/// <summary>
/// Calculates weights for the hopfield net to learn the specified training
/// set
/// </summary>
/// <param name="trainingSet">
/// training set to learn </param>
public override void learn(DataSet trainingSet)
{
int M = trainingSet.size();
int N = neuralNetwork.getLayerAt(0).NeuronsCount;
Layer hopfieldLayer = neuralNetwork.getLayerAt(0);
for (int i = 0; i < N; i++)
{
for (int j = 0; j < N; j++)
{
if (j == i)
{
continue;
}
Neuron ni = hopfieldLayer.getNeuronAt(i);
Neuron nj = hopfieldLayer.getNeuronAt(j);
Connection cij = nj.getConnectionFrom(ni);
Connection cji = ni.getConnectionFrom(nj);
double w = 0;
for (int k = 0; k < M; k++)
{
DataSetRow trainingSetRow = trainingSet.getRowAt(k);
double pki = trainingSetRow.Input[i];
double pkj = trainingSetRow.Input[j];
w = w + pki * pkj;
} // k
cij.Weight.Value = w;
cji.Weight.Value = w;
} // j
} // i
}
private void createPromoLabels(Layer layer)
{
layer.getNeuronAt(0).Label = "Sales";
layer.getNeuronAt(1).Label = "New";
layer.getNeuronAt(2).Label = "Bestseller";
}
private void createPriceLabels(Layer layer)
{
layer.getNeuronAt(0).Label = "Low Price";
layer.getNeuronAt(1).Label = "Mid Price";
layer.getNeuronAt(2).Label = "High Price";
}
private void createBrandLabels(Layer layer)
{
layer.getNeuronAt(0).Label = "Samsung";
layer.getNeuronAt(1).Label = "LG";
layer.getNeuronAt(2).Label = "Sony";
}
private void createTypeLabels(Layer layer)
{
layer.getNeuronAt(0).Label = "LCD TV";
layer.getNeuronAt(1).Label = "Digital Camera";
layer.getNeuronAt(2).Label = "Mobile Phone";
}
private void createProductLabels(Layer layer)
{
layer.getNeuronAt(0).Label = "Samsung LCD TV LE-32A330";
layer.getNeuronAt(1).Label = "Samsung LCD TV LE-32A558";
layer.getNeuronAt(2).Label = "LG LCD TV 32LG2000";
layer.getNeuronAt(3).Label = "LG LCD TV 32LG5010";
layer.getNeuronAt(4).Label = "Sony LCD TV KDL-32L4000K";
layer.getNeuronAt(5).Label = "Sony LCD TV KDL-32S4000";
layer.getNeuronAt(6).Label = "Sony LCD TV KDL-32W4000K";
layer.getNeuronAt(7).Label = "Samsung Digital Camera S760";
layer.getNeuronAt(8).Label = "Samsung Digital Camera L100";
layer.getNeuronAt(9).Label = "Samsung Digital Camera S850";
layer.getNeuronAt(10).Label = "LG Digital Camera DMCLS80E";
layer.getNeuronAt(11).Label = "LG Digital Camera DMCLZ8E";
layer.getNeuronAt(12).Label = "Sony Digital Camera DSCW120S";
layer.getNeuronAt(13).Label = "Sony Digital Camera DSCW130S";
layer.getNeuronAt(14).Label = "Samsung Mobile Phone E251";
layer.getNeuronAt(15).Label = "Samsung Mobile Phone U600";
layer.getNeuronAt(16).Label = "Sony Mobile Phone KP100";
layer.getNeuronAt(17).Label = "Sony Mobile Phone KE850";
layer.getNeuronAt(18).Label = "LG Mobile Phone K330";
layer.getNeuronAt(19).Label = "LG Mobile Phone K660";
}