IT微博社会网络结构特征分析

利用体现复杂网络结构特征的指标,比较了IT微博网络与小世界网络和无标度网络的平均最短路径长度和聚集系数,分析了网络节点的度数、介数和接近数,利用最小二乘法对度分布进行拟合,并分析了"度-度"相关性。结果显示:IT微博网络具有小世界和无标度的特征;绝大多数用户只有少量的关系人,介数最大的节点不一定是接近数最大的节点;关系网络的度服从幂律分布;实验网络具有度的异配性,即度值小的节点倾向于与度值大的节点连接,新增加的个体更倾向于与大度数的个体建立联系。

Analysis on Characteristics of Social Network Structure of IT Micro-blog

This paper uses the indicators reflecting the characteristics of complex network structure to compare the average shortest path coeffi- cient and the clustering coefficient of IT Micro-blog network, small-world network and scale-free network,and analyzes the degree,medial num- ber and closed number of node, And it uses the least square method to fit the distribution of degree and analyzes the correlation between de- grees. The results show as follows：IT Miero-blog network has the characteristics of small-world and scale-free;vast majority of users have a few related people,and the node with largest medial number of is not necessarily that with largest close number;the degree of relation network obeys the power law distribution;experimental network has disassortative nodes,that is,the node with small degree tends to relate to that with large degree, and new individuals tend to connect with the individuals with large degree.