1. CS62S: Expert Systems Knowledge acquisition and system implementation Based on Chap. 12: The Engineering of Knowledge-based Systems: Theory and Practice, A. J. Gonzalez and D. D. Dankel

2. Knowledge acquisition Involves two parts: Knowledge elicitation, and Knowledge representation

3. Knowledge elicitation Kick-off interview Acquaint the knowledge engineer with the discipline Acquaint the expert to what will take place over the elicitation period Discuss expectations Suggest reading materials Make schedule

4. General knowledge-gathering sessions Understand the domain better Understand the expert’s opinions Build rapport

5. Specific problem-solving knowledge-gathering sessions Extraction of knowledge of a particular sub-area, assuming it is: Well understood by the expert Fairly understood by the knowledge engineer Broad enough to represent a sub-section of the knowledge in the domain Small enough to require a ‘short’ time to develop

6. Knowledge organization Outputs – the solutions to the problem Inputs – the information used to deduce the output Middle – the expert’s knowledge that connects the input to the output

7. Knowledge documentation Rule-base knowledge diagrams:

8. Knowledge elicitation techniques Observational On-site observation Quiet Discussion Intuitive – knowledge engineer becomes expert in role-playing