摘要： 在分析现有入侵检测技术的基础上，结合模糊数学和层次分析法，提出了一种综合评判入侵检测系统性能的新方法，把评估的主观因素限制在很小的范围内，提高了评判结果的准确度和可信度。并已通过实验验证，表明该方法是有效的。

关键词: 网络安全；入侵检测系统；模糊综合评判；层次分析法

Abstract: The current techniques of intrusion detection are first analyzed. Then combining the methods of fuzzy mathematics and hierarchical analysis, the authors provide a novel approach to comprehensively evaluating the performance of intrusion detection systems. This approach is applied to restrict the subjective factors that influence the evaluation and thus can improve the accuracy and reliability of the evaluation result. And the effectiveness of this measurement is verified by an experiment

Key words: Network security; Intrusion detection system; Fuzzy comprehensive evaluation; Hierarchical analysis