@article{onthenecessityofcollaborationinonline,
  title = {On the Necessity of Collaboration for Online Model Selection with Decentralized Data},
  author = {Junfan Li and Zheshun Wu and Zenglin Xu and Irwin King},
  year = {2024},
  eprint = {2404.09494},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2404.09494v4},
}