How to Prevent Overfitting 
  
  
    How do you prevent overfitting when your dataset is not that large? My dataset consists of 110 classes, with a total dataset size of about 20k images. 
I have tried data augmentation by a factor of about 16x, but it does not help too much with overfitting. 
Right now, with my augmented dataset, at epoch 8, I am getting a testset Top1 accuracy of 45% but a trainset Top1 accuracy of 69%.