@inproceedings{liu-etal-2026-espo, title = "{ESPO}: Error-Structured Prompt Optimization via Diagnose, Diversify, and Stabilize", author = "Liu, Lihao and Tang, Peng and Singh, Kunwar Yashraj and Ghadar, Shabnam", editor = "Lee, Hung-Yi and Dev, Sunipa and Li, Jessy and Elliott, Desmond", booktitle = "Findings of the {A}ssociation for {C}omputational {L}inguistics: {EMNLP} 2026", month = oct, year = "2026", address = "Budapest, Hungary", publisher = "Association for Computational Linguistics", url = "https://aclanthology.org/2026.findings-emnlp.876/", pages = "18502--18518", ISBN = "979-8-89176-462-0" }