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Overview

With the explosive growth of information sources available on the Web, it has become increasingly necessary for users to utilize automated tools in find the desired information resources, and to track and analyze their navigation patterns.

As many believe, it is Oren Etzioni first proposed the term of Web mining in [Oren 1996]. In this paper, he claimed the Web Mining is the use of data mining techniques to automatically discover and extract information from World Wide Web documents and services.

The authors of [Madria 1999] claims the Web involves three types of data: data on the Web (content), Web log data (usage) and Web structure data. Cooley classified the data type as content data, structure data, usage data, and user profile data in [Cooley 2000]. M.Spiliopoulou [Spilio 1999] categorized the Web mining into Web Usage Mining, Web text Mining and User modeling Mining.

In general, today the most recognized categories of the Web data mining are :

• Web Content Mining

• Web Structure Mining

• Web Usage Mining 

 For details, refer to [Borges 1999, Kosala, Madria 1999].