public int GetWinner(NormalizeInput input)
{
var winner = 0;
if (Output == null)
{
Output = new double[OutputNeuronCount];
}
var biggest = Double.MinValue;
for (var i = 0; i < OutputNeuronCount; i++)
{
Output[i] = MatrixMath.DotProduct(input.InputMatrix, OutputWeights.GetRow(i)) * input.NormalizationFactor;
Output[i] = (Output[i] + 1.0) / 2.0;
if (Output[i] > biggest)
{
biggest = Output[i];
winner = i;
}
if (Output[i] < 0)
{
Output[i] = 0;
}
if (Output[i] > 1)
{
Output[i] = 1;
}
}
return(winner);
}
public int GetWinner(NormalizeInput input)
{
var winner = 0;
if (Output == null)
Output = new double[OutputNeuronCount];
var biggest = Double.MinValue;
for (var i = 0; i < OutputNeuronCount; i++)
{
Output[i] = MatrixMath.DotProduct(input.InputMatrix, OutputWeights.GetRow(i)) * input.NormalizationFactor;
Output[i] = (Output[i] + 1.0) / 2.0;
if (Output[i] > biggest)
{
biggest = Output[i];
winner = i;
}
if (Output[i] < 0)
Output[i] = 0;
if (Output[i] > 1)
Output[i] = 1;
}
return winner;
}
protected void ForceWin()
{
int which = 0;
var outputWeights = Network.OutputWeights;
var dist = Double.MaxValue;
for (var tset = 0; tset < TrainingSet.Length; tset++)
{
var best = Network.GetWinner(TrainingSet[tset]);
var output = Network.Output;
if (output[best] < dist)
{
dist = output[best];
which = tset;
}
}
var input = new NormalizeInput(TrainingSet[which], Network.NormalizationType);
Network.GetWinner(input);
var output2 = Network.Output;
dist = Double.MinValue;
var i = _outputNeuronCount;
while (i-- > 0)
{
if (_neuronWinCounts[i] != 0)
{
continue;
}
if (output2[i] > dist)
{
dist = output2[i];
which = i;
}
}
for (var j = 0; j < input.InputMatrix.Columns; j++)
{
outputWeights[which, j] = input.InputMatrix[0, j];
}
NormalizeRowWeight(outputWeights, which);
}
public void EvaluateErrors()
{
_correctionMatrix.Clear();
for (var i = 0; i < _neuronWinCounts.Length; i++)
{
_neuronWinCounts[i] = 0;
}
_globalError = 0.0;
// loop through all training sets to determine correction
for (var tset = 0; tset < TrainingSet.Length; tset++)
{
var input = new NormalizeInput(TrainingSet[tset], Network.NormalizationType);
var best = Network.GetWinner(input);
_neuronWinCounts[best]++;
var bestRow = Network.OutputWeights.GetRow(best);
double diff;
var length = 0.0;
for (var i = 0; i < _inputNeuronCount; i++)
{
diff = TrainingSet[tset][i] * input.NormalizationFactor - bestRow[0, i];
length += diff * diff;
if (LearningMethod == LearningMethod.Subtractive)
{
_correctionMatrix.Add(best, i, diff);
}
else
{
_workMatrix[0, i] = LearningRate * TrainingSet[tset][i] * input.NormalizationFactor + bestRow[0, i];
}
}
diff = input.SyntheticInput - bestRow[0, _inputNeuronCount];
length += diff * diff;
if (LearningMethod == LearningMethod.Subtractive)
{
_correctionMatrix.Add(best, _inputNeuronCount, diff);
}
else
{
_workMatrix[0, _inputNeuronCount] = LearningRate * input.SyntheticInput + bestRow[0, _inputNeuronCount];
}
if (length > _globalError)
{
_globalError = length;
}
if (LearningMethod == LearningMethod.Additive)
{
NormalizeRowWeight(_workMatrix, 0);
for (var i = 0; i <= _inputNeuronCount; i++)
{
_correctionMatrix.Add(best, i, _workMatrix[0, i] - bestRow[0, i]);
}
}
}
_globalError = Math.Sqrt(_globalError);
}
public void EvaluateErrors()
{
correctionMatrix.Clear();
for (var i = 0; i < neuronWinCounts.Length; i++)
neuronWinCounts[i] = 0;
globalError = 0.0;
// loop through all training sets to determine correction
for (var tset = 0; tset < TrainingSet.Length; tset++)
{
var input = new NormalizeInput(TrainingSet[tset], Network.NormalizationType);
var best = Network.GetWinner(input);
neuronWinCounts[best]++;
var bestRow = Network.OutputWeights.GetRow(best);
double diff;
var length = 0.0;
for (var i = 0; i < inputNeuronCount; i++)
{
diff = TrainingSet[tset][i] * input.NormalizationFactor - bestRow[0, i];
length += diff * diff;
if (LearningMethod == LearningMethod.Subtractive)
correctionMatrix.Add(best, i, diff);
else
workMatrix[0, i] = LearningRate * TrainingSet[tset][i] * input.NormalizationFactor + bestRow[0, i];
}
diff = input.SyntheticInput - bestRow[0, inputNeuronCount];
length += diff * diff;
if (LearningMethod == LearningMethod.Subtractive)
correctionMatrix.Add(best, inputNeuronCount, diff);
else
workMatrix[0, inputNeuronCount] = LearningRate * input.SyntheticInput + bestRow[0, inputNeuronCount];
if (length > globalError)
globalError = length;
if (LearningMethod == LearningMethod.Additive)
{
NormalizeRowWeight(workMatrix, 0);
for (var i = 0; i <= inputNeuronCount; i++)
correctionMatrix.Add(best, i, workMatrix[0, i] - bestRow[0, i]);
}
}
globalError = Math.Sqrt(globalError);
}
protected void ForceWin()
{
int which = 0;
var outputWeights = Network.OutputWeights;
var dist = Double.MaxValue;
for (var tset = 0; tset < TrainingSet.Length; tset++)
{
var best = Network.GetWinner(TrainingSet[tset]);
var output = Network.Output;
if (output[best] < dist)
{
dist = output[best];
which = tset;
}
}
var input = new NormalizeInput(TrainingSet[which], Network.NormalizationType);
Network.GetWinner(input);
var output2 = Network.Output;
dist = Double.MinValue;
var i = outputNeuronCount;
while (i-- > 0)
{
if (neuronWinCounts[i] != 0)
continue;
if (output2[i] > dist)
{
dist = output2[i];
which = i;
}
}
for (var j = 0; j < input.InputMatrix.Columns; j++)
outputWeights[which, j] = input.InputMatrix[0, j];
NormalizeRowWeight(outputWeights, which);
}