Article Contents
Article Contents

Linear bilevel multiobjective optimization problem: Penalty approach

• * Corresponding author: Yibing Lv
The first author is supported by the National Natural Science Foundation of China grant 11771058, 11201039, 71471140, 91647204.
• In this paper, we are interested by the linear bilevel multiobjective programming problem, where both the upper level and the lower level have multiple objectives. We approach this problem via an exact penalty method. Then, we propose an exact penalty function algorithm. Numerical results showing viability of the algorithm proposed are presented.

Mathematics Subject Classification: Primary: 90C26; Secondary: 90C30.

 Citation:

• Table 1.  The Pareto optimal solution obtained in this paper

 Exam. No. The Pareto optimal solution $(x^{*}, y^{*})$ obtained in this paper Exam.3 $(x^{*}, y^{*})=(2.479, 0.521, 3.479, 5.0)$ Exam.4 $(x^{*}, y^{*})=(144.2, 26.8, 2.97, 67.7, 0)$ Exam.5 $(x^{*}, y^{*})=(11.938, 0, 0, 14.177, 2.786, 6.036)$ Exam.6 $(x^{*}, y^{*})=(70.0,100.0, 70.0)$

Table 2.  Results in this paper and that in [15]

 Exam. No. Results in this paper Results by the algorithm in [15] Exam.3 $(x^{*}, y^{*})=(2.479, 0.521, 3.479, 5.0)$ $(x^{*}, y^{*})=(0.6, 2.4, 0, 0)$ $F(x^{*}, y^{*})=(3.521, 7.958)$ $F(x^{*}, y^{*})=(5.4, 4.2)$ Exam.4 $(x^{*}, y^{*})=(144.2, 26.8, 2.97, 67.7, 0)$ $(x^{*}, y^{*})=(144.2, 26.8, 2.97, 67.7, 0)$ $F(x^{*}, y^{*})=(482.7, 1831.4)$ $F(x^{*}, y^{*})=(482.7, 1831.4)$ Exam.5 $(x^{*}, y^{*})=(11.938, 0, 0, 14.177, 2.786, 6.036)$ $(x^{*}, y^{*})=(11.938, 0, 0, 14.177, 2.786, 6.036)$ $F(x^{*}, y^{*})=(-364.008, -182.004)$ $F(x^{*}, y^{*})=(-364.008, -182.004)$ Exam.6 $(x^{*}, y^{*})=(70.0,100.0, 70.0)$ $(x^{*}, y^{*})=(70.0,100.0, 70.0)$ $F(x^{*}, y^{*})=(10.0, 5.0)$ $F(x^{*}, y^{*})=(10.0, 5.0)$
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