Q16Principles of Artificial Intelligence
Question
Explain the architecture of a typical Expert System.
Answer
A typical Expert System comprises a Knowledge Base, an Inference Engine, and a User Interface.
The architecture of a typical Expert System involves three primary components:
1. Knowledge Base: It contains the domain-specific, high-quality knowledge extracted from human experts. It stores facts, rules (usually IF-THEN statements), and relationships regarding the problem domain.
2. Inference Engine: This is the brain of the expert system. It processes the rules and facts in the knowledge base to deduce new information, evaluate hypotheses, and reach conclusions using forward or backward chaining.
3. User Interface: This allows the end-user to interact with the system. It accepts user queries, passes them to the inference engine, and displays the final decision along with explanations for the reasoning process.