Roles of mixing patterns in cooperation on a scale-free networked game
Roles of mixing patterns in cooperation on a scale-free networked game
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DOI：
10.1103/physreve.76.027101
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发表时间：
2007-08-01
影响因子：
2.4
通讯作者：
Wang, Xiaofan
中科院分区：
文献类型：
--
作者：
Rong, Zhihai;Li, Xiang;Wang, Xiaofan
我们研究度混合模式如何影响网络囚徒困境博弈中合作的出现。我们的研究表明，当一个网络按度变得同配混合时，大度顶点（枢纽节点）往往紧密地相互连接，这破坏了合作者之间的可持续性，并促进了背叛者的入侵，而在异配网络中，枢纽节点之间的隔离保护了合作的枢纽节点坚持其初始策略，以避免灭绝。
We investigate how the degree-mixing pattern affects the emergence of cooperation in the networked prisoner's dilemma game. Our study shows that when a network becomes assortative mixing by degree, the large-degree vertices (hubs) tend to interconnect to each other closely, which destroys the sustainability among cooperators and promotes the invasion of defectors, whereas in disassortative networks, the isolation among hubs protects the cooperative hubs in holding onto their initial strategies to avoid extinction.