@article{grouprobustpreferenceoptimizationin,
  title = {Group Robust Preference Optimization in Reward-free RLHF},
  author = {Shyam Sundhar Ramesh and Yifan Hu and Iason Chaimalas and Viraj Mehta and Pier Giuseppe Sessa and Haitham Bou Ammar and Ilija Bogunovic},
  year = {2024},
  eprint = {2405.20304},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2405.20304v1},
}