Github user avulanov commented on the pull request:
https://github.com/apache/spark/pull/1290#issuecomment-67258283
We are discussing with @bgreeven how we can add other optimizers to the
ANN. Right now, we have only `ArtificialNeuralNetwork.run` that uses `LBFGS` by
default, but we can have `.runSGD` or `.runLBFGS` instead. Then, the question
is how to implement the train functions of the Algorithm object. We can use
`trainWithSGD` or `trainSGD` etc.
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