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From "wangwei (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SINGA-60) Make learning rate and param init modular
Date Wed, 19 Aug 2015 11:15:45 GMT

     [ https://issues.apache.org/jira/browse/SINGA-60?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

wangwei updated SINGA-60:
-------------------------
    Summary: Make learning rate and param init modular  (was: Make the learning rate changing
method modular)

> Make learning rate and param init modular
> -----------------------------------------
>
>                 Key: SINGA-60
>                 URL: https://issues.apache.org/jira/browse/SINGA-60
>             Project: Singa
>          Issue Type: Improvement
>            Reporter: wangwei
>
> The learning rate of SGD typically changes through time.
> There are many different ways to change the learning rate of SGD. SINGA has implemented
a couple of changing methods. But users may want to implement their own changing method. To
make this part modular, this ticket is going to create a base learning rate generator called
LRGen, which is declared like,
> {code}
> class LRGen {
>   public:
>     virtual float operator() (int step) = 0;
>   protected:
>    LRProto proto_;
> };
> {code}
> Users can then inherit LRGen to implement the their own changing algorithm in the `operator()(int
step)`.
> Users can also add configurations for their generator by extending the base LRProto.



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