为了帮助您将这些技术与刚才提到的攻击类别联系起来，我们将使用以下图形解释各种技术。

To help you tie these techniques back to the classes of attack just presented, for each technique we will include the following graphic.

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算法采用有向图来表示攻击类别及其逻辑关系，按照前向匹配和缺项匹配的方式对报警进行关联。

In this algorithm, an extended directed graph is used to show attack types and their relations, while the correlation is performed according to the method of forwards matching and absent matching.

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例如，如果这个消息类别是有关安全性方面的，那么如果检测到字典攻击，就应该产生一条警告消息。

For example, if the message category is related to security, a warning message should be produced if a dictionary attack is detected.

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