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Definition of Expert system

Babylon English

program which simulates the thought process of an expert in a certain field (using algorithms of artificial intelligence)
Expert system Definition from Language, Idioms & Slang Dictionaries & Glossaries
hEnglish - advanced version

expert system
a computer program that contains a knowledge base and a set of algorithms or rules that infer new facts from knowledge and from incoming data.

Expert system Definition from Business & Finance Dictionaries & Glossaries
Raynet Business & Marketing Glossary
software used to interpret massive amounts of data and pinpoint findings that require immediate decision-making action.
Copyright © 2001, Ray Wright
Expert system Definition from Science & Technology Dictionaries & Glossaries
Telecommunication Standard Terms
A computer system that facilitates solving problems in a given field or application by drawing inference from a knowledge base developed from human expertise. Note 1: The term "expert system " is sometimes used synonymously with "knowledge-based system," although it is usually taken to emphasize expert knowledge. Note 2: Some expert systems are able to improve their knowledge base and develop new inference rules based on their experience with previous problems.
Expert system Definition from Computer & Internet Dictionaries & Glossaries
Internet Glossary
A computer application that performs a task that would otherwise be performed by a human expert. For example, there are expert systems that can diagnose human illnesses, make financial forecasts, and schedule routes for delivery vehicles. Some expert systems are designed to take the place of human experts, while others are designed to aid them.

Expert systems are part of a general category of computer applications known as artificial intelligence. To design an expert system, one needs a knowledge engineer, an individual who studies how human experts make decisions and translates the rules into terms that a computer can understand.

Expert system Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
In artificial intelligence, an expert system is a computer system that emulates the decision-making ability of a human expert. Expert systems are designed to solve complex problems by reasoning about knowledge, represented primarily as IF-THEN rules rather than through conventional procedural code. The first expert systems were created in the 1970s and then proliferated in the 1980s. Expert systems were among the first truly successful forms of AI software.

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Expert system Definition from Law Dictionaries & Glossaries
President's DNA Initiative Glossary
A software program or set of software programs designed to rapidly process data without human intervention.
  
Source: The President's DNA Initiative ( About )