Patrick Crenshaw created SPARK-9478:
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             Summary: Add class weights to Random Forest
                 Key: SPARK-9478
                 URL: https://issues.apache.org/jira/browse/SPARK-9478
             Project: Spark
          Issue Type: Improvement
          Components: ML, MLlib
    Affects Versions: 1.4.1
            Reporter: Patrick Crenshaw


Currently, this implementation of random forest does not support class weights. 
Class weights are important when there is imbalanced training data or the 
evaluation metric of a classifier is imbalanced (e.g. true positive rate at 
some false positive threshold). 



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