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Yi Xu

3 papers indexed

arxivcs.CVcs.RO2026-07-09

Post-Training in End-to-End Autonomous Driving

Ruining Yang, Muxing Wang, Yixiao Chen, Tongfei Guo, Yi Xu, Can Cui, et al.

End-to-end models that map multimodal inputs directly to future trajectories/maneuvers have emerged as an increasingly prominent research paradigm in autonomous driving. This class of models includes both Vision-Language-Action models and trajectory-generative planners. Unlike cl…

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arxivcs.ROcs.AI2026-07-06

DSWAM: A Dual-System World Action Foundation Model for Fine-Grained Robot Manipulation

Jian Zhu, Jianjun Zhang, Taiyi Su, Tianbin Liu, Zhangyuan Wang, Kai Xie, et al.

World Action Models (WAMs) provide a promising alternative to Vision-Language-Action (VLA) policies by using video-based world modeling as dense supervision for robot action learning. Existing WAMs excel at physically grounded execution, but typically lack the explicit language-l…

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arxivcs.ROcs.AI2026-07-06

Learning 4D Geometric Priors for Inference-Efficient World Action Models

Jianjun Zhang, Jian Zhu, Taiyi Su, Chong Ma, Zitai Huang, Yi Xu, et al.

World Action Models (WAMs) have shown strong potential for robotic manipulation by jointly modeling visual future dynamics and executable action sequences. However, existing video-action co-training methods primarily optimize appearance-oriented video latents, which may insuffici…

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