Expert Systems

• CBR is one class of Expert System.
• The other major class is rule based systems. We will look at this later in the year.
• These are relatively old (but still useful) systems (since the 70s).
• The idea is that you get knowledge from experts, and the systems reproduce their behaviour.
• For CBR, the knowledge is the case base, and the similarity metric.
• The person who develops the system is called the knowledge engineer, and the people with the knowledge are the domain experts.
• Knowledge engineering is a sophisticated task.