VideoChat-Flash: Hierarchical Compression for Long-Context Video Modeling - Li, Xinhao; Wang, Yi; Yu, Jiashuo; Zeng, Xiangyu; Zhu, Yuhan; Huang, Haian; Gao, Jianfei; Li, Kunchang; He, Yinan; Wang, Chenting; Qiao, Yu; Wang, Yali; et al. (International Conference on Learning Representations, 2026)