Jing Liu2 papers on this site (2017–2021)RocketQA: An Optimized Training Approach to Dense Passage Retrieval for Open-Domain Question AnsweringYingqi Qu, Yuchen Ding, Jing Liu, et al.2021DuReader: a Chinese Machine Reading Comprehension Dataset from Real-world ApplicationsWei He, Kai Liu, Jing Liu, et al.2017