摘要
在研究和分析入侵检测系统中Wu_Manber算法的基础上,提出了一种改进的Wu_Manber算法。改进后的算法结合QS算法的思想,使算法在搜索阶段移动距离增大。同时对改进前后的Wu_Manber算法进行实验对比分析,结果表明,在英文或中文文本中,改进的Wu_Manber算法性能更优越,能更快速准确地检测到入侵行为。
On the basis of analyzing and studying existing Wu_Manber algorithm in intrusion detection system, an improved Wu_Manber algorithm is designed. This algorithm combines the notion of Qs algorithm and expands its shift distance to maximum in searching stage. At the same time, some experiments were made to compare the performances of the traditional and improved Wu_Manber algorithms. The experimental results shown that the improved Wu_Manber algorithm performs better in both English and Chinese text, and can detect intrusion faster and more accurately.
出处
《计算机应用与软件》
CSCD
北大核心
2008年第8期114-116,125,共4页
Computer Applications and Software
