Github user bgreeven commented on the pull request:
https://github.com/apache/spark/pull/1290#issuecomment-67281152
So you mean something as follows?
---
abstract class OptimizerInfo {}
case class OptimizerInfoSGD extends OptimizerInfo {
var noIterations: Int = 1000;
var batchFrac: Double = 1.0;
}
case class OptimizerInfoLBFGS extends OptimizerInfo {
var maxIterations: Int = 1000;
var tolerance: Double = 1e-4;
}
---
And in the training function:
---
def train(..., oi: OptimizerInfo): ArtificalNeuralNetworkModel = {
oi match {
case OptimizerInfoLBFGS() =>
// perform LBFGS optimisation
case OptimizerInfoSGD() =>
// perform SGD optimisation
}
}
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