hub at SemEval-2021 Task 5: Toxic Span Detection Based on Word-Level Classification Bo Huang author Yang Bai author Xiaobing Zhou author 2021-08 text Proceedings of the 15th International Workshop on Semantic Evaluation (SemEval-2021) Alexis Palmer editor Nathan Schneider editor Natalie Schluter editor Guy Emerson editor Aurelie Herbelot editor Xiaodan Zhu editor Association for Computational Linguistics Online conference publication huang-etal-2021-hub-semeval-2021 10.18653/v1/2021.semeval-1.122 https://aclanthology.org/2021.semeval-1.122/ 2021-08 904 908