Chain-of-Action: Trajectory Autoregressive Modeling for Robotic Manipulation - Zhang, Wenbo; Hu, Tianrun; Zhang, Hanbo; Qiao, Yanyuan; Qin, Yuchu; Li, Yang; Liu, Jiajun; Kong, Tao; Liu, Lingqiao; Ma, Xiao (Advances in Neural Information Processing Systems, 2025)