吉林大学学报(理学版)

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求解带有多个复杂约束优化问题的乘子法

姜晓威1,2, 杨月婷1, 路云龙1,2, 赵雪1   

  1. 1. 北华大学 数学与统计学院, 吉林 吉林 132013; 2. 大连理工大学 数学科学学院, 辽宁 大连 116024
  • 收稿日期:2014-05-15 出版日期:2015-03-26 发布日期:2015-03-24
  • 通讯作者: 杨月婷 E-mail:32934255@qq.com

Multiplier Method for Solving Optimization Problemswith Many Complicated Constraints

JIANG Xiaowei1,2, YANG Yueting1, LU Yunlong1,2, ZHAO Xue1   

  1. 1. School of Mathematics and Statistics, Beihua University, Jilin 132013, Jilin Porvince, China;2. School of Mathematical Sciences, Dalian University of Technology, Dalian 116024, Liaoning Province, China
  • Received:2014-05-15 Online:2015-03-26 Published:2015-03-24
  • Contact: YANG Yueting E-mail:32934255@qq.com

摘要:

针对带有多个复杂约束的优化问题, 设计一种基于有效集策略的乘子法. 对于转化后的无约束问题, 利用凝聚函数近似其中的极大值函数. 在每步迭代中仅有一小部分函数参与计算, 因此梯度计算量显著减少, 进而减少了计算成本. 数值试验表明了方法的有效性.

关键词: 多约束优化, 乘子法, 有效集, 凝聚函数

Abstract:

A multiplier method based on activeset strategy was presented for solving optimization problems with many complicated constraints. We got a converted unconstrained problems, in which the maxvalue function could be approximated by the aggregate function. In each iteration procedure, only a small part of functions were usually involved, so the computation for gradient was significantly reduced. The numerical results show that the method is effective.

Key words: optimization with lots of constraints, multiplier method, activeset, aggregate function

中图分类号: 

  • O221.2