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Questions and Answers
What is the primary function of the knowledge base in an expert system?
What is the primary function of the knowledge base in an expert system?
- To store facts used to match against rules
- To provide a set of rules for problem solving (correct)
- To execute actions based on satisfied conditions
- To specify relations and recommendations
What is the structure of each rule in a rule-based expert system?
What is the structure of each rule in a rule-based expert system?
- WHERE (condition) RESULT (action)
- WHEN (condition) DO (action)
- IF (action) THEN (condition)
- IF (condition) THEN (action) (correct)
What happens when the condition part of a rule is satisfied?
What happens when the condition part of a rule is satisfied?
- The rule is stored in the database for future use
- The rule is said to fire and the action part is executed (correct)
- The rule is modified to fit new conditions
- The rule is deleted from the knowledge base
What is the primary function of the database in an expert system?
What is the primary function of the database in an expert system?
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What is the purpose of the IF (condition) part of a rule in a rule-based expert system?
What is the purpose of the IF (condition) part of a rule in a rule-based expert system?
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Study Notes
Expert Systems
- A knowledge base in an expert system contains domain knowledge useful for problem-solving.
Representation of Knowledge
- In a rule-based expert system, knowledge is represented as a set of rules.
- Each rule has an IF (condition) THEN (action) structure.
Rule Firing
- When the condition part of a rule is satisfied, the rule is said to fire.
- When a rule fires, the action part is executed.
Database
- The database includes a set of facts.
- The facts in the database are used to match against the IF (condition) parts of rules stored in the knowledge base.
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Description
This quiz covers the basics of rule-based expert systems, including the knowledge base, rule representation, and firing mechanisms.
