public void TestPoissonNLLLoss()
{
using (TorchTensor input = FloatTensor.From(new float[] { 0.5f, 1.5f, 2.5f }))
using (TorchTensor target = FloatTensor.From(new float[] { 1f, 2f, 3f }))
{
var componentWiseLoss = ((TorchTensor)input.Exp()) - target * input;
Assert.True(componentWiseLoss.Equal(NN.LossFunction.PoissonNLL(reduction: NN.Reduction.None)(input, target)));
Assert.True(componentWiseLoss.Sum().Equal(NN.LossFunction.PoissonNLL(reduction: NN.Reduction.Sum)(input, target)));
Assert.True(componentWiseLoss.Mean().Equal(NN.LossFunction.PoissonNLL(reduction: NN.Reduction.Mean)(input, target)));
}
}
