public async Task PerceptronClampsInputs()
{
await _perceptron.FireAsync(_activations);
var inputs = _network.GetInputs();
inputs.ElementAt(0).ActivationValue.Should().Be(_activations[0], because: "Input unit value is fed forward without modification.");
inputs.ElementAt(1).ActivationValue.Should().Be(_activations[1], because: "Input unit value is fed forward without modification.");
}
public void SetUp()
{
_network = new NetworkBuilder().Setup();
_perceptron = new Perceptron(_network.GetInputs());
_activations = new List <double> {
1d, 2d
};
}
public void ErrorBackPropagationStepsThrowsExceptionIfLearningRateIsZero()
{
var inputs = _network.GetInputs();
var weightSetterMock = new Mock <IWeightSetter>();
var perceptronMock = new Mock <IPerceptronUnderTraining>();
var exception = Assert.Throws <ArgumentException>(() => new ErrorBackPropagationStepsOnline(weightSetterMock.Object, perceptronMock.Object, 0d, 1d));
exception.Message.Should().Be(ErrorBackPropagationStepsBase.LearningRateShouldNotBeZero);
}
public void LayeredUnitsSeparatesUnitsIntoLayersCorrectly()
{
var inputs = _network.GetInputs();
var layeredUnitCollection = new LayeredUnitCollection <IUnit, IConnection, IUnitActivation <IUnit> >(inputs).GetLayeredUnits();
layeredUnitCollection.ElementAt(0).Should().ContainInOrder(new List <object>
{
_network.Input1,
_network.Input2,
_network.InputUnorthodox,
});
layeredUnitCollection.ElementAt(1).Should().ContainInOrder(new List <object>
{
_network.Hidden1,
_network.Hidden2,
});
layeredUnitCollection.ElementAt(2).Should().ContainInOrder(new List <object>
{
_network.Output1,
_network.Output2,
});
}
public void LayeredConnectionsSeparatesUnitsIntoLayersCorrectly()
{
var inputs = _network.GetInputs();
_network.AddBias();
var layeredUnitCollection = new LayeredConnectionCollection <IUnit, IConnection, IUnitActivation <IUnit> >(inputs);
var layeredConnections = layeredUnitCollection.GetLayeredConnection().ToList();
layeredConnections.Should().HaveCount(2);
var inputToHiddenConnections = layeredConnections.ElementAt(0);
var hiddenToOutputConnections = layeredConnections.ElementAt(1);
inputToHiddenConnections.Should().Contain(new List <object>
{
_network.ConnectionInput1Hidden1,
_network.ConnectionInput1Hidden2,
_network.ConnectionInput2Hidden1,
_network.ConnectionInput2Hidden2,
_network.InputUnorthodoxToHidden1,
_network.HiddenBiasToHidden1,
_network.HiddenBiasToHidden2,
}).And.HaveCount(7);
hiddenToOutputConnections.Should().Contain(new List <object>
{
_network.ConnectionHidden1Output1,
_network.ConnectionHidden1Output2,
_network.ConnectionHidden2Output1,
_network.ConnectionHidden2Output2,
_network.InputUnorthodoxToOutput1,
_network.OutputBiasToOutput1,
_network.OutputBiasToOutput2,
}).And.HaveCount(7);
}