Artículos (Estadística e Investigación Operativa)
Recent Submissions
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Solutions of optimization problems on Hadamard manifolds with Lipschitz functions [Article]
(MDPI, 2020-05-12)The aims of this paper are twofold. First, it is shown, for the first time, which types of nonsmooth functions are characterized by all vector critical points as being efficient or weakly efficient solutions of vector ...
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A market regulation bilevel problem: a case study of the Mexican petrochemical industry [Article]
(Elsevier, 2019-08)In this paper, a bilevel programming model is proposed to study a problem of market regulation through government intervention. One of the main characteristics of the problem herein analyzed is that the government ...
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Professional profile of graduates with a degree in physical activity and sports science in Spain [Article]
(University of Pitesti, 2018-08)The new job opportunities that resulted from the growth of the sports industry, due to the impact of sports on society and the increase of sports practice, along with the concern about the influence of such practice on ...
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Order statistics from overlapping samples: bivariate densities and regression properties [Article]
(Taylor & Francis, 2019)In this paper we are interested in the joint distribution of two order statistics from overlapping samples. We give an explicit formula for the distribution of such a pair of random variables under the assumption that the ...
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Optimal arrangements of hyperplanes for SVM-based multiclass classification [Article]
(Springer, 2019-07)In this paper, we present a novel approach to construct multiclass classifiers by means of arrangements of hyperplanes. We propose different mixed integer (linear and non linear) programming formulations for the problem ...
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Flexible Birnbaum-Saunders distribution [Article]
(MDPI, 2019-09)In this paper, we propose a bimodal extension of the Birnbaum–Saunders model by including an extra parameter. This new model is termed flexible Birnbaum–Saunders (FBS) and includes the ordinary Birnbaum–Saunders (BS) and ...
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Necessary and sufficient optimality conditions for vector equilibrium problems on Hadamard manifolds [Article]
(MDPI, 2019-08)The aim of this paper is to show the existence and attainability of Karush-Kuhn-Tucker optimality conditions for weakly efficient Pareto points for vector equilibrium problems with the addition of constraints in the novel ...
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A new class of tests for multinormality with i.i.d. and garch data based on the empirical moment generating function [Article]
(Springer, 2019-06)We generalize a recent class of tests for univariate normality that are based on the empirical moment generating function to the multivariate setting, thus obtaining a class of affine invariant, consistent and easy-to-use ...
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On location-allocation problems for dimensional facilities [Article]
(Springer, 2019)This paper deals with a bilevel approach of the location-allocation problem with dimensional facilities. We present a general model that allows us to consider very general shapes of domains for the dimensional facilities ...
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New models for the location of controversial facilities: A bilevel programming approach [Article]
(Elsevier, 2019-07)Motivated by recent real-life applications in Location Theory in which the location decisions generate controversy, we propose a novel bilevel location model in which, on the one hand, there is a leader that chooses among ...
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Generalized modified slash Birnbaum–Saunders distribution [Article]
(MDPI, 2018)In this paper, a generalization of the modified slash Birnbaum-Saunders (BS) distribution is introduced. The model is defined by using the stochastic representation of the BS distribution, where the standard normal ...
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Heliostat field cleaning scheduling for Solar Power Tower plants: a heuristic approach [Article]
(Elsevier, 2019-02-01)Soiling of heliostat surfaces due to local climate has a direct impact on their optical efficiency and therefore a direct impact on the productivity of the Solar Power Tower plant. Cleaning techniques applied are dependent ...
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Railway traffic disturbance management by means of control strategies applied to operations in the transit system [Article]
(WIT Press, 2018)Railway systems in metropolitan areas support a high density of daily traffic that is exposed to different types of disturbances in the service. An interesting topic in the literature is to obtain action protocols in the ...
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A discretization result for some optimization problems in framework spaces with polyhedral obstacles and the Manhattan metric [Article]
(Elsevier, 2018-07)In this work we consider the shortest path problem and the single facility Weber location problem in any real space of finite dimension where there exist different types of polyhedral obstacles or forbidden regions. These ...
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Optimality and duality on Riemannian manifolds [Article]
(Mathematical Society of the Republic of China, 2018-10)Our goal in this paper is to translate results on function classes that are characterized by the property that all the Karush-Kuhn-Tucker points are efficient solutions, obtained in Euclidean spaces to Riemannian manifolds. ...
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Epigenetic features of human telomeres [Article]
(Oxford University Press, 2018)Although subtelomeric regions in humans are heterochromatic, the epigenetic nature of human telomeres remains controversial. This controversy might have been influenced by the confounding effect of subtelomeric regions and ...
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Mathematical programming formulations for the efficient solution of the k-sum approval voting problem [Article]
(Elsevier, 2018-10)In this paper we address the problem of electing a committee among a set of m candidates and on the basis of the preferences of a set of n voters. We consider the approval voting method in which each voter can approve as ...
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An optimization tool to design the field of a solar power tower plant allowing heliostats of different sizes [Article]
(Wiley, 2017)The design of a Solar Power Tower plant involves the optimization of the heliostat field layout. Fields are usually designed to have all heliostats of identical size. Although the use of a single heliostat size has been ...
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Minimum penalized φ-divergence estimation under model misspecification [Article]
(MDPI, 2018-04-30)This paper focuses on the consequences of assuming a wrong model for multinomial data when using minimum penalized φ-divergence, also known as minimum penalized disparity estimators, to estimate the model parameters. These ...
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Cost-sensitive feature selection for support vector machines [Article]
(Elsevier, 2018-03)Feature Selection (FS) is a crucial procedure in Data Science tasks such as Classification, since it identifies the relevant variables, making thus the classification procedures more interpretable and more effective by ...