Wang, Yu, and Hongxia Jin. “A Deep Reinforcement Learning Based Multi-Step Coarse to Fine Question Answering (MSCQA) System”. Proceedings of the AAAI Conference on Artificial Intelligence 33, no. 01 (July 17, 2019): 7224-7232. Accessed April 25, 2024. https://ojs.aaai.org/index.php/AAAI/article/view/4707.