class Program
{
private static void Teach(double[] x, double[,] w, double alpha, double theta, int octant)
{
double[] net = new double[8];
double[] o = new double[8];
double[] target = new double[8];
double[] error = new double[8];
for (int j = 0; j < 8; j++)
{
net[j] = 0;
for (int i = 0; i < 3; i++)
{
net[j] += x[i] * w[i, j];
}
}
for (int j = 0; j < 8; j++)
{
if (net[j] > theta) o[j] = 1;
else o[j] = 0;
if (j == octant - 1) target[j] = 1;
else target[j] = 0;
error[j] = target[j] - o[j];
}
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 8; j++)
{
w[i, j] += alpha * x[i] * error[j];
}
}
}
static int Recognize (double[] x, double[,] w, double theta)
{
int res = -1;
double max = -999;
double[] net = new double[8];
double[] o = new double[8];
for (int j = 0; j < 8; j++)
{
net[j] = 0;
for (int i = 0; i < 3; i++)
{
net[j] += x[i] * w[i, j];
}
}
for (int j = 0; j < 8; j++)
{
if (net[j] > max)
{
max = net[j];
res = j + 1;
}
}
return res;
}
static void Main(string[] args)
{
int n, octant;
double[] x = new double[3];
double[,] w = new double[3, 8]; //веса
for (int i = 0; i < 3; i++)
for (int j = 0; j < 8; j++) w[i, j] = 0.1;
double alpha = 1; //скорость обучения
double theta = 0; //общий порог для всех нейронов
string[] lines = File.ReadAllLines("teach.txt");
foreach (string s in lines)
{
string[] nums = s.Split(' ');
for (int i = 0; i < 3; i++) x[i] = Convert.ToDouble(nums[i]);
octant = Convert.ToInt32(nums[3]);
Teach(x, w, alpha, theta, octant);
}
Console.WriteLine("Обучение завершено");
Console.WriteLine("Введите строку для распознавания");
lines = Console.ReadLine().Split(' ');
for (int i=0; i<3; i++)
{
x[i] = Convert.ToDouble(lines[i]);
}
int r = Recognize(x, w, theta);
Console.WriteLine("Октант: " + r);
}
}
