arXiv Computer Vision

RoboDuo: Attempt, Check and Atomic Recovery through Code for Vision-Language-Action Models

arXiv AI
Sep 2

EmbodiedSkills: A Unified Framework for Orchestrating, Training, and Deploying VLA Agents

EmbodiedSkills is a unified framework that treats each skill decision as an execution proposal, checking prerequisites and verifying outcomes during long‑horizon vision‑language‑action tasks. It connects high‑level skill selection, bounded low‑level VLA execution, and post‑action verification through a fixed executable‑skill interface, enabling easy replacement of low‑level policies and recording of structured trajectories for supervision and adaptation. Instantiated with Qwen3‑VL and OpenPI/pi0.5 on RoboTwin 2.0 and LIBERO, the framework achieves high success rates (86.20% and 97.40% respectively) and demonstrates effective memory‑dependent task performance.

By Wei Wang, Wenqiao Zhang, Yutong Lin, Yuqian Yuan, Tianwei Lin, Jinhao Mao, Zhenxuan Fan, Mingjian Gao, Yang Dai, Wentong Li, Zheqi Lv, Zheng Dong, Yingjie Niu, Jiaqi Zhu, Jun Xiao, Chao Li, Yueting Zhuang
arXiv AI
Sep 10

AtomicVLA: Unlocking the Potential of Atomic Skill Learning in Robots

AtomicVLA is a unified planning-and-execution framework that generates task-level plans, atomic skill abstractions, and fine-grained actions for robotic manipulation. It builds a scalable atomic skill library using a Skill‑Guided Mixture‑of‑Experts (SG‑MoE) and a flexible routing encoder that assigns new skills to dedicated experts, enabling continual learning. Experiments show that AtomicVLA outperforms baseline models on both simulated and real‑world long‑horizon tasks, achieving significant improvements in task performance and learning efficiency.

By Likui Zhang, Tao Tang, Zhihao Zhan, Xiuwei Chen, Zisheng Chen, Jianhua Han, Jiangtong Zhu, Pei Xu, Hang Xu, Hefeng Wu, Liang Lin, Xiaodan Liang
arXiv AI
2d ago

VLA Policies Do Not Know When Not to Act: Unintended Task Execution and Start Suppression

The study investigates how vision‑language‑action (VLA) policies behave when given no, meaningless, or infeasible instructions. Across six model checkpoints, robots often began moving and completed unintended tasks even with empty or nonsensical prompts. Various suppression techniques—prefixing a stop instruction, gating based on action similarity, and fine‑tuning—showed limited success in preventing unwanted motion or task execution.

By Minsu Jang, Jae-Woo Choi, Youngwoo Yoon, Dohyung Kim
arXiv Computer Vision
Oct 9

Embodied Turing Machines: Stateful Code for Robot Recursive Self-Improvement

The paper proposes a new paradigm called Code-Only-as-Policy (COAP), treating the embodied world as a Turing machine where the robot and environment state are the tape and the policy is the code. COAP replaces traditional vision-language agents by using code to measure, track, and decide based on camera images and proprioception, enabling explicit state storage, fast execution, and extensibility across tasks. On RoboDojo’s 42 bimanual tasks, the COAP library achieved a 70.24% success rate without a model at test time.

By Kairui Hu, Siyuan Hu, Fangzhou Hong, Zhaoxi Chen, Ziwei Liu