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Artículo
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Rank aggregation in cyclic sequences
(Springer, 2016-05-10)
In this paper we propose the problem of finding the cyclic sequence which best represents a set of cyclic sequences. Given a set of elements and a precedence cost matrix we look for the cyclic sequence of the elements which ...
Artículo
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Heuristic approaches for support vector machines with the ramp loss
(Springer, 2014-03)
Recently, Support Vector Machines with the ramp loss (RLM) have attracted attention from the computational point of view. In this technical note, we propose two heuristics, the first one based on solving the continuous relaxation ...
Artículo
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On a new NBUE property in multivariate sense: an application
(Elsevier, 2011-12-01)
Multivariate lifetime data frequently arise so it is important to consider different multivariate distributions that could be used to model aging concepts. The generalization of univariate versions has two main problems. One ...
Artículo
Artículo
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Robust facility location
(Springer, 2003-11)
Let A be a nonempty finite subset of the plane representing the geographical coordinates of a set of demand points (towns, …), to be served by a facility, whose location within a given region S is sought. Assuming that the ...
Artículo
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Parental Socialization, Social Anxiety, and School Victimization: A Mediation Model
(MDPI, 2020-03-29)
The aim of this study was to examine the relationship between parenting dimensions (involvement/acceptance vs. strictness/imposition) and school victimization, considering the possible mediating role of social anxiety. The ...
Artículo
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Primordial perturbations in kinetically dominated regimes of general relativity and hybrid quantum cosmology
(American physical society, 2021-11-18)
Scalar fields with an energy density dominated by its kinetic part may have played a relevant role in the very early stages of the Universe. Compared to the standard inflationary paradigm, they may lead to modifications ...
Tesis Doctoral
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Algunas aportaciones a los métodos de optimización del análisis clúster mediante la Descomposición en Valores Singulares (D.V.S.)
(1996)
En este trabajo se propone un procedimiento de clasificación general que permite obtener grupos naturales en conjuntos donde se sospecha que existen mas de uno. El procedimiento se basa en obtener el modelo q-factorial ...
Tesis Doctoral
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Fórmulas de cuadratura con operadores diferenciales
(1976)
En el Capítulo 1 demostramos que, para el operador diferencial L, fijados m nodos de forma arbitraria (distintas), pueden conseguirse siempre fórmulas elementales de cuadratura con grado de precisión 2n-1. En el capítulo ...
Artículo
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Location and shape of a rectangular facility in ℝn. Convexity properties. Convexity properties
(Springer, 1998-01-01)
In this paper we address a generalization of the Weber problem, in which we seek for the center and the shape of a rectangle (the facility) minimizing the average distance to a given set (the demand-set) which is not assumed ...