public void CalculateWeights(BoltzmannMachine logic)
{
for (int sourceTour = 0; sourceTour < NUM_CITIES; sourceTour++)
{
for (int sourceCity = 0; sourceCity < NUM_CITIES; sourceCity++)
{
int sourceIndex = sourceTour * NUM_CITIES + sourceCity;
for (int targetTour = 0; targetTour < NUM_CITIES; targetTour++)
{
for (int targetCity = 0; targetCity < NUM_CITIES; targetCity++)
{
int targetIndex = targetTour * NUM_CITIES + targetCity;
double weight = 0;
if (sourceIndex != targetIndex)
{
int predTargetTour = (targetTour == 0 ? NUM_CITIES - 1 : targetTour - 1);
int succTargetTour = (targetTour == NUM_CITIES - 1 ? 0 : targetTour + 1);
if ((sourceTour == targetTour) || (sourceCity == targetCity))
{
weight = -gamma;
}
else if ((sourceTour == predTargetTour) || (sourceTour == succTargetTour))
{
weight = -distance[sourceCity][targetCity];
}
}
logic.SetWeight(sourceIndex, targetIndex, weight);
}
}
logic.Threshold[sourceIndex] = -gamma / 2;
}
}
}
public void run()
{
var boltz = new BoltzmannMachine(NEURON_COUNT);
CreateCities();
CalculateWeights(boltz);
boltz.Temperature = 100;
do
{
boltz.EstablishEquilibrium();
Console.WriteLine(boltz.Temperature + " : " + DisplayTour(boltz.CurrentState));
boltz.DecreaseTemperature(0.99);
} while (!IsValidTour(boltz.CurrentState));
Console.WriteLine("Final Length: " + LengthOfTour(boltz.CurrentState));
}
