Results 21 to 30 of about 297,374 (195)

Using Permutations for Hierarchical Clustering of Time Series

open access: yesEntropy, 2019
Two distances based on permutations are considered to measure the similarity of two time series according to their strength of dependency. The distance measures are used together with different linkages to get hierarchical clustering methods of time ...
Jose S. Cánovas   +2 more
doaj   +1 more source

Domain Selection for Gaussian Process Data: An Application to Electrocardiogram Signals. [PDF]

open access: yesBiom J
ABSTRACT Gaussian processes and the Kullback–Leibler divergence have been deeply studied in statistics and machine learning. This paper marries these two concepts and introduce the local Kullback–Leibler divergence to learn about intervals where two Gaussian processes differ the most.
Hernández N, Martos G.
europepmc   +2 more sources

Dynamics of non-convolution operators and holomorphy types [PDF]

open access: yes, 2018
In this article we study the hypercyclic behavior of non-convolution operators defined on spaces of analytic functions of different holomorphy types over Banach spaces.
Muro, Luis Santiago Miguel   +2 more
core   +1 more source

Reducing Chaos and Bifurcations in Newton-Type Methods

open access: yesAbstract and Applied Analysis, 2013
We study the dynamics of some Newton-type iterative methods when they are applied of polynomials degrees two and three. The methods are free of high-order derivatives which are the main limitation of the classical high-order iterative schemes.
S. Amat, S. Busquier, Á. A. Magreñán
doaj   +1 more source

On certain inequalities associated to curvature properties of the nonlinear PPH reconstruction operator

open access: yesJournal of Inequalities and Applications, 2019
In this paper we study the curvature term for the Lagrange and PPH (Amat et al. in Found. Comput. Math. 6:193–225, 2006 and Ortiz and Trillo in Preprint, arXiv:1811.10566, 2018) reconstruction operators in uniform and nonuniform meshes.
J. C. Trillo, P. Ortiz
doaj   +1 more source

Collocation Methods for High-Order Well-Balanced Methods for Systems of Balance Laws

open access: yesMathematics, 2021
In some previous works, two of the authors introduced a technique to design high-order numerical methods for one-dimensional balance laws that preserve all their stationary solutions. The basis of these methods is a well-balanced reconstruction operator.
Irene Gómez-Bueno   +3 more
doaj   +1 more source

Parameters and fractional factors in different settings

open access: yesJournal of Inequalities and Applications, 2019
In computer networks, the feasibility of data transmission can be measured in terms of fractional factor model, and specifically the framework of fractional critical deleted graph can express the setting when certain sites and channels are unavailable at
Wei Gao, Juan L. G. Guirao
doaj   +1 more source

On a Family of High-Order Iterative Methods under Kantorovich Conditions and Some Applications

open access: yesAbstract and Applied Analysis, 2012
This paper is devoted to the study of a class of high-order iterative methods for nonlinear equations on Banach spaces. An analysis of the convergence under Kantorovich-type conditions is proposed.
S. Amat   +4 more
doaj   +1 more source

La modelación matemática, una estrategia para la enseñanza de la estadística

open access: yes, 2020
espanolEste articulo socializa la experiencia tomada del proyecto “Ensenanza de la estadistica: un desafio abordado por la modelacion matematica” financiado por la Universidad Popular del Cesar en su convocatoria 2018, aplicada en 2019 con estudiantes de
Roberto Carlos Caballero Florez   +3 more
semanticscholar   +1 more source

Expanding the Applicability of a Third Order Newton-Type Method Free of Bilinear Operators

open access: yesAlgorithms, 2015
This paper is devoted to the semilocal convergence, using centered hypotheses, of a third order Newton-type method in a Banach space setting. The method is free of bilinear operators and then interesting for the solution of systems of equations.
Sergio Amat   +3 more
doaj   +1 more source

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