Alternated Chaotic Biogeography Based Algorithm for Optimization Problems

Alternated Chaotic Biogeography Based Algorithm for Optimization Problems

Mamta Rani (Central University of Rajasthan, Ajmer, India) and Deepak Kumar (Central University of Rajasthan, Ajmer, India)
Copyright: © 2019 |Pages: 12
DOI: 10.4018/IJAEC.2019100102

Abstract

Chaotic maps have improved the performance of BBO algorithm as chaotic migration and chaotic mutation help in maintaining diversity of the population on a higher level to avoid a habitat's entrapment in the local optimal solutions. Many chaotic maps have been used in BBO algorithm. Recently, alternation method in discrete dynamics has emerged as a powerful tool for control and anti-control of chaos. In this article, it is proposed to use alternated chaotic logistic map in BBO algorithm to improve the performance further.
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1. Introduction

Dan Simon, an American Scientist, gave BBO evolutionary algorithm in 2008 which was inspired from biogeography (Simon, 2008). The term biogeography refers to the study of migration of different species living in geographically separate ecosystems. The movement of species completes the information flow between different habitats. However, entrapment of the solution in local optima (exploration) and slower rate of convergence (exploitation) are the two possible problems, which are similar to the other evolutionary algorithms (Du, Simon & Ergezer, 2009; Simon, 2011).

Many meta-heuristic algorithms have used chaotic data to improve upon the performance of these algorithms by forming a proper balance between the exploration and exploitation activities (Gandomi, Yang, Talatahari & Alavi, 2013; Li-Jiang & Tian-Lun, 2002; Liu, Wang, Jin, Tang & Huang, 2005; Strogartz, 1994). The approach uses chaotic migration and chaotic mutation operators which help in maintaining diversity of the population on a higher level to avoid habitat’s entrapment in local optimal solutions. Saremi and Mirjalili (2013) employed three chaotic maps on four test functions to check the competitiveness of the proposed optimization algorithm. The experimental results have proved that the integration of chaotic maps with the BBO algorithm improved the performance of BBO. The sine map out of all the other chaotic maps has shown excellent results. Later on, the authors expanded their idea further (Saremi, Mrijalili & Lewis, 2014) by using ten chaotic maps and ten benchmark functions. They employed their idea in five different ways. First, they used chaotic maps to define the selection, emigration and mutation probabilities, then combined the selection and migration operators and finally combined selection, migration and mutation operators. Guo-ping et al. (2016) employed BBO algorithm for parameter estimation of discrete chaotic systems using minimal number of time series data and controlling chaos by a constant feedback method. Giri et al. (2017) used chaos in improving the local and global parameters of the BBO algorithm. They have shown improved performance over the non-chaotic BBO approach in terms of higher speed of convergence.

Jalili et al. (2014) used chaos based BBO algorithm to solve the optimization problem of truss structures with natural frequency constraints which is inherently a nonlinear dynamic optimization problem. Heidari et al. (2015) used chaotic BBO to predict the EIDS (Earthquake-originated Slope Displacements) in combination with SVR (Support Vector Regression) to explore the best values of SVR parameters. They found the unknown system parameters of discrete chaotic systems by searching the global optimal values. Wang et al. (2016) applied chaotic BBO method on centroid based clustering optimization. Wang and Song (2017) used the proximity of the combination of the BBO algorithm with the optimal chaos mapping strategy towards the migration model under the natural law to achieve overall increased convergence velocity and higher level of optimization accuracy. To understand the different kind of modifications in BBO and its combination with other meta-heuristic techniques, one may refer to a comprehensive review of 10 years prepared by Ma et al. (2017).

Independent of ecological studies, theoretical analysts have focussed on alternate dynamical strategies also which is, initially, due to Parrondo’s paradox (Danca, Fečkan & Romera, 2014). The basic idea of the alternate discrete dynamics is that when two logistic maps are combined together alternatively, they may behave differently. One of the situations may be that the two ordered logistic maps may show chaotic behaviour when iterated together alternatively, i.e., order1 + order2 = chaos.

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