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Mostrando ítems 81-90 de 104
Artículo
Optimal location and design of a competitive facility
(Springer, 2004-06)
A single facility has to be located in competition with fixed existing facilities of similar type. Demand is supposed to be concentrated at a finite number of points, and consumers patronise the facility to which they are ...
Artículo
Robustez en Multidimensional Scaling
(Instituto Nacional de Estadística, 2003)
En este trabajo se presenta, mediante un estudio de simulación, una solución del problema de Multidimensional Scaling (MDS), cuando los datos aparecen perturbados por un error aleatorio. En el estudio de simulación se ...
Artículo
Influence Diagnostics in Regression with Complex Designs Through Conditional Bias
(Springer, 2005)
One of the a,rea~s of Statistics in ~ hich the influence a, nalysis has been ~ idely stu.died in the multiple linear regression model. Nevertheless, the influence diagnostics propo,sed in this context cannot be applied ...
Artículo
e-Encuestas Probabilísticas II. Los Métodos de Muestreo Probabilístico
(Instituto Nacional de Estadística, 2002)
En este trabajo se aborda fundamentalmente el estudio de las encuestas que utilizan la herramienta de Internet para su realización. En concreto su objetivo se centra en el planteamiento y desarrollo de diseños muestrales ...
Artículo
A flexible approach to location problems
(Springer, 2000-02)
When dealing with location problems we are usually given a set of existing facilities and we are looking for the location of one or several new facilities. In the classical approaches weights are assigned to existing ...
Artículo
El sesgo condicionado en el análisis de influencia: Una revisión
(RACO, 2001-05-06)
El sesgo condicionado se ha propuesto como diagn ´ostico de influencia en distintos modelos y t´ecnicas estad´ısticas. Tratando de recoger una visi ´on global de la utilidad del concepto, en este trabajo se hace una ...
Artículo
On the Selection of the Globally Optimal Prototype Subset for Nearest-Neighbor Classification
(Informs, 2007-07-20)
The nearest-neighbor classifier has been shown to be a powerful tool for multiclass classification. We explore both theoretical properties and empirical behavior of a variant method, in which the nearest-neighbor rule is ...
Artículo
Reduced bootstrap for the median
(Academia Sinica (Institute of Statistical Science), 2004-10)
In this paper we study a modified bootstrap that consists of only considering those bootstrap samples satisfying k1 ≤ νn ≤ k2, for some 1 ≤ k1 ≤ k2 ≤ n, where νn is the number of distinct original observations in the ...
Artículo
Continuous location problems and Big Triangle Small Triangle: constructing better bounds
(Springer, 2009-11)
The Big Triangle Small Triangle method has shown to be a powerful global optimization procedure to address continuous location problems. In the paper published in J. Global Optim. (37:305–319, 2007), Drezner proposes a ...
Artículo
Generalized goal programming: polynomial methods and applications
(Springer, 2002-12)
In this paper we address a general Goal Programming problem with linear objectives, convex constraints, and an arbitrary componentwise nondecreasing norm to aggregate deviations with respect to targets. In particular, ...