@inproceedings{wu-etal-2026-knowledge, title = "When Knowledge Is Not Free: Cost-Aware Evidence Selection in Retrieval-Augmented Generation", author = "Wu, Mingyan and Yang, Han and Ben-Porat, Omer and Ziser, Yftah", 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.413/", pages = "8713--8739", ISBN = "979-8-89176-462-0" }