RT journal article
T1 The stratified p-center problem
A1 Albareda-Sambola, Maria
A1 Martínez Merino, Luisa Isabel
A1 Rodríguez Chía, Antonio Manuel
A2 Estadística e Investigación Operativa
K1 Location
K1 p -Center
K1 Discrete optimization
K1 Sample average approximation
AB This work presents an extension of the discrete p -center problem. In this new model, called Stratified p-Center Problem (SpCP), the demand is concentrated in a set of sites and the population of these sites is divided into different strata depending on the kind of service that they require. The aim is to locate p centers to cover the different types of services demanded minimizing the weighted average of the largest distances associated with each of the different strata. In addition, it is considered that more than one stratum can be present at each site. Different formulations, valid inequalities and preprocessings are developed and compared for this problem. An application of this model is presented in order to implement a heuristic approach based on the Sample Average Approximation method (SAA) for solving the probabilistic p-center problem in an efficient way.
PB Elsevier
SN 0305-0548
YR 2019
FD 2019
LK http://hdl.handle.net/10498/31356
UL http://hdl.handle.net/10498/31356
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 11-nov-2026