Recommender systems have become a pervasive part of our daily online experience by analyzing past
usage behavior to suggest potentially relevant content, e.g., music, movies, or books.
Today, recommender systems are “the most valuable implementation of Machine Learning” according to
industry experts and IT community. One prominent example is Netflix’s movie and series recommender system,
which is estimated to generate over
$1 Billion revenue per year
(as savings on customer acquisition).