HamiltonDinggg at SemEval-2021 Task 5: Investigating Toxic Span Detection using RoBERTa Pre-training Huiyang Ding author David Jurgens 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 ding-jurgens-2021-hamiltondinggg 10.18653/v1/2021.semeval-1.31 https://aclanthology.org/2021.semeval-1.31/ 2021-08 263 269