Buscar
Mostrando ítems 1-10 de 141
Artículo
Clasificación de problemas verbales de álgebra elemental a partir de su resolución mediante un modelo geométrico-lineal
(Federación Iberoamericana de Educación Matemática, 2011-03)
En el siguiente artículo presentamos los resultados de un estudio exploratorio descriptivo sobre la resolución gráfica de problemas de álgebra elemental. El estudio plantea la caracterización de un modelo de resolución ...
Artículo
A characterization of the multivariate excess wealth ordering
(Elsevier, 2011-11)
In this paper, some new properties of the upper-corrected orthant of a random vector are proved. The univariate rightspread or excess wealth function, introduced by Fernández-Ponce et al. (1996), is extended to multivariate ...
Artículo
Binarized support vector machines
(INFORMS (Institute for Operations Research and Management Sciences), 2010)
The widely used Support Vector Machine (SVM) method has shown to yield very good results in Supervised Classification problems. Other methods such as Classification Trees have become more popular among practitioners than ...
Artículo
Tests for the equality of conditional variance functions in nonparametric regression
(Institute of Mathematical Statistics, 2015-08-27)
In this paper we are interested in checking whether the conditional variances are equal in k ≥ 2 location-scale regression models. Our procedure is fully nonparametric and is based on the comparison of the error ...
Artículo
Maximal covering location problems on networks with regional demand
(Elsevier, 2016-10)
Covering problems are well studied in the Operations Research literature under the assumption that both the set of users and the set of potential facilities are finite. In this paper we address the following variant, which ...
Artículo
On the Muth Distribution
(Vilnius Gediminas Technical University Journals, 2015-05-15)
The Muth distribution is a continuous random variable introduced inthe context of reliability theory. In this paper, some mathematical properties of themodel are derived, including analytical expressions for the ...
Artículo
A semidefinite programming approach for solving multiobjective linear programming
(Springer, 2014-03)
Several algorithms are available in the literature for finding the entire set of Pareto-optimal solutions in MultiObjective Linear Programming (MOLP). However, it has not been proposed so far an interior point algorithm ...
Artículo
A biobjective approach to recoverable robustness based on location planning
(ELSEVIER SCIENCE BV, 2017-02-16)
Finding robust solutions of an optimization problem is an important issue in practice, and various con- cepts on how to define the robustness of a solution have been suggested. The idea of recoverable robust- ness requires ...
Artículo
The Power Muth Distribution
(Vilnius Gediminas Technical University, 2017-03-01)
Muth introduced a probability distribution with application in relia-bility theory. We propose a new model from the Muth law. This paper studies itsstatistical properties, such as the computation of the moments, ...
Artículo
A global optimisation approach for parameter estimation of a mixture of double Pareto lognormal and lognormal distributions
(PERGAMON-ELSEVIER SCIENCE LTD, 2013-10-30)
The double Pareto Lognormal(dPlN) statistical distribution, defined interms of both an exponentiated skewed Laplace distribution and alog normal distribution, has proven suitable for fitting heavy tailed data. In this ...