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求解线性方程组的投影算法
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科技导报 |研究论文 2006 , 24 (0607) : 41 -44
求解线性方程组的投影算法
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顾阿伦1,孙永广1,鲁红2
作者信息
    1. 清华大学核能与新能源技术研究院 北京2. 山东日照职业技术学校计算机系 山东日照
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顾阿伦
Method of Solving Linear Equations Based on Residual Space
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    出版时间: 2006-07-10
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    分析了基于残差空间求解线性方程组的一维投影算法、最速下降法和最小剩余法。定义了长轴陷阱及陷阱深度,用它们刻划了2种算法迭代过程中锯齿现象的几何特征。给出了基于残差序列的避开长轴陷阱的扰动技巧,即投影算法。数值试验表明,投影算法要优于现在流行的主要求解线性方程组算法。
    线性方程组  /  投影算法  /  长轴陷阱  /  陷阱深度
    The one-dimension projection algorithm, which is the steepest descent method, based on residual space for solving linear equations is analyzed in this paper. The definitions of long axis trap and trap depth are given. The geometrical feature of the algorithm is characterized. The method of perturbation based on residual series, which keeps residuals off the long axis trap, is presented in this paper. That is the multi-dimension projection method. The numerical experimentation shows that the method is superior to the present popular dominant algorithms.
    linear equations  /  project algorithm  /  long axis trap  /  trap depth
    顾阿伦;孙永广;鲁红. 求解线性方程组的投影算法. 科技导报, 2006 , 24 (0607) : 41 -44 .
    . Method of Solving Linear Equations Based on Residual Space[J]. Science & Technology Review, 2006 , 24 (0607) : 41 -44 .

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    鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
    小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
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    小菇属 Mycena 11 5.26
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