College of Economics and Management, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 211106, China.
Center for Polymer Studies and Department of Physics, Boston University, Boston, MA 02215, USA.
Sci Rep. 2017 Mar 24;7:45237. doi: 10.1038/srep45237.
Strategies adopted by individuals in a social network significantly impact the network, and they strongly affect relationships between individuals in the network. Links between individuals also heavily influence their levels of cooperation. Taking into account the evolution of each individual's connection, we explore how sensitivity and visibility affect the prisoner's dilemma game. The so-called 'sensitivity' and 'visibility' respectively present one's self-protection consciousness and the ability of gaining information. We find that at moderate levels of player sensitivity cooperative behavior increases, but that at high levels it is inhibited. We also find that the heterogeneity of the weight of individuals at the end of the game is higher when sensitivity and visibility are increased, but that the successful-defection-payoff has less impact on the weight of individuals and on the relationship between the heterogeneity of the weight of individuals and the density of cooperators. This framework can be used to clarify the interaction mechanism between the micro-level of individual behavior and the macro-level of individual co-evolutionary processes.
个体在社交网络中所采用的策略会显著影响网络，并且强烈影响网络中个体之间的关系。个体之间的联系也极大地影响他们的合作水平。考虑到每个个体连接的演变，我们探讨了敏感性和可见性如何影响囚徒困境博弈。所谓的“敏感性”和“可见性”分别表示一个人的自我保护意识和获取信息的能力。我们发现，在玩家敏感性适中的情况下，合作行为会增加，但在高水平下会受到抑制。我们还发现，当敏感性和可见性增加时，游戏结束时个体权重的异质性更高，但成功背叛收益对个体权重的影响较小，以及个体权重的异质性与合作者密度之间的关系。这个框架可以用来阐明个体行为的微观层面和个体共同进化过程的宏观层面之间的相互作用机制。
