VGR: Visual Grounded Reasoning - Wang, Jiacong; Kang, Zijian; Wang, Haochen; Liang, Xiao; Wang, Ya; Li, Jiawen; Wu, Bohong; Ran, Jiao; Jiang, Haiyong; Feng, Chao; Xiao, Jun (International Conference on Learning Representations, 2026)