Elaine Rich “Artificial intelligence is the study of how to make computers do things at which, at the moment, people are better.”


Avron Barr and Edward A.Feigenbaum “Artificial intelligence is the part of computer science concerned with designing intelligent computer systems, that is, systems that exhibit the characteristics we associate with intelligence in human behavior.”


Bruce G.Buchanan and Edward H.Shortliffe “Artificial intelligence is that branch of computer science dealing with symbolic, non-algorithmic methods of problem solving.”


Brattle Research Corporation “In simplified term, artificial intelligence works with pattern-matching methods which attempt to describe objects, events, or processes in terms of their qualitative features and logical and computational relationships.”


Bruce G.Buchanan “Artificial intelligence is the branch of computer science that deals with ways of representing knowledge using symbols rather than numbers and with rules-of-thumb, or heuristic, methods for processing information.”


Dartmouth Conference “Artificial intelligence is a field of study in computer science that pursues the goal of making a computer reason in a manner similar to humans.”


David W.Rolston “Artificial intelligence is the computer-based solution of complex problems through the application of processes that are analogous to the human reasoning process.”


Charniak and McDermontt “Artificial intelligence is study of mental faculties through the use of computational models. ”


Luger and Stubblefield “Artificial intelligence is branch of computer science that is concerned with the automation of intelligent behavior.”


Winston “Artificial intelligence is study of computations that make it possible to perceive, reason, and act.”


General Definition : Artificial Intelligence (Engineering Approach)

Schalkoff (1990) “AI is a field of study that seeks to explain and emulate intelligent behavior in terms of computational processes.”