Target hierarchy-guided knowledge tracing : Fine-grained knowledge state modeling

Xinjie Sun, Kai Zhang, Shuanghong Shen, Fei Wang, Yuxiang Guo, Qi Liu

Abstract: Highlights•First-time introduction of personalized target hierarchy in knowledge tracing.•THKT smartly integrates students’ target hierarchies and problem-solving skills.•THKT-guided tracing offers superior adaptability and hierarchical interpretability.•Experiments validate the THKT model and target hierarchy effectiveness.•Source code is open at https://github.com/xinjiesun-ustc/THKT.