Could you share the dataset?

[marsggbo]

It seems that the dataset in your code has been already encoded. Could you share the dataset? Thanks!

[ZHAO, BO]

I use the CIFAR100 dataset. You can download it using
https://www.cs.toronto.edu/~kriz/cifar-100-python.tar.gz
then decompress it and put them in the fold ../data/cifar-100-python/