Journal of Optimization Theory and Applications

, 151:241

Global Optimality Conditions and Optimization Methods for Quadratic Knapsack Problems

Article

DOI: 10.1007/s10957-011-9885-4

Cite this article as:
Wu, Z.Y., Yang, Y.J., Bai, F.S. et al. J Optim Theory Appl (2011) 151: 241. doi:10.1007/s10957-011-9885-4

Abstract

The quadratic knapsack problem (QKP) maximizes a quadratic objective function subject to a binary and linear capacity constraint. Due to its simple structure and challenging difficulty, it has been studied intensively during the last two decades. This paper first presents some global optimality conditions for (QKP), which include necessary conditions and sufficient conditions. Then a local optimization method for (QKP) is developed using the necessary global optimality condition. Finally a global optimization method for (QKP) is proposed based on the sufficient global optimality condition, the local optimization method and an auxiliary function. Several numerical examples are given to illustrate the efficiency of the presented optimization methods.

Keywords

Quadratic knapsack problemGlobal optimality conditionsLocal optimization methodGlobal optimization method

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Z. Y. Wu
    • 1
  • Y. J. Yang
    • 2
  • F. S. Bai
    • 1
  • M. Mammadov
    • 1
  1. 1.School of Information Technology and Mathematical SciencesUniversity of BallaratBallaratAustralia
  2. 2.Department of MathematicsShanghai UniversityShanghaiChina