The process following the tness measure is the construction
of the next generation selection. The selection process is
dependent on the tness measure of the chromosomes. In the
selection process, the population is rst sorted by a comparison
of tness values. The top Npop Rselect chromosomes
are included in the selected/mating pool, where Npop is the
population size (total number of chromosomes) and Rselect
is the selection rate (which is chosen as 0:5 in this paper).
A pair of parent chromosomes is selected from this pool and
mated using the crossover procedure discussed in the next
section.