes of ML/MLlib between 2.0 and 2.1, so we can note those
changes (if any) in the user guide's Migration Guide section. If you found one, please comment
below and link the corresponding JIRA here.
> * SPARK-17389: Reduce KMeans default k-means|| init steps to 2 from 5.  
> * SPARK-17870: ChiSquareSelector use pValue rather than raw statistic for SelectKBest
features.



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