A simple diversity guided firefly algorithm
Abstract
Purpose
The purpose of this paper is to present a modified firefly algorithm (FA) considering the population diversity to avoid local optimum and improve the algorithm’s precision.
Design/methodology/approach
When the population diversity is below the given threshold value, the fireflies’ positions update according to the modified equation which can dynamically adjust the fireflies’ exploring and exploiting ability.
Findings
A novel metaheuristic algorithm called FA has emerged. It is inspired by the flashing behavior of fireflies. In basic FA, randomly generated solutions will be considered as fireflies, and brightness is associated with the objective function to be optimized. However, during the optimization process, the fireflies become more and more similar and gather into the neighborhood of the best firefly in the population, which may make the algorithm prematurely converged around the local solution.
Research limitations/implications
Due to different dimensions and different ranges, the population diversity is different undoubtedly. And how to determine the diversity threshold value is still required to be further researched.
Originality/value
This paper presents a modified FA which uses a diversity threshold value to guide the algorithm to alternate between exploring and exploiting behavior. Experiments on 17 benchmark functions show that the proposed algorithm can improve the performance of the basic FA.
Keywords
Acknowledgements
This research is financially supported by the National Natural Science Foundation of China (NSFC) for Professor Shoubao Su (No. 61075049) and the Universities Natural Science Foundation of Anhui Province (No. KJ2011A268 and No. KJ2012Z429). The authors of the paper express great acknowledgement for these supports.
Citation
Yu, S., Su, S. and Huang, L. (2015), "A simple diversity guided firefly algorithm", Kybernetes, Vol. 44 No. 1, pp. 43-56. https://doi.org/10.1108/K-11-2013-0241
Publisher
:Emerald Group Publishing Limited
Copyright © 2015, Emerald Group Publishing Limited