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From "LI Guobao (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SYSTEMML-2406) Paramserv low accuracy with EPOCH update frequency
Date Sun, 17 Jun 2018 21:05:00 GMT

     [ 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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