Parallelizing Gene Expression Programming Algorithm in Enabling Large-Scale Classification

Table 3

The details of the parameters of GEP.

Number of genes	2 (iris)/4 (wine)
Linking function	+
Head length	6
Function set	/cos sin tan exp log sqrt abs
Fitness	r/n
Terminal set	abcd (iris)/abcdefghijklm (wine)
Population size	100
Mutation rate	0.044
IS transposition rate	0.1
RIS transposition rate	0.1
Gene transposition rate	0.1
One-point recombination rate	0.4
Two-point recombination rate	0.2
Gene recombination rate	0.1
Threshold	0.5
Coded classes	1, 2, and 3