Constrained Labeled Data Generation for Low-Resource Named Entity Recognition Ruohao Guo author Dan Roth 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 guo-roth-2021-constrained 10.18653/v1/2021.findings-acl.396 https://aclanthology.org/2021.findings-acl.396/ 2021-08 4519 4533