https://yellokat.github.io/posts/%EC%B6%94%EC%B2%9C%EC%8B%9C%EC%8A%A4%ED%85%9C-%EB%85%BC%EB%AC%B8-%EB%A6%AC%EB%B7%B0-factorization-machines/
[추천시스템 논문 리뷰] Factorization Machines - Seungwon's Blog