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  1. Spark
  2. SPARK-27777

Eliminate uncessary sliding job in AreaUnderCurve

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: 3.0.0
    • Fix Version/s: 3.0.0
    • Component/s: ML
    • Labels:
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      Description

      Current impl of {AreaUnderCurve} use {SlidingRDD} to perform sliding, in which a prepending job is needed to compute the head items on each partition.

      However, this job can be eliminated in computation of AUC by collecting local areas and head/last at once.

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              • Assignee:
                podongfeng zhengruifeng
                Reporter:
                podongfeng zhengruifeng
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                • Created:
                  Updated:
                  Resolved: