@inproceedings{guo-roth-2021-constrained, title = "Constrained Labeled Data Generation for Low-Resource Named Entity Recognition", author = "Guo, Ruohao and Roth, Dan", editor = "Zong, Chengqing and Xia, Fei and Li, Wenjie and Navigli, Roberto", booktitle = "Findings of the Association for Computational Linguistics: ACL-IJCNLP 2021", month = aug, year = "2021", address = "Online", publisher = "Association for Computational Linguistics", url = "https://aclanthology.org/2021.findings-acl.396/", doi = "10.18653/v1/2021.findings-acl.396", pages = "4519--4533" }