- In Rule based systems, derived knowledge is knowledge that the
user neither puts directly into the system, or recieves from the
system, but the system uses.
- Pragmatically, a WM item that is on the then side of one rule and the
if side of another is derived.
- Why is derived knowledge important? It shows that the system is
doing more reasoning. It shows that it is a deeper system.
- What is an example of derived knowledge?
- In noughts and crosses, knowledge that the opponent has two in
a row is derived from the board.
- In the second lab, if A then B, if B then C, B is derived knowledge.
- What would be an example of derived knowledge.
- In class work: write a rule that determines that X's have two in
a row. Write a rule that uses that fact.