public void Pool2DGradientBatch()
{
var inputActivation = new Double.Volume(new[]
{
1.0, 0.0, 1.0, 1.0,
1.0, 0.0, 1.0, 7.0,
2.0, 0.0, 1.0, 1.0,
1.0, 0.0, 4.0, 1.0,
2.0, 0.0, 2.0, 2.0,
2.0, 0.0, 2.0, 14.0,
4.0, 0.0, 2.0, 2.0,
2.0, 0.0, 8.0, 2.0
}, new Shape(4, 4, 1, 2));
var outputActivation = inputActivation.Pool(2, 2, 0, 2);
var outputActivationGradient = new Double.Volume(new[]
{
1.0, 1.0, 1.0, 1.0,
2.0, 2.0, 2.0, 2.0,
}, new Shape(2, 2, 1, 2));
var result = outputActivation.PoolGradient(inputActivation, outputActivationGradient, 2, 2, 0, 2);
Assert.AreEqual(1.0, result.Get(0, 0, 0, 0));
Assert.AreEqual(1.0, result.Get(3, 1, 0, 0));
Assert.AreEqual(1.0, result.Get(0, 2, 0, 0));
Assert.AreEqual(1.0, result.Get(2, 3, 0, 0));
Assert.AreEqual(2.0, result.Get(0, 0, 0, 1));
Assert.AreEqual(2.0, result.Get(3, 1, 0, 1));
Assert.AreEqual(2.0, result.Get(0, 2, 0, 1));
Assert.AreEqual(2.0, result.Get(2, 3, 0, 1));
}
public void Pool2DBatch()
{
var volume = new Double.Volume(new[]
{
1.0, 0.0, 1.0, 1.0,
1.0, 0.0, 1.0, 7.0,
2.0, 0.0, 1.0, 1.0,
1.0, 0.0, 4.0, 1.0,
2.0, 0.0, 2.0, 2.0,
2.0, 0.0, 2.0, 14.0,
4.0, 0.0, 2.0, 2.0,
2.0, 0.0, 8.0, 2.0
}, new Shape(4, 4, 1, 2));
var result = volume.Pool(2, 2, 0, 2);
Assert.AreEqual(2, result.Shape.GetDimension(0));
Assert.AreEqual(2, result.Shape.GetDimension(1));
Assert.AreEqual(1, result.Shape.GetDimension(2));
Assert.AreEqual(2, result.Shape.GetDimension(3));
Assert.AreEqual(1.0, result.Get(0, 0, 0, 0));
Assert.AreEqual(7.0, result.Get(1, 0, 0, 0));
Assert.AreEqual(2.0, result.Get(0, 1, 0, 0));
Assert.AreEqual(4.0, result.Get(1, 1, 0, 0));
Assert.AreEqual(2.0, result.Get(0, 0, 0, 1));
Assert.AreEqual(14.0, result.Get(1, 0, 0, 1));
Assert.AreEqual(4.0, result.Get(0, 1, 0, 1));
Assert.AreEqual(8.0, result.Get(1, 1, 0, 1));
}
public void Pool2D()
{
var volume = new Double.Volume(new[]
{
1.0, 0.0, 1.0, 1.0,
1.0, 0.0, 1.0, 7.0,
2.0, 0.0, 1.0, 1.0,
1.0, 0.0, 4.0, 1.0
}, new Shape(4, 4), GpuContext.Default);
var result = volume.Pool(2, 2, 0, 2);
Assert.AreEqual(2, result.Shape.GetDimension(0));
Assert.AreEqual(2, result.Shape.GetDimension(0));
Assert.AreEqual(1.0, result.Get(0, 0));
Assert.AreEqual(7.0, result.Get(1, 0));
Assert.AreEqual(2.0, result.Get(0, 1));
Assert.AreEqual(4.0, result.Get(1, 1));
}
public void Pool2DGradient()
{
var inputActivation = new Double.Volume(new[]
{
1.0, 0.0, 1.0, 1.0,
1.0, 0.0, 1.0, 7.0,
2.0, 0.0, 1.0, 1.0,
1.0, 0.0, 4.0, 1.0
}, new Shape(4, 4), GpuContext.Default);
var outputActivation = inputActivation.Pool(2, 2, 0, 2);
var outputActivationGradient = new Double.Volume(new[] { 1.0, 1.0, 1.0, 1.0 }, new Shape(2, 2),
GpuContext.Default);
var result = outputActivation.PoolGradient(inputActivation, outputActivationGradient, 2, 2, 0, 2);
Assert.AreEqual(1.0f, result.Get(0, 0));
Assert.AreEqual(1.0f, result.Get(3, 1));
Assert.AreEqual(1.0f, result.Get(0, 2));
Assert.AreEqual(1.0f, result.Get(2, 3));
}
