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Krause, J., Burgard, J.P., Morales, D. (2022) “ℓ2 -penalized approximate likelihood inference in logit mixed models for regional prevalence estimation under covariate rank-deficiency”, Metrika, 85 (4):459–489

Joscha Krause, Jan Pablo Burgard (Department of Economic and Social Statistics, Trier University) and Domingo Morales (Operations Research Center, University Miguel Hernández of Elche)
Abstract: Regional prevalence estimation requires the use of suitable statistical methods on epidemiologic data with substantial local detail. Small area estimation with medical treatment records as covariates marks a promising combination for […]

By salonso, ago

Valero-Carreras, D., Aparicio, J., Guerrero, N.M. (2022) “Multi-output Support Vector Frontiers”, Computers and Operations Research, 143:105765

Daniel Valero, Juan Aparicio and Nadia Guerrero (Operations Research Center, University Miguel Hernández of Elche)
Abstract: In this paper, we show that both Free Disposal Hull (FDH) and Data Envelopment Analysis (DEA), which are well-known modern techniques for efficiency measurement, can be seen as particular cases of a more general model based upon Support Vector Regression […]

By salonso, ago

Aparicio, J., Perelman, S., Santín, D.. (2022) “Comparing the evolution of productivity and performance gaps in education systems through DEA: an application to Latin American countries”, Operational Research, 22 (2):1443–1477

Juan Aparicio (Operations Research Center, University Miguel Hernández of Elche), Sergio Perelman (HEC-Management School, University of Liège) and Daniel Santín (Department of Applied Economics, Public Economics and Political Economy and Complutense Institute of Economic Analysis, Complutense University of Madrid)
Abstract: The main objective of this paper is to propose a tool for measuring the productivity and […]

By salonso, ago

González, M., López-Espín, J.J., Aparicio, J., Talbi, E.-G. (2022) “A hyper-matheuristic approach for solving mixed integer linear optimization models in the context of data envelopment analysis”, PeerJ Computer Science, 8:e828

Martín González, José Juan López, Juan Aparicio (Operations Research Center, University Miguel Hernández of Elche) and  Emna Talbi (INRIA, Université des Sciences et Technologies de Lille)
Abstract: Mixed Integer Linear Programs (MILPs) are usually NP-hard mathematical programming problems, which present difficulties to obtain optimal solutions in a reasonable time for large scale models. Nowadays, metaheuristics are […]

By salonso, ago

Dynamics of stochastic nonlocal reaction-diffusion equations driven by multiplicative noise

Título: Dynamics of stochastic nonlocal reaction-diffusion equations driven by multiplicative noise
Ponente: Jiaohui Xu (Dpto. Ecuaciones Diferenciales y Análisis Numérico, Universidad de Sevilla)
Organizador: José Valero
Fecha: Lunes 28 de marzo de 2022 a las 12:00 horas.
Lugar: Aula de Teoría 0.2 CIO
Abstract: This talk deals with fractional stochastic nonlocal partial differential equations driven by multiplicative noise. We first prove the existence and uniqueness […]

By salonso, ago

International Meeting on Functional Analysis and Continuous Optimization

The International Meeting on Functional Analysis and Continuous Optimization, in honor of Professor Juan Carlos Ferrando on occasion of his 65 birthday, will be held 16-17 June 2022, in Elche (Spain). This Meeting is jointly organized by the Operations Research Center (Centro de Investigación Operativa, CIO) and the Departament of Statistics, Mathematics and Informatics of […]

By salonso, ago