public void MishTest()
{
var a = new Matrix(2, 2);
a.InRandomize();
var b = a.Duplicate();
a = new Mish().Forward(a);
b.InMap((x) => x * Math.Tanh(Math.Log(1 + Math.Exp(x))));
Assert.IsTrue(Math.Abs(a.FrobeniusNorm() - b.FrobeniusNorm()) < 0.1,
new Mish().Type().ToString() + " Activation.");
}
public void MishPrimeTest()
{
var a = new Matrix(2, 2);
a.InRandomize();
var b = a.Duplicate();
a = new Mish().Backward(a);
b.InMap((x) =>
Math.Exp(x) * (4 * (x + 1) + 4 * Math.Exp(2 * x) + Math.Exp(3 * x) + Math.Exp(x) * (4 * x + 6)) /
Math.Pow(2 * Math.Exp(x) + Math.Exp(2 * x) + 2, 2));
Assert.IsTrue(Math.Abs(a.FrobeniusNorm() - b.FrobeniusNorm()) < 0.1,
new Mish().Type().ToString() + " Derivative.");
}
public Layer(int nCount, int index, ActivationSettings activationSettings)
{
NCount = nCount;
Index = index;
ActivationType = activationSettings.Type();
// Activation Setup
switch (activationSettings.Type())
{
case EActivationType.Invalid:
Activation = null;
throw new ArgumentException("Activation Type Invalid.");
case EActivationType.Arctan:
Activation = new Arctan();
break;
case EActivationType.BinaryStep:
Activation = new BinaryStep();
break;
case EActivationType.BipolarSigmoid:
Activation = new BipolarSigmoid();
break;
case EActivationType.ELU:
Activation = new ELU((ELUSettings)activationSettings);
break;
case EActivationType.HardSigmoid:
Activation = new HardSigmoid();
break;
case EActivationType.HardTanh:
Activation = new HardTanh();
break;
case EActivationType.Identity:
Activation = new Identity();
break;
case EActivationType.Logit:
Activation = new Logit();
break;
case EActivationType.LReLU:
Activation = new LReLU((LReLUSettings)activationSettings);
break;
case EActivationType.Mish:
Activation = new Mish();
break;
case EActivationType.ReLU:
Activation = new ReLU();
break;
case EActivationType.SeLU:
Activation = new SeLU();
break;
case EActivationType.Sigmoid:
Activation = new Sigmoid();
break;
case EActivationType.Softmax:
Activation = new Softmax();
break;
case EActivationType.Softplus:
Activation = new Softplus();
break;
case EActivationType.Softsign:
Activation = new Softsign();
break;
case EActivationType.Tanh:
Activation = new Tanh();
break;
default:
throw new ArgumentException("Activation Type Invalid.");
}
}
