Chapter: Artificial Intelligence

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Expert System

An expert system may be viewed as a computer simulation of a human expert.

EXPERT SYSTEM:

 

An expert system may be viewed as a computer simulation of a human expert. It can also be defined as a computer program that simulates the judgment and behaviour of a human or an organization that has expert knowledge and experience in a particular field. Typically such a system contains a knowledge base containing accumulated experience and a set of rules for applying the knowledge base to each particular situation that is described to the program. Expert systems also use human knowledge to solve problems that normally would require human intelligence. These expert systems represent the expertise knowledge as data or rules within the computer. These rules and data can be called upon when needed to solve problems. Books and manual guides have a tremendous amount of knowledge but a human has to read and interpret the knowledge for it to be used.

 

A system that uses human knowledge captured in a computer to solve problems that ordinarily require human expertise. A computer program designed to model the problem solving ability of a human expert. Expert systems make extensive use of specialized knowledge to solve problems at the level of a human expert. An expert is a person who has expertise in a certain area i.e. the expert has knowledge or special skills that are not known or available to most people. An expert can solve problems that most people cannot solve them much more efficiently. Thus expert system technology may include special expert system languages, programs and hardware designed to aid in the development and execution of expert systems. The knowledge in expert systems may be either expertise or knowledge that is generally available from books, magazines and knowledgeable persons.

 

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