Ara es mostren els items 1-20 de 38

  • A Fibonacci sequence for linear structures with two types of components 

    Freixas Bosch, Josep; Molinero Albareda, Xavier; Roura Ferret, Salvador (2009-07-23)
    Report de recerca
    Accés obert
    We investigate binary voting systems with two types of voters and a hierarchy among the members in each type, so that members in one class have more influence or importance than members in the other class. The purpose ...
  • An Efficient generic algorithm for the generation of unlabelled cycles 

    Martínez Parra, Conrado; Molinero Albareda, Xavier (2003-06-06)
    Report de recerca
    Accés obert
    In this report we combine two recent generation algorithms to obtain a new algorithm for the generation of unlabelled cycles. Sawada's algorithm lists all k-ary unlabelled cycles with fixed content, that is, the number ...
  • Centrality measure in social networks based on linear threshold model 

    Riquelme Csori, Fabián; Gonzalez Cantergiani, Pablo; Molinero Albareda, Xavier; Serna Iglesias, María José (2018-01-15)
    Article
    Accés restringit per política de l'editorial
    Centrality and influence spread are two of the most studied concepts in social network analysis. In recent years, centrality measures have attracted the attention of many researchers, generating a large and varied number ...
  • Combinatorial structures to construct simple games and molecules 

    Molinero Albareda, Xavier (2017-03-01)
    Article
    Accés obert
    We connect three different topics: combinatorial structures, game theory and chemistry. In particular, we establish the bases to represent some simple games, defined as influence games, and molecules, defined ...
  • Combinatorial structures to modeling simple games and applications 

    Molinero Albareda, Xavier (American Institute of Physics (AIP), 2017)
    Text en actes de congrés
    Accés obert
    We connect three different topics: combinatorial structures, game theory and chemistry. In particular, we establish the bases to represent some simple games, defined as influence games, and molecules, defined from atoms, ...
  • Como mejorar el aprendizaje de los grados en ingeniería desde la perspectiva de los estudiantes 

    Navarro Antúnez, Ramón; Molinero Albareda, Xavier (2011)
    Text en actes de congrés
    Accés obert
    La implantación de las nuevas titulaciones derivadas del Espacio Europeo de Educación Superior ha supuesto para las Escuelas de Ingeniería un considerable desafío, no tanto por su contenido o metodología docente, sino ...
  • Complete voting systems with two types of voters: weightedness and counting 

    Freixas Bosch, Josep; Molinero Albareda, Xavier; Roura Ferret, Salvador (2012)
    Article
    Accés restringit per decisió de l'autor
    We investigate voting systems with two classes of voters, for which there is a hierarchy giving each member of the stronger class more influence or important than each member of the weaker class. We deduce for voting systems ...
  • Computation of several power indices by generating functions 

    Alonso Meijide, José María; Freixas Bosch, Josep; Molinero Albareda, Xavier (2012)
    Article
    Accés obert
    In this paper we propose methods to compute the Deegan-Packel, the Public Good, and the Shift power indices by generating functions for the particular case of weighted voting games. Furthermore, we define a new power ...
  • Cooperation through social influence 

    Molinero Albareda, Xavier; Riquelme Csori, Fabián; Serna Iglesias, María José (Elsevier, 2015-05-01)
    Article
    Accés obert
    We consider a simple and altruistic multiagent system in which the agents are eager to perform a collective task but where their real engagement depends on the willingness to perform the task of other influential agents. ...
  • Dimension and codimension of simple games 

    Kurz, Sascha; Molinero Albareda, Xavier; Olsen, Martin; Serna Iglesias, María José (2016-11-01)
    Article
    Accés obert
    This paper studies the complexity of computing a representation of a simple game as the intersection (union) of weighted majority games, as well as, the dimension or the codimension. We also present some examples with ...
  • Forms of representation for simple games: sizes, conversions and equivalences 

    Molinero Albareda, Xavier; Riquelme Csori, Fabián; Serna Iglesias, María José (North Holland Mathematical Library, 2015-07-01)
    Article
    Accés obert
    Simple games are cooperative games in which the benefit that a coalition may have is always binary, i.e., a coalition may either win or loose. This paper surveys different forms of representation of simple games, and those ...
  • Generic algorithms for the generation of combinatorial objects 

    Molinero Albareda, Xavier; Martínez Parra, Conrado (2003-06)
    Report de recerca
    Accés obert
    This report briefly describes our generic approach to the exhaustive generation of unlabelled and labelled combinatorial classes. Our algorithms receive a size n and a finite description of a combinatorial class A using ...
  • Help to new students of ICT Systems Engineering Degree at EPSEM-UPC: mentoring 

    Gorchs Altarriba, Roser; Molinero Albareda, Xavier (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2014-05)
    Article
    Accés obert
    Freshmen at the Manresa School of Engineering, Escola Politècnica Superior d'Enginyeria de Manresa (EPSEM), of the Universitat Politècnica de Catalunya (UPC) are voluntarily provided with the mentoring service during their ...
  • Help to new students of ICT Systems Engineering Degree at EPSEM-UPC: mentoring 

    Gorchs Altarriba, Roser; Molinero Albareda, Xavier (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació (ICE), 2014)
    Article
    Accés obert
    New students at the Manresa School of Engineering (EPSEM, Escola Politècnica Superior d'Enginyeria de Manresa) of the Universitat Politècnica de Catalunya (UPC) are voluntarily provided with the mentoring service during ...
  • La tutoria: opcional o obligada? 

    Gorchs Altarriba, Roser; Giralt Mas, Ma. Rosa; Molinero Albareda, Xavier (2011)
    Comunicació de congrés
    Accés obert
  • Maximum tolerance and maximum greatest tolerance 

    Freixas Bosch, Josep; Molinero Albareda, Xavier (2009-09-23)
    Report de recerca
    Accés obert
    An important consideration when applying neural networks is the sensitivity to weights and threshold in strict separating systems representing a linearly separable function. Two parameters have been introduced to ...
  • Measuring satisfaction in societies with opinion leaders and mediators 

    Molinero Albareda, Xavier; Riquelme Csori, F.; Serna Iglesias, María José (2016-05-14)
    Report de recerca
    Accés obert
    An opinion leader-follower model (OLF) is a two-action collective decision-making model for societies, in which three kinds of actors are considered:
  • Minimal representations for majority games 

    Freixas Bosch, Josep; Molinero Albareda, Xavier; Roura Ferret, Salvador (2007-02)
    Report de recerca
    Accés obert
    This paper presents some new results about majority games. Isbell (1959) was the first to find a majority game without a minimum normalized representation; he needed 12 voters to construct such a game. Since then, it has ...
  • On the complexity of exchanging 

    Molinero Albareda, Xavier; Olsen, Martin; Serna Iglesias, María José (2016-02-04)
    Article
    Accés obert
    We analyze the computational complexity of the problem of deciding whether, for a given simple game, there exists the possibility of rearranging the participants in a set of j given losing coalitions into a set of j winning ...
  • On the complexity of exchanging 

    Molinero Albareda, Xavier; Olsen, Martin; Serna Iglesias, María José (2015-03-24)
    Report de recerca
    Accés obert
    We analyze the computational complexity of the problem of deciding whether, for a given simple game, there exists the possibility of rearranging the participants in a set of j given losing coalitions into a set of j winning ...