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https://issues.apache.org/jira/browse/SPARK-13952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15207444#comment-15207444
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Apache Spark commented on SPARK-13952:
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User 'sethah' has created a pull request for this issue:
https://github.com/apache/spark/pull/11903
> spark.ml GBT algs need to use random seed
> -----------------------------------------
>
> Key: SPARK-13952
> URL: https://issues.apache.org/jira/browse/SPARK-13952
> Project: Spark
> Issue Type: Bug
> Components: ML
> Reporter: Joseph K. Bradley
> Priority: Minor
>
> SPARK-12379 copied the GBT implementation from spark.mllib to spark.ml.
> There was one bug I found: The random seed is not used. A reasonable fix
> will be to use the original seed to generate a new seed for each tree trained.
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