Expert Systems and Knowledge Engineering

The video tutorial discusses the roles of human experts and knowledge engineers in developing expert systems. It explains how human experts provide the rules based on experience, while knowledge engineers translate these rules into a format that the system can understand. The tutorial also covers the backward chaining process, emphasizing the importance of understanding the order of rules and the role of the inference engine. Additionally, it highlights the processing of data within expert systems, focusing on the database of facts and the logic involved.

What is the primary role of a human expert in the development of an expert system?

• To write the code for the system

• To provide the knowledge and rules based on experience

• To manage the database of facts

• To test the system for errors

Which of the following best describes the human expert's contribution to the expert system?

• They design the user interface

• They determine the rules based on years of experience

• They ensure the system is user-friendly

• They update the system's software

What is one of the key tasks of a knowledge engineer?

• To create the rules from scratch

• To translate the expert's knowledge into a coded format

• To decide who gets a security license

• To conduct interviews with applicants

How does a knowledge engineer interact with a human expert?

• By teaching them how to code

• By extracting and documenting their knowledge

• By conducting surveys

• By managing their schedule

What is backward chaining in the context of an inference engine?

• Starting with data and moving to a decision

• Ignoring the knowledge base

• Starting with a decision and working back to the data

• Randomly selecting rules to apply

Which component of an expert system is responsible for backward chaining?

• The database of facts

• The user interface

• The inference engine

• The explanation mechanism

What does 'processing' refer to in the context of an expert system?

• Altering the data within the system

• Updating the system's hardware

• Changing the user interface

• Rewriting the system's code

Why is the order of rules important in backward chaining?

• It impacts the system's security

• It determines the speed of the system

• It changes the user interface

• It affects the accuracy of the decision-making process

Which part of the expert system is NOT processed during an interview?

• The inference engine

• The knowledge base

• The database of facts

• The user interface

What happens to the database of facts during the processing of an expert system?

• It is converted into code

• It is deleted

• It is updated with new data

• It remains unchanged