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https://issues.apache.org/jira/browse/SPARK-10394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14725133#comment-14725133
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Apache Spark commented on SPARK-10394:
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User 'yanboliang' has created a pull request for this issue:
https://github.com/apache/spark/pull/8552
> Make GBTParams use shared "stepSize"
> ------------------------------------
>
> Key: SPARK-10394
> URL: https://issues.apache.org/jira/browse/SPARK-10394
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Reporter: Yanbo Liang
> Priority: Minor
>
> GBTParams has "stepSize" as learning rate currently.
> ML has shared param class "HasStepSize", GBTParams can extend from it rather
> than duplicated implementation.
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