Preprint
A2Search: Ambiguity-Aware Question Answering with Reinforcement Learning.
Abstract
A2 S EARCH : A MBIGUITY-AWARE Q UESTION A NSWERING WITH R EINFORCEMENT L EARNING Fengji Zhang1 , Xinyao Niu2 , Chengyang Ying3 , Guancheng Lin1 , Zhongkai Hao3 , Fan Zhou2 , Chengen Huang2 , Jacky Keung1 , Bei Chen2 , Junyang Lin2 1 City University of Hong Kong, 2 Alibaba Group, 3 Tsinghua University