abstract = "This SAB-90 paper describes the recently developed
'genetic programming' paradigm which genetically breeds
populations of computer programs to solve problems. In
genetic programming, the individuals in the population
are hierarchical computer programs of various sizes and
shapes. This paper also extends the genetic programming
paradigm to a 'co-evolution' algorithm which operates
simultaneously on two populations of
independently-acting hierarchical computer programs of
various sizes and shapes.",
notes = "SAB-1990 conference was held in 1990 but its
proceedings were published in 1991.