个人微博用户网络的节点中心性研究

摘要

以新浪个人微博用户为研究对象，建立了一个“关注”与“被关注”的有向网络。将节点度、紧密度、介数和 K－壳4个社会网络指标应用到微博有向网络，研究了个人微博用户网络中节点的中心性，得到网络中重要性用户，分析了他们在信息传播中的作用和在网络中所表现出来的特性，体现出该用户的兴趣爱好。研究了社会网络指标与度之间的相关性，体现出网络各指标之间的关系。研究结果有助于识别个人微博用户网络的关键节点，进而分析信息在个人微博用户网络中的传播。%A following and followed directed network was established based on Sina individual microblog.By analyzing social network centrality indicators applied to the microblog directed network,such as the node degree,closeness,betweenness and K-shell,the node centrality of the network was found.The results point out the important users and their roles in dissemination of information.Besides,the characteristics of the users on the microblog network were analyzed in order to reflect the personal interests and hobbies.The correlation between the social networks index and the degree of network was studied to reflect the relationship among the indicators.The results will help us to identify individual key nodes,and then analyze the information dissemination on individual microblog user network.