基于人工免疫的网络入侵检测中疫苗算子的作用研究

在以前研究工作的基础上,将包含疫苗算子、变异算子和其它算子的免疫算法与人工免疫中的负选择算法结合在一起,实现检测器种群的进化,目的是加快种群的亲和力成熟进程和提高网络入侵检测效率。详细地给出了疫苗自适应提取算法和疫苗算子算法,建立了基于免疫算法和负选择算法的模型及算法来实现网络入侵检测。分别设计了基于克隆选择算法的和基于免疫算法的网络入侵检测实验。实验结果表明,含有免疫算子的免疫算法加快了检测器种群亲和力成熟的进程,收敛速度更快,随着进化代数的增加检测率总体呈上升趋势。而基于克隆选择算法的网络入侵检测则出现了检测器种群亲和力成熟进程较慢,并随着进化代数的增加检测率呈现轻微退化和较长时间停滞不前的现象。

Investigating the Role of Vaccine Operator in Artificial Immune System for Network Intrusion Detection

On the basis of author's previous research works,this paper integrates Immune Algorithm (IA) consisting of vaccine operator,mutation operator and other operators with Negative Selection Algorithm (NSA),called IA-NSA algorithm,to perform evolution of detector population,whose purposes are to quicken the process of affinity maturation and improve the efficiency of network intrusion detection.The algorithms of vaccine operator and adaptive extracting vaccines were given in detail.A novel network intrusion dete...