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解无约束最优化的基于锥模型的过滤集-信赖域方法 被引量:5

A filter-trust-region method based on conic model for unconstrained optimization
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摘要 锥模型优化方法是一类非二次模型优化方法,它在每次迭代中比标准的二次模型方法含有更丰富的插值信息.Di和Sun(1996)提出了解无约束优化问题的锥模型信赖域方法.本文根据Fletcher和Leyffer(2002)的过滤集技术的思想,在Di和Sun(1996)工作的基础上,提出了解无约束优化问题的基于锥模型的过滤集信赖域算法.在适当的条件下,我们证明了新算法的收敛性.有限的数值试验结果表明新算法是有效的. Conic model optimization methods are one class of non-quadratic model optimization methods.It contains richer interpolation information than the standard quadratic model.Di and Sun(1996) proposed a trust-region method based on conic model for unconstrained optimization.Based on Di and Sun(1996),this paper employs the filter technique due to Fletcher and Leyffer(2002) and proposes a filter-trust-region method based on conic model for unconstrained optimization.Under mild conditions,we prove the convergence of new algorithm.Limited numerical results show that the new algorithm is efficient.
作者 孙文瑜 徐东
出处 《中国科学:数学》 CSCD 北大核心 2012年第5期527-543,共17页 Scientia Sinica:Mathematica
基金 国家自然科学基金(批准号:11071122 11171159) 教育部博士点基金(批准号:20103207110002)资助项目
关键词 无约束优化 锥模型 信赖域方法 过滤集方法 收敛性 unconstrained optimization conic model trust region method filter technique convergence
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