Buscar
Mostrando ítems 1-10 de 198
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
Estimation of Particulate Matter Contributions from Desert Outbreaks in Mediterranean Countries (2015–2018) Using the Time Series Clustering Method
(MDPI, 2020-12-23)
North African dust intrusions can contribute to exceedances of the European PM10 and PM2.5 limit values and World Health Organisation standards, diminishing air quality, and increased mortality and morbidity at higher ...
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
Impact of soft-hydrothermal pre-treatments on the olive mill solid waste characteristics and its subsequent amaerobic digestion
(Springer, 2020-06-04)
The aim of this study was to investigate the effect of a soft-hydrothermal pre-treatment (SHP) on olive mill solid waste (OMSW) and its subsequent anaerobic digestion (AD). OMSW was pre-treated in an autoclave at temperatures ...
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
Analysis of an aggregate loss model in a Markov renewal regime
(ELSEVIER SCIENCE INC, 2020-12-22)
In this article we consider an aggregate loss model with dependent losses. The loss oc- currence process is governed by a two-state Markovian arrival process ( MAP 2 ), a Markov renewal process that allows for (1) correlated ...
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
Child-To-Parent Violence: Which Parenting Style Is More Protective? A Study with Spanish Adolescents
(SAGE, 2019-04-12)
The link between parenting style and violent behavior during adolescence has become a relevant topic of research over the last few years. In order to deepen the understanding of this relationship, the aim of the present ...