Movie Recommender System Using Decision Tree Method

Muhammad Bilal Rafif Azaki
Z. K. A. Baizal - [ http://orcid.org/0000-0003-0795-9559 ]


DOI: https://doi.org/10.29100/jipi.v8i3.3867

Abstract


In this modern era, many things that can be done online, one of which is watching movies. When the number of movies increases, people often find it difficult to decide which movie to watch next. To solve this problem, a useful recommendation system was developed to find movies that one might like based on movies that have been watched before. This research develops a movie recommendation system using Collaborative Filtering (CF) with the Decision Tree algorithm. In this study, the data used were movie data and ratings obtained from the grouplens.org website. Then the movielens dataset is filtered and only saves movies with a rating of more than 50 that are used in the recommendation system. In this study, Mean Absolute Error (MAE) is used as a method to assess the accuracy of the movie recommendation system. Based on the research that has been done, Decision Tree gets better results with an MAE value of 0,942 compared to Collaborative Filtering with an MAE value of 1,242.

Keywords


recommender system, movie recommender system, Decision tree, collaborative filtering

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