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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2016/08/09 10:44:21 UTC

[jira] [Updated] (SPARK-16934) Improve LogisticCostFun to avoid redundant serialization

     [ https://issues.apache.org/jira/browse/SPARK-16934?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen updated SPARK-16934:
------------------------------
    Summary: Improve LogisticCostFun to avoid redundant serialization  (was: Improve LogisticCostFun to avoid redundant serielization)

> Improve LogisticCostFun to avoid redundant serialization
> --------------------------------------------------------
>
>                 Key: SPARK-16934
>                 URL: https://issues.apache.org/jira/browse/SPARK-16934
>             Project: Spark
>          Issue Type: Improvement
>          Components: ML, MLlib
>            Reporter: Weichen Xu
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> The LogisticCostFun, when calculate, it will serialize closure var `featureStd` each time when called, we can improve it using broadcast var.



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