abstract = "In this paper, we provide an algorithm that
systematically considers all small trees in the search
space of genetic programming. These small trees are
used to generate useful subroutines for genetic
programming. This algorithm is tested on the Artificial
Ant on the Santa Fe Trail problem, a venerable problem
for genetic programming systems. When four levels of
iteration are used, the algorithm presented here
generates better results than any known published
result by a factor of 7.",
notes = "GECCO-2007 A joint meeting of the sixteenth
international conference on genetic algorithms
(ICGA-2007) and the twelfth annual genetic programming
conference (GP-2007).