Machine-coded genetic operators and their performances in floating-point genetic algorithms
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2017-01-25 https://doi.org/10.14419/ijams.v5i1.7128 -
Genetic algorithms, Optimization, Simulations -
Abstract
Machine-coded genetic algorithms (MCGAs) use the byte representation of floating-point numbers which are encoded in the computer memory. Use of the byte alphabet makes classical crossover operators directly applicable in the floating-point genetic algorithms. Since effect of the byte-based mutation operator depends on the location of the mutated byte, the byte-based mutation operator mimics the functionality of its binary counterpart. In this paper, we extend the MCGA by developing new type of byte-based genetic operators including a random mutation and a random dynamic mutation operator. We perform a simulation study to compare the performances of the byte-based operators with the classical FPGA operators using a set of test functions. The prepared software package, which is freely available for downloading, is used for the simulations. It is shown that the byte-based genetic search obtains precise results by carrying out the both exploration and exploitation tasks by discovering new fields of the search space and performing a local fine-tuning. It is also shown that the introduced byte-based operators improve the search capabilities of FPGAs by means of convergence rate and precision even if the decision variables are in larger domains.
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How to Cite
Satman, M. H., & Akadal, E. (2017). Machine-coded genetic operators and their performances in floating-point genetic algorithms. International Journal of Advanced Mathematical Sciences, 5(1), 8-19. https://doi.org/10.14419/ijams.v5i1.7128