@article{shakyprependamultigrouplearnerwithimprov,
  title = {ShakyPrepend: A Multi-Group Learner with Improved Sample Complexity},
  author = {Lujing Zhang and Daniel Hsu and Sivaraman Balakrishnan},
  year = {2026},
  eprint = {2603.07319},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2603.07319},
}