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Article
A mathematical programming approach to overlapping community detection
(Elsevier, 2022-06-02)
We propose a new optimization model to detect overlapping communities in networks. The model elaborates suggestions contained in Zhang et al. (2007), in which overlapping communities were identified through the use of a ...
Article
Robust positioning of service units
(Taylor & Francis, 2003)
In this paper, we address the problem of locating mobile service units to cover random incidents. The model does not assume complete knowledge of the probability distribution of the location of the incident to be covered. ...
Article
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 ...
Article
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 ...
Article
Ordered median hub location problems with capacity constraints
(Elsevier, 2015-06-15)
The Single Allocation Ordered Median Hub Location problem is a recent hub model introduced in [36] J. Puerto, A.B. Ramos, and A.M. Rodríguez-Chía. Single-Allocation Ordered Median Hub Location Problems. Computers and ...
Article
Modelos de localización continua
(Sociedad Española de Matemática Aplicada, 2004)
En este trabajo se revisan tres modelos de problemas de localización continua: (1) un problema general de localización con respecto a regiones de demanda; (2) el problema de la mediana ordenada y (3) un problema ...
PhD Thesis
Avances sobre el problema de localización continua de un único centro
(1998)
"El objetivo de la Teoría de la Localización consiste en determinar una o varias localizaciones para uno o más servicios con respecto a un conjunto de ubicaciones conocidas a priori, que usualmente denominamos puntos de ...
Article
The bi-criteria doubly weighted center-median path problem on a tree
(Wiley, 2006-07)
Given a tree network T with n nodes, let PL be the subset of all discrete paths whose length is bounded above by a prespecified value L. We consider the location of a path-shaped facility P ∈ PL, where customers are represented ...
Article
New results on minimax regret single facility ordered median location problems on networks
(Springer, 2007)
We consider the single facility ordered median location problem with uncertainty in the parameters (weights) defining the objective function. We study two cases. In the first case the uncertain weights belong to a region ...
Chapter of Book
Location problems with multiple criteria
(Springer, 2015)
This chapter analyzes multicriteria continuous, network, and discrete location problems. In the continuous framework, we provide a complete description of the set of weak Pareto, Pareto, and strict Pareto locations for a ...