Chain recurrence and structure of ω-limit sets of multivalued semiflows (2020), Communications on pure and applied analysis 19 (4), pp. 2197–2217

Olexiy V. Kapustyan (Taras Shevchenko National University of Kyiv), Pavlo O. Kasyanov (Institute for Applied System Analysis National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute) and José Valero (Universidad Miguel Hernández de Elche)
Abstract: We study properties of ω-limit sets of multivalued semiflows like chain recurrence or the existence of cyclic chains. First, we prove […]

Defining a new graph inefficiency measure for the proportional directional distance function and introducing a new Malmquist productivity index (2020), European Journal of Operational Research 281, pp. 222-230

Jesus T. Pastor (University Miguel Hernandez of Elche), C. A. Knox Lovell (University of Queensland) and Juan Aparicio (University Miguel Hernandez of Elche)
Abstract: A natural multiplicative efficiency measure for the Constant Returns to Scale proportional directional distance function (pDDF) is derived, relating its associated linear program to that of the well-known output-oriented radial efficiency measurement model. Based on this […]

A Continuous Competitive Facility Location and Design Problem for Firm Expansion (2020), Springer Nature Switzerland, pp. 1013–1022,

Bogl ́arka G.-T ́oth (University of Szeged), Laura Anton-Sanchez (Miguel Hernández University), José Fernández (University of Murcia), Juana L. Redondo (University of Almería) and Pilar M. Ortigosa (University of Almería)
Abstract: A firm wants to expand its presence in a given geographical region. The available budget can be invested in opening a new facility and/or modifying the qualities of the existing firm-owned facilities. The firm […]

Customer eXperience: A Bridge Between Service Science and Human-Computer Interaction (2020), T. Ahram et al. (Eds.): IHSED 2019, AISC 1026, pp. 385–390.

Virginica Rusu (Universidad de Playa Ancha), Cristian Rusu (Pontificia Universidad Católica de Valparaíso), Federico Botella (Universidad Miguel Hernández de Elche), Daniela Quiñones (Pontificia Universidad Católica de Valparaíso), Camila Bascur (Pontificia Universidad Católica de Valparaíso) and Virginia Zaraza Rusu (Pontificia Universidad Católica de Valparaíso).
Abstract:  User eXperience (UX) and Usability are key concepts in Human-Computer Interaction (HCI). Customer eXperience […]

Multi-objective evolutionary algorithms for a reliability location problem (2020), European Journal of Operational Research Volume 283, P. 83-93

Javier Alcaraz (University Miguel Hernández of Elche), Mercedes Landete (University Miguel Hernández of Elche), Juan F. Monge (University Miguel Hernández of Elche) and José L. Sainz-Pardo (University Miguel Hernández of Elche).
Abstract: Some location problems with unreliable facilities present two different objectives, one consisting of minimizing the opening and transportation costs if none of the facilities fail and another […]

Introducing cross-productivity: A new approach for ranking productive units over time in Data Envelopment Analysis (2020), Computers & Industrial Engineering Volume 144, 106456

Juan Aparicio (University Miguel Hernández of Elche), Lidia Ortiz (University Miguel Hernández of Elche), Jesus T. Pastor (University Miguel Hernández of Elche) and Jon M. Zabala-Iturriagagoitia (University of Deusto).
Abstract: Cross-efficiency has been developed for the evaluation of cross-sectional data in Data Envelopment Analysis. This paper extends cross-efficiency evaluation introducing the concept of cross-productivity. The extension proposed […]

Small area estimation under a measurement error bivariate Fay–Herriot model (2020), Statistical Methods & Applications

Jan Pablo Burgard  (Trier University), María Dolores Esteban (University Miguel Hernández of Elche), Domingo Morales (University Miguel Hernández of Elche) and Agustín Pérez (University Miguel Hernández of Elche).
Abstract: The bivariate Fay–Herriot model is an area-level linear mixed model that can be used for estimating the domain means of two correlated target variables. Under this model, the dependent variables are direct estimators […]

Some matheuristic algorithms for multistage stochastic optimization models with endogenous uncertainty and risk management (2020), European Journal of Operational Research 285. 988–1001

[:es]Laureano F. Escudero (Rey Juan Carlos University of Madrid), M. Araceli Garín (University of País Vasco), Juan F. Monge (Miguel Hernández University of Elche) and Aitziber Unzueta (University of País Vasco).
Abstract: Two matheuristic decomposition algorithms are introduced. The first one is a Progressive Hedging type so-named Regularized scenario Cluster Progressive Algorithm. The second one is a Frank-Wolfe PH type so-named Regularized […]

Evaluation of ontology structural metrics based on public repository data, Briefings in Bioinformatics, 21(2), 2020, 473–485

[:es]Manuel Franco (University of Murcia), Juana María Vivo (University of Murcia), Manuel Quesada-Martínez (Miguel Hernández University), Astrid Duque-Ramos (University of Antioquia) and Jesualdo Tomás Fernández-Breis (University of Murcia).
Abstract: The development and application of biological ontologies have increased significantly in recent years. These ontologies can be retrieved from different repositories, which do not provide much information about quality aspects of the ontologies. In the […]

Multilevel simultaneous equation model: A novel specification and estimation approach, Journal of Computational and Applied Mathematics 366 (1)

[:es]Rocío Hernández-Sanjaime (University Miguel Hernández of Elche), Martín González (University Miguel Hernández of Elche) and Jose J. López-Espín (University Miguel Hernández of Elche)
Abstract: Conventional simultaneous equation models assume that the error terms are serially independent. In some situations, data may present hierarchical or grouped structure and this assumption may be invalid. A new multivariate model referred […]