Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Yaotang Li"'
Publikováno v:
Mathematics, Vol 12, Iss 1, p 96 (2023)
NONNEGATIVE matrix factorization (NMF) is an effective technique for dimensionality reduction of high-dimensional data for tasks such as machine learning and data visualization. However, for practical clustering tasks, traditional NMF ignores the man
Externí odkaz:
https://doaj.org/article/6f0929ea74dd497e9a7cb925f5fbaf8b
Autor:
Jie Li, Yaotang Li
Publikováno v:
PeerJ, Vol 11, p e14667 (2023)
One of the most common diseases among women of reproductive age is bacterial vaginosis (BV). However, the etiology of BV remains unknown. In this study, we modeled the temporal sample of the vaginal microbiome as a network and investigated the relati
Externí odkaz:
https://doaj.org/article/594402c0ccf048cab33294e8a415182e
Autor:
Suhua Li, Yaotang Li
Publikováno v:
Journal of Inequalities and Applications, Vol 2018, Iss 1, Pp 1-7 (2018)
Abstract M-eigenvalues of fourth-order partially symmetric tensors play an important role in many real fields such as quantum entanglement and nonlinear elastic materials analysis. In this paper, we give two bounds for the maximal absolute value of a
Externí odkaz:
https://doaj.org/article/63d05769a0584300a7a55c5560fd472b
Publikováno v:
Journal of Inequalities and Applications, Vol 2017, Iss 1, Pp 1-12 (2017)
Abstract By estimating the ratio of the smallest component and the largest component of a Perron vector, we provide a new bound for the spectral radius of a nonnegative tensor. And it is proved that the proposed result improves the bound in (Li and N
Externí odkaz:
https://doaj.org/article/711e65fa135e44c9a13af4631d546e57
Autor:
Qilong Liu, Yaotang Li
Publikováno v:
Journal of Inequalities and Applications, Vol 2016, Iss 1, Pp 1-13 (2016)
Abstract We present a new class of nonsingular tensors (p-norm strictly diagonally dominant tensors), which is a subclass of strong H $\mathcal{H}$ -tensors. As applications of the results, we give a new eigenvalue inclusion set, which is tighter tha
Externí odkaz:
https://doaj.org/article/19f2f095edff420295ebadc2c16169f8
Autor:
Xiao Feng, Yaotang Li
Publikováno v:
Mathematics, Vol 7, Iss 2, p 155 (2019)
The generalized polynomials such as Chebyshev polynomial and Hermite polynomial are widely used in interpolations and numerical fittings and so on. Therefore, it is significant to study inclusion regions of the zeros for generalized polynomials. In t
Externí odkaz:
https://doaj.org/article/5e54d957c2314f84a752406f7c4560aa
Publikováno v:
Journal of Applied Mathematics, Vol 2014 (2014)
A new upper bound which involves a parameter for the infinity norm of the inverse of Nekrasov matrices is given. And we determine the optimal value of the parameter such that the bound improves the results of Kolotilina, 2013. Numerical examples are
Externí odkaz:
https://doaj.org/article/05d3ae3b002a4b30bd55ce55919d6da3
Publikováno v:
Journal of Applied Mathematics, Vol 2013 (2013)
By applying the properties of Schur complement and some inequality techniques, some new estimates of diagonally and doubly diagonally dominant degree of the Schur complement of Ostrowski matrix are obtained, which improve the main results of Liu and
Externí odkaz:
https://doaj.org/article/f65779c14dc74ac0978b6bf101d012b9
Publikováno v:
Information Sciences. 629:646-666
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c8e467f28df08998cfe902e43b861e2
https://doi.org/10.1016/j.ins.2023.02.012
https://doi.org/10.1016/j.ins.2023.02.012
Publikováno v:
Linear and Multilinear Algebra. :1-12
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5488d1b573603ae60bfba0f36fb7a103
https://doi.org/10.1080/03081087.2023.2172378
https://doi.org/10.1080/03081087.2023.2172378