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https://issues.apache.org/jira/browse/MAHOUT-703?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ted Dunning updated MAHOUT-703:
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Fix Version/s: 0.6
> Implement Gradient machine
> --------------------------
>
> Key: MAHOUT-703
> URL: https://issues.apache.org/jira/browse/MAHOUT-703
> Project: Mahout
> Issue Type: New Feature
> Components: Classification
> Affects Versions: 0.6
> Reporter: Hector Yee
> Priority: Minor
> Labels: features
> Fix For: 0.6
>
> Original Estimate: 72h
> Remaining Estimate: 72h
>
> Implement a gradient machine (aka 'neural network) that can be used for
> classification or auto-encoding.
> It will just have an input layer, identity, sigmoid or tanh hidden layer and
> an output layer.
> Training done by stochastic gradient descent (possibly mini-batch later).
> Sparsity will be optionally enforced by tweaking the bias in the hidden unit.
> For now it will go in classifier/sgd and the auto-encoder will wrap it in the
> filter unit later on.
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