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论文arXiv 2610.1494118 天前

用于高效扩散式离线强化学习的组合式平均速度建模 ​

原文链接:Compositional Average Velocity Modeling for Efficient Diffusion Offline Reinforcement Learning(arXiv 2610.14941 · 发布日期:2026-10-10)

Compositional Average Velocity Modeling for Efficient Diffusion Offline Reinforcement Learning

提出InsQL以组合式平均速度建模实现单步生成策略,并在离线RL基准和真实机器人操作任务上验证效率与性能。

核心要点 ​

  • 扩散策略依赖多步去噪和训练时BPTT,带来计算开销并限制可扩展部署。
  • InsQL以平均速度替代边际速度参数化,构建跨尺度一致的组合式目标。
  • 框架结合行为正则化Actor-Critic,仅需单个策略网络且无需蒸馏、多阶段或雅可比计算。
  • 在标准离线RL基准和真实机器人操作任务中,性能匹配或超过扩散方法并缩短训练和推理时间。

验证范围与局限:验证范围为标准离线RL基准和真实世界机器人操作任务。

英文摘要 (Abstract) ​

Diffusion-based policies have recently emerged as a powerful paradigm for offline reinforcement learning, but their reliance on multi-step denoising introduces substantial computational overhead and requires backpropagation through time during training, limiting scalability and practical deployment. In this work, we propose \textbf{Instant Flow Q-Learning (InsQL)}, a single-step generative policy learning framework that retains the expressive capacity of diffusion models while eliminating iterative sampling and BPTT. InsQL builds on the flow-matching perspective of diffusion policies, but replaces marginal velocity parameterization with \emph{average-velocity} modeling and introduces a principled compositional mechanism, yielding a theoretically grounded objective that learns average velocity consistently across scales. This formulation provides a direct noise-to-action mapping and enables single-step action generation. InsQL further unifies compositional average-velocity modeling with behavior-regularized actor--critic optimization in a single framework, requiring only a single policy network and avoiding distillation, multi-stage procedures, and Jacobian computations during training. At inference time, actions are generated in a single forward pass and can be refined via value-guided candidate selection to improve performance. Extensive experiments on standard offline RL benchmarks and real-world robotic manipulation tasks show that InsQL matches or surpasses state-of-the-art diffusion-based methods while substantially reducing both training and inference time. Overall, these results establish compositional average-velocity modeling as an efficient and scalable alternative to multi-step generative policies for offline RL.

作者:Thanh Nguyen, Abu Hanif Muhammad Syarubany, Hwanhee Kim, Chang D. Yoo

来源

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  1. arXiv 2610.14941:Compositional Average Velocity Modeling for Efficient Diffusion Offline Reinforcement Learning访问 2026-10-21