Recent studies in network science and control have shown a meaningful relationship between the epidemic processes (e.g., COVID-19 spread) and some network properties. This paper studies how such network properties, namely clustering coefficient and centrality measures (or node influence metrics), affect the spread of viruses and the growth of epidemics over scale-free networks. The results can be used to target individuals (the nodes in the network) to \textit{flatten the infection curve}. This so-called flattening of the infection curve is to reduce the health service costs and burden to the authorities/governments. Our Monte-Carlo simulation results show that clustered networks are, in general, easier to flatten the infection curve, i.e., with the same connectivity and the same number of isolated individuals they result in more flattened curves. Moreover, distance-based centrality measures, which target the nodes based on their average network distance to other nodes (and not the node degrees), are better choices for targeting individuals for isolation/vaccination.
翻译:最近在网络科学和控制方面的研究表明,流行病过程(如COVID-19扩散)和一些网络特性之间存在有意义的关系,本文研究了这种网络特性,即集群系数和中心度措施(或节点影响指标)如何影响病毒的传播和流行病在无规模网络中的蔓延,其结果可用于针对个人(网络中的节点)到\textit{推倒感染曲线}。这种所谓的感染曲线平缓是为了减少保健服务费用和对当局/政府的负担。我们蒙特卡罗的模拟结果表明,集群网络一般比较容易粉碎感染曲线,即具有相同的连通性,而且与个别个人相同的人数导致更平坦的曲线。此外,基于其平均网络距离至其他节点(而不是节点度)的远程中心度措施是针对个人进行隔离/接种的更好选择。</s>