@inproceedings{clevecontrastivepretrainingforevent,
  title = {CLEVE: Contrastive Pre-training for Event Extraction},
  author = {Ziqi Wang and Xiaozhi Wang and Xu Han and Yankai Lin and Lei Hou and Zhiyuan Liu and Peng Li and Juanzi Li and Jie zhou},
  year = {2021},
  booktitle = {ACL 2021 5},
  eprint = {2105.14485},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2105.14485v1},
}