BigGreen at SemEval-2021 Task 1: Lexical Complexity Prediction with Assembly Models Aadil Islam author Weicheng Ma author Soroush Vosoughi 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 islam-etal-2021-biggreen 10.18653/v1/2021.semeval-1.86 https://aclanthology.org/2021.semeval-1.86/ 2021-08 667 677