Results 11 to 20 of about 3,035,359 (290)

Extreme-Point Symmetric Mode Decomposition Method for Data Analysis

open access: yesAdvances in Adaptive Data Analysis, 2013
An extreme-point symmetric mode decomposition (ESMD) method is proposed to improve the Hilbert-Huang Transform (HHT) through the following prospects: (1) The sifting process is implemented by the aid of 1, 2, 3 or more inner interpolating curves, which ...
Li, Zong-Jun, Wang, Jin-Liang
core   +3 more sources

Forecasting the Carbon Price Using Extreme-Point Symmetric Mode Decomposition and Extreme Learning Machine Optimized by the Grey Wolf Optimizer Algorithm

open access: yesEnergies, 2019
Due to the nonlinear and non-stationary characteristics of the carbon price, it is difficult to predict the carbon price accurately. This paper proposes a new novel hybrid model for carbon price prediction. The proposed model consists of an extreme-point
Jianguo Zhou   +3 more
doaj   +3 more sources

Interactive Image Segmentation Technique Based on Improved Residual Network

open access: yesIEEE Access, 2023
Interactive image segmentation offers useful guidance to users and can be applied in practical settings for production and daily life purposes. Nonetheless, the technology’s intrinsic limitations, including complicated interaction methods and high
Feng Yang, Dan Geng
doaj   +1 more source

A note on multivariate majorization [PDF]

open access: yesJournal of Mahani Mathematical Research, 2022
‎A matrix $A$ is said to be multivariate majorized by a matrix $B$‎, ‎written $A\prec B$‎, ‎if there exists a doubly stochastic matrix $D$ such that $A = BD$‎ .
Mehdi Dehghanian, Ahmad Mohammadhasani
doaj   +1 more source

Classification of the extreme points of ${\mathcal L}_s(^2l_{\infty}^3)$ by computation

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2022
Let $l_{\infty}^3=\mathbb{R}^3$ be endowed with the supremum norm. In [Comment. Math. 2017,  57 (1), 1-7], S.G. Kim classified the extreme points of the unit ball of ${\mathcal L}_s(^2l_{\infty}^3)$ only using Mathematica 8, where ${\mathcal L}_s(^2l_ ...
Sung Guen Kim
doaj   +1 more source

Some Properties of Certain Subclass of Meromorphic Functions Associated with $(p , q)$-derivative [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2020
In this paper, by making use of $(p , q) $-derivative operator we introduce a new subclass of meromorphically univalent functions. Precisely, we give a necessary and sufficient coefficient condition for functions in this class.
Mohammad Hassan Golmohammadi   +2 more
doaj   +1 more source

Extreme points of ${\mathcal L}_s(^2l_{\infty})$ and ${\mathcal P}(^2l_{\infty})$

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
For $n\geq 2,$ we show that every extreme point of the unit ball of ${\mathcal L}_s(^2l_{\infty}^n)$ is extreme in ${\mathcal L}_s(^2l_{\infty}^{n+1})$, which answers the question in [Period. Math. Hungar. 2018, 77 (2), 274-290].
Sung Guen Kim
doaj   +1 more source

Preservation of Extreme Points

open access: yesMathematics, 2022
We characterize the extreme points of the closed unit ball of the dual of a Banach space which are preserved by the adjoint of any extreme operator. The result is related to the structure topology introduced by Alfsen and Effros on the set of all extreme points in the dual of any Banach space.
Juan Francisco Mena-Jurado   +1 more
openaire   +5 more sources

Geometric Invariants of Surjective Isometries between Unit Spheres

open access: yesMathematics, 2021
In this paper we provide new geometric invariants of surjective isometries between unit spheres of Banach spaces. Let X,Y be Banach spaces and let T:SX→SY be a surjective isometry.
Almudena Campos-Jiménez   +1 more
doaj   +1 more source

Extreme and exposed symmetric bilinear forms on the space ${\mathcal L}_{s}(^2 l_{\infty}^2)$

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2020
We classify extreme points and exposed points of the unit ball of the space of bilinear symmetric forms on the real Banach space of bilinear symmetric forms on $l_{\infty}^2.$ It is shown that for this case, the set of extreme points is equal to the set ...
Sung Guen Kim
doaj   +1 more source

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