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From "Tommaso Teofili (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HAMA-669) GD partial derivatives aggregation should use Arrays.copyOf instead of copying the variable
Date Sat, 10 Nov 2012 08:19:11 GMT

     [ https://issues.apache.org/jira/browse/HAMA-669?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tommaso Teofili resolved HAMA-669.
----------------------------------

       Resolution: Fixed
    Fix Version/s: 0.6.0
         Assignee: Tommaso Teofili
    
> GD partial derivatives aggregation should use Arrays.copyOf instead of copying the variable
> -------------------------------------------------------------------------------------------
>
>                 Key: HAMA-669
>                 URL: https://issues.apache.org/jira/browse/HAMA-669
>             Project: Hama
>          Issue Type: Bug
>          Components: machine learning
>            Reporter: Tommaso Teofili
>            Assignee: Tommaso Teofili
>             Fix For: 0.6.0
>
>
> GD partial derivatives aggregation should use Arrays.copyOf instead of copying the variable
thetaDelta in newTheta as this has a different semantic and effect.
> This results in sometimes different thetas on each task

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