@inproceedings{wang-etal-2026-beyond-policy, title = "Beyond Policy Optimization: A Data Curation Flywheel for Sparse-Reward Long-Horizon Planning", author = "Wang, Yutong and Ji, Ryan and Li, Kaixin and Bi, Baolong and Feng, Tao and Sartoretti, Guillaume Adrien", editor = "Lee, Hung-Yi and Dev, Sunipa and Li, Jessy and Elliott, Desmond", booktitle = "Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing", month = oct, year = "2026", address = "Budapest, Hungary", publisher = "Association for Computational Linguistics", url = "https://aclanthology.org/2026.emnlp-main.2694/", pages = "61285--61301", ISBN = "979-8-89176-459-0" }