Searching for an Effective Defender: Benchmarking Defense against Adversarial Word Substitution Zongyi Li author Jianhan Xu author Jiehang Zeng author Linyang Li author Xiaoqing Zheng author Qi Zhang author Kai-Wei Chang author Cho-Jui Hsieh author 2021-11 text Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing Marie-Francine Moens editor Xuanjing Huang editor Lucia Specia editor Scott Wen-tau Yih editor Association for Computational Linguistics Online and Punta Cana, Dominican Republic conference publication li-etal-2021-searching 10.18653/v1/2021.emnlp-main.251 https://aclanthology.org/2021.emnlp-main.251/ 2021-11 3137 3147