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Posted to issues@spark.apache.org by "Joseph K. Bradley (JIRA)" <ji...@apache.org> on 2014/11/25 22:00:13 UTC

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

Joseph K. Bradley created SPARK-4607:
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             Summary: 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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