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Artículo
A discretizing algorithm for location problems
(ELSEVIER SCIENCE BV, 1995)
A new and simple methodology is proposed to solve both constrained and unconstrained planar continuous single-facility location problems. As particular instances, the classical location problems with mixed gauges can be ...
Artículo
Dynamically second-preferred p-center problem
(Elsevier, 2023)
This paper deals with the Dynamically Second-preferred p-center Problem (DSpP). In this problem, cus- tomers’ preferences and subsets of sites that each customer is willing to accept as service centers are taken into ...
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 ...
Artículo
Segmentation of scanning-transmission electron microscopy images using the ordered median problem
(Elsevier, 2022-01-15)
This paper presents new models for segmentation of 2D and 3D Scanning-Transmission Electron Micro- scope images based on the ordered median function. The main advantage of using this function is its good adaptability to ...
Artículo
On the exponential cardinality of FDS for the ordered p-median problem
(Elsevier, 2005)
We study finite dominating sets (FDS) for the ordered median problem. This kind of problems allows to deal simultaneously with a large number of models. We show that there is no valid polynomial size FDS for the general ...
Artículo
El conjunto eficiente en problemas de localización con normas mixtas (L p)
(Sociedad Española de Estadística e Investigación Operativa, 1991-12-18)
En el presente trabajo establecemos una nueva aproximación a la solución del problema de localización con normas mixtas a través de lasdirecciones de proyección. Probamos que el cierre octogonal de los puntos de demanda ...
Artículo
A unified approach to network location problems
(John Wiley and Sons, 1999)
In this paper we introduce a new type of single facility location problems on networks which includes as special cases most of the classical criteria in the literature. Structural results as well as a finite dominating set ...
Artículo
Dominating sets for convex functions with some applications
(Springer, 1998-02)
A number of optimization methods require as a rst step the construction of a dominating set (a set containing an optimal solution) enjoying properties such as compactness or convexity. In this note we address the problem ...
Artículo
A generalized model of equality measures in network location problems
(Elsevier, 2008-03)
In this paper, the concept of the ordered weighted averaging operator is applied to define a model which unifies and generalizes several inequality measures. For a location x, the value of the new objective function is the ...
Artículo
Solving multifacility Huff location models on networks using metaheuristic and exact approaches
(PERGAMON-ELSEVIER SCIENCE LTD, 2016-03-16)
In this paper we consider multifacility Huff facility location problem on networks. First, we introduce a slight modification of the existing mixed integer nonlinear mathematical model and confirm its validity by using the ...