Ara es mostren els items 1-20 de 52

  • A Bounded Dynamic Programming algorithm for the Blocking Flow Shop problem 

    Bautista Valhondo, Joaquín; Cano Pérez, Alberto; Companys Pascual, Ramón; Ribas Vila, Immaculada (2011)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    We present some results attained with two variants of bounded dynamic programming algorithm to solve the Fm|block|Cmax problem using as experimental data the wellknown Taillard instances. We have improved the best known ...
  • A bounded dynamic programming algorithm for the blocking flow shop problem 

    Bautista Valhondo, Joaquín; Cano Pérez, Alberto; Companys Pascual, Ramón; Ribas Vila, Immaculada (IEEE Computer Society Conference Publishing Services (CPS), 2011-04-11)
    Capítol de llibre
    Accés restringit per política de l'editorial
    We present some results attained with two variants of the bounded dynamic programming algorithm to solve the Fm|block|Cmax problem using as experimental data the wellknown Taillard instances. We have improved the best-known ...
  • A competitive variable neighbourhood search algorithm for the blocking flow shop problem 

    Ribas Vila, Immaculada; Companys Pascual, Ramón; Tort-Martorell Llabrés, Xavier (2013-12-23)
    Article
    Accés restringit per política de l'editorial
  • A critical sight to the NEH heuristic 

    Companys Pascual, Ramon; Ribas Vila, Immaculada (Springer, 2017-04-03)
    Capítol de llibre
    Accés restringit per política de l'editorial
  • A framework for designing a supply chain distribution network 

    Ribas Vila, Immaculada; Lusa García, Amaia; Corominas Subias, Albert (Taylor & Francis, 2018-10-08)
    Article
    Accés restringit per política de l'editorial
    Based on the analysis of the pertinent literature, we propose a framework to serve as a guide in designing a distribution network as a component of a supply chain (SC). It consists of three steps that are common to goods ...
  • 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
    Accés obert
    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 model to align organizational culture to lean culture 

    Taherimashhadi, Mehrsa; Ribas Vila, Immaculada (Universitat Politècnica de Catalunya. Departament d'Organització d'Empreses (OE), 2018-01-01)
    Article
    Accés obert
    Purpose: Since the emergence of Lean Manufacturing many organizations strived to implement it. Nonetheless, sustainable Lean transformation is not as easy as to be simply achieved. Several aspects need to be taken into ...
  • A Model to Align Organizational Culture to Lean Culture 

    Taherimashhadi, Mehrsa; Ribas Vila, Immaculada (OmniaScience, 2018-04)
    Article
    Accés obert
    Purpose: Since the emergence of Lean Manufacturing many organizations strived to implement it. Nonetheless, sustainable Lean transformation is not as easy as to be simply achieved. Several aspects need to be taken into ...
  • An efficient discrete artificial bee colony algorithm for the blocking flow shop problem with total flowtime minimization 

    Ribas Vila, Immaculada; Companys Pascual, Ramón; Tort-Martorell Llabrés, Xavier (2015-09-01)
    Article
    Accés obert
    This paper presents a high performing Discrete Artificial Bee Colony algorithm for the blocking flow shop problem with flow time criterion. To develop the proposed algorithm, we considered four strategies for the food ...
  • An efficient hybrid iterated local search algorithm for the total tardiness blocking flow shop problem 

    Ribas Vila, Immaculada; Companys Pascual, Ramón; Tort-Martorell Llabrés, Xavier (2012-09-04)
    Report de recerca
    Accés obert
    This paper deals with the blocking flow shop problem and proposes an Iterated Local Search (ILS) procedure combined with a variable neighbourhood search (VNS) for the total tardiness minimization. The proposed ILS makes ...
  • An efficient iterated local search algorithm for the total tardiness blocking flow shop problem 

    Ribas Vila, Immaculada; Companys Pascual, Ramón; Tort-Martorell Llabrés, Xavier (Taylor & Francis, 2013-04-27)
    Article
    Accés restringit per política de l'editorial
    This paper deals with the blocking flow shop problem and proposes an Iterated Local Search (ILS) procedure combined with a variable neighbourhood search (VNS) for the total tardiness minimisation. The proposed ILS makes ...
  • A New Constructive Heuristic for the Fm|block|ST 

    Companys Pascual, Ramón; Ribas Vila, Immaculada (2014-08-31)
    Capítol de llibre
    Accés obert
    This paper deals with the blocking flow shop problem and proposes new constructive procedures for the total tardiness minimization of jobs. The heuristic has three-phases to build the sequence; the first phase selects the ...
  • A new constructive heuristic for the Fm|block|¿T 

    Companys Pascual, Ramón; Ribas Vila, Immaculada (2013)
    Text en actes de congrés
    Accés obert
    This paper deals with the blocking flow shop problem and proposes new constructive procedure s for the total tardiness minimization of jobs. The heuristic has three - phases to build the sequence; the first phase ...
  • A note on the paper ‘Demonstrating Johnson’s algorithm via resource constrained scheduling’ 

    Companys Pascual, Ramon; Ribas Vila, Immaculada (Taylor & Francis, 2017-11-13)
    Article
    Accés obert
    In this paper we demonstrate that the relation between two jobs defined by min{ai, bj}=min{bi, aj}, used in Johnson’s theorem, is not transitive. However, both the theorem and Johnson’s algorithm are correct.
  • Best known solutions for Taillard’s instances adapted to the distributed blocking flow shop scheduling problem 

    Ribas Vila, Immaculada; Companys Pascual, Ramón (2016-04-11)
    Report de recerca
    Accés obert
    The distributed blocking flow shop scheduling problem (DBFSP) allows modeling the scheduling process in companies with more than one factory. It configures production systems as flow shop lines where the blocking constraint ...
  • Best solutions of Ronconi, Imma-B and ImmA-C instances for the Fm|block| 

    Companys Pascual, Ramón; Ribas Vila, Immaculada (2012-09-04)
    Report de recerca
    Accés obert
    A continuación se presentan las mejores soluciones obtenidas para los ejemplares de Ronconi, Imma-B y Imma-C instances utilizados en el problema Fm|block|ΣT. Los valores han sido obtenidos con la hyperheuristica CERCOP0T.
  • Best solutions of taillard's instances for the flow shopwith blockin to minimize flow time 

    Companys Pascual, Ramón; Ribas Vila, Immaculada (2013-11-08)
    Report de recerca
    Accés obert
    we summarize the new best solutions, most of them found during in our research, for the Taillard instances.
  • Comparing three-step heuristics for the permutation flow shop problem 

    Ribas Vila, Immaculada; Companys Pascual, Ramón; Tort-Martorell Llabrés, Xavier (2010-03-03)
    Article
    Accés restringit per política de l'editorial
    In this paper a three steps heuristic for the permutation flow shop problem is proposed. The objective is to minimize the maximum time for completing the jobs, or the makespan. The first two steps are inspired by the NEH ...
  • Decisiones en el diseño de redes de logística inversa: propuesta de un modelo de decisión 

    Ribas Vila, Immaculada; Rubio, Sergio (2013)
    Text en actes de congrés
    Accés obert
    Se considera el problema del diseño de las redes de suministro inversa para la recuperación de productos usados, con el objetivo de establecer un modelo que permita configurar la red en función las características del ...
  • Due dates for the Taillard’s Benchmark adapted to the parallel flow shop scheduling problem and best solutions 

    Ribas Vila, Immaculada; Companys Pascual, Ramon (2018-10-25)
    Report de recerca
    Accés obert