Papers › Learning Interpretable Collective Variables for Spreading Processes on Networks

Learning Interpretable Collective Variables for Spreading Processes on Networks

7 Jul 2023arXiv:2307.03491links table onlyarchive 2025-07-28

Marvin Lücke, Stefanie Winkelmann, Jobst Heitzig, Nora Molkenthin, Péter Koltai

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Collective variables (CVs) are low-dimensional projections of high-dimensional system states. They are used to gain insights into complex emergent dynamical behaviors of processes on networks. The relation between CVs and network measures is not well understood and its derivation typically requires detailed knowledge of both the dynamical system and the network topology. In this work, we present a data-driven method for algorithmically learning and understanding CVs for binary-state spreading processes on networks of arbitrary topology. We demonstrate our method using four example networks: the stochastic block model, a ring-shaped graph, a random regular graph, and a scale-free network generated by the Albert-Barab\'asi model. Our results deliver evidence for the existence of low-dimensional CVs even in cases that are not yet understood theoretically.

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