@article{efficientactivelearningwithabstention,
  title = {Efficient Active Learning with Abstention},
  author = {Yinglun Zhu and Robert Nowak},
  year = {2022},
  eprint = {2204.00043},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2204.00043v2},
}