public void SquaredErrorRegressionLayer_Backward()
{
var batchSize = 1;
var width = 28;
var height = 28;
var depth = 3;
var numberOfClasses = 10;
var random = new Random(232);
var sut = new SquaredErrorRegressionLayer(numberOfClasses);
sut.Initialize(width, height, depth, batchSize, Initialization.GlorotUniform, random);
var input = Matrix <float> .Build.Random(batchSize, numberOfClasses, random.Next());
sut.Forward(input);
var delta = Matrix <float> .Build.Random(batchSize, numberOfClasses, random.Next());
var actual = sut.Backward(delta);
Trace.WriteLine(string.Join(", ", actual.ToColumnMajorArray()));
var expected = Matrix <float> .Build.Dense(batchSize, numberOfClasses, new float[] { -0.3353941f, 0.0191406f, -0.9314069f, 1.202553f, 1.69809f, -1.126425f, 1.06249f, 0.06901796f, -1.057676f, -0.5987452f });
MatrixAsserts.AreEqual(expected, actual);
}
public void SquaredErrorRegressionLayer_CopyLayerForPredictionModel()
{
var batchSize = 1;
var width = 28;
var height = 28;
var depth = 3;
var numberOfTargets = 10;
var random = new Random(232);
var sut = new SquaredErrorRegressionLayer(numberOfTargets);
sut.Initialize(width, height, depth, batchSize, Initialization.GlorotUniform, random);
var layers = new List <ILayer>();
sut.CopyLayerForPredictionModel(layers);
var actual = (SquaredErrorRegressionLayer)layers.Single();
Assert.AreEqual(sut.Width, actual.Width);
Assert.AreEqual(sut.NumberOfTargets, actual.NumberOfTargets);
}
public void SquaredErrorRegressionLayer_Forward()
{
var batchSize = 1;
var width = 28;
var height = 28;
var depth = 3;
var numberOfClasses = 10;
var random = new Random(232);
var sut = new SquaredErrorRegressionLayer(numberOfClasses);
sut.Initialize(width, height, depth, batchSize, Initialization.GlorotUniform, random);
var input = Matrix <float> .Build.Random(batchSize, numberOfClasses, random.Next());
var actual = sut.Forward(input);
Trace.WriteLine(string.Join(", ", actual.ToColumnMajorArray()));
var expected = Matrix <float> .Build.Dense(batchSize, numberOfClasses, new float[] { 0.1234713f, 0.7669879f, -0.9698473f, 1.814438f, 0.2316814f, -0.05312517f, 0.5537131f, -0.2031853f, 0.01274186f, -0.4482329f });
MatrixAsserts.AreEqual(expected, actual);
}