[jira] [Created] (IGNITE-5894) Implement Gini impurity calculator for column-based decision trees.

[Artem Malykh (JIRA)]

Artem Malykh created IGNITE-5894:
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             Summary: Implement Gini impurity calculator for column-based 
decision trees.
                 Key: IGNITE-5894
                 URL: https://issues.apache.org/jira/browse/IGNITE-5894
             Project: Ignite
          Issue Type: Improvement
            Reporter: Artem Malykh






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