Production System and Expert System

Question 1

What are the components of the production system?

Explain how it works.

Answer 1

• A set of production rules
• Working memory
• The recognize-act control cycle

Question 2

Explain the difference between forward-chaining and backward-chaining expert system

Answer 2

-

Question 3

What is a typical architecture of an expert system?

Answer 3

• Knowledge-base (rules)
• Inference engine(agenda)
• Working memory (facts)
• Explanation ability
• Knowledge Acquisition ability
• User Interface

Question 4

What is conflict resolution?

Answer 4

Choosing a production rule in the conflict set to fire

Question 5

What are some conflict resolution strategies?

Answer 5

• Choose the first rule that matches the content of working memory
• Refraction: Let the rule fired only once
• Recency: Given preference to the rules that match the working memory elements that most recently added
• Specificity: Given preference to more specific rules over the general ones