层级网络上的文化传播

Culture Dissemination in Hierarchical Networks

研究了层级网络上的文化传播过程。结合理论推导,仿真分析表明,存在使层级网络从单一文化平衡状态向多元文化平衡状态转变的文化特征数量阈值,揭示了在文化传播过程中层级网络的聚集性、无标度特性,以及网络规模对文化传播的正向促进作用。研究表明,在不同的文化传播平衡状态下,由于层级网络的聚集性、无标度特性所发挥的作用不同,系统中涌现出不同大小及比率的文化群体,在文化异质性较强时,文化群体大小分布呈现出幂律特征;同时,层级网络的中心节点在不同的文化传播状态下也扮演着截然不同的角色。

This article explores the culture dissemination process in hierarchy networks. Together with theoretical analysis, the findings from simulation results strongly suggest that there is a threshold of cultural traits contributing to a hierarchical network＇s variation from mono-culture state to multi-culture state; while the clustering, scale-free property and network size of hierarchical network also play positive roles in cultural dissemination process. In addition, due to the different functions of clustering and scalefree property under different cultural dissemination equilibriums, a host of cultural groups whose size follows power-law distribution with respect to high heterogeneity of culture emerge in system ; at the same time, the central node of hierarchical network plays distinctive roles in response to the different equilibrium scenarios.