Smooth minimization of non-smooth functions

被引:1606
|
作者
Nesterov, Y [1 ]
机构
[1] Univ Catholique Louvain, Ctr Operat Res & Econometr, B-1348 Louvain, Belgium
关键词
non-smooth optimization; convex optimization; optimal methods; complexity theory; structural optimization;
D O I
10.1007/s10107-004-0552-5
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
In this paper we propose anew approach for constructing efficient schemes for non-smooth convex optimization. It is based on a special smoothing technique, which can be applied to functions with explicit max-structure. Our approach can be considered as an alternative to black-box minimization. From the viewpoint of efficiency estimates, we manage to improve the traditional bounds on the number of iterations of the gradient schemes from O (1/is an element of(2)) to O (1/is an element of), keeping basically the complexity of each iteration unchanged.
引用
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页码:127 / 152
页数:26
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