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Expert system - Expert systems versus problem-solving systems | | Expert system - Expert systems versus problem-solving systems: Encyclopedia II - Expert system - Expert systems versus problem-solving systems | | The principal distinction between expert systems and traditional problem solving programs is the way in which the problem related expertise is coded. In traditional applications, problem expertise is encoded in both program and data structures.
In the expert system approach all of the problem related expertise is encoded in data structures only; none is in programs. Several benefits immediately follow from this organization.
An example may help contrast the traditional problem solving program with the expert system approach. Th ...
See also:Expert system, Expert system - Types of problems solved by expert systems, Expert system - Application, Expert system - Expert systems versus problem-solving systems, Expert system - Individuals involved with expert systems, Expert system - The end user, Expert system - The knowledge engineer, Expert system - The inference rule, Expert system - Chaining, Expert system - Confidences, Expert system - The user interface, Expert system - Procedure node interface, Expert system - How it works, Expert system - Prominent expert systems, Expert system - Bibliography | | | Expert system, Expert system - Application, Expert system - Bibliography, Expert system - Chaining, Expert system - Confidences, Expert system - Expert systems versus problem-solving systems, Expert system - How it works, Expert system - Individuals involved with expert systems, Expert system - Procedure node interface, Expert system - Prominent expert systems, Expert system - The end user, Expert system - The inference rule, Expert system - The knowledge engineer, Expert system - The user interface, Expert system - Types of problems solved by expert systems, Artificial intelligence, Artificial neural network, Fuzzy logic, Heuristic (computer science), Machine learning, Clinical decision support system, Connectionist expert system | | |
| | | Expert system: Encyclopedia II - Expert system - Expert systems versus problem-solving systems
Expert system - Expert systems versus problem-solving systems
The principal distinction between expert systems and traditional problem solving programs is the way in which the problem related expertise is coded. In traditional applications, problem expertise is encoded in both program and data structures.
In the expert system approach all of the problem related expertise is encoded in data structures only; none is in programs. Several benefits immediately follow from this organization.
An example may help contrast the traditional problem solving program with the expert system approach. The example is the problem of tax advice. In the traditional approach data structures describe the taxpayer and tax tables, and a program in which there are statements representing an expert tax consultant's knowledge, such as statements which relate information about the taxpayer to tax table choices. It is this representation of the tax expert's knowledge that is difficult for the tax expert to understand or modify.
In the expert system approach, the information about taxpayers and tax computations is again found in data structures, but now the knowledge describing the relationships between them is encoded in data structures as well. The programs of an expert system are independent of the problem domain (taxes) and serve to process the data structures without regard to the nature of the problem area they describe. For example, there are programs to acquire the described data values through user interaction, programs to represent and process special organizations of description, and programs to process the declarations that represent semantic relationships within the problem domain and an algorithm to control the processing sequence and focus.
The general architecture of an expert system involves two principal components: a problem dependent set of data declarations called the knowledge base or rule base, and a problem independent (although highly data structure dependent) program which is called the inference engine. See more in How it Works chapter.
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 Adapted from the Wikipedia article "Expert systems versus problem-solving systems", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki |
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