@article{efficientdistributionsimilarity,
  title = {Efficient Distribution Similarity Identification in Clustered Federated Learning via Principal Angles Between Client Data Subspaces},
  author = {Saeed Vahidian and Mahdi Morafah and Weijia Wang and Vyacheslav Kungurtsev and Chen Chen and Mubarak Shah and Bill Lin},
  year = {2022},
  eprint = {2209.10526},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2209.10526v1},
}