Abstract: The paper reveals the preferred mechanism is a significant evolution characteristic of peer production virtual community by the analysis on static structure and dynamic evolution of virtual community. It builds the cooperation network of peer production virtual community based on Wiki voting administrators behaviors. It analyzes the in-degree and out-degree distribution. The result shows that the out-degree follows power law distribution and the in-degree follows two-stage power law distribution. It applies the link prediction method to sort the potential connection of the network, and it finds that PA index has higher scores than any other indices and the preferred mechanism plays an important role in the network formation process.

Key words: peer production, virtual community, complex network, power law distribution

摘要： 通过大众生产虚拟社区的度分布与动态演化机理分析，揭示了择优机制是大众生产虚拟社区的一个显著演化特征。基于Wiki票选管理员的行为网络构建大众生产虚拟社区合作网络；分析网络的出度分布与入度分布，分析结果显示虚拟社区合作网络的出度服从幂律分布，入度服从双段幂律分布，说明虚拟社区贡献者的选择行为具有较强异质性；采用复杂网络链路预测方法对网络的潜在连接进行排序，结果显示择优指标值在各项指标中得分较高，网络形成过程中择优机制起到重要作用。

关键词: 大众生产, 虚拟社区, 复杂网络, 幂律分布