Genetic algorithm optimization based polymorphic detector generating method

Abstract

A genetic algorithm optimization based polymorphic detector generating method specifically includes steps of 1, dividing a normalized searching space layer by layer and setting the dividing fine degree as three-time iteration, turning to the next step when the dividing fine degree is achieved; 2, performing matching operation on a hyperrectangle area obtained through division and a training sample and taking the hyperrectangle area as mature hyperrectangle detector if the hyperrectangle area is not matched with the training sample; 3, applying a genetic evolution mechanism for optimizing a traditional negative selection algorithm so as to generate an optimal sphere detectors in a one-by-one manner; 4, taking the hyperrectangle detector and the sphere detector as a mature detector set for implementing detector generation. According to the above steps, the detection accuracy and efficiency are improved through the introduction of the genetic algorithm and the hyperrectangle detectors are generated by adopting a method dividing space layer by layer, so that the data based abnormal detector generation method is obtained. By adopting the method, the evolution algorithm searching space is reduced and the average coverage rate of the mature detector set is improved.

Description

technical field [0001] The invention relates to a method for generating a multi-morphology detector based on genetic algorithm optimization, and belongs to the technical fields of artificial intelligence immune classification technology and data-based abnormality detection technology. Background technique [0002] Due to the increase in the number of satellites and the increasing complexity of the satellite system, its on-orbit failure rate has increased significantly, and it has been difficult to ensure the healthy operation of satellites only by relying on traditional signal processing and analysis methods based on expert experience. During the operation of the satellite, the measurement and control system periodically transmits on-orbit telemetry data to the ground measurement and control center. These data are the only reference basis for the monitoring center to judge the status of satellites in orbit. Whether it is abnormal or not is closely related to whether the sate...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the traditional artificial immune detector generation algorithm does not control the coverage of detectors, resulting in a large number of redundant detectors in the detection accuracy and low efficiency problems

Images