Chapter 7 (Expert Systems)

Question 1

what is an expert system

Answer 1

• uses a set of rules/ knowledge to provide a diagnosis

- used to solve complex problems

Question 2

how does an expert system gather data

Answer 2

• by asking the user questions about their problems

Question 3

3 main components of an expert system

Answer 3

1- the knowledge base
2- the inference engine
3- the user interface

Question 4

Component of an Expert System -

knowledge base

Answer 4

1) factual

2) heuristic (acquired through a range of experiences and reasoning. )

Question 5

ADVANTAGES of expert systems

Answer 5

• outside a user’s knowledge and experience.
• accessed on a 24/7 basis.
• no errors, no forget to ask Q or a knowledge
• reduce the time taken

Question 6

disadvantageS of expert systems

Answer 6

• no common sense/ creativity to their solution
• only as good as the data and rules they are given.
• not able to automatically adapt to changing environments
• expensive to produce