public void ForwardBackwardで形が変わらない()
{
var func = new MeanSquaredError();
var x0 = new Variable(Matrix <float> .Build.DenseOfArray(new float[, ] {
{ 1, 1, 1 }
}));
var loss = func.Forward(
x0,
new Variable(Matrix <float> .Build.DenseOfArray(new float[, ] {
{ 1, 2, 3 }
}))
);
loss.CurrentGrad = loss.Value;
var gxs = func.Backward(loss).ToList();
Assert.AreEqual(gxs[0].ColumnCount, x0.Value.ColumnCount);
Assert.AreEqual(gxs[0].RowCount, x0.Value.RowCount);
}
public void Forwardできる()
{
var func = new MeanSquaredError();
var loss = func.Forward(
new Variable(Matrix <float> .Build.DenseOfArray(new float[, ] {
{ 1, 1, 1 }
})),
new Variable(Matrix <float> .Build.DenseOfArray(new float[, ] {
{ 1, 2, 3 }
}))
);
Helper.AssertMatrixAlmostEqual(
loss.Value,
Matrix <float> .Build.DenseOfArray(new float[, ] {
{ 1.6666666269302368f }
}),
delta: 0.00001f
);
}