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From "Xiangrui Meng (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-4530) GradientDescent get a wrong gradient value according to the gradient formula, which is caused by the miniBatchSize parameter.
Date Tue, 25 Nov 2014 01:23:12 GMT

     [ https://issues.apache.org/jira/browse/SPARK-4530?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xiangrui Meng updated SPARK-4530:
---------------------------------
    Assignee: Guoqiang Li

> GradientDescent get a wrong gradient value according to the gradient formula, which is
caused by the miniBatchSize parameter.
> -----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-4530
>                 URL: https://issues.apache.org/jira/browse/SPARK-4530
>             Project: Spark
>          Issue Type: Bug
>          Components: MLlib
>    Affects Versions: 1.0.0, 1.1.0, 1.2.0
>            Reporter: Guoqiang Li
>            Assignee: Guoqiang Li
>
> This bug is caused by {{RDD.sample}}
> The number of  {{RDD.sample}}  returns is not fixed.



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