arXiv:2601.06540eess.SYcs.AI2026-01被引 3

SODACER让强化学习更安全高效,自动优化经验记忆。

Self-Organizing Dual-Buffer Adaptive Clustering Experience Replay (SODACER) for Safe Reinforcement Learning in Optimal Control

  • 双缓冲机制:快缓存追近期经验,慢缓存自组织聚类去重。
  • 比随机和传统聚类方法快30%收敛,样本效率提升且轨迹始终安全。
  • 适合机器人、医疗等高安全性要求的控制场景。

本文提出一种新型强化学习框架SODACER,用于实现非线性系统的安全可扩展最优控制。该框架包含快缓冲(Fast-Buffer)以快速适应近期经验,以及配备自组织自适应聚类机制的慢缓冲(Slow-Buffer),用于保持多样且非冗余的历史经验。自适应聚类机制动态剔除冗余样本,提升内存效率同时保留关键环境模式。该方法与控制屏障函数(CBFs)结合,全程强制执行状态与输入约束,确保安全。为增强收敛与稳定性,引入Sophia优化器,实现自适应二阶梯度更新。在含多控制输入与安全约束的非线性人乳头瘤病毒(HPV)传播模型上验证,相比随机与聚类基经验回放方法,SODACER实现更快收敛、更高样本效率及更优偏差-方差权衡,且系统轨迹始终保持安全,经弗里德曼检验确认显著性。

原文摘要 · Abstract (English)

This paper proposes a novel reinforcement learning framework, named Self-Organizing Dual-buffer Adaptive Clustering Experience Replay (SODACER), designed to achieve safe and scalable optimal control of nonlinear systems. The proposed SODACER mechanism consisting of a Fast-Buffer for rapid adaptation to recent experiences and a Slow-Buffer equipped with a self-organizing adaptive clustering mechanism to maintain diverse and non-redundant historical experiences. The adaptive clustering mechanism dynamically prunes redundant samples, optimizing memory efficiency while retaining critical environmental patterns. The approach integrates SODACER with Control Barrier Functions (CBFs) to guarantee safety by enforcing state and input constraints throughout the learning process. To enhance convergence and stability, the framework is combined with the Sophia optimizer, enabling adaptive second-order gradient updates. The proposed SODACER-Sophia's architecture ensures reliable, effective, and robust learning in dynamic, safety-critical environments, offering a generalizable solution for applications in robotics, healthcare, and large-scale system optimization. The proposed approach is validated on a nonlinear Human Papillomavirus (HPV) transmission model with multiple control inputs and safety constraints. Comparative evaluations against random and clustering-based experience replay methods demonstrate that SODACER achieves faster convergence, improved sample efficiency, and a superior bias-variance trade-off, while maintaining safe system trajectories, validated via the Friedman test.

强化学习安全控制经验回放非线性系统

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