@article{optimalscalinglawsinlearninghierarchical,
  title = {Optimal scaling laws in learning hierarchical multi-index models},
  author = {Leonardo Defilippis and Florent Krzakala and Bruno Loureiro and Antoine Maillard},
  year = {2026},
  eprint = {2602.05846},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2602.05846},
}