NLLLoss 

Hi, thanks for your code! However, I think there might be a bug on NLLLoss: I think the input of nn.NLLloss() is after logsoftmax according to this manual: https://pytorch.org/docs/stable/generated/torch.nn.NLLLoss.html, however, here only softmax is provided in model.py therefore, the loss is always negative. I only check the Transformer model.


Kind regards,
John 