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arXiv 2406.03212cs.LGq-bio.QM
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使用时间卷积自编码器推断动态系统的时变耦合

Inferring the time-varying coupling of dynamical systems with temporal convolutional autoencoders

Emory University(埃默里大学)

Josuan Calderon, Gordon J. Berman

AI总结:

针对非线性非平稳动态系统的因果推断难题,提出结合替代数据度量与双头机器学习架构的TACI方法,能准确识别并量化时变因果作用的方向与强度。

摘要:

大多数评估复杂动态系统因果关系的传统方法在变量间相互作用具有内在非线性和非平稳性时会失效。为此,我们提出了用于因果推断的时间自编码器(TACI)。这是一种结合了新型替代数据度量指标与新颖的双头机器学习架构的方法,旨在识别并测量时变因果相互作用的方向与强度。通过对合成数据集和真实世界数据集进行测试,我们证明了TACI能够准确量化多种系统中的动态因果相互作用。研究结果不仅展示了该方法相较于现有方法的有效性,也突显了其在深入理解物理与生物系统中时变相互作用底层机制方面的巨大潜力。

英文摘要:

Most approaches for assessing causality in complex dynamical systems fail when the interactions between variables are inherently non-linear and non-stationary. Here we introduce Temporal Autoencoders for Causal Inference (TACI), a methodology that combines a new surrogate data metric for assessing causal interactions with a novel two-headed machine learning architecture to identify and measure the direction and strength of time-varying causal interactions. Through tests on both synthetic and real-world datasets, we demonstrate TACI's ability to accurately quantify dynamic causal interactions across a variety of systems. Our findings display the method's effectiveness compared to existing approaches and also highlight our approach's potential to build a deeper understanding of the mechanisms that underlie time-varying interactions in physical and biological systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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