Manish Amde created SPARK-1544:
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Summary: Add support for creating 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
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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