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Yanwei Fu

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#artificial intelligence Preprint Oct 2026

Vela: Scaling Vision-Language-Action Models with Adaptive Action Curve Parametrization

Most vision-language-action models represent future motion as fixed-rate action chunks, tying temporal resolution and prediction horizon to a fixed output budget. This pointwise representation wastes capacity on highly correlated neighboring actions, leaves temporal continuity and smoothness to be learned implicitly, a...

Yi-Fan Li, Jia-Xu Wang, Dong-Ming Wu et al. · 0 citations
Preprint Aug 2026

StructRL: Structured Action-Space Exploration for Flow-Based VLAs

Across three flow-based VLA models on multiple simulated manipulation benchmarks and two real-world tasks, StructRL improves exploration efficiency and OOD performance over prior in-chain baselines, demonstrating the effectiveness of structured action-space exploration for adapting flow-based VLA with RL.

Jia-Rui Yang, Bin Zhu, Jing-Jing Chen et al. · 1 citation
Preprint Aug 2026

Vid2WAM: Distilling Video Diffusion Priors into World Action Models

Vid2WAM is proposed, an offline distillation framework that transfers visual diffusion priors from a large video foundation model into a compact WAM student and introduces source-aware residual action adaptation that learns source-specific corrections around a shared action backbone and mitigates interference from nois...

Chen-Hao Qiu, Ruixiang Wang, Runyi Zhao et al. · 2 citations

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