Movie Recommendation Systems Using Actor-Based Matrix Computations in South Korea

A recommendation system saves the user the trouble of searching for information and analyzes their profile to recommend the most suitable content. A variety of techniques, including content-based, collaborative, and knowledge-based techniques, have been proposed for performing recommendations. Recommendation systems are employed to suggest content, such as books, music, and videos; furthermore, they are often used in e-commerce. In particular, the South Korean film industry recommends movies using a collaborative filtering method based on genres, which is commonly used in film recommendation systems. However, this method can be ineffective when users initially encounter film recommendation services or have specific preferences with respect to movies, such as preferences regarding actors or directors. This motivated us to propose an actor-based recommendation system using the content-based filtering that considers actors' filmography information and the genres of 509 South Korean movies. The effectiveness and performance of the suggested system are evaluated in comparison with those of a traditional genre-oriented recommendation system.