Identify applications of expert systems
7 Expert Systems
What is an Expert System?
🤖 An expert system is a computer program that mimics the decision‑making ability of a human expert. It uses a knowledge base (facts and rules) and an inference engine (logic to draw conclusions) to solve problems in a specific domain.
Analogy: Think of it as a superhero sidekick that remembers all the rules and helps you solve problems quickly, even if you’re not a specialist.
Exam Tip
When answering “Identify applications of expert systems”, list at least three distinct domains and give a concrete example for each. Use bullet points for clarity and remember to explain why the system is useful in that context.
Common Applications
- Medical diagnosis – e.g., MYCIN for bacterial infections.
- Financial advisory – e.g., systems that recommend investment portfolios.
- Industrial maintenance – e.g., troubleshooting machinery faults.
- Customer support – e.g., chatbots that resolve common queries.
- Legal advice – e.g., systems that help draft contracts based on regulations.
Domain‑Specific Examples
| Application | Domain | Concrete Example |
|---|---|---|
| MYCIN | Healthcare | Diagnoses bacterial infections and suggests antibiotics. |
| C-Expert | Industrial Engineering | Diagnoses faults in manufacturing equipment. |
| Watson | Customer Service | Answers customer queries and escalates complex issues. |
Analogy in Action
Imagine you’re a detective (the student) and the expert system is a smart notebook that instantly pulls up all the clues (rules) you need to solve a mystery (problem). The notebook never forgets, so you can focus on piecing the story together.
How to Use Expert Systems in Exams
- Identify the domain (e.g., medicine, finance).
- State the problem type the system solves.
- Give a specific example of a system in that domain.
- Explain why it’s useful – speed, accuracy, cost savings.
Quick Review Checklist
- Know the definition of an expert system.
- Remember at least three domains.
- Be able to name a real system in each domain.
- Explain the benefit of using the system.
Revision
Log in to practice.