Browsing by Author "García Villoria, Alberto"
Now showing items 1-20 of 54
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A branch and bound algorithm for the response time variability problem
García Villoria, Alberto; Corominas Subias, Albert; Delorme, Xavier; Alexandre, Dolgui; Wieslaw, Kubiak; Pastor Moreno, Rafael (Editorial Board, 2012-06-22)
Article
Restricted access - publisher's policyThe response time variability problem (RTVP) is an NP-hard scheduling problem that has been studied intensively recently and has a wide range of real-world applications in mixed-model assembly lines, multithreaded computer ... -
A heuristic method to design autonomous village electrification projects with renewable energies
Ranaboldo, Matteo; García Villoria, Alberto; Ferrer Martí, Laia; Pastor Moreno, Rafael (2014-08-14)
Article
Restricted access - publisher's policySystems relying on renewable energies demonstrated to be a reliable and sustainable option to electrify isolated communities autonomously. Hybrid systems that combine different energy resources and distribution microgrids ... -
A meta-heuristic method to design off-grid community electrification projects with renewable energies
Ranaboldo, Matteo; García Villoria, Alberto; Ferrer Martí, Laia; Pastor Moreno, Rafael (2015)
Article
Open AccessThe design of off-grid electrification projects considering hybrid systems and distribution microgrids is a complex task that requires the use of decision support tools. Most of existing tools focus on the design of hybrid ... -
A MILP model to design hybrid wind-photovoltaic isolated rural electrification projects in developing countries
Ferrer Martí, Laia; Domenech Léga, Bruno; García Villoria, Alberto; Pastor Moreno, Rafael (Elsevier, 2013-04-16)
Article
Restricted access - publisher's policyElectrification systems based on the use of renewable energy sources are a suitable option for providing electricity to isolated communities autonomously. Wind and hybrid wind–photovoltaic (PV) systems are increasingly ... -
A multistage graph-based procedure for solving a just-in-time flexible job-shop scheduling problem with machine and time-dependent processing costs
Corominas Subias, Albert; García Villoria, Alberto; González Vargas, Néstor Andrés; Pastor Moreno, Rafael (2018-04-01)
Article
Open AccessThis paper deals with a new flexible job-shop scheduling problem in which the objective function to be minimised is the sum of the earliness and tardiness costs of the jobs and the costs of the operations required to perform ... -
A novel algorithm for isolated electrification projects
Ranaboldo, Matteo; García Villoria, Alberto; Ferrer Martí, Laia; Pastor Moreno, Rafael (2015-05-04)
Research report
Open AccessIn this report it is proposed a metaheuristic procedure to support the design of stand - alone commun ity electrification projects. In particular, the solution returned by the procedure ... -
A parametric multi-start algorithm for solving the Response Time Variability Problem
Corominas Subias, Albert; García Villoria, Alberto; Pastor Moreno, Rafael (2009-06-08)
Conference lecture
Restricted access - publisher's policy -
A parametric multi-start algorithm for solving the Response Time Variability Problem
Corominas Subias, Albert; García Villoria, Alberto; Pastor Moreno, Rafael (2010-01-01)
Article
Restricted access - publisher's policy -
A survey of the parallel assembly lines balancing problem
Aguilar Gamarra, Harry Nick; García Villoria, Alberto; Pastor Moreno, Rafael (2020-12)
Article
Open AccessAssembly lines are mass production systems which are significant in the industrial production of both standard and customised products. Currently, industrial companies offer several products and it is common for an assembly ... -
A tool for the puschasing decisions making from suppliers and the pre-sales satisfaction in an online sales campaing
Pastor Moreno, Rafael; García Villoria, Alberto (2021-02-09)
Article
Open AccessWe conduct a study of an outlet company decision problem that occurs when the company launches an online sales campaign. At the end of the campaign, the company has to decide which presales to customers are satisfied and ... -
Ad-hoc heuristic for design of wind-photovoltaic electrification systems, including management constraints
García Villoria, Alberto; Domenech Léga, Bruno; Ferrer Martí, Laia; Juanpera Gallel, Marc; Pastor Moreno, Rafael (2020-12)
Article
Open AccessIsolated electrification systems based on renewable energy are a suitable option for providing many rural communities in developing countries with access to electricity. In particular, the design of wind-photovoltaic systems ... -
CLARA: A novel clustering-based resource-allocation mechanism for exploiting low-availability complementarities of voluntarily contributed nodes
Gonzalo, Sergio; Marques Puig, Joan Manuel; García Villoria, Alberto; Panadero Martínez, Javier; Calvet, Laura (Elsevier, 2022-03-01)
Article
Open AccessVolunteer Computing is a type of large-scale distributed system formed aggregating computers voluntarily donated by volunteers. These computers are usually off-the-self heterogeneous resources belonging to different ... -
Combining matheuristics and MILP to solve the accessibility windows assembly line balancing problem level 2 (AWALBP-L2)
Calleja Sanz, Gema; Corominas Subias, Albert; García Villoria, Alberto; Pastor Moreno, Rafael (2014-08-01)
Article
Restricted access - publisher's policyWe propose an approach combining a matheuristic and a MILP model to solve the variant Level 2 of the Accessibility Windows Assembly Line Balancing Problem (AWALBP-L2). This is a novel problem that arises in those real-world ... -
Enhanced MILP model for the Accessibility Windows Assembly Line Balancing Problem (AWALBP)
Calleja Sanz, Gema; Corominas Subias, Albert; García Villoria, Alberto; Pastor Moreno, Rafael (2012)
Conference report
Restricted access - author's decisionThe Accessibility Windows Assembly Line Balancing Problem (AWALBP) arises in those assembly lines where, as opposed to traditional assembly lines, the dimensions of the workpieces are larger than the width of the ... -
Equilibrado de líneas de montaje con ventanas de visibilidad. Descripción del problema y procedimiento heurístico de resolución
Calleja Sanz, Gema; Corominas Subias, Albert; García Villoria, Alberto; Pastor Moreno, Rafael (2014-09)
Article
Restricted access - publisher's policyAssembly line balancing problems (ALBPs) arise when designing or modifying an assembly or production line and usually consist in assigning the tasks to the workstations along the line in order to meet some given objectives. ... -
Erratum to “A solution procedure for type E simple assembly line balancing problem"
García Villoria, Alberto; Pastor Moreno, Rafael (2013-10-01)
Article
Restricted access - publisher's policyThe objective of SALBP-E is to minimize the product on the number of workstations by the cycle time. Recently Wei and Chao [Comput. Ind. Eng. 61 (2011) 824–830] have proposed an exact procedure for solving this problem. ... -
Evaluating optimization models to solve SALBP
Pastor Moreno, Rafael; Ferrer Martí, Laia; García Villoria, Alberto (Springer Verlag, 2007-08)
Article
Open AccessThis work evaluates the performance of constraint programming (CP) and integer programming (IP) formulations to solve the Simple Assembly Line Balancing Problem (SALBP) exactly. Traditionally, its exact solution by CP or ... -
Exact and Heuristic Approaches for the Visibility Windows Assembly Line Balancing Problem (VWALBP)
Calleja Sanz, Gema; Corominas Subias, Albert; García Villoria, Alberto; Pastor Moreno, Rafael (2011)
Conference report
Restricted access - author's decisionIn this paper, we consider the problem that we name Visibility Windows Assembly Line Balancing Problem (VWALBP) [1], which arises in some actual automated production lines. In contrast to traditional assembly lines, the ... -
Exact and non-exact procedures for solving the response time variability problem (RTVP)
García Villoria, Alberto (Universitat Politècnica de Catalunya, 2010-07-05)
Doctoral thesis
Open AccessCuando se ha de compartir un recurso entre demandas (de productos, clientes, tareas, etc.) competitivas que requieren una atención regular, es importante programar el derecho al acceso del recurso de alguna forma justa de ... -
Existence and sizing of buffers in parallel assembly lines with multi-line workstations and different cycle times
Aguilar Gamarra, Harry Nick; Pastor Moreno, Rafael; García Villoria, Alberto (2021-04-21)
Article
Open AccessParallel Assembly Lines with multi-line stations (PALBs) have been widely studied in recent years because PALBs can help improve the efficiency of a production system. However, the need of buffers has not been considered ...