arXiv:2509.17990cs.LGnlin.PS2025-09被引 2

从静态图像反推动态规律,让数据自己“跳舞”

Equilibrium flow: From Snapshots to Dynamics

  • 用连续动力学模型学习保持给定分布的演化过程
  • 成功恢复洛伦兹吸引子混沌特征,高维图灵模式重建精度高
  • 可逆向设计生命般自组织行为,适合生成与建模研究者

科学数据,如生物学中的细胞快照或宇宙学中的天体分布,通常来自潜在的动力系统,表现为静态模式。这些快照虽无时间顺序,却隐含了维持其形态的过程。本文研究此类分布对底层动力系统的约束程度,并提出等效流(Equilibrium flow)方法,学习能够保持给定模式分布的连续动力学。该方法在二维系统中成功识别合理动力学,复现洛伦兹吸引子的典型混沌行为。针对灰-斯科特模型生成的高维图灵模式,我们开发无需训练的高效变体,定量与定性均验证其高保真度。分析表明,解空间不仅受数据限制,也受学习模型归纳偏置影响。此能力超越已知系统还原,开启人工生命逆向设计新范式:指定目标分布,即可发现维持它的局部交互规则,从而自发涌现出类生命群体行为,如聚群、吸引与排斥等复杂现象。

原文摘要 · Abstract (English)

Scientific data, from cellular snapshots in biology to celestial distributions in cosmology, often consists of static patterns from underlying dynamical systems. These snapshots, while lacking temporal ordering, implicitly encode the processes that preserve them. This work investigates how strongly such a distribution constrains its underlying dynamics and how to recover them. We introduce the Equilibrium flow method, a framework that learns continuous dynamics that preserve a given pattern distribution. Our method successfully identifies plausible dynamics for 2-D systems and recovers the signature chaotic behavior of the Lorenz attractor. For high-dimensional Turing patterns from the Gray-Scott model, we develop an efficient, training-free variant that achieves high fidelity to the ground truth, validated both quantitatively and qualitatively. Our analysis reveals the solution space is constrained not only by the data but also by the learning model's inductive biases. This capability extends beyond recovering known systems, enabling a new paradigm of inverse design for Artificial Life. By specifying a target pattern distribution, we can discover the local interaction rules that preserve it, leading to the spontaneous emergence of complex behaviors, such as life-like flocking, attraction, and repulsion patterns, from simple, user-defined snapshots.

动态建模逆向设计图灵模式生成模型

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