Adaptive Representations for Improving Evolvability, Parameter Control, and Parallelization of Gene Expression Programming

Table 2

Summary of symbolic regression experimental results.

Exper.	Ours		Comparison
Number	Length	Fitness	Length	Fitness
1^1	254	99.984%	266	99.496%
2^1	87	99.983%	282	99.907%
3^1	155	99.735%	470	96.187%
4^2	62	99.987%	185	99.966%
5^2	55	99.179%	186	98.936%

1: Compared to PGEP-O.
2: Compared to canonical distributed GEP.