private void TreningEpoki()
{
nrEpok++;
Shuffle(trainings);
//Trening jednej epoki
for (int i = 0; i < trainings.Count; i++)
{
OneDraw data = trainings[i];
double[] inputs = data.BrightPixels;
//normalizacja danych tu moze byc
Label name = trainings[i].Lbl;
double[] targets = new double[ileKategorii];
for (int k = 0; k < ileKategorii; k++)
{
targets[k] = 0;
}
targets[(int)name] = 1;
nn.Train(inputs, targets);
double wartProcent = ((double)(i + 1) / (double)trainings.Count()) * 100;
this.InvokeIfRequired((value) => progressBar.Value = (int)wartProcent, 10);
}
this.InvokeIfRequired((value) => listBox1.Items.Add("Zakonczono nauczanie epoki: " + nrEpok), 10);
th.Abort();
}
private void TestingAll()
{
Shuffle(testings);
int correct = 0;
//Trening jednej epoki
for (int i = 0; i < testings.Count; i++)
{
OneDraw data = testings[i];
double[] inputs = data.BrightPixels;
Label name = testings[i].Lbl;
double[] guess = nn.Guess(inputs);
double maxValue = guess.Max();
int pom = guess.ToList().IndexOf(maxValue);
Label guessLbl = 0;
guessLbl += pom;
if ((int)guessLbl == (int)data.Lbl)
{
correct++;
}
}
double percent = ((double)correct / (double)testings.Count()) * 100;
listBox1.Items.Add("Dokladnosc nauki: " + percent.ToString() + "%");
}
private void Shuffle(List <OneDraw> list)
{
Random rng = new Random();
int n = list.Count;
while (n > 1)
{
n--;
int k = rng.Next(n + 1);
OneDraw value = list[k];
list[k] = list[n];
list[n] = value;
}
}
private void btnZgadnij_Click(object sender, EventArgs e)
{
Bitmap bmp = (Bitmap)PictureBox.Image;
Bitmap resized = new Bitmap(bmp, new Size(bmp.Width / 10, bmp.Height / 10));
OneDraw rysunek = new OneDraw(resized);
double[] rysunekInputs = rysunek.BrightPixels;
double[] guess = nn.Guess(rysunekInputs);
double maxValue = guess.Max();
int pom = guess.ToList().IndexOf(maxValue);
//Label guessLbl = Label.airplanes;
Label guessLbl = 0;
guessLbl += pom;
listBox1.Items.Add("Myślę, że jest to: " + guessLbl);
}
