This article directly contradicts an article written by Netflix engineers Xavier Amatriain and Justin Basilico, who were in charge of putting the BellKor algori

This article directly contradicts an article written by Netflix engineers Xavier Amatriain and Justin Basilico, who were in charge of putting the BellKor algorithm in production: https://netflixtechblog.com/netflix-recommendations-beyond-the-5-stars-part-1-55838468f429 https://netflixtechblog.com/netflix-recommendations-beyond-t... > But once we overcame those challenges, we put the two algorithms into production, where they are still used as part of our recommendation engine.