Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (6): 1732-1742.doi: 10.12305/j.issn.1001-506X.2023.06.17

• Systems Engineering • Previous Articles    

Node importance evaluation in dynamic system based on kill-web contribution rate

Changjiang QIN1,2, Keyu WU1,*, Qing CHENG1, Jincai HUANG1   

  1. 1. College of Systems Engineering, National University of Defense Technology, Changsha 410073, China
    2. Undergraduate School, National University of Defense Technology, Changsha 410073, China
  • Received:2022-01-13 Online:2023-05-25 Published:2023-06-01
  • Contact: Keyu WU

Abstract:

Aiming at the insufficient research on the characterization of node functional heterogeneity and diversity, the dynamic construction of system models, and the calculation of system operational capability in the evaluation of node importance in current combat systems, a kill-web capability model for dynamic combat system is established, and a dynamic calculation model method and search algorithm for kill-web capability are proposed. Considering the quantity and quality of the kill chain, a kil-web capability index (KWCI) and a node importance evaluation model based on the contribution rate of the KWCI are proposed. In the simulation experiment, the degree of decline of the KWCI after the attacking of network by seven attack methods, such as the KWCI and the degree centrality, is compared under different space-time conditions. The simulation results show that the proposed method is significantly superior to other benchmark methods, verifying the rationality of the proposed algorithm.

Key words: kill-web, contribution rate, dynamic system, node importance evaluation

CLC Number: 

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