Expert Systems are rule-based AI programs that encode domain-specific knowledge in a knowledge base and apply logical inference to emulate the decision-making capability of human experts, enabling decision support, diagnosis, and configuration in specialised domains.
Semantic Classification
Content
Definition
Expert systems are computer programs that emulate the decision-making ability of human experts in specific domains. They consist of a knowledge base containing domain-specific information and an inference engine that applies logical rules to derive conclusions, make recommendations, or solve complex problems within their specialized area of expertise.
Architecture Components
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Knowledge base (facts and rules)
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Inference engine (reasoning mechanism)
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User interface
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Explanation facility
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Knowledge acquisition module
Historical Significance
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MYCIN (medical diagnosis)
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DENDRAL (chemical analysis)
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XCON (computer configuration)
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Peak popularity in 1980s-1990s
Modern Applications
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Medical diagnosis support
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Financial planning
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Quality control
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Fault diagnosis
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Configuration systems