Instagram team did it: http://instagram-engineering.tumblr.com/post/117889701472/emojineering-part-1-machine-learning-for-emoji http://instagram-engineering.tu

Instagram team did it: http://instagram-engineering.tumblr.com/post/117889701472/emojineering-part-1-machine-learning-for-emoji http://instagram-engineering.tumblr.com/post/117889701472/em...