Solving a type of biobjective bilevel programming problem using NSGA-II

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This paper considers a type of biobjective bilevel programming problem, which is derived from a single objective bilevel programming problem via lifting the objective function at the lower level up to the upper level. The efficient solutions to such a model can be considered as candidates for the after optimization bargaining between the decision-makers at both levels who retain the original bilevel decision-making structure. We use a popular multiobjective evolutionary algorithm, NSGA-II, to solve this type of problem. The algorithm is tested on some small-dimensional benchmark problems from the literature. Computational results show that the NSGA-II algorithm is capable of solving the problems efficiently and effectively. Hence, it provides a promising visualization tool to help the decision-makers find the best trade-off in bargaining. © 2009 Elsevier Ltd. All rights reserved.




Li, M., Lin, D., & Wang, S. (2010). Solving a type of biobjective bilevel programming problem using NSGA-II. Computers and Mathematics with Applications, 59(2), 706–715.

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