public virtual string classify(double[] pattern)
{
//JAVA TO C# CONVERTER TODO TASK: Java wildcard generics are not converted to .NET:
//ORIGINAL LINE: org.neuroph.core.NeuralNetwork<?> nnet = getParentNetwork();
NeuralNetwork nnet = ParentNetwork;
nnet.Input = pattern;
nnet.calculate();
Neuron maxNeuron = null;
double maxOutput = double.Epsilon;
foreach (Neuron neuron in nnet.OutputNeurons)
{
if (neuron.Output > maxOutput)
{
maxOutput = neuron.Output;
maxNeuron = neuron;
}
}
if (maxOutput > threshold)
{
return(maxNeuron.Label);
}
else
{
return(null);
}
}
/// <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 createPriceConnections()
{
int[] low = new int[] { 0, 2, 4, 7, 10, 16, 18 };
int[] mid = new int[] { 3, 5, 8, 11, 12, 14, 19 };
int[] high = new int[] { 1, 6, 9, 13, 15, 17 };
// input connections for the first price class
for (int i = 0; i < 7; i++)
{
Neuron fromNeuron = this.getLayerAt(inputLayerIdx).getNeuronAt(low[i]);
Neuron toNeuron = this.getLayerAt(priceLayerIdx).getNeuronAt(0);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// input connections for the second price class
for (int i = 0; i < 7; i++)
{
Neuron fromNeuron = this.getLayerAt(inputLayerIdx).getNeuronAt(mid[i]);
Neuron toNeuron = this.getLayerAt(priceLayerIdx).getNeuronAt(1);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// input connections for the third price class
for (int i = 0; i < 6; i++)
{
Neuron fromNeuron = this.getLayerAt(inputLayerIdx).getNeuronAt(high[i]);
Neuron toNeuron = this.getLayerAt(priceLayerIdx).getNeuronAt(2);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// output connections for the first price class
for (int i = 0; i < 7; i++)
{
Neuron fromNeuron = this.getLayerAt(priceLayerIdx).getNeuronAt(0);
Neuron toNeuron = this.getLayerAt(outputLayerIdx).getNeuronAt(low[i]);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// output connections for the second price class
for (int i = 0; i < 7; i++)
{
Neuron fromNeuron = this.getLayerAt(priceLayerIdx).getNeuronAt(1);
Neuron toNeuron = this.getLayerAt(outputLayerIdx).getNeuronAt(mid[i]);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// output connections for the third price class
for (int i = 0; i < 6; i++)
{
Neuron fromNeuron = this.getLayerAt(priceLayerIdx).getNeuronAt(2);
Neuron toNeuron = this.getLayerAt(outputLayerIdx).getNeuronAt(high[i]);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
}
private void createBrandConnections()
{
int[] samsung = new int[] { 0, 1, 7, 8, 9, 14, 15 };
int[] lg = new int[] { 2, 3, 10, 11, 16, 17 };
int[] sony = new int[] { 4, 5, 6, 12, 13, 18, 19 };
// create samsung input sonnections
for (int i = 0; i < 7; i++)
{
Neuron fromNeuron = this.getLayerAt(inputLayerIdx).getNeuronAt(samsung[i]);
Neuron toNeuron = this.getLayerAt(brandLayerIdx).getNeuronAt(0);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// create input connections for LG
for (int i = 0; i < 6; i++)
{
Neuron fromNeuron = this.getLayerAt(inputLayerIdx).getNeuronAt(lg[i]);
Neuron toNeuron = this.getLayerAt(brandLayerIdx).getNeuronAt(1);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// create input connections for sony
for (int i = 0; i < 7; i++)
{
Neuron fromNeuron = this.getLayerAt(inputLayerIdx).getNeuronAt(sony[i]);
Neuron toNeuron = this.getLayerAt(brandLayerIdx).getNeuronAt(2);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// output connections for the first brand
for (int i = 0; i < 7; i++)
{
Neuron fromNeuron = this.getLayerAt(brandLayerIdx).getNeuronAt(0);
Neuron toNeuron = this.getLayerAt(outputLayerIdx).getNeuronAt(samsung[i]);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// output connections for the second brand
for (int i = 0; i < 6; i++)
{
Neuron fromNeuron = this.getLayerAt(brandLayerIdx).getNeuronAt(1);
Neuron toNeuron = this.getLayerAt(outputLayerIdx).getNeuronAt(lg[i]);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// output connections for the third brand
for (int i = 0; i < 7; i++)
{
Neuron fromNeuron = this.getLayerAt(brandLayerIdx).getNeuronAt(2);
Neuron toNeuron = this.getLayerAt(outputLayerIdx).getNeuronAt(sony[i]);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
}
private void createPromoConnections()
{
int[] sales = new int[] { 0, 10, 19 };
int[] new_products = new int[] { 6, 9 };
