Dice Loss for Data-imbalanced NLP Tasks Xiaoya Li author Xiaofei Sun author Yuxian Meng author Junjun Liang author Fei Wu author Jiwei Li author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics Dan Jurafsky editor Joyce Chai editor Natalie Schluter editor Joel Tetreault editor Association for Computational Linguistics Online conference publication li-etal-2020-dice 10.18653/v1/2020.acl-main.45 https://aclanthology.org/2020.acl-main.45/ 2020-07 465 476