As a method of knowledge discovery, data mining has been widely used, and was the most active domain of database. Web mining is to use the traditional data mining technologies to extract information and knowledge in the Web environment. The web usage mining is the most wide used method, which is used in the field of e-commerce, internet ads, intelligent recommendation system, internet marketing, and intelligent decision support. A good model of web mining is the key to the success of web usage mining, this ...