Which recommendation technique did Netflix use in its famous $1 million Netflix Prize competition to improve its recommendation system?

Film and television streaming platforms use sophisticated recommendation systems to keep viewers engaged and watching more content. These AI-powered systems analyze viewing habits, preferences, and various metrics to suggest the perfect next show. How well do you understand the technology powering your binge-watching sessions? Test your knowledge about the recommendation algorithms that shape the modern entertainment landscape.

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Collaborative filtering with matrix factorization
Content-based filtering using deep learning
Knowledge-based recommendations using decision trees
Association rule learning with basket analysis