I see this term used often in papers concerning genetic programming but I'm unsure as to its origin and definition. I understand that individuals are scored by a fitness function that determines how good their solution is to the problem but I don't understand how scoring against "fitness cases" works.
I am trying to find a very simple problem that is appropriate for solution using a GP approach and have been working from the first two slides of these notes: http://www.inf.ed.ac.uk/teaching/courses/nat/slides/nat09h.pdf
A fitness case is one of a set of problems against which the performance of a GP can be measured. GP breeding will generally reach a conclusion when a solution is found that scores above some threshold on the fitness cases or when a certain number of time steps has elapsed and no such solution has been found.