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From Ted Dunning <>
Subject Re: SVM in Mahout
Date Wed, 20 Jun 2012 13:07:54 GMT

But L1 regularization for hinge loss should give essentially identical results. We currently
support logit loss but this is pluggable.  This is in the sgd framework which currently lacks
a map reduce implementation. 

Speaking of that, does anybody offhand know whether giraph supports an allreduce primitive.
That is the primary thing missing to get parallel sgd. 

Sent from my iPhone

On Jun 20, 2012, at 6:01 AM, Sebastian Schelter <> wrote:

> Hi,
> Did we ever have a M/R implementation of an SVM?
> Best,
> Sebastian

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