Prediction on the Inhibition Ratio of Pyrrolidine Derivatives on Matrix Metalloproteinase Based on Gene Expression Programming

Table 2

All the parameters and selection of GEP.

Parameters	Selection
Division	/
Addition	+
Square Root	Sqrt
Sine	Sin
Tangent	Tan
Multiplication	*
Subtraction	−
Power	Pow
Natural logarithm	Ln
10^∧X	Pow10
Chromosomes	100
Genes	5
Head size	8
Gene size	26
Linking function	Addition
Generations without change	200
Number of tries	3
Max. complexity	5
Error type	MSE
Precision	—
Selection range	—
0/1 rounding threshold	—
Mutation rate	0.044
Inversion rate	0.1
IS transposition rate	0.1
RIS transposition rate	0.1
One-point recombination rate	0.3
Two-point recombination rate	0.3
Gene recombination rate	0.1
Gene transposition rate	0.1
Constants per gene	10
Data type	Floating-point
Lower bound	−10
Upper bound	10
RNC mutation	0.01
Dc mutation	0.044
Dc inversion	0.1
Dc IS transposition	0.1