Scientific articles

[:es] Vincent Charles (University of Buckingham) , Juan Aparicio (University Miguel Hernández of Elche) and Joe Zhu (UWorcester Polytechnic Institute)
Abstract.  Data envelopment analysis (DEA) is a technique for identifying the best practices of a given set of decision-making units (DMUs) whose performance is categorized by multiple performance metrics that are classified as inputs and outputs. Although DEA […]

[:es]Luis Carretero (University Miguel Hernández of Elche) and José Valero (University Miguel Hernández of Elche).
Abstract.  We study a one-dimensional ordinary differential equation modelling optical conveyor belts, showing in particular cases of physical interest that periodic solutions exist. Moreover, under rather general assumptions it is proved that the set of periodic solutions is bounded.
Keywords. Ordinary differential equations; Periodic solutions; […]

[:es]Juan Aparicio (University Miguel Hernández of Elche), Jesús T. Pastor (University Miguel Hernández of Elche) and C. A. Knox Lovell (University of Queensland,).
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 outputoriented radial efficiency measurement model. Based on […]

[:es]Juan Aparicio (University Miguel Hernández of Elche), Fernando Borras (University Miguel Hernández of Elche), Lidia Ortiz (University Miguel Hernández of Elche) , Jesús T. Pastor (University Miguel Hernández of Elche) and Fernando Vidal (University Miguel Hernández of Elche).
Abstract. This paper proposes two new Luenberger-type indicators, one for measuring productivity change of decision making units in the full input–output space, […]

[: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 as to […]

[:es]Mercedes Landete (University Miguel Hernández of Elche), Alfredo Marín (University of Murcia) and José Luis Sainz-Pardo (University Miguel Hernández of Elche).
Abstract. In this paper, a novel problem in transshipment networks has been proposed. The main aims of this pa- per are to introduce the problem and to give useful tools for solving it both in exact and approximate ways. In […]

Jenny Morales (Autonomous University of Chile), Cristian Rusu (Pontifical Catholic University of Chile), Federico Botella (Miguel Hernández University of Elche) and Daniela Quiñones (Pontifical Catholic University of Chile).
Abstract. Programmers use various software development artifacts in their work, such as programming environments, design documents, and programming codes. These software artifacts can be studied and improved based on usability and User eXperience (UX) […]

[:es]José L. Ruiz (Miguel Hernández University of Elche) and Inmaculada Sirvent (Miguel Hernández University of Elche).
Abstract. Data Envelopment Analysis (DEA) is extended to the evaluation of performance of organizations within the framework of the implementation of plans for improvements that set management goals. Managers usually set goals without having any evidence that they will be achievable at the moment […]

María Jesús Gisbert (Miguel Hernández University of Elche), María Josefa Cánovas (Miguel Hernández University of Elche), Juan Parra (Miguel Hernández University of Elche) and Fco. Javier Toledo (Miguel Hernández University of Elche).
Abstract. The present paper is devoted to the computation of the Lipschitz modulus of the optimal value function restricted to its domain in linear programming under different types of […]

María Victoria Herranz (Miguel Hernández University of Elche), Diego Napp (Universidade de Aveiro) and Carmen Perea (Miguel Hernández University of Elche).
Abstract. In this paper we study two different concatenation schemes of twodimensional (2D) convolutional codes. We consider Fornasini–Marchesini state space representation of 2D linear systems to describe our concatenated codes. Also we present upper and lower bounds on the […]