Table 2
Investigated parameter settings for the MGGP based method.
Parameter | Corresponding values |
---|---|
Function set | +, −, ×, ÷, √, exp, ln |
Population size | 250 |
Number of runs | 1, 5, 10, 15, 20, 25, 30, 40 |
Tournament size | 25 |
Maximum tree depth | 4 |
Number of generations | 100, 500, 1000, 2000 |
Maximum number of genes | 1, 2, 3, 4, 5, 6 |
Maximum number of nodes per tree | 2, 4, 6, 8, 10, 12 |
Mutation events | 0.10 |
Crossover events | 0.85 |
Reproduction events | 0.05 |