Community connectivity and heterogeneity: clues and insights on cooperation on social networks
Community connectivity and heterogeneity: clues and insights on cooperation on social networks
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DOI：
10.1007/s11403-008-0041-7
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发表时间：
2008-12-01
影响因子：
1.1
通讯作者：
Sanchez, Angel
中科院分区：
文献类型：
--
作者：
Lozano, Sergi;Arenas, Alex;Sanchez, Angel
虽然关于结构化群体合作出现的研究很多，但只有少数研究将真实的社交网络视为个体互动的基础。如最近所示[Lozano等人，PLoS ONE 3（4）：e1892，2008]，理解社交网络上的合作行为不仅需要了解其全局（宏观）特征，还需要深入了解其社区（中观）结构。在本文中，我们从合作的弹性的角度来看待这个问题，特别是当网络中的关键位置存在定向外源攻击（插入纯叛逃者）时。我们提出的基于代理的模拟结果显示强有力的证据表明，社交网络的弹性是至关重要的依赖于他们的社区结构，从没有弹性到强大的合作行为。我们的研究结果有重要的意义，了解组织的工作方式，并可以作为指导组织设计。
While studies on the emergence of cooperation on structured populations abound, only few of them have considered real social networks as the substrate on which individuals interact. As has been shown recently [Lozano et al., PLoS ONE 3(4): e1892, 2008], understanding cooperative behavior on social networks requires knowledge not only of their global (macroscopic) characteristic, but also a deep insight on their community (mesoscopic) structure. In this paper, we look at this problem from the viewpoint of the resilience of cooperation, in particular when there are directed exogenous attacks (insertion of pure defectors) at key locations in the network. We present results of agent-based simulations showing strong evidence that the resilience of social networks is crucially dependent on their community structure, ranging from no resilience to robust cooperative behavior. Our results have important implications for the understanding of how organizations work and can be used as a guide for organization design.