SeqVAT: Virtual Adversarial Training for Semi-Supervised Sequence Labeling Luoxin Chen author Weitong Ruan author Xinyue Liu author Jianhua Lu author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics Dan Jurafsky editor Joyce Chai editor Natalie Schluter editor Joel Tetreault editor Association for Computational Linguistics Online conference publication chen-etal-2020-seqvat 10.18653/v1/2020.acl-main.777 https://aclanthology.org/2020.acl-main.777/ 2020-07 8801 8811