It is shown that conditioning a mobile manipulation policy on a 4D latent map improves spatiotemporal reasoning over long horizons, and experiments show that the map-conditioned policy outperforms image-only VLA baselines.
Robots need to anticipate how their actions will change the world, since manipulation success hinges on the resulting contacts and object motions. However, existing Vision-Language-Action (VLA) policies that predict future observations from shared features leave the forecast decoupled from the actions the policy will a...
Zhe Tao, Fei-Ran Wang, Gao-Wen Liu et al.· 0 citations
Copper-Policy is introduced, which learns a compact World representation with the policy rather than relying on a predefined target space and predicts future observation embeddings conditioned on task intention without reconstructing pixels through temporal joint-embedding prediction.
Ze Feng, Yi-Xu Feng, Ling-Yu Xiao et al.· 1 citation
3D diffusion policies are strong at generating geometrically grounded actions from current observations, but successful manipulation requires not only knowing what motion is feasible now, but also anticipating where the interaction is heading. Existing policies largely leave such foresight to emerge implicitly from act...
Zhong-Bo Zhang, Zai-Bin Zhang, Yi-Fan Wang et al.· 0 citations
World-model planners typically scale outward by rolling farther, sampling more trajectories, or optimizing longer, while assigning the same computation to every imagined transition. We show that making every transition uniformly deeper wastes computation and can degrade planning because useful refinement is concentrate...
Zi-Jian Jin, Yun-Bei Zhang, Yuan-Zhe Liu et al.· 1 citation
Adapting robots to new objects and tasks requires interaction experience that can be costly to obtain. We present WorldContact, a contact-centric world model for deformable-object manipulation, constructed from a limited set of high-quality trajectories to generate additional training data efficiently. It predicts obje...
Caoliwen Wang, Meng-Di Wang, Heng Zhang et al.· 0 citations
Training robust social-navigation policies requires simulators with diverse scene layouts, terrain, and human motion, but constructing such environments and specifying pedestrian behavior is costly. We propose an efficient pipeline that converts ordinary monocular walking videos directly into closed-loop social-navigat...