Journal
IEEE TRANSACTIONS ON EVOLUTIONARY COMPUTATION
Volume 25, Issue 1, Pages 159-171Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TEVC.2020.3009390
Keywords
Cooperative co-evolution (CC); decomposition; large-scale global optimization
Funding
- Natural Science Foundation of Hubei Province [2019CFB584]
- National Natural Science Foundation of China [61305086, 61673355]
- Fundamental Research Funds for the Central Universities, China University of Geosciences, Wuhan [CUGL170412]
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Cooperative co-evolution (CC) is an efficient evolutionary framework for large-scale optimization problems, but its performance is affected by variable decomposition. To reduce computational costs, an efficient recursive differential grouping (ERDG) method is proposed in this article, which utilizes historical information to examine variable interrelationships and improve performance.
Cooperative co-evolution (CC) is an efficient and practical evolutionary framework for solving large-scale optimization problems. The performance of CC is affected by the variable decomposition. An accurate variable decomposition can help to improve the performance of CC on solving an optimization problem. The variable grouping methods usually spend many computational resources obtaining an accurate variable decomposition. To reduce the computational cost on the decomposition, we propose an efficient recursive differential grouping (ERDG) method in this article. By exploiting the historical information on examining the interrelationship between the variables of an optimization problem, ERDG is able to avoid examining some interrelationship and spend much less computation than other recursive differential grouping methods. Our experimental results and analysis suggest that ERDG is a competitive method for decomposing large-scale continuous problems and improves the performance of CC for solving the large-scale optimization problems.
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