@article{gradientbasedbileveloptimizationfordeep,
  title = {Gradient-based Bi-level Optimization for Deep Learning: A Survey},
  author = {Can Chen and Xi Chen and Chen Ma and Zixuan Liu and Xue Liu},
  year = {2022},
  eprint = {2207.11719},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2207.11719v4},
}