Canonical primal–dual algorithm for solving fourth-order polynomial minimization problems.

Abstract: This paper focuses on implementation of a general canonical primal–dual algorithm for solving a class of fourth-order polynomial minimization problems. A critical issue in the canonical duality theory has been addressed, i.e., in the case that the canonical dual problem has no interior critical point in its feasible space , a quadratic perturbation method is introduced to recover the global solution through a primal–dual iterative approach, and a gradient-based method is further used to refine the solution. A series of test problems, including the benchmark polynomials and several instances of the sensor network localization problems, have been used to testify the effectiveness of the proposed algorithm. [Copyright &y& Elsevier]