public Synapse(Neuron n1, Neuron n2)
{
_from = n1;
_to = n2;
int sign = (0 == _random.Next() % 2 ? -1 : 1);
Weight = sign * _random.NextDouble() ;
//Weight = sign * _random.NextDouble() / 2.0;
}
private void PaintNeuron(Neuron neuron, Graphics g, int top, int left)
{
_neuralPosition.Add(neuron, new Point(left, top));
Brush brush = _neuralBrush;
if (neuron is TresholdNeuron)
{
brush = _treshHoldNeuralBrush;
}
if (neuron is OutputNeuron)
{
var n = neuron as OutputNeuron;
brush = n.DesiredValue < 1.0 ? _outputNeuralBrush : _outputHighBruh;
g.FillEllipse(brush, left, top, 15, 15);
g.DrawString(n.ToString(), _fontForNeuralValue, brush, (float)left + 10, (float)top + 20);
}
else
{
g.FillEllipse(brush, left, top, 15, 15);
g.DrawString(neuron.ToString(), _fontForNeuralValue, _neuralValueBrush, (float)left + 10, (float)top + 20);
}
// g.DrawString(neuron.Index.ToString(), _font, _neuralBrush, (float)left + 10, (float)top + 32);
}
protected virtual void AddSingleNeuron(Neuron neuron)
{
_neurons.Add(neuron);
}
public void AdjustSynapticWeights(Neuron targetNeuron, double error, double learningFactor)
{
double momentum = 0.0;
foreach (var neuron in _neurons)
{
foreach (var synapse in neuron.Synapses)
{
if (synapse.Neuron2 == targetNeuron)
{
double delta = learningFactor * error * synapse.Neuron1.Value;
synapse.Weight = synapse.Weight + delta + momentum * synapse.DeltaWeight;
}
}
}
}
internal Synapse(Neuron n1, Neuron n2, double weight)
{
_from = n1;
_to = n2;
Weight = weight;
}