“…The movie_genres.dat, assigns 20,809 movies with 20 genres. The user_ratedmovies.dat provides 855,598 ratings of 2,113 users on 10,197 movies, which means 8,684 movies have never been rated. The allowed rating scores are 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, and 5, respectively.…”