Results 11 to 20 of about 409,631 (265)

Fast Multi-Label Low-Rank Linearized SVM Classification Algorithm Based on Approximate Extreme Points

open access: yesIEEE Access, 2018
To solve the problem that traditional multi-label support vector machine (SVM) classification algorithm adopting nonlinear kernel has been severely restricted from being used on large-scale data sets, we propose fast multi-label low-rank-linearized SVM ...
Zhongwei Sun   +4 more
doaj   +3 more sources

Sufficient Statistics and Extreme Points

open access: yesThe Annals of Probability, 1978
A convex set $M$ is called a simplex if there exists a subset $M_e$ of $M$ such that every $P \in M$ is the barycentre of one and only one probability measure $\mu$ concentrated on $M_e$. Elements of $M_e$ are called extreme points of $M$. To prove that a set of functions or measures is a simplex, usually the Choquet theorem on extreme points of convex
openaire   +5 more sources

Questions About Extreme Points

open access: yesIntegral Equations and Operator Theory, 2023
AbstractWe discuss the geometry of the unit ball—specifically, the structure of its extreme points (if any)—in subspaces of$$L^1$$L1and$$L^\infty $$L∞on the circle that are formed by functions with prescribed spectral gaps. A similar issue is considered for kernels of Toeplitz operators in$$H^\infty $$H∞.
openaire   +4 more sources

Strictly extreme and strictly exposed points

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
The notions of strictly extreme and strictly exposed are introduced. Their properties are discussed, examples are given, and inter-relationships investigated.
Jing Hui Qiu, Kelly McKennon
doaj   +1 more source

𝐶*-extreme points [PDF]

open access: yesTransactions of the American Mathematical Society, 1981
Let A \mathcal {A} be a C ∗ {C^ \ast } -algebra and let S \mathcal {S} be a subset of A \mathcal {A} . S \mathcal {S} is C ∗ {C^ \ast
Alan Hopenwasser   +2 more
openaire   +1 more source

Extreme points and support points of conformal mappings

open access: yesOpen Mathematics, 2019
There are three types of results in this paper. The first, extending a representation theorem on a conformal mapping that omits two values of equal modulus. This was due to Brickman and Wilken.
Peretz Ronen
doaj   +1 more source

On aNew Class of Meromorphically Univalent Functions with Applications to Geometric Functions [PDF]

open access: yesEngineering and Technology Journal, 2017
In this work, we inform a new class of meromorphic univalent function.We derive basic properties such ascoefficient estimates, convex set, extremepoints, radius of starlikeness and convexity, hadamard product, integraloperator,
M. Lafta, K. AL- Zubaidy
doaj   +1 more source

Pre-Emptive-Weights Goal-Programming for a Multi-Attribute Decision-Making Problem with Positive Correlation among Finite Criteria

open access: yesAxioms, 2022
This paper analyzes the various properties of the positively correlated weights related to the subset of finite criteria in a multi-attribute decision-making problem.
Juin-Han Chen, Hui-Chin Tang
doaj   +1 more source

Note on pointwise contractive projections

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1993
Let C(X) be the space of real-valued continuous functions on a Hausdorff completely regular topological space X. endowed with the compact-open topology. In this paper necessary and sufficient conditions are given for a subspace of C(X) to be the range of
L. M. Sanchez Ruiz   +1 more
doaj   +1 more source

On the Generalization of a Class of Harmonic Univalent Functions Defined by Differential Operator

open access: yesMathematics, 2018
In this article, a new class of harmonic univalent functions, defined by the differential operator, is introduced. Some geometric properties, like, coefficient estimates, extreme points, convex combination and convolution (Hadamard product) are obtained.
Aqeel Ketab AL-khafaji   +2 more
doaj   +1 more source

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