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  1. Spark
  2. SPARK-22009

Using treeAggregate improve some algs

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: 2.3.0
    • Fix Version/s: 2.3.0
    • Component/s: ML
    • Labels:
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      Description

      I test on a dataset of about 13M instances, and found that using `treeAggregate` give a speedup in following algs:

      OneHotEncoder ~ 5%
      StatFunctions.calculateCov ~ 7%
      StatFunctions.multipleApproxQuantiles ~ 9%
      RegressionEvaluator ~ 8%

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            • Assignee:
              podongfeng zhengruifeng
              Reporter:
              podongfeng zhengruifeng
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                Updated:
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