José Manuel Framiñán Torres
University of Seville
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Archive | 2015
Paz Pérez González; José Manuel Framiñán Torres
Interfering jobs problems (or multi agents scheduling problems) are an emergent topic in the scheduling literature. In these decision problems, two or more sets of jobs have to be scheduled, each one with its own criteria. More specifically, we focus on a problem in which jobs belonging to two sets have to be scheduled in a single machine in order to minimize the total flowtime of the jobs in one set, while the total flowtime of the jobs in the other set should not exceed a given constant
annual conference on computers | 2009
José Manuel Molina Pariente; José Manuel Framiñán Torres; Tomas Gomez Cia
XI Congreso de Ingeniería de Organización: Madrid, 5-7 de Septiembre de 2007, 2007, págs. 1591-1600 | 2007
Paz Pérez González; José Manuel Framiñán Torres; Pedro L. González-R; José Miguel León Blanco; Rafael Ruiz Usano
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X Congreso de Ingeniería de Organización: Valencia, 7-8 de septiembre, 2006, págs. 1-6 | 2006
José Miguel León Blanco; José Manuel Framiñán Torres; Pedro Luis González Rodríguez; Paz Pérez González
XIII Congreso de Ingeniería de Organización: Barcelona, 2-4 de Septiembre de 2009, 2009, págs. 1498-1506 | 2009
Paz Pérez González; José Manuel Framiñán Torres; José J. Molina Parente; José L. Andrade Pineda
ϵ. This problem is known to be weakly NP-hard, and, in the literature, a dynamic programming (DP) algorithm has been proposed to find optimal solutions. In this paper, we first analyse the distribution of solutions of the problem in order to establish its empirical hardness. Next, a novel encoding scheme and a set of properties associated to the neighbourhood of this scheme are presented. These properties are used to develop both exact and approximate methods, i.e. a branch and bound (B&B) method, several constructive heuristics, and different versions of a genetic algorithm (GA). The computational experience carried out shows that the proposed B&B is more efficient than the existing DP algorithm. The results also show the advantages of the proposed encoding scheme, as the approximate methods yield close-to-optimum solutions for big-sized instances where exact methods are not feasible.
XIII Congreso de Ingeniería de Organización | 2009
José Manuel Molina Pariente; José Manuel Framiñán Torres; Pedro Luis González Rodríguez; José L. Andrade Pineda
VIII Congreso de Ingeniería de Organización: Leganés, 9-10 Septiembre de 2004, 2004, ISBN 84-688-7879-0, págs. 437-446 | 2004
José Manuel Framiñán Torres; Carlos Luis Parra Calderón; Rafael Ruiz Usano; Pedro Luis González Rodríguez
IV Congreso de Ingeniería de Organización: Sevilla, 13-14 de Septiembre de 2001, 2001 | 2001
Adolfo Crespo Márquez; Antonio Sánchez Herguedas; Pedro Moreu de León; José Manuel Framiñán Torres; José Miguel León Blanco
Innovando en la docencia en ingeniería, 2011, ISBN 978-84-86849-75-7, págs. 117-130 | 2011
Pedro L. González-R; José Manuel Framiñán Torres; José Miguel León Blanco; Paz Pérez González; Rafael Ruiz Usano
XIV Congreso de Ingeniería de Organización: Donostia-San Sebastián, 8-10 de Septiembre de 2010, 2010, págs. 810-819 | 2010
Manuel Alejandro Dios Rubio; José Manuel Molina Pariente; José Manuel Framiñán Torres; Roberto Dominguez Cañizares