Doc-CoB: Enhancing Multi-Modal Document Understanding with Visual Chain-of-Boxes Reasoning. - Ye Mo; Zirui Shao; Kai Ye 006; Xianwei Mao; Bo Zhang 069; Hangdi Xing; Peng Ye 006; Gang Huang; Kehan Chen; Zhou Huan; Zixu Yan; Sheng Zhou 004 (CoRR, 2025)