Expert System

Definition - What does Expert System mean?

An expert system is a computer program that is designed to emulate and mimic human intelligence, skills or behavior.

It is mainly developed using artificial intelligence concepts, tools and technologies, and possesses expert knowledge in a particular field, topic or skill.

Techopedia explains Expert System

An expert system is typically designed to provide capabilities similar to those of a human expert when performing a task. Moreover, it can be used to drive vehicles, provide financial forecasts or do things that human experts do.

An expert system usually has two core components:

  • Knowledge base -- This component consists of data, facts and rules for a certain topic, industry or skill, usually equivalent to that of a human expert.
  • Interference engine -- This component uses the facts and rules in the knowledge base to find and learn new knowledge or patterns.
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