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Author

Cheng Chi

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Preprint Sep 2026

TacDyn-WAM: Learning Implicit Tactile Dynamics in a Heterogeneous Visuo-Tactile World Action Model

World action models improve robotic manipulation by conditioning actions on predicted futures, yet existing tactile variants largely inherit video-generation pipelines that reconstruct future tactile observations through iterative denoising. Such prediction can become unreliable under deployment drift: small changes in...

En-Yi Wang, Ming-Xin Wang, Quan Shi et al. · 0 citations
Preprint Aug 2026

StageWAM: Joint-Embedding Stage Prediction for World-Action Models in Robot Manipulation

StageWAM is introduced, which augments a Motus-based World Action Model with Stage-JEPA, a goal-conditioned Joint-Embedding Predictive Architecture (JEPA) predictor, which uses a frozen V-JEPA2 encoder to extract the current-state representation and predicts the latent target of the next inferred stage.

Xiao Liu, Yuguang Yang, Xi Wang et al. · 2 citations · ⚡1
Preprint Aug 2026

JEPA-WAM: Learning Vision-Language-Action Policies with Joint-Embedding World Modeling

JEPA-WAM, a latent WAM built in a pretrained V-JEPA space, which couples latent transition prediction with continuous action generation through a shared predictor, predicts a spatially structured joint current-future target that captures task-shared visual temporal structure between current and future observations, whi...

Yi-Han Lin, Jia-Wei He, Shi-Feng Bao et al. · 12 citations · ⚡1

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