Expected datasets structure for ImageNet:
imagenet
|_ train
| |_ n01440764
| |_ ...
| |_ n15075141
|_ val
| |_ n01440764
| |_ ...
| |_ n15075141
|_ ...
Expected datasets structure for CIFAR-10:
cifar10
|_ data_batch_1
|_ data_batch_2
|_ data_batch_3
|_ data_batch_4
|_ data_batch_5
|_ test_batch
|_ ...