WANG, Zhiyuan; DUAN, Jinhao; WANG, Qingni; ZHU, Xiaofeng; CHEN, Tianlong; SHI, Xiaoshuang; XU, Kaidi. COIN: Uncertainty-Guarding Selective Question Answering for Foundation Models with Provable Risk Guarantees. Proceedings of the AAAI Conference on Artificial Intelligence, [S. l.], v. 40, n. 40, p. 33764–33772, 2026. DOI: 10.1609/aaai.v40i40.40667. Disponível em: https://ojs.aaai.org/index.php/AAAI/article/view/40667. Acesso em: 25 may. 2026.