DFM-VLA: Iterative Action Refinement for Robot Manipulation via Discrete Flow Matching

作者：Jiayi Chen, Wenxuan Song, Shuai Chen, Jingbo Wang, Zhijun Li, Haoang Li · 单位：The Hong Kong University of Science and Technology (Guangzhou), Harbin Institute of Technology, ShanghaiTech University, Shanghai Institute of Technical Physics, CAS · 会议/期刊：arXiv · 日期：2026-03-27 · 来源：Low-Level Learning-Based Action Modelling / Input Modelling / 2D LLM-based Vision Language Action Models