arXiv:2506.05759physics.comp-phastro-ph.IM2025-06被引 1

通过局部相关性分析揭示复杂空间分布中的隐藏规律。

Revealing hidden correlations from complex spatial distributions: Adjacent Correlation Analysis

  • 在局部区域寻找相关性,构建相空间中的相关向量
  • 相关向量呈现规则模式,可能发现新物理定律
  • 适用于多观测系统,可用于分类与预测

物理学持续改变我们对自然的认知。尽管将物理知识与计算方法结合可实现对物理系统演化的精细建模,但对模式与结构的涌现仍理解有限。变量间的相关性是描述关系最可靠的方法。然而,对于复杂模式,直接搜索相关性常不切实际,因复杂性和空间非均匀性会掩盖相关性。我们发现关键在于在局部区域中寻找相关性,并提出一种新方法——邻近相关性分析(Adjacent Correlation Analysis),用于提取这些相关性并以相空间形式表示。当存在多个观测时,可通过概率密度函数(PDF)分析相空间分布。该方法评估代表局部相关性的向量,可叠加于PDF图上形成邻近相关性图。这些相关向量常表现出显著规则模式,或可引导发现新规律。我们推导的向量等价于动力系统在吸引流形上的矢量场。通过高效将空间模式表示为相空间中的相关向量,本方法为分类、预测、参数拟合与预报开辟了新途径。

原文摘要 · Abstract (English)

Physics has been transforming our view of nature for centuries. While combining physical knowledge with computational approaches has enabled detailed modeling of physical systems' evolution, understanding the emergence of patterns and structures remains limited. Correlations between quantities are the most reliable approach to describe relationships between different variables. However, for complex patterns, directly searching for correlations is often impractical, as complexity and spatial inhomogeneity can obscure correlations. We discovered that the key is to search for correlations in local regions and developed a new method, adjacent correlation analysis, to extract such correlations and represent them in phase space. When multiple observations are available, a useful way to study a system is to analyze distributions in phase space using the Probability Density Function (PDF). Adjacent correlation analysis evaluates vectors representing local correlations, which can be overlaid on the PDF plot to form the adjacent correlation plot. These correlation vectors often exhibit remarkably regular patterns and may lead to the discovery of new laws. The vectors we derive are equivalent to the vector field in dynamical systems on the attracting manifold. By efficiently representing spatial patterns as correlation vectors in phase space, our approach opens avenues for classification, prediction, parameter fitting, and forecasting.

相关性分析相空间模式识别

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