The college learning network security courseware, teachers and students need to be able to download.

说明：大学期间学习网络安全的课件，老师同学如果需要可以下载使用。

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Intrusion Detection System, new domain of Network Security, is a core research area in dynamic Information Security, but it still has many problems, especially in self-completing and self-learning.

入侵检测系统是目前安全领域较新课题，是动态安全领域的核心，但目前仍然存在很多问题，特别是具有自适应能力、能自我学习的入侵检测系统还不完善。

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Finally, basing on the core idea of improved association rule learning algorithms, this thesis designs and achieves simple models of network security audit.

最后根据改进的关联规则学习算法的核心思想，对网络安全审计模型进行了设计，并给予实现。

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