@article{onlinelearningonhiddenconvexlossesviaalg,
  title = {Online Learning on Hidden-Convex Losses via Algorithmic Equivalence: Optimal Regret, Geometric Barrier, and Bandit Feedback},
  author = {Anas Barakat and Andreas Kontogiannis and Vasilis Pollatos and Ioannis Panageas and Antonios Varvitsiotis},
  year = {2026},
  eprint = {2605.26373},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2605.26373},
}