Now showing items 1-20 of 245

    • A branch-and-cut algorithm for the multidepot rural postman problem 

      Fernández Aréizaga, Elena; Laporte, Gilbert; Rodríguez Pereira, Jessica (2018-03)
      Article
      Open Access
      This paper considers the Multidepot Rural Postman Problem, an extension of the classical Rural Postman Problem in which there are several depots instead of only one. The aim is to construct a minimum cost set of routes ...
    • A checkpoint/restart directive-based approach 

      Maroñas Bravo, Marcos (Universitat Politècnica de Catalunya, 2017)
      Master thesis
      Open Access
      Covenantee:   Barcelona Supercomputing Center
      Exascale platforms require programming models incorporating support for resilience capabilities since the huge number of components they are expected to have is going to increase the number of errors. Checkpoint/restart ...
    • A combination of the Knapsack algorithm and MIVES for choosing optimal temporary housing site locations: a case study in Tehran 

      Pons Valladares, Oriol; Fuente Antequera, Albert de la; Hosseini, Seyed Mohammad Amin (Elsevier, 2017-10-13)
      Article
      Open Access
      In the aftermath of natural disasters, decision-makers often clash when tackling the challenge of choosing suitable temporary housing unit (THU) site locations. Site location considerably impacts temporary housing (TH) ...
    • A consensus model for Delphi processes with linguistic terms and its application to chronic pain in neonates definition 

      Agell Jané, Núria; van Ganzewinkel,, Christ Jan; Sánchez Soler, Monica; Roselló Saurí, Llorenç; Prats Duaygues, Francesc; Andriessen, Peter (2015-10)
      Article
      Open Access
      This paper proposes a new model of consensus based on linguistic terms to be implemented in Delphi processes. The model of consensus involves qualitative reasoning techniques and is based on the concept of entropy. The ...
    • A cryptographic solution for private distributed simple meeting scheduling 

      Herranz Sotoca, Javier; Matwin, Stan; Meseguer González, Pedro; Nin Guerrero, Jordi (IOS Press, 2009)
      Conference report
      Open Access
      Meeting scheduling is a suitable application for distributed computation motivated by its privacy requirements. Previous work on this problem have considered some cryptographic and conceptually clear approach to solve a ...
    • A decision support system and a mathematical model for strategic workforce planning in consultancies 

      Llort Gual, Núria; Lusa García, Amaia; Martínez Costa, Carme; Mateo Doll, Manuel (2018-01-01)
      Article
      Open Access
      Strategic staff planning in consultancies is a major problem that directly affects the firm’s performance and capacity for dealing with projects appropriately. Furthermore, the decisions taken now will have long term ...
    • A finite point method for three-dimensional compressible flow 

      Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo (2007-09)
      External research report
      Open Access
    • A fix-and-relax heuristic for controlled tabular adjustment 

      Baena, Daniel; Castro Pérez, Jordi (2013-07)
      External research report
      Open Access
      Controlled tabular adjustment (CTA) is an emerging protect ion technique for tabular data pro- tection. CTA formulates a mixed integer linear programming problem, which is tough for tables of moderate size. Finding a ...
    • A genetic algorithm for the mixed flow shop problem 

      Pascual Poch, Mario (Universitat Politècnica de Catalunya, 2019-10-16)
      Master thesis
      Open Access
      Covenantee:   Università degli studi di Trento
      In this thesis we present a new interesting version of the mixed flow shop se-quencing problem, which at the same time is a version of the classic flow shop,a very common topic on operations research.We propose a genetic ...
    • A heuristic method for a congested capacitated transit assignment model with strategies 

      Codina Sancho, Esteve; Rosell Camps, Francisca (2017-12)
      Article
      Open Access
      This paper addresses the problem of solving the congested transit assignment problem with strict capacities. The model under consideration is the extension made by Cominetti and Correa (2001), for which the only solution ...
    • A hybrid flow shop model for an ice cream production scheduling problem 

      Ribas Vila, Immaculada; Companys Pascual, Ramón (School of Industrial and Aeronautic Engineering of Terrassa (ETSEIAT). Universitat Politècnica de Catalunya (UPC), 2009-06)
      Article
      Open Access
      In this paper we address the scheduling problem that comes from an ice cream manufacturing company. This production system can be modelled as a three stage nowait hybrid flow shop with batch dependent setup costs. To ...
    • A Kalman-filter approach for dynamic OD estimation in corridors based on bluetooth and wifi data collection 

      Barceló Bugeda, Jaime; Montero Mercadé, Lídia; Marquès, Laura; Carmona Bautista, Carlos (2010-07)
      Conference report
      Open Access
      From the point of view of the information supplied by an ATIS to the motorists entering a freeway of one of the most relevant is the Forecasted Travel Time, that is the expected travel time that they will experience when ...
    • A measure of perceived performance to assess resource allocation 

      Sayeras, Josep M.; Agell, Nuria; Rovira Llobera, Xari; Sánchez Soler, Monica; Dawson, John A. (Springer, 2016-08-01)
      Article
      Open Access
      Performance measurement is a key issue when a company is designing new strategies to improve resource allocation. This paper offers a new methodology inspired by classic importance-performance analysis (IPA) that provides ...
    • A method of multiobjective decision making using a vector value function 

      Ríos Insúa, Sixto; González Pachón, Jacinto; Mateos, Alfonso (Institut d'Estadística de Catalunya, 1994)
      Article
      Open Access
      A decision situation with partial information on preferences by means of a vector value function is assumed. The concept of minimum value dispersion solution as a reference point joined with a pseudodistance function from ...
    • A methodology for constructing fuzzy rule based classification systems 

      Fernández Garrido, José María; Requena Ramos, Ignacio (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2000)
      Article
      Open Access
      In this paper, a methodology to obtain a set of fuzzy rules for classification systems is presented. The system is represented in a layered fuzzy network, in which the links from input to hidden nodes represents the ...
    • A MIP formulation of a Hybrid AC-DC offshore wind power plant topology 

      Homs Moreno, Josep (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2017-10)
      Master thesis
      Restricted access - confidentiality agreement
      Covenantee:   Department of Statistics and Operations Research - Research Group GNOM
    • A multi-objective approach to infrastructure planning in the early stages of EV introduction 

      Brown, Andina Rosalya (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2014-01)
      Master thesis
      Restricted access - author's decision
      This study addresses the problem of locating fast charging stations for electric vehicles in the early stages of infrastructure implementation. The primary objectives are to contextualise the problem and to subsequently ...
    • A review of impact damage detection in structures using strain data 

      Mujica Delgado, Luis Eduardo; Rodellar Benedé, José; Vehí Casellas, José (2010)
      Article
      Open Access
      This paper aims to provide a state-of-the-art review on impact damage detection techniques in structures using strain data. An overview of impact detection systems is provided. These include sensors, specimens, and impact ...
    • A rolling horizon optimization framework for the simultaneous energy supply and demand planning in microgrids 

      Silvente Saiz, Javier; Kopanos, Georgios M.; Pistikopoulos, Efstratios N.; Espuña Camarasa, Antonio (2015)
      Article
      Open Access
      This work focuses on the development of optimization-based scheduling strategies for the coordination of microgrids. The main novelty of this work is the simultaneous management of energy production and energy demand within ...
    • A rolling horizon stochastic programming framework for the energy supply and demand management in microgrids 

      Silvente Saiz, Javier; Kopanos, Georgios M.; Espuña Camarasa, Antonio (Elsevier, 2015)
      Conference lecture
      Restricted access - publisher's policy
      This work proposes a discrete-time Mixed Integer Linear Programming (MILP) formulation based on a combined rolling horizon and stochastic programming approach for the simultaneous management of energy supply and demand in ...