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Acta Armamentarii ›› 2025, Vol. 46 ›› Issue (11): 250141-.doi: 10.12382/bgxb.2025.0141

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An Identification Method for Key Edges in Space-based Kill Chain Network

LI Zheng1,2,*(), HE Minghao1, HU Qiaolin1, FENG Mingyue1   

  1. 1 Department of Information Countermeasure, Air Force Early Warning Academy, Wuhan 430019, Hubei, China
    2 95786 of PLA Unit, Chengdu 610000, Sichuan, China
  • Received:2025-03-04 Online:2025-11-27
  • Contact: LI Zheng

Abstract:

This paper proposes an adaptive key edge detection framework based on deep reinforcement learning to address the challenge of identifying the key edges in space-based kill chain network.This method first uses complex networks to model a space-based kill chain.And then a template-based kill chain search method is proposed by introducing the idea of backtracking search.A key edge exploration paradigm is constructed based on deep reinforcement learning,which combines a layered experience replay mechanism with a dynamic ε-greedy strategy.,The precise localization of key edges is achieved through multi-dimensional state representation.The experiment shows that,in the simulation of space-based kill chain network testing,the Top-10 recognition accuracy of the proposed method reaches 85%,which is 89.5% higher than that of the traditional betweenness centrality method and 19.7% higher than the benchmark of deep Q-network (DQN).In terms of network robustness indicators,the global efficiency reduction rate η is 37.4% higher than the edge betweenness centrality,and the prediction error of the maximum connected component retention rate is controlled within 5%.

Key words: kill chain, complex network, key edge, Q-learning

CLC Number: