Numerical performance of hyperplane constrained method and its hybrid method for singular value decomposition
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The hyperplane constrained method has been proposed in Yadani et al. (Appl Math Comp 216:779–790, 2010) computing singular value decomposition (SVD) of matrix. In the method, the SVD is replaced with solving nonlinear systems whose solutions are constrained on hyperplane, and then their solutions are computed with the help of Newton’s iterative method. In this paper, we present a new convergence theorem concerning the hyperplane constrained method in finite arithmetic. We also clarify the numerical performance of the hyperplane constrained method. In numerical experiments, we first show that the computed singular values and singular vectors are with high accuracy, even if the target matrix of SVD has small singular values, almost the same singular values, not small condition number. Though the hyperplane constrained method requires not small amount of computations, it fastens by combining other fast singular value decomposition method. We next propose a hybrid method which adopts the singular vectors computed by other fast method as the initial guess of the Newton type iteration in order to decrease the iteration number. By numerical experiments, we can see that the hybrid method runs faster than the original hyperplane constrained method with almost same accuracy.
KeywordsSingular value decomposition Newton’s iterative method Nonlinear system Inverse iteration
Mathematics Subject Classification (2000)65F15 65H10
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- 3.Demmel J, McKenney A (1989) A test matrix generation suite. LAPACK working note no. 9, Courant Institute, New YorkGoogle Scholar
- 8.Kondo K, Yasukouchi S, Iwasaki M (2009) Eigendecomposition algorithms solving sequentially quadratic systems by Newton method. JSIAM Lett 1: 40–43Google Scholar
- 11.Press WH et al (2007) Numerical recipes: the art of scientific computing, 3rd edn. Cambridge University PressGoogle Scholar
- 12.Wilkinson JH (1965) The algebraic eigenvalue problem. Oxford University PressGoogle Scholar