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Webopedia.com: Artificial Intelligence
Includes a concise definition of artificial intelligence and an explanation of the different areas in which artificial intelligence is used.
Stanford University
Stanford University: What Is Artificial Intelligence?
An overview of artificial intelligence (AI), the different branches of AI, applications of artificial intelligence, and the like.
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E Xpertise2 go.com: Introduction to Expert Systems
This tutorial shows you how a computer-based expert system emulates the behavior of a human advisor, presents terminology unique to the field, and introduces the activities that must be accomplished to build expert systems.