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Posted to issues@spark.apache.org by "Joseph K. Bradley (JIRA)" <ji...@apache.org> on 2016/03/21 23:14:26 UTC

[jira] [Updated] (SPARK-4607) Add random seed to GradientBoostedTrees

     [ https://issues.apache.org/jira/browse/SPARK-4607?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joseph K. Bradley updated SPARK-4607:
-------------------------------------
    Target Version/s: 2.0.0

> Add random seed to GradientBoostedTrees
> ---------------------------------------
>
>                 Key: SPARK-4607
>                 URL: https://issues.apache.org/jira/browse/SPARK-4607
>             Project: Spark
>          Issue Type: Improvement
>          Components: MLlib
>    Affects Versions: 1.2.0
>            Reporter: Joseph K. Bradley
>            Priority: Minor
>
> Gradient Boosted Trees does not take a random seed, but it uses randomness if the subsampling rate is < 1.  It should take a random seed parameter.
> This update will also help to make unit tests more stable by allowing determinism (using a small set of fixed random seeds).



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