@article{epistemicregretminimizationlabelfreecaus,
  title = {Epistemic Regret Minimization: Label-Free Causal Critique Beyond Outcome Reward},
  author = {Edward Y. Chang and Longling Geng},
  year = {2026},
  eprint = {2602.11675},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2602.11675},
}