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Approximated set-valued mapping approach for handling multiobjective bilevel problems
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DOI：10.1016/j.cor.2016.08.001.png)
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Abstract
En 中文
A significant amount of research has been done on bilevel optimization problems both in the realm of classical and evolutionary optimization. However, the multiobjective extensions of bilevel programming have received relatively little attention from researchers in both the domains. The existing algorithms are mostly brute-force nested strategies, and therefore computationally demanding. In this paper, we develop insights into multiobjective bilevel optimization through theoretical progress made in the direction of parametric multiobjective programming. We introduce an approximated set-valued mapping procedure that would be helpful in the development of efficient evolutionary approaches for solving these problems. The utility of the procedure has been emphasized by incorporating it in a hierarchical evolutionary framework and assessing the improvements. Test problems with varying levels of complexity have been used in the experiments. (C) 2016 Elsevier Ltd. All rights reserved.
Keywords:
Bilevel optimization
Multiobjective optimization
Evolutionary algorithm
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