abstract = "In Grammatical Evolution (GE) individuals occupy more
space than required, that is, the Actual Length of the
individuals is longer than their Effective Length. This
has major implications for scaling GE to complex
problems that demand larger populations and complex
individuals. We show how these two lengths vary for
different sizes of population, demonstrating that
Effective Length is relatively independent of
population size, but that the Actual Length is
proportional to it. We introduce Grammatical Evolution
Memory Optimisation (GEMO), a two-stage evolutionary
system that uses a multi-objective approach to identify
the optimal, or at least, near-optimal, genome length
for the problem being examined. It uses a single run
with a multi-objective fitness function defined to
minimise the error for the problem being tackled along
with maximising the ratio of Effective to Actual Genome
Length leading to better use of memory and hence,
computational speedup. Then, in Stage 2, stand",
notes = "IJCCI
Biocomputing Developmental Systems, University of
Limerick, Irland",