Conclusion
   - CBR systems can be quite elaborate and are domain specific.
 
   - Like all software, the more important it is, the more time you
       can spend developing and maintaining it.
 
   - You can also make it a recommender system, so that it doesn't 
       just give answers but suggestions.
 
   - Take Home Points
      
	- CBR systems are based around cases.
 
	- The similarity metric is very important.
 
	- There is a real art to representing the cases.
 
	- There is a real art to developing the similarity metric.
 
	- Each CBR system is domain specific.
 
      
    
   - Reading:  For this lecture skim Janet Kolodner's
      
        Case-Based Reasoning
        and read
      
       Case Based Reasoning Wiki.
 
   - The reading for next week 
       is Russell and Norvig Chapter 8 (pp 290 - 319) First Order Logic.