Early Stopping

[sakerlrf]

Hello,

If one needs to use early stopping for training, to prevent overfitting, should this part be incorporated in the hook registry or how this could be made? Any advice!?

If so, what is the right dir to add this new script?

Thank you!

[dreamerlin]

You can refer to #1142

[dreamerlin]

By the way, if you find this repo help you, you can give us a star!