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Pei-Dong Liu

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#artificial intelligence Preprint Oct 2026

LAPT-Scale: Scaling Embodied Policies with Latent Action Pre-Training on Human Videos

Scaling generalist robotic policies is limited by the high cost of collecting embodied interaction data. Large-scale egocentric human videos offer a rich alternative, but they lack robot action labels, and existing action annotation methods are often noisy under real-world visual complexity and diverse manipulation dyn...

Zhi-Yuan Xiang, Pei-Dong Liu, Ming-Yang Li et al. · 0 citations
Preprint Sep 2026

HaWMPO: Hallucination-Aware World Model-based Policy Optimization for Generalist Robot Policy

Generalist robot policies have demonstrated strong generalization across robotic manipulation tasks, yet their success rates remain limited in com- plex long-horizon scenarios. Recent methods improve Visual-Language-Action (VLA) policies through online reinforcement learning on real robots, but such training relies on...

Ze Chen, Pei-Dong Liu, Jia-Wei Li et al. · 1 citation
Preprint Sep 2026

WLA$^3$: World Latent Action Modeling for Semantics, Dynamics, and Kinematics

WLA$^3$ (World Latent Action Modeling for Semantics, Dynamics, and Kinematics), a unified generalist policy model framework built around representations learned by a World Latent Action Model (WLAM), is introduced.

Pei-Dong Liu, Zhi-Yuan Xiang, Ming-Yang Li et al. · 0 citations
Preprint Aug 2026

CometVLA: Co-Training on an Embodied Data Pyramid towards Physical Understanding

Results demonstrate that physical understanding pre-training genuinely benefits downstream manipulation inVision-language-action models, and introduce GAP tokens, a compact learnable bottleneck that isolates task-agnostic motion regularities and lets the action head consume physical commonsense without corrupting the p...

Hanwen Wan, Dafeng Chi, Lin-Bo Zhai et al. · 1 citation
Jul 2026

Event3R: Asynchronous-to-Global 3D Reconstruction from Event Camera via Spatial-Temporal Feature Aggregation

This work introduces Event3R, a feed-forward framework that directly maps asynchronous event streams to globally consistent 3D point clouds, and proposes a Masked Bin Modeling strategy for self-supervised pre-training, enabling robust temporal representation learning with minimal labeled data.

Jian Huang, Haotian Shen, Xinhao Lou et al. · 0 citations

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