@inproceedings {4438,
	title = {The Art of Abstention: Selective Prediction and Error Regularization For Natural Language Processing},
	booktitle = {Association for Computational Linguistics (ACL)},
	year = {2021},
	doi = {10.18653/v1/2021.acl-long.84},
	author = {Ji Xin and Raphael Tang and Yaoliang Yu and Jimmy Lin}
}
