Liu, Chun-Yi, Chuan Zhou, Jia Wu, Yue Hu, and Li Guo. “Social Recommendation With an Essential Preference Space”. Proceedings of the AAAI Conference on Artificial Intelligence 32, no. 1 (April 25, 2018). Accessed April 19, 2024. https://ojs.aaai.org/index.php/AAAI/article/view/11245.