基于BERT的端到端中文篇章事件抽取(A BERT-based End-to-End Model for Chinese Document-level Event Extraction) Hongkuan Zhang author Hui Song author Shuyi Wang author Bo Xu author 2020-10 text zho Proceedings of the 19th Chinese National Conference on Computational Linguistics Maosong Sun editor Sujian Li editor Yue Zhang editor Yang Liu editor Chinese Information Processing Society of China Haikou, China conference publication zhang-etal-2020-ji-yu https://aclanthology.org/2020.ccl-1.36/ 2020-10 390 401