Pinterest: https://labs.pinterest.com/assets/paper/p2p-www17.pdf
Instacart: https://www.slideshare.net/SharathRao6/recommendation-systems-instacart
Netflix : http://dl.acm.org/citation.cfm?id=2843948
Youtube : http://dl.acm.org/citation.cfm?id=1864770 https://static.googleusercontent.com/media/research.google.com/en//pubs/archive/45530.pdf
Spotify : http://benanne.github.io/2014/08/05/spotify-cnns.html
Keywords: collaborative filtering, word2vec, deep neural networks, candidate generation, content-based recommendation Rules of Machine Learning : http://martin.zinkevich.org/rules_of_ml/rules_of_ml.pdf
Book on Recommender Systems: http://www.springer.com/us/book/9783319296579