Proposal of New Index for Describing Node Centralities Based on Oscillation Dynamics on Network
Proposal of New Index for Describing Node Centralities Based on Oscillation Dynamics on Network
复制标题
基于网络振荡动力学的描述节点中心性的新指标的提出
DOI：
10.1109/glocom.2016.7842177
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Masaki Aida
中科院分区：
文献类型：
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作者：
C. Takano;Masaki Aida
由于近年来信息网络技术的快速发展激活了社会网络上的信息交换，因此社会网络上信息或活动的传播动力学是一个有趣的研究对象。网络动态是由强度一般不对称的用户之间的交互产生的。在基于矩阵的网络模型中，用有向图来描述反映用户之间非对称交互的网络结构，用非对称矩阵来描述网络结构。在我们最近的研究中，我们提出了一个利用对称矩阵来描述网络上某种不对称相互作用所产生的动力学的振荡模型。本文在振荡模型的基础上，提出了一种新的扩展节点中心性指标。该指标不仅考虑了网络的拓扑结构，而且还考虑了链路的不对称性、活动源节点的分布以及活动传播的时间演化，能够描述节点中心性的各个方面。
Since recent rapid development of information network technology activates the information exchange on the social network, dynamics for propagation of information or activity on the social network is an interesting research object. The network dynamics is generated by interaction between users whose strength is asymmetric in general. Network structure reflecting the asymmetric interaction between users is modeled by a directed graph, and it is described by an asymmetric matrix in matrix-based network model. In our recent research, we have proposed an oscillation model for describing dynamics on networks generated from a certain kind of asymmetric interaction between nodes by using a symmetric matrix. In this paper, based on the oscillation model, we propose a new extended index of the node centrality. The proposed index can describe various aspect of node centrality that considers not only the topological structure of the network, but also asymmetry of links, the distribution of source node of activity, and temporal evolution of activity propagation.