Authors

Yikai Wang

Publications 8

Preprint Open access

World Action Modeling with Progressive Visual Planning

World action models (WAMs) have emerged as a promising paradigm for robotic control by jointly predicting future visual dynamics and actions from an initial observation and instruction. However, existing WAMs struggle with long-horizon prediction, as generating dense video rollouts is highly inefficient. Some recent WA …

Preprint Open access

KPI: A Promptable Kernel for Physical Interaction on Humanoids

Yikai Wang, Honghao Zhu, Xiao Hu et al. · 2026

Humanoids now walk, balance and reach with remarkable generality: one whole-body tracking policy follows references from a human, or from an end-to-end policy. That generality travels in the trajectory, and a trajectory alone carries limited information about the interaction it should produce: at contact, the executing …

Preprint Open access

Anticipatory Robot Goalkeeping via Monotone Optimal Stopping

Hao E. Zhang, Ruize Geng, Yisen Li et al. · 2026

Robots engaged in fast physical interactions often need to act before the intent of another agent is fully known. Anticipatory goalkeeping illustrates this challenge. Waiting provides more reliable information about the target but reduces the physical opportunity for interception, whereas acting early preserves reachab …

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