Journal
JOURNAL OF INDUSTRIAL AND MANAGEMENT OPTIMIZATION
Volume 11, Issue 2, Pages 529-547Publisher
AMER INST MATHEMATICAL SCIENCES
DOI: 10.3934/jimo.2015.11.529
Keywords
Bilevel programming; optimistic formulation; pessimistic formulation; partial cooperation; penalty method; critical point
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Funding
- National Science Foundation of China [71171150, 71201146, 11226226]
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We first propose an exact penalty method to solve strong-weak linear bilevel programming problem (for short, SWLBP) for every fixed cooperation degree from the follower. Then, we prove that the solution of penalized problem is also that of the original problem under some conditions. Furthermore, we give some properties of the optimal value function (as a function of the follower's cooperation degree) of SWLBP. Finally, we develop a method to acquire the critical points of the optimal value function without enumerating all values of the cooperation degree from the follower, and thus this function is also achieved. Numerical results show that the proposed methods are feasible.
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