Key points are not available for this paper at this time.
Chen Qian, Fuli Feng, Lijie Wen, Chunping Ma, Pengjun Xie. Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (Volume 1: Long Papers). 2021.
Chen et al. (Fri,) studied this question.