摘要： 根据生物免疫原理，提出了一个新的动态入侵检测模型，并对模型的体系结构作了详细的描述，包括自体的演化、动态耐受和动态免疫记忆过程的数学描述，同时提出基于LRU算法的记忆检测器动态降职机制。实验表明该模型具有更好的动态性和有效性。

关键词: 入侵检测, 人工免疫, 动态降职, 否定选择

Abstract: Based on the research of the biological immune system principle, an innovative intrusion detection immune system model is presented and analyzed in full. The mathematic description model of the dynamic self, dynamic immune tolerance and immune memory is established, and a memory detector dynamic demotion mechanism based on the LRU algorithm is provided. The experiment results show that the proposed intrusion detection model has a better adaptability and validity than the traditional method.

Key words: Intrusion detection, Artificial immune, Dynamic demotion, Negative selection