In order to resolve the problem of high false positive rate of traditional intrusion detection algorithm, the hybrid algorithm which combines Improved Particle Swarm Optimization (IPSO) with Back Propagation (BP) neural network algorithm is used in computer network intrusion detection in this study. Based on the characteristics of the local precise search of the BP networks and the global search of the improved particle swarm optimization algorithm, this method optimizes the weight of the BP networks, conquers the disadvantages of the BP networks that are easily trapped in the local extremum T...
