@article{scalingfederatedlinearcontextualbanditsv,
  title = {Scaling Federated Linear Contextual Bandits via Sketching},
  author = {Hantao Yang and Hong Xie and Xutong Liu and Defu Lian},
  year = {2026},
  eprint = {2605.00500},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2605.00500},
}