Netinfo Security ›› 2020, Vol. 20 ›› Issue (2): 14-21.doi: 10.3969/j.issn.1671-1122.2020.02.003

• 技术研究 • Previous Articles     Next Articles

Network Intrusion Detection Based on Improved MajorClust Clustering

LUO Wenhua(), XU Caidian   

  1. Cyber Crime Investigation Department, Criminal Investigation Police University of China, Shenyang 110035, China
  • Received:2019-08-15 Online:2020-02-10 Published:2020-05-11

Abstract:

Based on the supervised intrusion detection algorithm, the intrusion detection model cannot be accurately trained for network access connections without category marking or identification features. Therefore, an unsupervised intrusion detection algorithm based on improved main class clustering algorithm is proposed, which can dynamically improve the MajorClust clustering algorithm, with the sum of the ungrouped neighbors and the smallest point as the initial cluster center, according to the cluster Center and other conventional distance distribution characteristics, the spatial distribution curve between points is fitted by the least squares principle, the inflection point value of the curve is used as the clustering slice, the cluster abstraction is broken into clusters, and the network behavior data is realized. Automatic clustering and optimization. MajorClust algorithm, k-means algorithm and unsupervised intrusion detection model of DBSCAN algorithm, based on the optimization process, use NSL-KDD dataset to analyze and compare the detection results. The experimental results show that the MajorClust algorithm has a significant advantage in terms of its intrusion detection performance and effect stability.

Key words: intrusion detection, MajorClust, NSL-KDD, inflection radius

CLC Number: