Abstract
In DE, exploration and exploitation capabilities depend on two processes, namely mutation and crossover. In these two processes exploration capability and exploitation capability is balanced using the tuning of scale factor F and crossover probability CR. In DE, for a high value of CR and F, there is always enough chance to skip the true solution due to large step size in the solution search space. Therefore in this article, a self-adaptive scale factor strategy is proposed in which scale factor is adaptively decided through iterations. In the proposed strategy, in the early iteration, the value of F is kept high to keep the large step size while in later iterations the value of F is kept small to keep the step size short. The proposed strategy is named as Adaptive Scale Factor based Differential Evolution (ASFDE) Algorithm. Further, to increase the exploration capability of the algorithm, a limit is associated with every solution to count the number of not updating iterations. If this count crosses the pre-defined limit, then the solution is randomly initialized. The proposed algorithm is tested over 12 different benchmark functions and correlate with standard DE, and another swarm intelligence based algorithm, namely artificial bee colony (ABC) algorithm, and particle swam optimization (PSO) algorithm. The obtained results reveal that ASFDE is a competitive variant of DE.
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Choudhary, N., Sharma, H., Sharma, N. (2017). Adaptive Scale Factor Based Differential Evolution Algorithm. In: Deep, K., et al. Proceedings of Sixth International Conference on Soft Computing for Problem Solving. Advances in Intelligent Systems and Computing, vol 546. Springer, Singapore. https://doi.org/10.1007/978-981-10-3322-3_1
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DOI: https://doi.org/10.1007/978-981-10-3322-3_1
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