Nice work!

You could even go further using algorithms like Sense2Vec (https://spacy.io/demos/sense2vec?%3B%29|NOUN). They are able to figure out similarities between emojis and between emojis and words.

Instagram team did it:

http://instagram-engineering.tumblr.com/post/117889701472/em...

I didn't know that existed. Thanks for the tip!

Nice article