MoocRadar: A Fine-grained and Multi-aspect Knowledge Repository for Improving Cognitive Student Modeling in MOOCs. - Jifan Yu; Mengying Lu; Qingyang Zhong; Zijun Yao 002; Shangqing Tu; Zhengshan Liao; Xiaoya Li 002; Manli Li; Lei Hou 001; Hai-Tao Zheng 002; Juanzi Li; Jie Tang 001 (SIGIR, 2023)