internal void AddAxon(int angle, Neuron n)
{
Axon axon = new Axon(angle, this, n);
Axons.Add(axon);
n.Axons.Add(axon);
}
public double Gradient(double?target = null)
{
if (target == null)
{
return(gradient = Axons.Sum(a => a.targetNeuron.gradient * a.Weight) * Activate.sigmoidDerivative(value));
}
return(gradient = (target.Value - value) * Activate.sigmoidDerivative(value));
}
public void RemoveAxon(Neuron destination)
{
if (destination == null || IsRoot() || destination.IsRoot())
{
return;
}
destination.DendriteStrength.Remove(this);
destination.Dendrites.Remove(this);
Axons.Remove(destination);
}
public void CreateAxon(Neuron destination, double strength)
{
if (destination == null || IsRoot() || destination.IsRoot())
{
return;
}
if (destination.DendriteStrength.ContainsKey(this))
{
destination.DendriteStrength[this] = strength;
}
else
{
destination.DendriteStrength.Add(this, strength);
destination.Dendrites.Add(this);
Axons.Add(destination);
}
}
