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https://issues.apache.org/jira/browse/SPARK-1544?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Manish Amde closed SPARK-1544.
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The PR has been accepted.
> Add support for deep decision trees.
> ------------------------------------
>
> Key: SPARK-1544
> URL: https://issues.apache.org/jira/browse/SPARK-1544
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Affects Versions: 1.0.0
> Reporter: Manish Amde
> Assignee: Manish Amde
> Fix For: 1.0.0
>
>
> The current tree implementation stores an Array[Double] of size O(#features \
> #splits * 2^maxDepth)* in memory for aggregating histograms over partitions.
> The current implementation might not scale to very deep trees since the
> memory requirement grows exponentially with tree depth.
> This task enables construction of arbitrary deep trees.
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