HumanPCR: Probing MLLM Capabilities in Diverse Human-Centric Scenes - Li, Keliang; Shen, Hongze; Shi, Hao; Hou, RuiBing; Chang, Hong; Huang, Jie; Jia, Chenghao; Wang, Wen; Wu, Yiling; Jiang, Dongmei; Shan, Shiguang; CHEN, Xilin (International Conference on Learning Representations, 2026)