Bian, Xiaohang, Bo Qin, Xiaozhe Xin, Jianwu Li, Xuefeng Su, and Yanfeng Wang. 2022. “Handwritten Mathematical Expression Recognition via Attention Aggregation Based Bi-Directional Mutual Learning”. Proceedings of the AAAI Conference on Artificial Intelligence 36 (1):113-21. https://doi.org/10.1609/aaai.v36i1.19885.