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Posted to issues@spark.apache.org by "zhengruifeng (Jira)" <ji...@apache.org> on 2019/12/31 06:17:00 UTC
[jira] [Resolved] (SPARK-30380) Refactor RandomForest.findSplits
[ https://issues.apache.org/jira/browse/SPARK-30380?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
zhengruifeng resolved SPARK-30380.
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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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