The performance efficiency of a network intrusion detection system ( nids ) is dominated by pattern matching algorithm 摘要网络入侵检测系统的效率取决于模式匹配算法选择。
The paper introduces this system ' s structure , theory , software designing ideology , and detailed relates optimizing problem of arithmetic choosing 本文介绍了该系统的结构、原理、软件设计思想。并详细地阐述了算法选择的优化问题。
Bp algorithm can establish the high nonlinear mapping among the object and seismic attributes . ga algorithm can select the survival of the fittest 神经网络可以建立属性参数与预测目标之间的高度非线性映射,而遗传算法选择适者生存。
The euclidean distance is usually chosen as the similarity measure in the conventional k - means clustering algorithm , which usually relates to all attributes 传统的k -均值算法选择的相似性度量通常是欧几里德距离的倒数,这种距离通常涉及所有的特征。
Some critical problems in system implementation , such as the design of the database , the rules for group decision making , the choosing of algorithm , etc , are discussed with proposition 对系统实施中的一些重要问题,如数据库设计、群决策机制、算法选择等进行了分析,提出建议。