RG PA at SemEval-2021 Task 1: A Contextual Attention-based Model with RoBERTa for Lexical Complexity Prediction Gang Rao author Maochang Li author Xiaolong Hou author Lianxin Jiang author Yang Mo author Jianping Shen 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 rao-etal-2021-rg 10.18653/v1/2021.semeval-1.79 https://aclanthology.org/2021.semeval-1.79/ 2021-08 623 626