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arXiv 提交日期: 2026-05-18
📄 Abstract - PH-Dreamer: A Physics-Driven World Model via Port-Hamiltonian Generative Dynamics

World models built on recurrent state space architectures enable efficient latent imagination, yet remain physically unstructured, producing dynamics that violate conservation and dissipative principles. We introduce a unified Port-Hamiltonian framework that remedies this through three synergistic mechanisms. First, we embed implicit physical priors into recurrent transitions by modeling projected latent evolution as action controlled energy routing governed by flow and dissipation, biasing the projected PH phase space toward a more compact and physically structured representation. Second, we develop a kinematics aware energy world model that estimates the Hamiltonian and power balance from proprioceptive observations, providing an explicit physical signal for thermodynamic reasoning. Third, leveraging these energy gradients, we establish an energy guided Actor-Critic that uses Lagrangian multipliers to regularize policy optimization toward lower energy and smoother control. Across visual control benchmarks, this paradigm not only attains superior asymptotic returns but also elevates internal simulator fidelity by establishing a tighter, lower variance alignment between imagined and real rewards, all while reducing latent phase space volume by 4.18-8.41%, energy consumption by up to 7.80%, and mean squared jerk by up to 9.38%.

顶级标签: reinforcement learning model training robotics
详细标签: world model port-hamiltonian dynamics energy-guided control physics-constrained learning 或 搜索:

PH-Dreamer:基于端口-哈密顿生成动力学的物理驱动世界模型 / PH-Dreamer: A Physics-Driven World Model via Port-Hamiltonian Generative Dynamics


1️⃣ 一句话总结

本文提出了一种名为PH-Dreamer的新型世界模型,通过将物理守恒与耗散原理融入循环神经网络,使模型在模拟环境时能更真实地遵循能量变化规律,从而在视觉控制任务中提升预测精度、降低能量消耗并生成更平滑的控制动作。

源自 arXiv: 2605.18303