@article{hierarchicalzeroorderoptimizationfordeep,
  title = {Hierarchical Zero-Order Optimization for Deep Neural Networks},
  author = {Sansheng Cao and Zhengyu Ma and Yonghong Tian},
  year = {2026},
  eprint = {2602.10607},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2602.10607},
}