int[] bestsellers = new int[] { 3, 12, 14 };
// input connections for the first promo type
for (int i = 0; i < sales.Length; i++)
{
Neuron fromNeuron = this.getLayerAt(inputLayerIdx).getNeuronAt(sales[i]);
Neuron toNeuron = this.getLayerAt(promoLayerIdx).getNeuronAt(0);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// input connections for the second promo type
for (int i = 0; i < new_products.Length; i++)
{
Neuron fromNeuron = this.getLayerAt(inputLayerIdx).getNeuronAt(new_products[i]);
Neuron toNeuron = this.getLayerAt(promoLayerIdx).getNeuronAt(1);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// input connections for the third promo type
for (int i = 0; i < bestsellers.Length; i++)
{
Neuron fromNeuron = this.getLayerAt(inputLayerIdx).getNeuronAt(bestsellers[i]);
Neuron toNeuron = this.getLayerAt(promoLayerIdx).getNeuronAt(2);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// output connections for the first promo type
for (int i = 0; i < sales.Length; i++)
{
Neuron fromNeuron = this.getLayerAt(promoLayerIdx).getNeuronAt(0);
Neuron toNeuron = this.getLayerAt(outputLayerIdx).getNeuronAt(sales[i]);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// output connections for the second promo type
for (int i = 0; i < new_products.Length; i++)
{
Neuron fromNeuron = this.getLayerAt(promoLayerIdx).getNeuronAt(1);
Neuron toNeuron = this.getLayerAt(outputLayerIdx).getNeuronAt(new_products[i]);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// output connections for the third promo type
for (int i = 0; i < bestsellers.Length; i++)
{
Neuron fromNeuron = this.getLayerAt(promoLayerIdx).getNeuronAt(2);
Neuron toNeuron = this.getLayerAt(outputLayerIdx).getNeuronAt(bestsellers[i]);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
}
private void createTypeConnections()
{
// input connections for the first product type
for (int i = 0; i < 7; i++)
{
Neuron fromNeuron = this.getLayerAt(inputLayerIdx).getNeuronAt(i);
Neuron toNeuron = this.getLayerAt(typeLayerIdx).getNeuronAt(0);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// input connections for the second product type
for (int i = 7; i < 14; i++)
{
Neuron fromNeuron = this.getLayerAt(inputLayerIdx).getNeuronAt(i);
Neuron toNeuron = this.getLayerAt(typeLayerIdx).getNeuronAt(1);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// input connections for the third product type
for (int i = 14; i < 20; i++)
{
Neuron fromNeuron = this.getLayerAt(inputLayerIdx).getNeuronAt(i);
Neuron toNeuron = this.getLayerAt(typeLayerIdx).getNeuronAt(2);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// output connections for the first product type
for (int i = 0; i < 7; i++)
{
Neuron fromNeuron = this.getLayerAt(typeLayerIdx).getNeuronAt(0);
Neuron toNeuron = this.getLayerAt(outputLayerIdx).getNeuronAt(i);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// output connections for the second product type
for (int i = 7; i < 14; i++)
{
Neuron fromNeuron = this.getLayerAt(typeLayerIdx).getNeuronAt(1);
Neuron toNeuron = this.getLayerAt(outputLayerIdx).getNeuronAt(i);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
// output connections for the third product type
for (int i = 14; i < 20; i++)
{
Neuron fromNeuron = this.getLayerAt(typeLayerIdx).getNeuronAt(2);
Neuron toNeuron = this.getLayerAt(outputLayerIdx).getNeuronAt(i);
this.createConnection(fromNeuron, toNeuron, 0.1);
}
}
/// <summary>
/// Returns the index position in layer for the specified neuron
/// </summary>
/// <param name="neuron"> neuron object </param>
/// <returns> index position of specified neuron </returns>
public virtual int IndexOf(Neuron neuron)
{
return(neurons.IndexOf(neuron));
}
/// <summary>
/// Removes neuron from layer
/// </summary>
/// <param name="neuron"> neuron to remove </param>
public void removeNeuron(Neuron neuron)
{
int index = IndexOf(neuron);
removeNeuronAt(index);
}
/// <summary>
/// Creates a new connection to specified neuron with specified weight value
/// </summary>
/// <param name="fromNeuron"> neuron to connect from </param>
/// <param name="toNeuron"> neuron to connect to </param>
/// <param name="weightVal">
/// weight value for this connection </param>
public Connection(Neuron fromNeuron, Neuron toNeuron, double weightVal) : this(fromNeuron, toNeuron, new Weight(weightVal))
{
}
