1. Ai, F., et al.: Concept-aware deep knowledge tracing and exercise recommendation in an online learning system. (2019)
2. Bian, C.L., Wang, D.L., Liu, S.Y., Lu, W.G., Dong, J.Y.: Adaptive learning path recommendation based on graph theory and an improved immune algorithm. KSII Trans. Internet Inf. Syst. 13, 2277–2298 (2019)
3. Cai, D., Zhang, Y., Dai, B.: Learning path recommendation based on knowledge tracing model and reinforcement learning. In: ICCC, pp. 1881–1885 (2019)
4. Christodoulou, P.: Soft actor-critic for discrete action settings. CoRR abs/1910.07207 (2019)
5. Ghosh, A., Heffernan, N., Lan, A.S.: Context-aware attentive knowledge tracing. In: Proceedings of the 26th ACM SIGKDD International Conference on Knowledge Discovery & Data Mining, pp. 2330–2339 (2020)