Netinfo Security ›› 2021, Vol. 21 ›› Issue (2): 53-60.doi: 10.3969/j.issn.1671-1122.2021.02.007

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Research on Intrusion Detection of Industrial Control System Based on Improved Whale Algorithm

WANG Huazhong(), CHENG Qi   

  1. Key Laboratory of Advanced Control and Optimization for Chemical Processes of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
  • Received:2020-09-19 Online:2021-02-10 Published:2021-02-23
  • Contact: WANG Huazhong E-mail:hzwang@ecust.edu.cn

Abstract:

Aiming at the problem of long optimization time and low classification accuracy of industrial control intrusion detection model, an improved whale algorithm(IWOA) is proposed to optimize the parameters in SVM intrusion detection model. Firstly, the improved whale optimization algorithm introduces the adaptive step size and congestion factor of the AFSA. The adaptive step size can balance the ability of the whale algorithm to explore and accelerate the convergence speed. The congestion factor can avoid the premature phenomenon of the algorithm caused by overcrowding of the population search location. Secondly, the improved Gaussian mutation operator is added to the local search mechanism to make the algorithm jump out of the local optimal region. Applying it to the SVM intrusion detection model, the simulation on the natural gas pipeline data set of the industrial control system proves that the model detection accuracy rate and detection speed are significantly improved.

Key words: industrial control system, intrusion detection, whale optimization algorithm, artificial fish swarm algorithm, Gaussian mutation operator

CLC Number: