基于近似策略的联合优化方法

针对优化中收敛速度和优化解全局性的问题,提出了一种联合优化方法:构造原问题的近似模型,使用全局优化方法对近似函数进行优化,得到优化点作为初值,再使用局部优化方法对原问题进行优化.为了获得对原问题更好的近似,改进了径向基插值方法,以优化误差的方法来选择参数.利用临近空间机翼模型的优化对算法进行了测试,结果表明,优化参数的...

Approximation Based Combined Optimization Methodology

Aimed at solving the problem of optimization convergence and the global optimization,this research proposes a Combined Optimization Methodology,which combines the global and local optimization methods.The former one can obtain global optimum solution but converge slowly,while the latter one can converge fast and obtain a local optimum solution and can be sensitive to initial value.Firstly,the approximation function of the original problem was built.Then the approximate optimum solution was obtained by the g...