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https://issues.apache.org/jira/browse/SPARK-4583?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiangrui Meng resolved SPARK-4583.
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Resolution: Fixed
Fix Version/s: 1.2.0
Issue resolved by pull request 3474
[https://github.com/apache/spark/pull/3474]
> GradientBoostedTrees error logging should use loss being minimized
> ------------------------------------------------------------------
>
> Key: SPARK-4583
> URL: https://issues.apache.org/jira/browse/SPARK-4583
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Affects Versions: 1.2.0
> Reporter: Joseph K. Bradley
> Assignee: Joseph K. Bradley
> Priority: Minor
> Fix For: 1.2.0
>
>
> Currently, the LogLoss used by GradientBoostedTrees has 2 issues:
> * the gradient (and therefore loss) does not match that used by Friedman
> (1999)
> * the error computation uses 0/1 accuracy, not log loss
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