SpanProto: A Two-stage Span-based Prototypical Network for Few-shot Named Entity Recognition Jianing Wang author Chengyu Wang author Chuanqi Tan author Minghui Qiu author Songfang Huang author Jun Huang author Ming Gao author 2022-12 text Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing Yoav Goldberg editor Zornitsa Kozareva editor Yue Zhang editor Association for Computational Linguistics Abu Dhabi, United Arab Emirates conference publication wang-etal-2022-spanproto 10.18653/v1/2022.emnlp-main.227 https://aclanthology.org/2022.emnlp-main.227/ 2022-12 3466 3476