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From "Weichen Xu (JIRA)" <>
Subject [jira] [Created] (SPARK-16697) redundant RDD computation in LDAOptimizer
Date Sun, 24 Jul 2016 13:52:20 GMT
Weichen Xu created SPARK-16697:

             Summary: redundant RDD computation in LDAOptimizer
                 Key: SPARK-16697
             Project: Spark
          Issue Type: Improvement
          Components: ML, MLlib
    Affects Versions: 2.0.1, 2.1.0
            Reporter: Weichen Xu

In mllib.clustering.LDAOptimizer
the submitMiniBatch method,

the stats: RDD do not persist but the following code will use it twice.
so it cause redundant computation on it.

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