PeerDA: Data Augmentation via Modeling Peer Relation for Span Identification Tasks Weiwen Xu author Xin Li author Yang Deng author Wai Lam author Lidong Bing author 2023-07 text Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) Anna Rogers editor Jordan Boyd-Graber editor Naoaki Okazaki editor Association for Computational Linguistics Toronto, Canada conference publication xu-etal-2023-peerda 10.18653/v1/2023.acl-long.484 https://aclanthology.org/2023.acl-long.484/ 2023-07 8681 8699