Intro to Recommender System: Collaborative Filtering
https://towardsdatascience.com/intro-to-recommender-system-collaborative-filtering-64a238194a26
WebDec 10, 2018 · The standard method of Collaborative Filtering is known as Nearest Neighborhood algorithm. There are user-based CF and item-based CF. Let’s first look at User-based CF. We have an n × m matrix of ratings, with user uᵢ, i = 1, ...n and item pⱼ, j=1, …m. Now we want to predict the rating rᵢⱼ if target user i did not watch/rate an item j.
DA: 96 PA: 47 MOZ Rank: 18