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TLS和LS问题的比较
ON THE COMPARISION OF THE TOTAL LEAST SQUARES AND THE LEAST SQUARES PROBLEMS
【摘要】 <正> 1.引 言 自1980年Golub和Van Loan[1]提出总体最小二乘问题(以下简称TLS问题)后,总体最小二乘(TLS)和最小二乘(LS)的方法已经得到了广泛的应用。关于TLS和LS之
【Abstract】 There are a number of articles discussing the total least squares(TLS) and the least squares(LS) problems. M. Wei(M. Wei, Mathematica Numerica Sinica 20(3)(1998), 267-278) proposed a new orthogonal projection method to improve existing perturbation bounds of the TLS and LS problems. In this paper, we continue to improve existing bounds of differences between the squared residuals, the weighted squared residuals and the minimum norm correction matrices of the TLS and LS problems.
【关键词】 总体最小二乘;
最小二乘;
残量;
加权残量;
修正矩阵;
精度;
【Key words】 Total least squares; least squares; squared residual; weighted squared residual; correction matrice; accuracy.;
【Key words】 Total least squares; least squares; squared residual; weighted squared residual; correction matrice; accuracy.;
【基金】 上海市重点学科建设基金
- 【文献出处】 计算数学 ,Mathematica Numerica Sinica , 编辑部邮箱 ,2003年04期
- 【分类号】O241.5
- 【被引频次】31
- 【下载频次】620