@article{halohindsightaugmentedlearningforonlinea,
  title = {HALO: Hindsight-Augmented Learning for Online Auto-Bidding},
  author = {Pusen Dong and Chenglong Cao and Xinyu Zhou and Jirong You and Linhe Xu and Feifan Xu and Shuo Yuan},
  year = {2025},
  eprint = {2508.03267},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2508.03267},
}