ACADREASON: Exploring the Limits of Reasoning Models with Academic Research Problems - Gui, Xin; Zhu; Ren, JinCheng; Chen, Qianben; Wang, Zekun; Li, Yizhi; Liu, Xinpeng; Ren, Wallis_Wenli; Miao, Linyu; Qin, Tianrui; Shu, Ziqi; Zhu, He; et al. (International Conference on Learning Representations, 2026)