Khatere Ghorbani-Moghadam - Faculty of Mathematical Sciences, Sharif University of Technology, Tehran, Iran
Reza Ghanbari - Faculty of Mathematical Sciences, Department of Applied Mathematics, Ferdowsi University of Mashhad, Mashhad, Iran
Nezam Mahdavi-Amiri - Faculty of Mathematical Sciences, Sharif University of Technology, Tehran, Iran

Recently, we proposed modified Kerre’s method as a more efficient approach than the original Kerre’s approach for comparison of LR fuzzy numbers. Using the modified Kerre’s method, we proposed a new variable neighborhood search algorithm for solving fuzzy number quadratic programming problems. In our algorithm, the local search is defined based on descent directions. We show the effectiveness of our proposed method in comparison with some available methods by using a non-parametric statistical sign test.

Fuzzy quadratic programming problem, Modified Kerre s method, Ranking function