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Posted to issues@systemml.apache.org by "LI Guobao (JIRA)" <ji...@apache.org> on 2018/06/17 21:05:00 UTC

[jira] [Resolved] (SYSTEMML-2406) Paramserv low accuracy with EPOCH update frequency

     [ https://issues.apache.org/jira/browse/SYSTEMML-2406?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

LI Guobao resolved SYSTEMML-2406.
---------------------------------
       Resolution: Fixed
    Fix Version/s: SystemML 1.2

> Paramserv low accuracy with EPOCH update frequency
> --------------------------------------------------
>
>                 Key: SYSTEMML-2406
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-2406
>             Project: SystemML
>          Issue Type: Bug
>            Reporter: LI Guobao
>            Assignee: LI Guobao
>            Priority: Major
>             Fix For: SystemML 1.2
>
>
> In the EPOCH update strategy, we should aggregate the gradients generated after the local model updating and push them when each epoch finishes. Otherwise, the intermediate gradients will be lost after each local model updating and so finally, the global model should be updated with the accumulated gradients of this epoch. 



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