Listar Análisis Matemático, Estadística e Investigación Operativa y Matematica Aplicada - (AM) por título
Mostrando ítems 1-20 de 135
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A bayesian approach for one-way ANOVA under unequal variances
In this report a Bayesian solution to the problem of testing the equality of the means of k independent normal populations with unknown and arbitrary variances is provided. An important issue in the solution of this problem ... -
A Bayesian approach to the multivariate Behrens-Fisher problem.
The multivariate Behrens-Fisher problem consists of testing the equality of the mean vectors of two independent multivariate normal populations with unknown and arbitrary covariance matrices. In this work we provide a ... -
A Bayesian Functional Methodology for Dengue Risk Mapping in Latin America and the Caribbean
Dengue fever has become one of the most outstanding infectious diseases in the world. Besides, the incidence and prevalence of dengue are increasing in the endemic areas of the tropical and subtropical regions. Space and ... -
A Bayesian Solution to the Behrens-Fisher problem
Girón González-Torre, F. Javier; Castillo-Vázquez, Carmen
(Springer, 2021-07)
A simple solution to the Behrens–Fisher problem based on Bayes factors is presented, and its relation with the Behrens–Fisher distribution is explored. The construction of the Bayes factor is based on a simple hierarchical ... -
A Class of Well-Balanced Algorithms for Relativistic Fluids on a Schwarzschild Background
LeFloch, Philippe G.; Parés-Madroñal, Carlos María; Pimentel García, Ernesto (SPRINGER, 2021-08-16)
For the evolution of a compressible fluid in spherical symmetry on a Schwarzschild curved background, we design a class of well-balanced numerical algorithms up to third-order accuracy. We treat both the relativistic ... -
A data-based approach for solving the Rank Pricing Problem.
The Rank Pricing Problem is a challenging mixed-integer optimization problem. It aims to determine the optimal pricing strategies of a set of products ranked by customer preferences. Given its NP-hard nature, existing ... -
A new proof of the characterization of the weighted Hardy inequality
Bernardis-Medici, Ana Lucía; Martín-Reyes, Francisco Javier; Ortega-Salvador, Pedro (Cambridge University Press, 2005)
Maz'ja and Sinnamon proved a characterization of the boundedness of the Hardy operator from Lp(v) into Lq(w) in the case 0 < q < p, 1 < p < ∞. We present here a new simple proof of the sufficiency part of that result. -
A novel embedded min-max approach for feature selection in nonlinear Support Vector Machine classification
Jiménez-Cordero, María Asunción; Morales-González, Juan Miguel; Pineda-Morente, Salvador (Elsevier, 2021)
In recent years, feature selection has become a challenging problem in several machine learning fields, such as classification problems. Support Vector Machine (SVM) is a well-known technique applied in classification ... -
A sparse approach to mixed weak type inequalities.
(Springer Nature, 2019-12-10)Abstract. In this paper we provide some quantitative mixed weak-type estimates assuming conditions that imply that uv ∈ A∞ for Calder´on-Zygmund operators, rough singular integrals and commutators. The main novelty of ... -
A spatial functional count model for heterogeneity analysis in time
A spatial curve dynamical model framework is adopted for functional prediction of counts in a spatiotemporal logGaussian Cox process model. Our spatial functional estimation approach handles both wavelet-based heterogeneity ... -
Acotación y compacidad de operadores lineales y multilineales en espacios con pesos
(UMA Editorial, 2024-03)En esta tesis probaremos desigualdades con pesos para las versiones multilineales de algunos operadores del Análisis clásico. En este sentido, caracterizaremos las desigualdades de tipo débil mixto con pesos para los ... -
Adding user interactivity to FreeFem++ with EJS: From teaching to research
(2015-05-15)In this talk we propose the use of an authoring tool, Easy Java Simulations, to build interactive simulations for pdes where the computing kernel is FreeFem++. This tool allows to play with all the parameters of the pde ... -
Algoritmos eficientes para convoluciones adaptados a las aplicaciones
Banjai, L.; López-Fernández, María (2022)
Proponemos algoritmos para la aproximacion de determinadas ecuaciones integrales de Volterra relevantes en las aplicaciones, que consiguen minimizar el coste computational, comprimir la memoria y son faciles de implementar. ... -
All-regime Lagrangian-Remap numerical schemes for the gas dynamics equations. Applications to the large friction and low Mach coefficients
(2016-05-16)In this talk, we propose an all regime Lagrange-Projection like numerical scheme for the gas dynamics equations. By all regime, we mean that the numerical scheme is able to compute accurate approximate solutions with an ... -
An Arbitrary High Order Well-Balanced ADER-DG Numerical Scheme for the Multilayer Shallow-Water Model with Variable Density
Guerrero Fernández, Ernesto; Castro-Díaz, Manuel Jesús; Dumbser, Michael; Morales-de-Luna, Tomás (Springer, 2021-12-17)
In this work, we present a novel numerical discretization of a variable pressure multilayer shallow water model. The model can be written as a hyperbolic PDE system and allows the simulation of density driven gravity ... -
Asymptotic properties of parameter estimates for random fields with tapered data.
Alomari, Huda Mohammed; Frías, María P.; Leonenko, Nikolai; Ruiz-Medina, María D.; Sakhno, Lyudmyla; Torres-Signes, Antoni[et al.] (Institute of Mathematical Statistics, 2017)
In this paper we present novel results on the asymptotic behavior of the so-called Ibragimov minimum contrast estimates. The case of tapered data for various models of Gaussian random fields is investigated. The CLT for ... -
Asymptotic variance of the Beurling transform
(2017-03-17)symptotic variance can be used to measure the boundary behaviour of conformal maps and Bloch functions. A formula due to McMullen connects it to the Hausdorff dimension expansion of limit sets for certain dynamical families ... -
Automatic feature scaling and selection for support vector machine classification with functional data.
Jiménez-Cordero, María Asunción; Maldonado-Alarcón, Sebastián (Springer Nature, 2020)
Functional Data Analysis (FDA) has become a very important field in recent years due to its wide range of applications. However, there are several real-life applications in which hybrid functional data appear, i.e., data ... -
Bergman projection induced by radial weight acting on growth spaces
Moreno, Álvaro Miguel; Peláez-Márquez, José Ángel; Taskinen, Jari (Springer, 2024)
Let ω be a radial weight on the unit disc of the complex plane D and denote by ω(r) = 1 r ω(s) ds the tail integrals. A radial weight ω belongs to the class D if satisfies the upper doubling condition sup 0<r< ∞. If ν ... -
Bergman projection induced by radial weight and Litlewood-Paley estimates
(2019-10-04)Se estudia la acotación de la proyección de Bergman entre espacios L^p y su relación con estimaciones de tipo Littlewood-Paley en términos de la derivadas sucesivas