arXiv:2605.22235cs.LGmath.DS2026-05

用可解释的复解析网络,高效发现复杂动力系统的隐藏规律。

Holomorphic Neural ODEs with Kolmogorov-Arnold Networks for Interpretable Discovery of Complex Dynamics

论文配图:Holomorphic Neural ODEs with Kolmogorov-Arnold Networks for Interpretable Discovery of Complex Dynamics
图 1 · 摘自论文原文
  • 用基于B样条的KAN替代MLP,通过可微正则化保持复解析结构
  • 仅280参数即在6类系统上实现>0.95的拟合精度,98.0%还原分形边界
  • 相比黑箱模型更抗噪声、支持符号公式推导,适合物理规律挖掘

由复解析映射(如 $z^2 + c$)支配的复杂动力系统具有分形边界和对初值的极端敏感性。从数据中准确建模这些结构需尊重其复解析几何本质,但传统神经微分方程中的多层感知机(MLP)缺乏复解析先验,违反柯西-黎曼条件,且为不可解释的近似器。本文提出霍洛莫尔克-卡恩-ODE框架,以基于可学习B样条激活的科尔莫戈罗夫-阿诺德网络(KAN)替代MLP,并引入柯西-黎曼方程作为可微正则项以保持复解析性。在涵盖多项式与超越类别的六类复杂动力系统上评估,仅使用280个参数(较MLP基线减少16倍),速度场 $R^2 > 0.95$,通过自动样条转公式拟合成功识别全部六类支配符号形式,并重建朱利亚集分形边界达98.0%一致率。关键优势在于:在10%观测噪声下误差仅增长4%,而MLP增长15.2倍;从二次到三次动力学迁移学习性能提升90.4%。尽管MLP点对点重建误差更低,但本模型唯一具备符号可解释性、强制复解析结构及卓越抗噪能力,是物理信息驱动下复解析动力学发现的高效可解释替代方案。

原文摘要 · Abstract (English)

Complex dynamical systems governed by holomorphic maps such as $z^2 + c$ exhibit fractal boundaries with extreme sensitivity to initial conditions. Accurately modelling these structures from data requires methods that respect the underlying complex-analytic geometry, yet Multi-Layer Perceptrons (MLPs) within Neural Ordinary Differential Equations (Neural ODEs) lack complex-analytic priors, violate the Cauchy--Riemann conditions, and function as opaque approximators incapable of yielding governing equations. We introduce Holomorphic KAN-ODE, a framework that replaces the MLP with a Kolmogorov-Arnold Network (KAN) whose learnable B-spline activations reside on network edges, and incorporates Cauchy--Riemann equations as a differentiable regularization to preserve holomorphic structure. We evaluate on six families of complex dynamical systems spanning polynomial and transcendental classes. With only 280 parameters ($16\times$ fewer than the MLP baseline), the network achieves velocity-field $R^2 > 0.95$ on all six systems, correctly identifies all six governing symbolic families through automatic spline-to-formula fitting, and reconstructs Julia set fractal boundaries with up to 98.0\% agreement. Crucially, the model exhibits only 4\% MSE degradation under 10\% observation noise versus $15.2\times$ for MLPs, and achieves 90.4\% improvement in transfer learning from quadratic to cubic dynamics. While the MLP attains lower pointwise reconstruction error due to its larger capacity, the KAN uniquely provides interpretable symbolic equations, enforced holomorphic structure, and superior noise resilience, capabilities that are entirely absent in black-box architectures. These results establish KANs as a parameter-efficient, interpretable alternative to MLPs for physics-informed discovery of holomorphic dynamics.

复解析系统可解释模型神经微分方程符号发现

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