public void TestCalculateWithIdentityActivationFunction()
{
var neuron = new Neuron(Neuron.IdentityActivation, 2, .5, -1);
var output = neuron.Calculate(4, -7, 19.5);
var expectedOutput = 2 * 4 + .5 * -7 + -1 * 19.5;
Assert.AreEqual(expectedOutput, output);
}
public void TestCalculateWithDefaultActivationFunction()
{
var neuron = new Neuron(2, .5, -1);
var output = neuron.Calculate(4, -7, 19.5);
var expectedOutput = Neuron.DefaultActivation(2 * 4 + .5 * -7 + -1 * 19.5);
Assert.AreEqual(expectedOutput, output);
}
public void TestCalculateWithCustomActivationFunction()
{
double Activation(double x) => x / 2;
var neuron = new Neuron(Activation, 2, .5, -1);
var output = neuron.Calculate(4, -7, 19.5);
var expectedOutput = Activation(2 * 4 + .5 * -7 + -1 * 19.5);
Assert.AreEqual(expectedOutput, output);
}
public static void Test()
{
string logs = "";
logs += "========TEST 1========\n\n";
Neuron test1 = new Neuron(Neuron.NeuronType.HIDDEN, Neuron.ActivationType.SIGMOID, false);
test1.AddInputConnection();
test1.AddInputConnection();
test1.AddInputConnection();
test1.FeedInput(1f);
logs += "Neuron reports that isReady()=" + test1.IsReady() + ", and is expected to report that isReady()=false\n";
test1.FeedInput(1f);
logs += "Neuron reports that isReady()=" + test1.IsReady() + ", and is expected to report that isReady()=false\n";
test1.FeedInput(1f);
logs += "Neuron reports that isReady()=" + test1.IsReady() + ", and is expected to report that isReady()=true\n";
logs += "Sum=3\n";
logs += "Calculating...\n";
float output = test1.Calculate();
logs += "Output: " + output + "\n\n";
logs += "========TEST 2========\n\n";
Neuron test2 = new Neuron(Neuron.NeuronType.HIDDEN, Neuron.ActivationType.SIGMOID, false);
test2.AddInputConnection();
test2.AddInputConnection();
test2.AddInputConnection();
test2.FeedInput(0f);
test2.FeedInput(0.5f);
test2.FeedInput(-0.5f);
logs += "Sum=0\n";
logs += "Calculating...\n";
output = test2.Calculate();
logs += "Output: " + output + "\n\n";
logs += "========TEST 3========\n\n";
Neuron test3 = new Neuron(Neuron.NeuronType.HIDDEN, Neuron.ActivationType.SIGMOID, false);
test3.AddInputConnection();
test3.AddInputConnection();
test3.AddInputConnection();
test3.FeedInput(-2f);
test3.FeedInput(-2f);
test3.FeedInput(-2f);
logs += "Sum=-6\n";
logs += "Calculating...\n";
output = test3.Calculate();
logs += "Output: " + output + "\n\n";
logs += "========TEST 4========\n\n";
Neuron test4 = new Neuron(Neuron.NeuronType.HIDDEN, Neuron.ActivationType.SIGMOID, false);
test4.AddInputConnection();
test4.AddInputConnection();
test4.AddInputConnection();
test4.FeedInput(-20f);
test4.FeedInput(-20f);
test4.FeedInput(-20f);
logs += "Sum=-60\n";
logs += "Calculating...\n";
output = test4.Calculate();
logs += "Output: " + output + "\n\n";
Debug.Log(logs);
}
