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Mostrando ítems 1-10 de 28
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 ...
Tesis Doctoral
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 ...
Ponencia
Artículo
On the Muth Distribution
(Vilnius teach journals, 2015-06-02)
The Muth distribution is a continuous random variable introduced in the context of reliability theory. In this paper, some mathematical properties of the model are derived, including analytical expressions for the moment ...
Artículo
Kernel Penalized K-means: A feature selection method based on Kernel K-means
(ELSEVIER SCIENCE BV, 2015-11-20)
We present an unsupervised method that selects the most relevant features using an embedded strategy while maintaining the cluster structure found with the initial feature set. It is based on the idea of simultaneously ...
Artículo
Factores de riesgo del abandono escolar desde la perspectiva del profesorado de Educación Secundaria Obligatoria en Andalucía (España)
(Universidad de Granada, 2015)
El abandono escolar temprano (AET), supone un importante problema social al que hay que hacer frente. La Unión Europea marca como meta para 2020 situar la proporción de abandonos prematuros de la educación y formación por ...
Artículo
On the Newton method for solving fuzzy optimization problems
(Elsevier, 2015-08-01)
In this article we consider optimization problems where the objectives are fuzzy functions (fuzzy-valued functions). For this class of fuzzy optimization problems we discuss the Newton method to find a non-dominated solution. ...
Artículo
Time series clustering for estimating particulate matter contributions and its use in quantifying impacts from deserts
(Elsevier, 2015)
Source apportionment studies use prior exploratory methods that are not purpose-oriented and receptor modelling is based on chemical speciation, requiring costly, time-consuming analyses. Hidden Markov Models (HMMs) are ...