PAST QUESTIONS - CIT 474 OCTOBER/NOVEMBER 2014 EXAMINATION

14-16 AHMADU BELLO WAY, VICTORIA ISLAND LAGOS SCHOOL OF SCIENCE AND TECHNOLOGY OCTOBER/NOVEMBER 2014 EXAMINATION

COURSE CODE: CIT 474

COURSE TITLE: Introduction to Expert System

TIME ALLOWED: 3 Hours

INSTRUCTION: Answer any five (5) questions.

1. A knowledge-based computer program that exhibits, within a specific domain, a degree of expertise in problem solving that is comparable to that of a human expert. Individuals who interact with this system are assigned various role As such this system has its strengths and drawbacks. List and briefly explain these Roles of Individuals who interact with such system. Also briefly discuss the drawbacks of the system. (14 Marks)

2. The rules  composed  by subject  matter experts  must  be translated  and  stored  in  the Knowledge-base before they can be exec Rules are transformed into machine- readable forms by the Rule Translator. Using a well labeled diagram illustrate and briefly explain how the rule translator are generated from grammar (14 Marks)

3. The Rule Engine executes Knowledge-base rule Illustrate using a well labeled diagram the steps involved in the execution of the rules and state rule actions which may be included. (7 Marks)

A knowledge-based computer program that exhibits, within a specific domain, a degree of expertise in problem solving that is comparable to that of a human expert. These systems are typically  written  in  special  programming  languages  which  have  certain  distinguishing

characteristics from other programming languages. List any seven of such characteristics

(7 Marks)

4. Highlight any four advantages of an interface which has the ability to interact with users using human language such as English, as opposed to computer language, a command line interface, or a graphical user interface (4 Marks)

State and briefly discuss the two main classes of Programming languages,

Procedural

Declarative

5. Using a well labeled diagram illustrate the system which would ask a series of questions designed to emulate the thinking of an expert in the field of infectious disease  and from the responses to these questions give a list of possible diagnoses, with probability, as well

as recommend treatment. What is the system called?   List and briefly discuss the two major components which make up this system. (14 Marks)

6. What is a Blackboard System? (1 Mark)

Define a rule-based expert system (1 Mark)

Highlight and illustrate using a well labeled diagram the (8 Marks)

components of a blackboard system.

Basic Blackboard system

Highlight any four conditions in which a demon can be triggered (4 Marks)

7. Define a rule-based expert system (1 Mark)

Highlight any four conditions in which a demon can be triggered (4 Marks)

Using a well labeled diagram illustrate and discuss the Architecture of Hearsay-II.

 (9Marks)