Lexical Complexity Controlled Sentence Generation for Language Learning Nie Jinran author Yang Liner author Chen Yun author Kong Cunliang author Zhu Junhui author Yang Erhong author 2023-08 text eng Proceedings of the 22nd Chinese National Conference on Computational Linguistics Maosong Sun editor Bing Qin editor Xipeng Qiu editor Jing Jiang editor Xianpei Han editor Chinese Information Processing Society of China Harbin, China conference publication jinran-etal-2023-lexical https://aclanthology.org/2023.ccl-1.56/ 2023-08 648 664