On the global convergence of derivative-free methods or unconstrained optimization

被引:55
|
作者
Lucidi, S
Sciandrone, M
机构
[1] Univ Roma La Sapienza, Dipartimento Informat & Sistemist, I-00185 Rome, Italy
[2] CNR, Ist Anal Sistemi & Informat, I-00185 Rome, Italy
关键词
unconstrained minimization; derivative-free methods;
D O I
10.1137/S1052623497330392
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, starting from the study of the common elements that some globally convergent direct search methods share, a general convergence theory is established for unconstrained minimization methods employing only function values. The introduced convergence conditions are useful for developing and analyzing new derivative-free algorithms with guaranteed global convergence. As examples, we describe three new algorithms which combine pattern and line search approaches.
引用
收藏
页码:97 / 116
页数:20
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