攻击分类研究对于系统地分析计算机系统脆弱性和攻击利用的技术方法有着重要的意义，这有助于构造高效的入侵检测方法。

The study of attack classification has a significant role to analyze computer system vulnerability and technique used for attack and can help to build effective detection methods.

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然而，现有的脆弱性检测技术和检测系统存在无法跨网跨拦截器检测、瓶颈效应等问题。

The existing technology and system of vulnerability detecting, however, have difficulties on dealing with network crossing, interceptor crossing and bottle-neck effect, etc.

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