Qiu M, Huang X, Chen C, Ji F, Qu C, Wei W, et al. Reinforced History Backtracking for Conversational Question Answering. AAAI [Internet]. 2021 May 18 [cited 2026 May 28];35(15):13718-26. Available from: https://ojs.aaai.org/index.php/AAAI/article/view/17617