Prediction of the Compressive Strength of Concrete Admixed with Metakaolin Using Gene Expression Programming

Table 5

The GEP algorithm parameters.

Parameter definition	Values/designations
Number of generations	100000–500000
Number of chromosomes	30
Function set	+, −, , /, x^2, sin, cos, arc tan, e
Number of genes	3
Head size	8
Linking function	+
Mutation rate	0.00138