There's an entire research field about Recommender Systems (https://en.wikipedia.org/wiki/Recommender_system https://en.wikipedia.org/wiki/Recommender_system) w

There's an entire research field about Recommender Systems (https://en.wikipedia.org/wiki/Recommender_system https://en.wikipedia.org/wiki/Recommender_system) with its own conference series (https://recsys.acm.org/ https://recsys.acm.org/).