Scientific articles

Adrián Hernández and José María Amigó (Universidad Miguel Hernández de Elche)
Abstract: Deep learning models and graphics processing units have completely transformed the field of machine learning. Recurrent neural networks and long short-term memories have been successfully used to model and predict complex systems. However, these classic models do not perform sequential reasoning, a process that […]

José María Amigó, Roberto Dale (Universidad Miguel Hernández de Elche) and Piergiulio Tempesta (Departamento de Física Teórica, Universidad Complutense de Madrid and Instituto de Ciencias Matemáticas)
Abstract: Permutation entropy measures the complexity of a deterministic time series via a data symbolic quantization consisting of rank vectors called ordinal patterns or simply permutations. Reasons for the increasing […]

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 […]

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 […]

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 […]

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 […]

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 […]

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 […]

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 […]

[: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 […]