计算机科学 ›› 2016, Vol. 43 ›› Issue (Z6): 335-338.doi: 10.11896/j.issn.1002-137X.2016.6A.080
屈洪春,王帅
QU Hong-chun and WANG Shuai
摘要： 为了提高入侵检测系统的检测率并降低误报率,将误用检测技术和异常检测技术进行结合,以克服采用单一技术的缺陷。采用改进的进化神经网络作为检测引擎,首先,通过对遗传算法进行改进,弥补实数编码全局寻优能力差的缺陷,且降低计算的复杂度,提高进化收敛速度；然后,将改进的遗传算法和BP神经网络的LM算法进行结合,进一步克服神经网络学习阶段训练速度慢和易陷入局部最优的缺点,进而提高神经网络的分类能力和模式识别能力。采用 KDDCUP99数据集作为训练与测试数据集进行实验,结果表明,基于改进的进化神经网络建立的混合入侵检测模型在数据特征规则的提取速度、检测精度以及识别新的攻击类型方面有明显改善。
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