Consider supporting us on Patreon. Help us keep revisedeck free.
7.1. Expert systems
A subsection of Information Technology, 9626, through 7. Expert systems
Listing 10 of 25 questions
Tick the four statements which are true about the use of expert systems. A knowledge base is a key component of an expert system. Experts do not need to make a judgement; they just accept the results of the expert system. The user interface is used for both input and output. The rules base can contain IF… THEN statements. The inference engine searches the user interface to find possible solutions. An expert system is often used in car driving simulators. An expert system is not as accurate as a single expert would be. A knowledge engineer is employed to create an expert system. An expert system never needs updating. Expert systems always come up with exact solutions.
9626_s17_qp_11
THEORY
2017
Paper 1, Variant 1
View
Tick the four statements which are true about the use of expert systems. A knowledge base is a key component of an expert system. Experts do not need to make a judgement; they just accept the results of the expert system. The user interface is used for both input and output. The rules base can contain IF… THEN statements. The inference engine searches the user interface to find possible solutions. An expert system is often used in car driving simulators. An expert system is not as accurate as a single expert would be. A knowledge engineer is employed to create an expert system. An expert system never needs updating. Expert systems always come up with exact solutions.
9626_s17_qp_12
THEORY
2017
Paper 1, Variant 2
View
Insurance consultants have to make decisions about whether or not to accept a customer’s application for an insurance policy. They often use expert systems to help them assess the risk involved. Such a system would have a knowledge base, which consists of a database of facts and a rules base. Describe the other components of this expert system. Explain how this insurance expert system would be used by the consultant and how it would assess the risk.
9626_s22_qp_13
THEORY
2022
Paper 1, Variant 3
View
An expert system is being trialled for use as part of a study on animal identification. It has been set the following task. The goal is to decide the colour of a bird named Hortense. Two facts are provided: • she sings • she is 15 cm tall. The rule base contains the following three rules: • IF X is an ostrich – THEN X has a long neck • IF X sings and X is 15 cm tall – THEN X is a canary • IF X is a canary – THEN X is yellow The inference engine has concluded that Hortense is yellow. It has taken the facts as data and used the rules base to decide: Hortense is a canary Hortense is yellow Identify which type of chaining the inference engine used. Explain the reasoning the inference engine used.
9626_s23_qp_13
THEORY
2023
Paper 1, Variant 3
View
Questions Discovered
25