Journal
EXPERT SYSTEMS WITH APPLICATIONS
Volume 165, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eswa.2020.113897
Keywords
Salp swarm algorithm; Ensemble mutation strategy; Restart mechanism; Swarm intelligence; Constrained engineering optimization problems
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Funding
- National Natural Science Foundation of China [U1809209, 71803136, 61471133]
- National Natural Science Foundation of Zhejiang province [LQ18F020005]
- Science and Technology of Wenzhou [S20170008, Y20180232]
- Guangdong Natural Science Foundation [2018A030313339]
- Scientific Research Team Project of Shenzhen Institute of Information Technology [SZIIT2019KJ022]
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The proposed CMSRSSSA algorithm effectively enhances the exploration and exploitation capacity of the salp swarm algorithm, outperforming competitors in solving a variety of optimization problems. The ensemble mutation strategy and restart mechanism make CMSRSSSA a promising method for both constrained and unconstrained optimization tasks.
This research proposes a reinforced salp swarm algorithm (SSA) variant with an ensemble mutation strategy and a restart mechanism, which is named CMSRSSSA for short, to enhance exploration and exploitation capacity of SSA and conquer the restriction of a single search mechanism of the SSA in tackling continuous optimization problems. In this variant, an ensemble/composite mutation strategy (CMS) can boost the exploitation and exploration trends of SSA, as well as restart strategy (RS) is capable of assisting salps in getting away from local optimum. To investigate the performance of the proposed optimizer, firstly, IEEE CEC2017 benchmark problems are used to estimate the capability of the presented CMSRSSSA in solving continuous optimization problems in comparison to other advanced algorithms; furthermore, IEEE CEC2011 real-world benchmark problems and constrained engineering optimization problems are also utilized to assess the performance of CMSRSSSA for practical ideas. Experimental and statistical results reveal that the CMSRSSSA outperforms all the competitors, including winners of the related IEEE CEC competition; therefore, it will be able to be treated as a promising method in resolving both constrained and unconstrained optimization problems. For post-publication supports and guides on the idea of the paper, please be in touch with the hosting website: http://aliasgharheidari.com.
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