Implement LatentFactorLogLinear models
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                 Key: MAHOUT-525
                 URL: https://issues.apache.org/jira/browse/MAHOUT-525
             Project: Mahout
          Issue Type: New Feature
            Reporter: Ted Dunning


The approach is based on the paper http://arxiv.org/abs/1006.2156

For integration into Mahout, the idea would be to build an OnlineLearner that 
accept feature vectors where the first two elements are assumed to be the row
and column id's.  The learning will proceed by stochastic gradient descent.



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