UIT-ISE-NLP at SemEval-2021 Task 5: Toxic Spans Detection with BiLSTM-CRF and ToxicBERT Comment Classification Son T Luu author Ngan Nguyen 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 luu-nguyen-2021-uit 10.18653/v1/2021.semeval-1.113 https://aclanthology.org/2021.semeval-1.113/ 2021-08 846 851