GPR-OPT: A Practical Gaussian optimization criterion for implicit recommender systems

Ting Bai, Xiaotong Wang, Zhenhao Zhang, Wei Song, Bin Wu, Jian-Yun Nie

Abstract: Highlights•A Gaussian-based optimization function for implicit collaborative filtering.•Converting the implicit feedback to learnable explicit feedback with self-adaptive confidence in recommendation systems.•A lightweight optimization criterion can be easily integrated into most recommendation methods.