Spa: On the Sparsity of Virtual Adversarial Training for Dependency Parsing Chao Lou author Wenjuan Han author Kewei Tu author 2022-11 text Findings of the Association for Computational Linguistics: AACL-IJCNLP 2022 Yulan He editor Heng Ji editor Sujian Li editor Yang Liu editor Chua-Hui Chang editor Association for Computational Linguistics Online only conference publication lou-etal-2022-spa 10.18653/v1/2022.findings-aacl.2 https://aclanthology.org/2022.findings-aacl.2/ 2022-11 11 21