A paper on knowledge tracing with extracting interpretable feature trees was accepted for AAAI Symposium on Educational Advances in Artificial Intelligence (EAAI):

Sein Minn, Jill-Jenn Vie, Koh Takeuchi, Hisashi Kashima, Feida Zhu. Interpretable Knowledge Tracing: Simple and Efficient Student Modeling with Causal Relations. In Proceedings of the 12th AAAI Symposium on Educational Advances in Artificial Intelligence (EAAI), 2022.