Train and validate on VGGface2 dataset based on L2-constrained softmax loss.
LFW : max 97%
VGG Validation Set *1 : max 97%
VGG Softmax Classification *2 : max 99%
Trained by python_trainVGG_softmax_PyTorch.py
*1 Fixed 10,000 pairs in the training set
*2 1,024 samples randomly selected every step from the training set