网络入侵检测系统的虚警率与漏警率之和即为网络入侵检测系统的误警率。目前,误警是网络入侵检测系统性能表现最突出的问题。研究报告显示,高误警率是用户不愿意选用网络入侵检测系统,或者即使选用也关闭其重要元件的首要原因。网络入侵检测系统的误警极大地损害了网络入侵检测 Network Intrusion Detection System false alarm rate and the sum of leakage alarm rate is the network intrusion detection system of false alarm rate. At present, false alarm is the most outstanding performance of network intrusion detection system. The study shows that high false-positive rates are the primary reason users are reluctant to use network intrusion detection systems, or even turn off their key components even if they choose. Network intrusion detection system, the false alarm greatly undermine the network intrusion detection