节点中心性对复杂网络传播模式的影响分析

发布时间：2018-05-11 15:38

本文选题：复杂网络 + 结构异构性　；参考：《物理学报》2017年12期

【摘要】：在众多的重要节点评估方法研究中,具有较高中心性的节点一直是关注的焦点,许多传播行为的研究也主要围绕高中心性节点展开,因此在一定程度上忽略了低中心性节点对传播行为的影响.本文从传播异构性角度,通过初始感染最大中心性节点和最小中心性节点揭示网络结构异构性对信息传播的影响.实验结果表明,传播过程中存在"链型"和"扇型"两种传播模式,在初始感染比例不断提升的情况下,两种传播模式的相互转换引发传播速率的变化,进一步促使非线性传播规模交叉现象的产生.这一现象说明,在宏观的信息传播过程中,最小中心性节点的影响力不容忽视,尤其在初始感染比例升高时,最小中心性节点比最大中心性节点更具传播优势.
[Abstract]:In the research of many important node evaluation methods, the node with high centrality has been the focus of attention, and many studies of communication behavior mainly focus on the high school mental node. Therefore, to some extent, the influence of low-center nodes on communication behavior is ignored. From the point of view of transmission heterogeneity, this paper reveals the influence of network structure heterogeneity on information transmission through initial infection of maximum central node and minimum central node. The experimental results show that there are two transmission modes, "chain" and "fan" in the process of transmission. When the initial infection ratio is increasing, the mutual conversion of the two transmission modes leads to the change of transmission rate. Further promote the emergence of nonlinear propagation scale crossover phenomenon. This phenomenon shows that in the process of macro-information transmission, the influence of the minimum central node can not be ignored, especially when the initial infection ratio increases, the minimum central node has more advantages than the largest central node.
【作者单位】：西南大学计算机与信息科学学院;
【基金】：国家自然科学基金(批准号:61402379,61403315) 中央高校基本科研业务费专项资金(批准号:XDJK2016A008,XDJK2016B029) 重庆市科技研发基地建设计划(国际科技合作)项目(批注号:cstc2015gjhz40002)资助的课题~~
【分类号】：O157.5

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