LEXenstein: A Framework for Lexical Simplification Gustavo Paetzold author Lucia Specia author 2015-07 text Proceedings of ACL-IJCNLP 2015 System Demonstrations Hsin-Hsi Chen editor Katja Markert editor Association for Computational Linguistics and The Asian Federation of Natural Language Processing Beijing, China conference publication paetzold-specia-2015-lexenstein 10.3115/v1/P15-4015 https://aclanthology.org/P15-4015/ 2015-07 85 90