Research Article
Modeling of Drilling Forces Based on Twist Drill Point Angles Using Multigene Genetic Programming
| Parameters | Setting values |
| Population size | 400 | Number of generations | 150 | Lexicographic selection | True | Max tree depth | 4 | Max nodes per tree | Inf | Functional set | times, minus, plus, pdivide, sin, cos, exp, mypower | Terminal set | Number of inputs: 6, constants range: [−10 10] | Max genes | 3 | Using fitness function | regressmulti_fitfun.m | Crossover probability | 0.85 | Reproduction probability | 0.10 | Mutation probability | 0.05 |
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