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Mostrando ítems 1-10 de 36
Artículo
On Covering Methods for D.C. Optimization
(Springer, 2000-11-01)
Covering methods constitute a broad class of algorithms for solving multivariate Global Optimization problems. In this note we show that, when the objective f is d.c. and a d.c. decomposition for f is known, the computational ...
Artículo
A biobjective method for sample allocation in stratified sampling
(Elsevier, 2007-03-01)
The two main and contradicting criteria guiding sampling design are accuracy of estimators and sampling costs. In stratified random sampling, the sample size must be allocated to strata in order to optimize both objectives. ...
Artículo
A DC biobjective location model
(Springer, 2002)
In this paper we address the biobjective problem of locating a semiobnoxious facility, that must provide service to a given set of demand points and, at the same time, has some negative effect on given regions in the ...
Artículo
Two-group classification via a biobjective margin maximization model
(ELSEVIER SCIENCE BV, 2006-09-16)
In this paper we propose a biobjective model for two-group classification via margin maximization, in which the margins in both classes are simultaneously maximized. The set of Pareto-optimal solutions is described, yielding ...
Artículo
Solving nonconvex planar location problems by nite dominating sets
(Springer, 2000-10)
It is well-known that some of the classical location problems with polyhedral gauges can be solved in polynomial time by nding a fi nite dominating set, i.e. a finite set of candidates guaranteed to contain at least one ...
Artículo
Pareto-Optimality in Linear Regression
(Academic Press Inc. Elsevier Science, 2002-05-25)
In this paper the linear regression problem is studied in the context of vector optimization theory. The set of Pareto-optimal solutions is represented as the set of optimal solutions to certain optimization problems, and ...
Tesis Doctoral
Programación matemática para las máquinas de vector de apoyo: mathematical programming for support vector machines
(2006)
En esta Tesis Doctoral, presentamos algunas propuestas en las que las herramientas de la Programación Matemática se usan para obtener clasificadores que tengan algunas propiedades interesantes. En aplicaciones prácticas, ...
Artículo
An exact global optimization method for deriving weights from pairwise comparison matrices
(Springer, 2006-09-06)
Some multiple-criteria decision making methods rank actions by associating weights to the different criteria or actions, which are pairwise compared via a positive reciprocal matrix A. There is a vast literature on proposals ...
Artículo
A fractional model for locating semi-desirable facilities on networks
(ELSEVIER SCIENCE BV, 2002-01-01)
In this paper, we address the problem of locating a series of facilities on a network maximizing the average distance to population centers (assumed to be distributed in the plane) per unit transportation cost (a function ...
Artículo
Robust facility location
(Springer, 2003-11)
Let A be a nonempty finite subset of the plane representing the geographical coordinates of a set of demand points (towns, …), to be served by a facility, whose location within a given region S is sought. Assuming that the ...