@inproceedings{yang-etal-2026-tournament, title = "Tournament-{GRPO}: Group-Wise Tournament Rewards for Reinforcement Learning in Open-Ended Long-Form Generation", author = "Yang, Zixuan and Chen, Yiqun and Yang, Wei and Zhang, Erhan and Shen, Zihan and Wei, Xiaochi and Gao, Yan and Wu, Yi and Hu, Yao and Mao, Jiaxin", 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.1515/", pages = "34556--34573", ISBN = "979-8-89176-459-0" }