So I  guess the torch should be changed to long type. another error occurred after adding     train = data_utils.TensorDataset(DEAP_x_train_torch.long(), DEAP_y_train_torch.long（）)  
Screenshot from 2018-07-30 10-41-06.png807×105 17.2 KB
  Now, I am confused. Could you tell me where is wrong？Thanks a lot!