Substructure Substitution: Structured Data Augmentation for NLP Haoyue Shi author Karen Livescu author Kevin Gimpel author 2021-08 text Findings of the Association for Computational Linguistics: ACL-IJCNLP 2021 Chengqing Zong editor Fei Xia editor Wenjie Li editor Roberto Navigli editor Association for Computational Linguistics Online conference publication shi-etal-2021-substructure 10.18653/v1/2021.findings-acl.307 https://aclanthology.org/2021.findings-acl.307/ 2021-08 3494 3508