Some properties of LSQR for large sparse linear least squares problems
Some properties of LSQR for large sparse linear least squares problems
复制标题
大型稀疏线性最小二乘问题的 LSQR 的一些性质
DOI:
10.1007/s11424-010-7190-1
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发表时间:
2010-09
影响因子:
2.1
通讯作者:
贾仲孝
中科院分区:
文献类型:
--
作者:
贾仲孝
It is well-known that many Krylov solvers for linear systems, eigenvalue problems, and singular value decomposition problems have very simple and elegant formulas for residual norms. These formulas not only allow us to further understand the methods theoretically but also can be used as cheap stopping criteria without forming approximate solutions and residuals at each step before convergence takes place. LSQR for large sparse linear least squares problems is based on the Lanczos bidiagonalization process and is a Krylov solver. However, there has not yet been an analogously elegant formula for residual norms. This paper derives such kind of formula. In addition, the author gets some other properties of LSQR and its mathematically equivalent CGLS.
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DOI:
10.5860/choice.34-1602
发表时间:
1996
期刊:
--
影响因子:
--
作者:
J. Navarro-Pedreño
通讯作者:
J. Navarro-Pedreño
影响因子:
14.3
作者:
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DOI:
10.2307/2007453
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期刊:
--
影响因子:
--
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DOI:
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发表时间:
2015-01-01
期刊:
NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS: USING MATLAB
影响因子:
--
作者:
Ford, William
通讯作者:
Ford, William
影响因子:
3.1
作者:
Baglama, J;Reichel, L
通讯作者:
Reichel, L