Date Added: May 2011
Web mining a hot research area of data mining can be classified into three main areas: Web Usage Mining, Web content Mining and Web Structure Mining. Web usage mining is a kind of web mining, which exploits data mining techniques to discover valuable information from navigation behavior of World Wide Web users. There are generally three tasks in Web Usage Mining: Preprocessing, Pattern analysis and Knowledge discovery. Preprocessing cleans log file of server by removing log entries such as error or failure and repeated request for the same URL from the same host etc..