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From "zhengruifeng (Jira)" <j...@apache.org>
Subject [jira] [Resolved] (SPARK-30380) Refactor RandomForest.findSplits
Date Tue, 31 Dec 2019 06:17:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-30380?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

zhengruifeng resolved SPARK-30380.
----------------------------------
    Fix Version/s: 3.0.0
       Resolution: Fixed

Issue resolved by pull request 27040
[https://github.com/apache/spark/pull/27040]

> Refactor RandomForest.findSplits
> --------------------------------
>
>                 Key: SPARK-30380
>                 URL: https://issues.apache.org/jira/browse/SPARK-30380
>             Project: Spark
>          Issue Type: Improvement
>          Components: ML
>    Affects Versions: 3.0.0
>            Reporter: zhengruifeng
>            Assignee: zhengruifeng
>            Priority: Minor
>             Fix For: 3.0.0
>
>
> Current impl of {{RandomForest.findSplits}} uses {{groupByKey}} to collect non-zero values
for each feature, so it is quite dangerous.
>  
>  



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