public override NDArray Call(NDArray w)
{
var norms = NDArray.Sqrt(NDArray.Square(w));
var desired = NDArray.Clip(norms, 0, MaxValue);
w *= (desired / (norms + float.Epsilon));
return(w);
}
public override NDArray Call(NDArray w)
{
var norms = NDArray.Sqrt(NDArray.Sum(NDArray.Square(w), new Shape(Axis), true));
var desired = (NDArray.Clip(norms, MinValue, MaxValue) * Rate) + (norms * (1 - Rate));
w *= desired / (norms + float.Epsilon);
return(w);
}
public override void Update(NDArray labels, NDArray preds)
{
CheckLabelShapes(labels, preds, true);
preds = preds.Clip(0, 1);
var label = labels.Ravel();
preds = preds.Ravel() > Threshold;
var num_correct = nd.Equal(preds, label).AsType(DType.Float32).Sum();
sum_metric += num_correct;
global_sum_metric += num_correct;
num_inst += preds.Shape.Size;
global_num_inst += preds.Shape.Size;
}