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Posted to issues@spark.apache.org by "Hyukjin Kwon (JIRA)" <ji...@apache.org> on 2019/05/21 04:25:33 UTC

[jira] [Updated] (SPARK-15119) DecisionTreeParams.minInfoGain does not have a validator

     [ https://issues.apache.org/jira/browse/SPARK-15119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon updated SPARK-15119:
---------------------------------
    Labels: bulk-closed  (was: )

> DecisionTreeParams.minInfoGain does not have a validator
> --------------------------------------------------------
>
>                 Key: SPARK-15119
>                 URL: https://issues.apache.org/jira/browse/SPARK-15119
>             Project: Spark
>          Issue Type: Improvement
>          Components: ML
>    Affects Versions: 1.6.0, 1.6.1
>            Reporter: Dominik Jastrzębski
>            Priority: Trivial
>              Labels: bulk-closed
>
> Information gain for splits in decision trees is always non-negative (see: https://en.wikipedia.org/wiki/Mutual_information#Definition_of_mutual_information), so minInfoGain parameter in DecisionTreeParams could have a validator assuring that the value is >= 0.



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