@inproceedings{ma-etal-2026-huggingr4, title = "{H}ugging{R}$^4$: A Progressive Reasoning Framework for Discovering Optimal Model Companions", author = "Ma, Shaoyin and Hu, Chenggong and Wang, Huiqiong and Sun, Li and Song, Mingli and Song, Jie", 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.2120/", pages = "48219--48240", ISBN = "979-8-89176-459-0" }