Inverse problems and solution methods for a class of nonlinear complementarity problems

  • Authors:
  • Jian-Zhong Zhang;Jin-Bao Jian;Chun-Ming Tang

  • Affiliations:
  • United International College of the Beijing Normal University and Hong Kong Baptist University, Zhuhai, China;College of Mathematics and Information Science, Guangxi University, Nanning, P.R. China 530004;College of Mathematics and Information Science, Guangxi University, Nanning, P.R. China 530004

  • Venue:
  • Computational Optimization and Applications
  • Year:
  • 2011

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Abstract

In this paper, motivated by the KKT optimality conditions for a sort of quadratic programs, we first introduce a class of nonlinear complementarity problems (NCPs). Then we present and discuss a kind of inverse problems of the NCPs, i.e., for a given feasible decision $\bar{x}$ , we aim to characterize the set of parameter values for which there exists a point $\bar{y}$ such that $(\bar{x},\bar{y})$ forms a solution of the NCP and require the parameter values to be adjusted as little as possible. This leads to an inverse optimization problem. In particular, under 驴 驴, 驴 1 and Frobenius norms as well as affine maps, this paper presents three simple and efficient solution methods for the inverse NCPs. Finally, some preliminary numerical results show that the proposed methods are very promising.