随着互联网的发展,网络信息量不断增长,Web日志的数据量也在飞速增长,在这样大量的日志中蕴含了非常重要的信息,将数据挖掘技术运用在Web日志的处理中就能发现日志中潜藏的这些信息。本文介绍了Web日志挖掘中数据预处理的方法,论述了数据预处理阶段的主要步骤和方法 With the development of the Internet, the amount of information in the network is constantly increasing, and the amount of data in Web logs is increasing rapidly. In such a large number of logs, very important information is contained. By applying data mining technology to the processing of Web logs, logs can be found In the hidden information. This paper introduces the method of data preprocessing in web log mining, and discusses the main steps and methods of data preprocessing