@article{learningfrompromptitselfthehierarchicala,
  title = {Learning from Prompt itself: the Hierarchical Attribution Prompt Optimization},
  author = {Dongyu Chen and Jian Ma and Xianpeng Zhang and Lei Zhang and Haonan Lu and Chen Chen and Chuangchuang Wang and Kai Tang},
  year = {2026},
  eprint = {2601.02683},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2601.02683},
}