expert system


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expert system,

a computer system or program that uses artificial intelligenceartificial intelligence
(AI), the use of computers to model the behavioral aspects of human reasoning and learning. Research in AI is concentrated in some half-dozen areas.
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 techniques to solve problems that ordinarily require a knowledgeable human. The method used to construct such systems, knowledge engineering, extracts a set of rules and data from an expert or experts through extensive questioning. This material is then organized in a format suitable for representation in a computer and a set of tools for inquiry, manipulation, and response is applied. While such systems do not often replace the human experts, they can serve as useful adjuncts or assistants. Expert systems have been applied to chemistry, geology, genetic engineering, medicine, and pharmacology.

expert system

[′ek‚spərt ‚sis·təm]
(computer science)
A computer system composed of algorithms that perform a specialized, usually difficult professional task at the level of (or sometimes beyond the level of) a human expert.

expert system

(artificial intelligence)
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.

An expert system is an artificial intelligence application that uses a knowledge base of human expertise to aid in solving problems. The degree of problem solving is based on the quality of the data and rules obtained from the human expert. Expert systems are designed to perform at a human expert level. In practice, they will perform both well below and well above that of an individual expert.

The expert system derives its answers by running the knowledge base through an inference engine, a software program that interacts with the user and processes the results from the rules and data in the knowledge base.

Expert systems are used in applications such as medical diagnosis, equipment repair, investment analysis, financial, estate and insurance planning, route scheduling for delivery vehicles, contract bidding, counseling for self-service customers, production control and training.

expert system

An artificial intelligence (AI) application that uses a knowledge base of human expertise for problem solving. Its success is based on the quality of the data and rules obtained from the human expert. In practice, expert systems perform both below and above that of a human.

The expert system derives its answers by running the knowledge base through an inference engine, which is software that interacts with the user and processes the results from the rules and data in the knowledge base.

Examples are medical diagnosis, equipment repair, investment analysis, financial, estate and insurance planning, vehicle routing, contract bidding, production control and training. See chatbot, virtual assistant, AI and EPSS.


Expert System
References in periodicals archive ?
In order to construct an expert system which can process information like an expert, the first area to develop is the Knowledge Acquisition subsystem.
Expert systems can preserve the diagnostic knowledge of a plant's most experienced workers after they leave or retire.
Table : Table 2 Rules and Results from an Expert System (ES)
This expert system will relate items in the various data bases to specific individuals and entities and will give the inquiring agent information on all their relationships.
Finally, potential expert system applications can be evaluated in terms of their position in the value chain (i.
Expert system shows the potencial hazards (low, increased or high) and gives recommendations for safety using of the metalworking fluids (e.
A case-based expert system uses an inductive method to conduct expert system reasoning.
The power of expert systems that use risk management rules of thumb can be illustrated by the construction of a simple expert system that aids in the selection of retentions.
Despite all the promises and research and vulture capital doled out in the 1980s, artificial intelligence (Al) and expert systems were poor substitutes for "liveware"--people, especially the experts that expert systems were to replicate.
It is an expert system that involves rules to identify the defect by virtue of its appearance.
As part of the test-ordering process, the expert system must automatically handle reflex testing protocols preapproved by the medical staff for either ordering additional test(s) when preliminary screening test results indicate or canceling a test deemed useless by preliminary screening tests.
Initially, the expert system was programmed to access answers to key questions and to mimic the advice identified through this process.

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