【正文】
Cambridge University Press, 1992. [10]J C Ports.The development and evaluation of an improved genetic algorithm based on migration and artificial selection[J].IEEE Trans. Syst. Man and Cybern..1994, 24(1),7385. A Hybrid Approach for Nonlinear OptimizationAbstract:Combined BFGS method with chaos optimization method, a hybrid approach was proposed to solve nonlinear optimization problems with boundary restraints of variables. The hybrid method is an effective approach to solve nonconvex optimization problems, as it given both attentions to the inherent virtue to locate global optimum of chaos optimization method and the advantage of high convergence speed of BFGS method. Numerical examples illustrate that the present method possesses both good capability to search global optima and far higher convergence speed than that of chaos optimization method.key words:hybrid approach;BFGS method;chaos optimization method;global optimum