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Introduction - rule-based systems
Why are rule-based systems important?
History
What is a rule-based system?
Expert systems
Examples of expert systems
The ``Classical'' expert systems
Other expert systems
How the inference engine works
Forward chaining
Backward chaining
Longer example of backward chaining
Longer example of forward chaining
More complicated inference methods
Logic programming
**Inference in Prolog
How expert systems explain themselves
Where do the rules come from?
Rules by machine learning
What's wrong with expert systems?
Maintaining large knowledge bases
Strategy and questioning
Explanations
Shallow reasoning
Lack of common sense, and restriction to narrow domains
No learning
Systems aren't adaptable
Rule-based systems and some themes in AI
Backward chaining systems have goals and subgoals
Rule-based systems and good representations
Expert systems and productive laziness
Data-directed vs goal-directed
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Jocelyn Ireson-Paine
Wed Feb 14 23:39:25 GMT 1996