微信用户网络演化模型研究

Research on the Evolution Model of We Chat User Network

微信以其独有的优势,已经成为国内一种十分流行的社交平台.本文基于微信用户网络的具体特征,借助于复杂网络理论和平均场方法,提出一种微信用户网络演化模型以及具体的演化步骤,对该模型进行理论推导,分析该演化模型的度分布特性,并采用真实的微信用户数据对所提模型进行了验证.理论分析和仿真实验表明,由该模型演化生成的微信用户网络具有无标度特性,且度分布指数不仅与节点的活跃度相关,还取决于平衡因子.本文研究不仅有助于人们理解微信网络的内部结构,同时还为谣言等信息在该网络上传播机理研究奠定了基础.

With its unique advantages,WeChat has become a very popular domestic social platform.Based on the specific characteristics of micro-subscriber network,this paper proposes a micro-subscriber network evolution model and concrete evolution steps by means of complex network theory and mean field method.The model is deduced theoretically and the degree distribution of the evolution model is analyzed,and the model is validated by real data.Theoretical analysis and simulation experiments show that the WeChat user network which generated from the evolution of the model with scale-free properties,and not only associated with the activity of the node degree distribution index,also depends on the balance factor.In this paper,our study not only helps people to understand the internal structure of WeChat network,at the same time for rumors or other information on the network transmission mechanism research laid the foundation.