Dynamic group search algorithm for solving an engineering problem
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Recently many researchers invented a wide variety of meta-heuristic optimization algorithms. Most of them achieved remarkable performance results by infusing the natural phenomena or biological behaviors into the search logics of the optimization algorithms, such as PSO, Cuckoo Search and so on. Although these algorithms have promising performance, there still exist a drawback—it is hard to find a perfect balance between the global exploration and local exploitation from the traditional swarm optimization algorithms. Like an either-or problem, algorithms that have better global exploration capability come with worse local exploitation capability, and vice versa. In order to address this problem, in this paper, we propose a novel Dynamic Group Search Algorithm (DGSA) with enhanced intra-group and inter-group communication mechanisms. In particular, we devise a formless “group” concept, where the vectors of solutions can move to different groups dynamically based on the group best solution fitness, the better group has the more vectors. Vectors inside a group mainly focus on the local exploitation for enhancing its local search. In contrast, inter-group communication assures strong capability of global exploration. In order to avoid being stuck at local optima, we introduce two types of crossover operators and an inter-group mutation. Experiments using benchmarking test functions for comparing with other well-known optimization algorithms are reported. DGSA outperforms other algorithms in most cases. The DGSA is also applied to solve welded beam design problem. The promising results on this real world problem show the applicability of DGSA for solving an engineering design problem.
KeywordsComponent Group search algorithm Optimization
The authors are thankful for the financial support from the Research Grant Temporal Data Stream Mining by Using Incrementally Optimized Very Fast Decision Forest (iOVFDF), Grant No. MYRG2015-00128-FST, and Research Grant ‘Nature-Inspired Computing and Metaheuristics Algorithms for Optimizing Data Mining Performance’, Grant No. MYRG2016-00069-FST.offered by the University of Macau, FST, and RDAO.
- Pardalos PM (2006) Advances in global optimization: methods and applications. In: 5th international conference on advances in global optimization: methods and applications. Myconos, GreeceGoogle Scholar
- Shlesinger MF, Zaslavsky GM, Frisch U (1995) Lévy flights and related topics in physics. Proceedings of the international workshop held at Nice, France, 27–30 June 1994, Lecture notes in physics, vol 450. Springer, Berlin Google Scholar
- Tang R, Fong S, Yang XS, Deb S (2012) Wolf search algorithm with ephemeral memory. In: Digital information management (ICDIM),2012 Seventh International Conference on IEEE, pp 165–172Google Scholar
- Yang XS, Deb S (2009)Cuckoo search via Lévy flights. In: Nature & biologically inspired computing. NaBIC 2009. World Congress on IEEE, pp 210–214Google Scholar
- Yang XS, Ting TO, Karamanoglu M (2013) Random walks, Lévy flights, markov chains and metaheuristic optimization. In: Jung H-K, Kin JT, Sahama T, Yang C-H (eds) Future information communication technology and applications. Springer, Netherland, pp 1055–1064Google Scholar