Results 41 to 50 of about 156,386 (347)

Kernel classifier construction using orthogonal forward selection and boosting with Fisher ratio class separability measure [PDF]

open access: yes, 2006
A greedy technique is proposed to construct parsimonious kernel classifiers using the orthogonal forward selection method and boosting based on Fisher ratio for class separability measure.
Wang, X. X.   +9 more
core   +1 more source

Digital three-stage recursive-separable image processing filter with variable sizes of scanning multielement aperture

open access: yesРоссийский технологический журнал
Objectives. The main aim of digital image processing is to increase clarity while maintaining image quality and eliminate noise. However, the amount of information contained in digital image files is growing year after year.
A. V. Kamenskiy   +2 more
doaj   +1 more source

SAR Target Incremental Recognition Based on Features With Strong Separability

open access: yesIEEE Transactions on Geoscience and Remote Sensing
With the rapid development of deep learning technology, many synthetic aperture radar (SAR) target recognition algorithms based on convolutional neural networks have achieved exceptional performance on various datasets.
Fei Gao   +6 more
semanticscholar   +1 more source

Central limit theorems for conditional efficiency measures and tests of the ‘separability’ condition in non‐parametric, two‐stage models of production

open access: yes, 2018
In this paper, we demonstrate that standard central limit theorem (CLT) results do not hold for means of non‐parametric, conditional efficiency estimators, and we provide new CLTs that permit applied researchers to make valid inference about mean ...
C. Daraio, L. Simar, P. W. Wilson
semanticscholar   +1 more source

On p-Separability [PDF]

open access: yes, 1989
We introduce the notion of p-separability in analogy with the recursion-theoretic notion of recursive separability. The existence of p-inseparable sets in NP is related to structural properties of complexity classes.
Dubhashi, Devdatt P.
core   +5 more sources

Estimates for the Approximation and Eigenvalues of the Resolvent of a Class of Singular Operators of Parabolic Type

open access: yesMathematics, 2023
In this paper, we study a differential operator of parabolic type with a variable and unbounded coefficient, defined on an infinite strip. Sufficient conditions for the existence and compactness of the resolvent are established, and an estimate for the ...
Mussakan Muratbekov   +2 more
doaj   +1 more source

Introducing selective d-separability in bitopological spaces

open access: yes, 2022
We introduce D-separability and its game-theoretic version, D+-separability in bitopological spaces, and investigate their relationships with d-separability and a weaker form of H-separability which will be called DH-separability.
ÖZÇAĞ, SELMA, SELMA ÖZÇAĞ
core   +1 more source

Separability of the third-order differential operator given on the whole plane

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
In this paper, in the space L2(R2), we study a third-order differential operator with continuous coefficients in R (-∞ , +∞). Here, these coefficients can be unlimited functions at infinity.
A.O. Suleimbekova
doaj   +1 more source

covatest: An R Package for Selecting a Class of Space-Time Covariance Functions

open access: yesJournal of Statistical Software, 2020
Although a very rich list of classes of space-time covariance functions exists, specific tools for selecting the appropriate class for a given data set are needed. Thus, the main topic of this paper is to present the new R package, covatest, which can be
Claudia Cappello   +2 more
doaj   +1 more source

Caliber and Chain Conditions in Soft Topologies

open access: yesMathematics, 2021
In this paper, we contribute to the growing literature on soft topology. Its theoretical underpinning merges point-set or classical topology with the characteristics of soft sets (a model for the representation of uncertain knowledge initiated in 1999 ...
José Carlos R. Alcantud   +2 more
doaj   +1 more source

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