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Expert Systems Lecture 5: Inference Engine

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Expert Systems Lecture 5: Inference Engine

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Questions and Answers

What does an inference engine represent?

The way to analyze data

The way to solve a particular problem (correct)

The way to design an expert system

The way to create a knowledge base

Which type of inference is data-driven?

Depth-first search

Backward chaining

Breadth-first search

Forward chaining (correct)

What is the first step in the forward chaining process?

Execute the chosen rule

Match the premise patterns of the rules against elements in the working memory (correct)

Return to step 1

Stop if a terminating condition is reached

What is the main difference between forward and backward chaining?

Whether the process is data-driven or goal-driven Signup and view all the answers

What happens when a terminating condition is reached in forward chaining?

The system stops Signup and view all the answers

What is the purpose of the working memory in forward chaining?

To store the case-based facts and derived facts Signup and view all the answers

What is the loan amount for a low-risk borrower?

4X annual income at a 10% interest rate Signup and view all the answers

What is the credit score range for a medium-risk borrower?

600-750 Signup and view all the answers

What is the interest rate for a high-risk borrower?

16% Signup and view all the answers

What is John's credit score?

780 Signup and view all the answers

What is the loan amount for John based on his credit score?

4X annual income Signup and view all the answers

What conflict resolution strategy prefers more strongly stated production rules?

Conflict resolution by specificity Signup and view all the answers