@inproceedings{hong-etal-2026-gr2, title = "$\text{GR}^2$: Mitigating Granularity Collapse via Adaptive Query Routing in Generative Retrieval", author = "Hong, Soona and Lee, Dohyeon and Kim, Jaeyoung and Hwang, Seung-Won", 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.1928/", pages = "43891--43902", ISBN = "979-8-89176-459-0" }