摘要
为在有界闭集上寻找非光滑函数的全局极小点,本文在文献[12]的基础上提出了一个改进的填充函数定义,然后给出了一个新的双参数填充函数.讨论了所给填充函数的理论和数值性质并设计了相应的算法.分析表明所给填充函数对参数的选择优于相关文献中的结果.数值实验表明,本文所给出的新的填充函数算法是有效的.
For finding a global minimizer of a nonsmooth function on a closed bounded domain,this paper gives a modified concept of a filled function based on [12]. Then a two-parameter filled function is proposed. Theoretical and numerical properties of the proposed filled function are investigated and corresponding solution algorithm is proposed. The choice of the parameters is better than known results in literatures. Numerical results obtained indicate the efficiency of the 'proposed new filled function method.
出处
《应用数学》
CSCD
北大核心
2008年第3期558-565,共8页
Mathematica Applicata
基金
the National Natural Science Foundation of China(10571116)
关键词
非光滑优化
全局优化
填充函数
广义梯度
方向导数
Nonsmooth optimization
Global optimization
Filled function
Generalized gradient
Directional derivative