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Tikhonov regularization with a solution constraint

delete2004-01-01
delete42
PRE
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D
Daniela Calvetti
L
Lothar Reichel
DOI:10.1137/S1064827502412280delete
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Abstract

Abstract

En 中文
Many numerical methods for the solution of linear ill-posed problems apply Tikhonov regularization. This paper presents a modification of a numerical method proposed by Golub and von Matt for quadratically constrained least-squares problems and applies it to Tikhonov regularization of large-scale linear discrete ill-posed problems. The method is based on partial Lanczos bidiagonalization and Gauss quadrature. Computed examples illustrating its performance are presented.
Keywords:
ill-posed problem
regularization
Gauss quadrature
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Journal

SIAM Journal on Scientific Computing cover
SIAM Journal on Scientific Computing
IF:
2.6
Papers:
5.1K
Citations:
1.8W

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