| 快速收敛的可行方向算法 |
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| 引用本文： | 唐燮黎,陆晓敏,赵引.快速收敛的可行方向算法[J].河海大学学报(自然科学版),1999,27(1):61-65. |
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| 作者姓名： | 唐燮黎 陆晓敏 赵引 |
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| 作者单位： | 河海大学土木工程学院,南京,210098 |
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| 摘 要： | 用算例研究了尝试法计算中初始步长选取和收敛速度的关系，进而提出了一种新的步长确定法－－约束近似法，避免了人为给定初始步长的缺陷。对比计算表明，本文方法还可大幅度地提高可行方向法的收敛速度。
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| 关 键 词： | 优化 可行方向法 步长计算 |
| 修稿时间： | 1997-08-26 |
Feasible Direction Method of Rapid Convergence |
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| Tang Xieli,Lu Xiaomin,Zhao Yin.Feasible Direction Method of Rapid Convergence[J].Journal of Hohai University (Natural Sciences ),1999,27(1):61-65. |
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| Authors: | Tang Xieli Lu Xiaomin Zhao Yin |
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| Abstract: | In this paper,the relationship between the initial step length and the convergence rate for the try and error method is studied with examples,then a new method for determining the step length,which is called the method of constraint approximation,is presented.The new method avoids the drawback that the initial step length should be set subjectively.Furthermore,the results of comparative calculation show that the new method can considerably improve the rate of convergence for the feasible direction method. |
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| Keywords: | optimization feasible direction method step length calculation |
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