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Posted to issues@spark.apache.org by "Wojciech Jurczyk (JIRA)" <ji...@apache.org> on 2016/01/27 08:48:39 UTC

[jira] [Created] (SPARK-13030) Change OneHotEncoder to Estimator

Wojciech Jurczyk created SPARK-13030:
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             Summary: Change OneHotEncoder to Estimator
                 Key: SPARK-13030
                 URL: https://issues.apache.org/jira/browse/SPARK-13030
             Project: Spark
          Issue Type: Improvement
          Components: ML
    Affects Versions: 1.6.0
            Reporter: Wojciech Jurczyk


OneHotEncoder should be an Estimator, just like in scikit-learn (http://scikit-learn.org/stable/modules/generated/sklearn.preprocessing.OneHotEncoder.html).
In its current form, it is impossible to use when number of categories is different between training dataset and test dataset.



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