@article{towardsoptimalproblemdependent,
  title = {Towards Optimal Problem Dependent Generalization Error Bounds in Statistical Learning Theory},
  author = {Yunbei Xu and Assaf Zeevi},
  year = {2020},
  eprint = {2011.06186},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2011.06186v4},
}