CS194 Project4: 
Facial Keypoint Detection with Neural Networks 

This project is so cool that we can use self-trained Neural Network model to auto annotate images! 

There is definitely more to explore with the parameters of layers in the model, how we decide training data and validation data, and how to speed up the training. For now, it's already surprising to me that the model can predict key points on a face after being trained on a small dataset for a minute!