Zobrazeno 1 - 10
of 700
pro vyhledávání: '"Bai Zheng"'
Autor:
Zhang, Zhiyuan, Bai, Zheng-Jian
The eigenvalue problem is a fundamental problem in scientific computing. In this paper, we propose a mixed precision Jacobi method for the symmetric eigenvalue problem. We first compute the eigenvalue decomposition of a real symmetric matrix by an ei
Externí odkaz:
http://arxiv.org/abs/2211.03339
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures, Vol 231, Iss 2, Pp 455-456 (2016)
C16H13FN2O2, monoclinic, C2/c (no. 15), a = 13.2587(16) Å, b = 10.8816(11) Å, c = 19.750(3) Å, β = 101.803(12)°, V = 2789.2(6) Å3, Z = 8, Rgt(F) = 0.0423, wRref(F2) = 0.1158, T = 293 K.
Externí odkaz:
https://doaj.org/article/1f441a3496d94104bf5674ee8db3417a
This paper is concerned with the inverse problem of constructing a symmetric nonnegative matrix from realizable spectrum. We reformulate the inverse problem as an underdetermined nonlinear matrix equation over a Riemannian product manifold. To solve
Externí odkaz:
http://arxiv.org/abs/2110.15749
Nonnegative matrix factorization arises widely in machine learning and data analysis. In this paper, for a given factorization of rank r, we consider the sparse stochastic matrix factorization (SSMF) of decomposing a prescribed m-by-n stochastic matr
Externí odkaz:
http://arxiv.org/abs/2110.10412
Publikováno v:
In Journal of Constructional Steel Research October 2024 221
Autor:
Xiao, Guiyun, Bai, Zheng-Jian
In this paper, we consider the sparse least squares regression problem with probabilistic simplex constraint. Due to the probabilistic simplex constraint, one could not apply the L1 regularization to the considered regression model. To find a sparse
Externí odkaz:
http://arxiv.org/abs/2107.00809
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures, Vol 227, Iss 3, Pp 385-386 (2012)
C12H10N2Os2, monoclinic, P21/c (no. 14), a = 10.572(2) Å, b = 10.449(2) Å, c = 11.348(2) Å, β = 111.202(2)°, V = 1168.7 Å3, Z = 4,Rgt(F) = 0.0355, wRref(F2) = 0.0967, T = 296 K.
Externí odkaz:
https://doaj.org/article/1d2be5dd9f7f4b4bb79bf8702a9d55b7
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures, Vol 227, Iss 3, Pp 383-384 (2012)
C20H18N4O, orthorhombic, P212121 (no. 19), a = 6.8679(8) Å, b = 15.768(2) Å, c = 16.498(2) Å, V = 1786.6 Å3, Z = 4, Rgt(F) = 0.0362, wRref(F2) = 0.0899, T = 296 K.
Externí odkaz:
https://doaj.org/article/4a4329577c0d484eb778aebcb1258ad6
Autor:
Ren, Huan, Bai, Zheng-Jian
The QLP decomposition is one of the effective algorithms to approximate singular value decomposition (SVD) in numerical linear algebra. In this paper, we propose some single-pass randomized QLP decomposition algorithms for computing the low-rank matr
Externí odkaz:
http://arxiv.org/abs/2011.06855
Autor:
Bai, Zheng-Jian, Wang, Yang
In this paper, we consider the pole-zero assignment problem for vibratory systems via multi-input feedback control. We propose a multi-step two-stage approach for solving the multi-input pole-zero assignment problem. We first reformulate the assignme
Externí odkaz:
http://arxiv.org/abs/2009.12094