public void ContainsCorrectLastInputsVectorAfterSecondPropagationWithWeightsChanged()
{
const int inputs = 2;
var hidden = new[] { 2, 2 };
const int outputs = 2;
Func<double, double> activation = x => x;
var net = new SimpleFuzzyNet(inputs, hidden, GenerateNumbers, activation, outputs);
var input = new List<IFuzzyNumber>
{
new RealNumber(1.0),
new RealNumber(2.0),
};
var lastInputs = net.GetLastInputsForWeights();
net.Propagate(input);
ChangeFirstWeightsOfNeuronsToOne(net.Layers);
net.Propagate(input);
var expectedLastInputs = new IFuzzyNumber[]
{
//output layer
//first neuron
new RealNumber(-5.0),
new RealNumber(-5.0),
//second neuron
new RealNumber(-5.0),
new RealNumber(-5.0),
//hidden 1
new RealNumber(1.0),
new RealNumber(2.0),
new RealNumber(1.0),
new RealNumber(2.0),
//hidden 2
new RealNumber(-2.0),
new RealNumber(3.0),
new RealNumber(-2.0),
new RealNumber(3.0),
};
int i = 0;
foreach (var lastInput in lastInputs)
{
Assert.That(lastInput.Signal.GetMod().X, Is.EqualTo(expectedLastInputs[i].GetMod().X));
i++;
}
}
public void CreateNulledLastInputsVectorAtStart()
{
const int inputs = 2;
var hidden = new[] { 2, 2 };
const int outputs = 2;
Func<double, double> activation = x => x;
var net = new SimpleFuzzyNet(inputs, hidden, () => new RealNumber(0.0), activation, outputs);
var lastInputs = net.GetLastInputsForWeights();
foreach (var input in lastInputs)
{
Assert.IsNull(input.Signal);
}
}
public void CreateCorrectLastInputsVectorAfterFirstPropagation()
{
const int inputs = 2;
var hidden = new[] { 2, 2 };
const int outputs = 2;
Func<double, double> activation = x => x;
var net = new SimpleFuzzyNet(inputs, hidden, GenerateNumbers, activation, outputs);
var input = new List<IFuzzyNumber>
{
new RealNumber(1.0),
new RealNumber(2.0),
};
var lastInputsLinks = net.GetLastInputsForWeights();
net.Propagate(input);
var lastInputs = lastInputsLinks.ToSignalsVector();
var expectedLastInputs = new IFuzzyNumber[]
{
//output layer
//first neuron
new RealNumber(-2.0),
new RealNumber(-8.0),
//second neuron
new RealNumber(-2.0),
new RealNumber(-8.0),
//hidden 1
new RealNumber(1.0),
new RealNumber(2.0),
new RealNumber(1.0),
new RealNumber(2.0),
//hidden 2
new RealNumber(-2.0),
new RealNumber(4.0),
new RealNumber(-2.0),
new RealNumber(4.0),
};
for (int i = 0; i < expectedLastInputs.Length; i++)
{
Assert.That(lastInputs[i].GetMod().X, Is.EqualTo(expectedLastInputs[i].GetMod().X));
}
}
