Data Mining can be viewed as a result of the natural evolution of information technology. Simply stated, data mining refers to extracting or mining knowledge from large amounts of data. Data mining is also a synonym for another popularly used term, Knowledge Discovery in Database, or KDD.
Frawley has defined Data mining "The nontrivial extraction of implicit, previously unknown, and potentially useful information from data" in [Frawley 1992]. It uses machine learning, statistical and visualization techniques to discovery and present knowledge in a form which is easily comprehensible to humans.
The Web is a huge, diverse and dynamic collection of interlinked hypertext documents. There are about 300 million pages on the Web today with about 1 million being added daily. Furthermore, it is widely believed that 99% of the information on the Web is of no interest to 99% of the people.
We are drowning in data, but starving for knowledge.
Web Mining is the application of data mining technology on the Web. The key difference between these web mining technology and earlier data mining technology is that the former take hyperlink information into account.
Created by Lan Man
Last Modified: Nov 11, 2002