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This commit is contained in:
Ahmed Zamil 2023-03-15 20:34:48 +03:00
parent 989d20812e
commit b9eb9c6adf
1 changed files with 33 additions and 33 deletions
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66
Esiur.Analysis/Neural/NeuralNetwork.cs
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@ -50,7 +50,7 @@ namespace Esiur.Analysis.Neural
for(var i = 0; i < target.Length; i++)
{
var z = -(target[i] - output[i]) *
//var z = -(target[i] - output[i]) *
}
//for (int i = 0; i < output.Length; i++)
// totalError += (float)Math.Pow(output[i] - expected[i], 2);//calculated cost of network
@ -59,43 +59,43 @@ namespace Esiur.Analysis.Neural
var gamma = neuralLayers.Select(x => x.Neurons.Select(n => n.Value).ToArray()).ToArray();
//var gamma = neuralLayers.Select(x => x.Neurons.Select(n => n.Value).ToArray()).ToArray();
int layer = layers.Length - 2;
//int layer = layers.Length - 2;
for (int i = 0; i < output.Length; i++) gamma[layers.Length - 1][i] = (output[i] - expected[i]) * activateDer(output[i], layer);//Gamma calculation
for (int i = 0; i < layers[layers.Length - 1]; i++)//calculates the w' and b' for the last layer in the network
{
biases[layers.Length - 2][i] -= gamma[layers.Length - 1][i] * learningRate;
for (int j = 0; j < layers[layers.Length - 2]; j++)
{
//for (int i = 0; i < output.Length; i++) gamma[layers.Length - 1][i] = (output[i] - expected[i]) * activateDer(output[i], layer);//Gamma calculation
//for (int i = 0; i < layers[layers.Length - 1]; i++)//calculates the w' and b' for the last layer in the network
//{
// biases[layers.Length - 2][i] -= gamma[layers.Length - 1][i] * learningRate;
// for (int j = 0; j < layers[layers.Length - 2]; j++)
// {
weights[layers.Length - 2][i][j] -= gamma[layers.Length - 1][i] * neurons[layers.Length - 2][j] * learningRate;//*learning
}
}
// weights[layers.Length - 2][i][j] -= gamma[layers.Length - 1][i] * neurons[layers.Length - 2][j] * learningRate;//*learning
// }
//}
for (int i = layers.Length - 2; i > 0; i--)//runs on all hidden layers
{
layer = i - 1;
for (int j = 0; j < layers[i]; j++)//outputs
{
gamma[i][j] = 0;
for (int k = 0; k < gamma[i + 1].Length; k++)
{
gamma[i][j] += gamma[i + 1][k] * weights[i][k][j];
}
gamma[i][j] *= activateDer(neurons[i][j], layer);//calculate gamma
}
for (int j = 0; j < layers[i]; j++)//itterate over outputs of layer
{
biases[i - 1][j] -= gamma[i][j] * learningRate;//modify biases of network
for (int k = 0; k < layers[i - 1]; k++)//itterate over inputs to layer
{
weights[i - 1][j][k] -= gamma[i][j] * neurons[i - 1][k] * learningRate;//modify weights of network
}
}
}
//for (int i = layers.Length - 2; i > 0; i--)//runs on all hidden layers
//{
// layer = i - 1;
// for (int j = 0; j < layers[i]; j++)//outputs
// {
// gamma[i][j] = 0;
// for (int k = 0; k < gamma[i + 1].Length; k++)
// {
// gamma[i][j] += gamma[i + 1][k] * weights[i][k][j];
// }
// gamma[i][j] *= activateDer(neurons[i][j], layer);//calculate gamma
// }
// for (int j = 0; j < layers[i]; j++)//itterate over outputs of layer
// {
// biases[i - 1][j] -= gamma[i][j] * learningRate;//modify biases of network
// for (int k = 0; k < layers[i - 1]; k++)//itterate over inputs to layer
// {
// weights[i - 1][j][k] -= gamma[i][j] * neurons[i - 1][k] * learningRate;//modify weights of network
// }
// }
//}
}
}
}