在分析 Web日志挖掘的困难及对策的基础上 ,给出了一个简单的 Web日志挖掘系统( SWLMS)的体系结构 .具体介绍了 SWLMS中日志的预处理过程 ,包括数据净化、用户识别、会话识别、路径补充的主要任务及其实现 ,并着重介绍了预处理之后的序列模式识别过程和算法 ,包括最大向前路径的识别和频繁遍历路径的发现 ,并给出了实验结果 Based on the analysis of the difficulties and countermeasures of Web log mining, a simple architecture of Web log mining system (SWLMS) is given, and the preprocessing of log in SWLMS is introduced in detail, including data purification, user identification, session identification , The main task of path supplement and its implementation, and emphatically introduces the sequence pattern recognition process and algorithm after pretreatment, including the identification of the maximum forward path and the discovery of frequent traversal paths, and gives the experimental results