Recent Submissions

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    Solutions of optimization problems on Hadamard manifolds with Lipschitz functions  [Article]

    Ruiz Garzón, Gabriel; Osuna Gómez, Rafaela; Rufián Lizana, Antonio (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]

    Maravillo Gómez, Héctor; Camacho Vallejo, José Fernando; Puerto Albandoz, Justo; Labbé, Martine (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]

    Bernal García, Ainara; Grimaldi Puyana, Moisés; Pérez Villalba, Marta; Fernández Ponce, José María (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]

    López Blázquez, José Fernando; Su, Nan-Cheng; Wesołowski, Jacek (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]

    Blanco Izquierdo, Víctor; Japón Sáez, Alberto; Puerto Albandoz, Justo (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]

    Martínez Flórez, Guillermo; Barranco Chamorro, Inmaculada; Bolfarine, Heleno; Gómez Geraldo, Héctor (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]

    Ruiz Garzón, Gabriel; Osuna Gómez, Rafaela; Ruiz Zapatero, Jaime (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]

    Henze, Norbert; Jiménez Gamero, María Dolores (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]

    Mallozzi, Lina; Puerto Albandoz, Justo; Rodríguez Madrena, Moisés (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]

    Labbé, Martine; Leal Palazón, Marina; Puerto Albandoz, Justo (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]

    Reyes Rocabado, Jimmy; Barranco Chamorro, Inmaculada; Gallardo Mateluna, Diego; Gómez Geraldo, Héctor (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]

    Ashley, Thomas Ian; Carrizosa Priego, Emilio José; Fernández Cara, Enrique (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]

    Ortega Riejos, Francisco Alonso; Mesa López-Colmenar, Juan Antonio; Pozo Montaño, Miguel Ángel; Puerto Albandoz, Justo (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]

    Puerto Albandoz, Justo; Rodríguez Madrena, Moisés (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]

    Ruiz Garzón, Gabriel; Osuna Gómez, Rafaela; Rufián Lizana, Antonio; Hernández Jiménez, Beatriz (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]

    Cubiles de la Vega, María Dolores; Barroso Ceballos, Sonia Inés; Vaquero Sedas, María Isabel; Enguix González, Alicia; Aguilera López, Andrés; Vega Palas, Miguel Ángel (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]

    Ponce López, Diego; Puerto Albandoz, Justo; Ricca, Federica; Scozzari, Andrea (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]

    Carrizosa Priego, Emilio José; Domínguez Bravo, Carmen Ana; Fernández Cara, Enrique; Quero García, Manuel (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]

    Alba Fernández, María Virtudes; Jiménez Gamero, María Dolores; Ariza López, Francisco Javier (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]

    Benítez Peña, Sandra; Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Ramírez Cobo, Josefa (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 ...

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