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Mostrando ítems 91-100 de 133
Artículo
On the norm of a dc function
(Springer, 2009-11-12)
It is well known that, if a vector-valued function can be written as difference of componentwise convex functions, the norm of such function inherits this property. In this note we show that, if the norm in use is monotonic ...
Artículo
Capítulo de Libro
Dimensionality Reduction for Classification: Comparison of Techniques and Dimension Choice
(Springer, 2008)
We investigate the effects of dimensionality reduction using different techniques and different dimensions on six two-class data sets with numerical attributes as pre-processing for two classification algorithms. Besides ...
Tesis Doctoral
Procedimientos ortogonales aplicados al Bootstrap
(2004-02-17)
La memoria se divide en ocho capítulos. En los primeros cuatro se hace una revisión del tema a tratar y se introducen las herramientas que serán utilizadas en los siguientes capítulos tales como desarrollos ortogonales ...
Artículo
Estimación predictiva del índice de Gini en poblaciones finitas bajo muestreo aleatorio simple
(Instituto Nacional de Estadística, 2004)
El estudio de características de concentración, en el ámbito del muestreo en poblaciones finitas, permite cuantificar el grado de uniformidad o equidad en el reparto de una variable sobre los elementos de la población. ...
Artículo
Dominators for multiple-objective quasiconvex maximization problems
(Springer, 2000-01-06)
In this paper we address the problem of finding a dominator for a multiple-objective maximization problem with quasiconvex functions. The one-dimensional case is discussed in some detail, showing how a Branch-and-Bound ...
Artículo
La problemática relación entre estadística y ostrácodos marinos
(Universidad de Huelva, 2005)
This paper analyses the possibilities of the statistical techniques in the treatment of marine ostracod populations, with the indication of the commonest problems observed in the different stages (sampling, laboratory ...
Artículo
Different numerical methods in the study of passive scalar transport in a pipeline x-junction
(ELSEVIER SCIENCE BV, 2009-01-01)
A computational fluid dynamic model is used to analyze the transport processes of a passive scalar generated in the mixing of two fluids or flows in a pipeline x-junction. Turbulent flow field is computed for the merging ...
Artículo
Multi-group support vector machines with measurement costs a biobjective approach
(Elsevier, 2008-03)
Support Vector Machine has shown to have good performance in many practical classification settings. In this paper we propose, for multi-group classification, a biobjective optimization model in which we consider not only ...