RESEARCH PAPER

TacPAC: Tactile Prediction and Real-Time Action Correction in World-Action Models for Contact-Rich Manipulation

Zipei Ma; Xiaofei Wei; Junzhe Jiang; Shunlin Lu; Li Zhang

Classification

View four quadrants
Major category
WAMs
Quadrant
Not assigned
Architecture
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Prediction paradigm
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Source review status
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Category review. Joint video/tactile/action generation supplies a cached plan, and incoming touch corrects unfinished robot commands against predicted contact. This is a contact-rich WAM controller, not a tactile encoding component. Reading evidence

AT A GLANCE

Contribution

TacPAC predicts future visual and tactile observations while planning an action chunk, then uses incoming touch to revise its unfinished actions against a fixed prediction-and-plan cache. On five physical manipulation tasks, it reports 64% average success versus 48% for T-Rex and 22% for its vision-only ablation. The central evidence is the controlled cache-access ablation, not visual prediction quality alone.

Abstract

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Affiliations

School of Data Science, Fudan University; Shanghai Innovation Institute; NeoteAI