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Mostrando ítems 251-260 de 519
Artículo
Análisis de sensibilidad en el muestreo en poblaciones finitas
(Universidad de Salamanca, 2000)
Las conclusiones de un análisis estadístico dependen en gran medida de las hipótesis de partida, en general expresadas en términos de un modelo, y de las observaciones experimentales. Esta dependencia motiva la necesidad ...
Artículo
Analysis of elite soccer players’ performance before and after signing a new contract
(Public Library of Science, 2019-01)
The aim of the current study was to analyse performance differences of football players 2- years prior and the year after signing a new contract (the following year) while taking playing position, nationality, player’s ...
Artículo
Locating a semi-obnoxious covering facility with repelling polygonal regions
(ELSEVIER SCIENCE BV, 2013-11-01)
A facility is to be located in the Euclidean plane to serve certain sites by covering them closely. Simultaneously, a set of polygonal areas must be protected from the negative effects from that facility. The problem is ...
Artículo
rs-Sparse principal component analysis: A mixed integer nonlinear programming approach with VNS
(PERGAMON-ELSEVIER SCIENCE LTD, 2013-05-03)
Principal component analysis is a popular data analysis dimensionality reduction technique, aiming to project with minimum error for a given dataset into a subspace of smaller number of dimensions. In order to improve ...
Tesis Doctoral
Modelización multinivel del rendimiento académico universitario
(2015-10-29)
Los modelos multinivel permiten abordar las situaciones en las que los datos obtenidos de la investigación tienen una estructura jerárquica, de forma que los individuos se agrupan en niveles cuyas características pueden ...
Artículo
New Geological Evidence of the 1755 Lisbon Tsunami from the Rock of Gibraltar (Southern Iberian Peninsula)
(MDPI, 2021)
This paper presents the easternmost mineralogical and geochemical evidence of the 1755 Lisbon tsunami found in the Western Mediterranean. This multidisciplinary analysis of a sediment core obtained in Gibraltar (southern ...
Artículo
La Estadística Pública como apoyo a la investigación
(Asociación Española de Ciencia Regional, 2006)
Cualquier estudio o investigación sobre temas económicos, sociales y, por supuesto territoriales, requiere disponer y utilizar datos e información estadística. El artículo examina el estado actual de la producción de ...
Artículo
An optimization tool to design the field of a solar power tower plant allowing heliostats of different sizes
(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 ...
Artículo
Revisiting several problems and algorithms in continuous location with lp norms
(Springer, 2014-07)
This paper addresses the general continuous single facility location problems in finite dimension spaces under possibly different ℓp norms in the demand points. We analyze the difficulty of this family of problems and ...
Artículo
The generalized Weber problem with expected distances
(EDP Sciences, 1995-09)
In this paper we study a generalized Weber problem where both demand locations and the facility to be located may be regions and to be assumed to be distributed according to some probability measures inside each region. A ...