Minimal specialization: Coevolution of network structure and dynamics

Annika King, Dallas Smith and Benjamin Webb

Physica A: Statistical Mechanics and its Applications, 2024, vol. 651, issue C

Abstract: The changing topology of a network is driven by the need to maintain or optimize network function. As this function is often related to moving quantities such as traffic, information, etc., efficiently through the network, the structure of the network and the dynamics on the network directly depend on the other. To model this interplay of network structure and dynamics we use the dynamics on the network, or the dynamical processes the network models, to influence the dynamics of the network structure, i.e., to determine where and when to modify the network structure. We model the dynamics on the network using Jackson network dynamics and the dynamics of the network structure using minimal specialization, a variant of the more general network growth model known as specialization. The resulting model, which we refer to as the integrated specialization model, coevolves both the structure and the dynamics of the network. We show that by reducing dynamic bottlenecks, i.e. reducing the network’s maximal asymptotic load, this model simultaneously produces networks with real-world like properties. This includes right-skewed degree distributions, sparsity, the small-world property, and non-trivial equitable partitions. Additionally, when compared to other growth models, the integrated specialization model creates networks with small diameter, minimizing distances across the network. The result are networks that have both dynamic and structural features that allow quantities to more efficiently move through the network.

Keywords: Complex networks; Network growth models; Specialization; Equitable partitions; Bottlenecks (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:651:y:2024:i:c:s0378437124005090

DOI: 10.1016/j.physa.2024.130000

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