Netinfo Security ›› 2022, Vol. 22 ›› Issue (1): 87-94.doi: 10.3969/j.issn.1671-1122.2022.01.011

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Evaluation of the Importance of Complex Network Nodes Based on VIKOR Model

YIN Mengmeng1, WANG Lei1(), YAO Changhua2, WU Xinrong1   

  1. 1. Army Engineering University of PLA, Nanjing 210001, China
    2. Nanjing University of Information Science and Technology, Nanjing 210044, China
  • Received:2021-08-20 Online:2022-01-10 Published:2022-02-16
  • Contact: WANG Lei E-mail:iponly@126.com

Abstract:

When important nodes in a complex network are deliberately attacked, they will often cause a large-scale paralysis of the network. The existing centrality criterion for evaluating important nodes is only for a certain measure and it has certain limitation. Therefore, a new method combining the existing centrality criterion to rank the importance of nodes in a complex network was proposed. This method combined the criteria of degree centrality, betweenness centrality, proximity centrality and eigenvector centrality to evaluate the importance of nodes from multiple angles and directions. In this method, the entropy method is used to obtain the weight of each criterion, which avoids the deviation caused by human factors. The multi-attribute decision-making method (VIKOR) was used to sort the importance of nodes, and the virus propagation model (SI) was used to simulate the propagation process on three classic complex networks. The results show that it is consistent with the original degree index and intermediate centrality. Compared with index, proximity centrality index and feature vector centrality index, VIKOR method ranks the importance of nodes more comprehensively and accurately.

Key words: complex network, node importance, centrality criterion, entropy weight method, VIKOR model

CLC Number: