See the README file in the superdiretoctory (ecj/ec/gp/), which describes
the files in this directory as well.  Some specifics not described there:


ec.gp.koza.CrossoverPipeline

A GPBreedingPipeline which performs subtree crossover.


ec.gp.koza.MutationPipeline

A GPBreedingPipeline which performs subtree mutation (replacing a randomly
chosen subtree with a randomly-generated subtree).


ec.gp.GrowBuilder

A GPNodeBuilder which implements Koza's GROW algorithm.


ec.gp.FullBuilder

A GPNodeBuilder which implements Koza's FULL algorithm.


ec.gp.HalfBuilder

A GPNodeBuilder which implements Koza's RAMPED HALF-AND-HALF algorithm.