@article{differentialprivacyinhierarchical,
  title = {Differentially-Private Multi-Tier Federated Learning},
  author = {Evan Chen and Frank Po-Chen Lin and Dong-Jun Han and Christopher G. Brinton},
  year = {2024},
  eprint = {2401.11592},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2401.11592v5},
}