Recommendation System, Recommender Systems, Machine Learning, Data Science, Big Data.
Machine Learning model with this approach we typically try to cluster or factorize the rating matrix rᵤᵢ in order to make predictions on the unobserved pairs (u,i), i.e. where rᵤᵢ = “?”. In the following of this article we present the Matrix Factorization algorithm, which is the most popular method