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Mostrando ítems 1-7 de 7
Artículo
Gauge Distances and Median Hyperplanes
(Springer, 2001-01-01)
A median hyperplane in d-dimensional space minimizes the weighted sum of the distances from a finite set of points to it. When the distances from these points are measured by possibly different gauges, we prove the ...
Artículo
Optimal expected-distance separating halfspace
(INFORMS (Institute for Operations Research and Management Sciences), 2008-08)
One recently proposed criterion to separate two datasets in discriminant analysis, is to use a hyperplane which minimises the sum of distances to it from all the misclassified data points. Here all distances are supposed ...
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 ...
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
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 ...
Tesis Doctoral
Optimization-based methods for classification and regression problems with imprecise data
(2008)
En esta tesis, desarrollamos varias herramientas para resolver problemas de clasificación y regresión donde los elementos del conjunto de datos no son vectores de características puntuales, sino conjuntos en Rd con ciertas ...
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 ...