[jira] [Created] (SINGA-313) Add L2 norm layer

[wangwei (JIRA)]

wangwei created SINGA-313:
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             Summary: Add L2 norm layer
                 Key: SINGA-313
                 URL: https://issues.apache.org/jira/browse/SINGA-313
             Project: Singa
          Issue Type: New Feature
            Reporter: wangwei


L2 norm layer is useful for triplet ranking loss, which normalizes the inputs 
within the same scale (the L2 norm is 1) and thus avoids numerical problems 
(e.g. exploding).



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