private static Symbol MeanAbsoluteLogError(Symbol preds, Symbol labels)
{
Symbol first_log = OperatorSupply.Log(OperatorSupply.Clip(preds, float.Epsilon, 0) + 1);
Symbol second_log = OperatorSupply.Log(OperatorSupply.Clip(labels, float.Epsilon, 0) + 1);
Symbol loss = OperatorSupply.Mean(OperatorSupply.Square(first_log - second_log));
return(new Operator("MakeLoss").SetInput("data", loss).CreateSymbol("MeanAbsoluteLogError"));
}
private static Symbol SquaredHinge(Symbol preds, Symbol labels)
{
Symbol loss = OperatorSupply.Mean(OperatorSupply.Square(OperatorSupply.MaximumScalar(1 - (labels * preds), 0)));
return(new Operator("MakeLoss").SetInput("data", loss).CreateSymbol("SquaredHinge"));
}
