Jisen Chen Jian Shen 0003 Ting Long Liping Shen Weinan Zhang 0001 Yong Yu 0001 Heterogeneous Graph Representation for Knowledge Tracing. 224-235 2022 ICONIP (1) https://doi.org/10.1007/978-3-031-30105-6_19 conf/iconip/2022-1 db/conf/iconip/iconip2022-1.html#ChenSLS0022