Advancement of the search process of salp swarm algorithm for global optimization problems

•A novel variant of salp swarm algorithm is proposed.•The proposal fruitfully employs three simple but effective methodologies.•It is applied to 35 benchmark test functions and four real-life application problems.•Results are widely compared to the relevant results in literature.•The findings are hi...

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Bibliographic Details
Published in:Expert systems with applications Vol. 182; p. 115292
Main Authors: Çelik, Emre, Öztürk, Nihat, Arya, Yogendra
Format: Journal Article
Language:English
Published: New York Elsevier Ltd 15.11.2021
Elsevier BV
Subjects:
Algorithms
Chains
Chaos theory
Exploitation
Global optimization
Modified algorithm
Mutualism
Parameter modification
Search process
Sinusoidal map
Modified algorithm
Global optimization
Chaos theory
Mutualism
Sinusoidal map
ISSN:0957-4174, 1873-6793
Online Access:Get full text
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Summary:•A novel variant of salp swarm algorithm is proposed.•The proposal fruitfully employs three simple but effective methodologies.•It is applied to 35 benchmark test functions and four real-life application problems.•Results are widely compared to the relevant results in literature.•The findings are highly impressive, ratifying the overt potential of this work. This paper propounds a modified version of the salp swarm algorithm (mSSA) for solving optimization problems more prolifically. This technique is refined from the base version with three simple but effective modifications. In the first one, the most important parameter in SSA responsible for balancing exploration and exploitation is chaotically changed by embedding a sinusoidal map in it to catch a better balance between exploration and exploitation from the first iteration until the last. As a short falling, SSA can’t exchange information amongst leaders of the chain. Therefore, a mutualistic relationship between two leader salps is included in mSSA to raise its search performance. Additionally, a random technique is systematically applied to the follower salps to introduce diversity in the chain. This can be since there may be some salps in the chain that do not necessarily follow the leader for exploring unvisited areas of the search space. Several test problems are solved by the advocated approach and results are presented in comparison with the relevant results in the available literature. It is ascertained that mSSA, despite its simplicity, significantly outperforms not only the basic SSA but also numerous recent algorithms in terms of fruitful solution precision and convergent trend line.
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ISSN:0957-4174
1873-6793
DOI:10.1016/j.eswa.2021.115292