Term
| What is a technical Expert? |
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Definition
| An expert is an experienced practitioner in a particular field for example a medical expert |
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Term
| What is the Knowledge base? |
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Definition
| The knowledge base holds knowledge about the domain. This can be stored as a series of IF-THEN-ELSE rules |
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Term
| What is factual knowledge? |
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Definition
| Factual information acquired by the knowledge engineers from the human experts, relating to the subject domain. This type of information would be widely agreed |
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Term
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Definition
| Heuristic knowledge is the less rigorous, more experiential and more judgmental knowledge of performance or what commonly constitutes the rules of "good judgement" or the art of "good guessing" in a field. A wisely used representation for the knowledge base is the rule or if /then statement |
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Term
| What is an inference engine? |
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Definition
| This software interrogates the knowledge base and draws inferences and conclusions based on the on the rules stored about the subject domain. The inference engine poses questions to the user and uses the answers provided by the user to determine a suitable response |
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Term
| What is a user interface? |
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Definition
| Allows a user to communicate with the system |
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Term
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Definition
| A piece of software which contains the structure for creating an expert system. It is described as an empty expert system without a knowledge base. The creator can enter appropriate rules and facts to generate an expert system |
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Term
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Definition
| Fuzzy logic is a generalization of standard logic. It is used for reasoning about inherently vague concepts such as tallness |
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Term
| Benefit of using an expert system |
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Definition
| Can quickly identify faults in equipment. For example systems to diagnose faults in cars can be directly connected to the cars for immediate diagnosis |
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Term
| Limitation of using an expert system |
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Definition
| Expert systems can make mistakes and they do not learn from them. Humans can learn from their mistakes |
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