微信群信息交流网络中的关键节点识别研究

Identification of Key Nodes in Information Communication Network Based on WeChat Group

[目的/意义]微信群内部存在着复杂的信息交流网络,识别网络中的关键节点对分析微信群内部信息交流行为、成员角色关系及信息传播特征等具有重要意义。[方法/过程]以真实微信群中的交流样本作为研究对象,考虑成员交互的有向性和传递性,通过节点的局部有向交互特征和全局交互特征计算成员之间的关系强度,并作为边权重构建信息交流网络,基于改进的PageRank算法识别微信群中信息交流的关键节点。[结果/结论]通过构建有向、加权的信息交流网络,能够充分反映微信群中信息交流的网络结构及成员角色关系,基于该方法能有效识别微信群信息交流网络中的关键节点。

[Purpose/significance] There exits complex information communication network in WeChat group,and identifying the key nodes in network is of far-reaching significance for analyzing the information communication behaviors,the relationship among group members and the information dissemination characteristics. [Method/process] Taking the real communication sample as study object,and considering the directivity and transitivity of member interaction,the paper calculates strength of member relationship based on the local directional interaction and global interaction of nodes,and the relationship strength is taken as the edge weight to construct the information communication network. In addition,the key nodes of information communication in WeChat group are identified based on the improved PageRank algorithm. [Result/conclusion] By constructing directional and weighted information communication network,it can fully reflect the network structure of information communication in WeChat group and the role relationship among members,and the key nodes in the information communication network can be effectively identified based on this method.