多元偏好、社团结构与网络合作涌现仿真研究

Simulation Study of Multi-Preferences and Community Structure on the Emergence of Cooperation

在综合考虑复杂社会网络高集聚性、无标度性以及"社团结构"的基础上,依据"囚徒困境"博弈,建立了基于多元偏好的复杂社会网络演化博弈模型,创新性地将节点影响力运用于博弈策略的更新规则中,并利用Matlab平台进行仿真。从宏观特征和微观结构两方面,通过对照仿真实验,系统研究了多元偏好、社会网络的"社团结构"以及外部连接对合作涌现的影响及其作用机理。研究发现,多元偏好特征下社团结构特征影响主体的异质性期望水平;"社团结构"可以促进合作行为的涌现;社团外部影响力对合作涌现的影响与社团规模有关。

Considering the high concentration,scale-free and＂community structure＂of social networks,according to ＂Prisoner＇s Dilemma＂game,we establish an evolutionary game model for complex social networks based on multi-preferences,apply the node influence to the rule of game strategy update innovatively,and use Matlab platform to simulate.Besides,we analyze the multi-preferences,＂community structure＂and inter-community links to reveal the influence and inherent mechanism of cooperative emergence in social networks systematically from both macroscopic and microcosmic perspective through contrast simulation experiments.It is shown that community structure characteristic under multi-preferences affects the heterogeneous expectation level of agents;＂community structure＂can promote the emergence of cooperation;the influence of inter-community links to cooperative emergence has a relation with community scale.