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https://issues.apache.org/jira/browse/SPARK-15119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joseph K. Bradley updated SPARK-15119:
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Issue Type: Improvement (was: Bug)
> 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
>
> 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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