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Posted to issues@spark.apache.org by "Hyukjin Kwon (JIRA)" <ji...@apache.org> on 2019/05/21 04:34:23 UTC

[jira] [Resolved] (SPARK-16969) GBTClassifier needs a raw prediction column

     [ https://issues.apache.org/jira/browse/SPARK-16969?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon resolved SPARK-16969.
----------------------------------
    Resolution: Incomplete

> GBTClassifier needs a raw prediction column
> -------------------------------------------
>
>                 Key: SPARK-16969
>                 URL: https://issues.apache.org/jira/browse/SPARK-16969
>             Project: Spark
>          Issue Type: Bug
>            Reporter: Vladimir Feinberg
>            Priority: Major
>              Labels: bulk-closed
>
> When working with a skewed-label dataset I found the GBTClassifier pretty unusable because it performs an automatic thresholding at the halfway point, without exposing the raw prediction.
> This prevents use of different thresholds and any of the BinaryClassificationEvaluator tools.



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