Now showing items 1-20 of 96

  • A concept of weighted connectivity on connected graphs 

    Amer Ramon, Rafael; Giménez Pradales, José Miguel (2009-02)
    Article
    Restricted access - publisher's policy
    The introduction of a {0,1}-valued game associated to a connected graph allows us to assign to each node a value of weighted connectivity to the different solutions that for the cooperative games are obtained by means of ...
  • A Fibonacci sequence for linear structures with two types of components 

    Freixas Bosch, Josep; Molinero Albareda, Xavier; Roura Ferret, Salvador (2009-07-23)
    External research report
    Open Access
    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 ...
  • A game theoretic trust model for on-line distributed evolution of cooperation in MANETs 

    Mejía Fajardo, Marcela; Peña Traslaviña, Néstor; Muñoz Tapia, José Luis; Esparza Martín, Óscar; Alzate Monroy, Marco (2011-01-13)
    Article
    Restricted access - publisher's policy
    Cooperation among nodes is fundamental for the operation of mobile ad hoc networks(MANETs). In such networks, there could be selfish nodes that use resources from other nodes to send their packets but that do not offer ...
  • A Game Theoretical algorithm for joint power and topology control in distributed WSN 

    Closas Gómez, Pau; Pagès Zamora, Alba Maria; Fernández Rubio, Juan Antonio (2009)
    Conference lecture
    Open Access
    In this paper, the issue of network topology control in wireless networks using a fully distributed algorithm is considered. Whereas the proposed distributed algorithm is designed applying game theory concepts to design ...
  • A game-theoretic multipath routing for video-streaming services over mobile Ad Hoc networks 

    Aguilar Igartua, Mónica; Cruz Llopis, Luis Javier de la; Carrascal Frías, Víctor; Sanvicente Gargallo, Emilio (2011-06-25)
    Article
    Restricted access - publisher's policy
    The number of portable devices capable of maintaining wireless communications has increased considerably in the last decade. Such mobile nodes may form a spontaneous self-configured network connected by wireless links to ...
  • A logistic approximation to the cumulative normal distribution 

    Bowling, Shannon R.; Khasawneh, Mohammad T.; Kaewkuekool, Sittichai; Cho, Byung Rae (School of Industrial and Aeronautic Engineering of Terrassa (ETSEIAT). Universitat Politècnica de Catalunya (UPC), 2009-06)
    Article
    Open Access
    This paper develops a logistic approximation to the cumulative normal distribution. Although the literature contains a vast collection of approximate functions for the normal distribution, they are very complicated, not ...
  • A new coalitional value 

    Carreras Escobar, Francisco; Alonso Meijide, José María (2009-10-17)
    External research report
    Restricted access - author's decision
    We propose a modification of the Shapley value for monotonic games with a coalition structure. The resulting coalitional value is a twofold extension of the Shapley value in the following sense: (1) the amount obtained by ...
  • A new power index based on minimal winning coalitions 

    Freixas Bosch, Josep; Alonso Meijide, José María (2009)
    External research report
    Restricted access - author's decision
    Nou índex de poder basat en coalicions shift-minimals
  • A new power index based on minimal winning coalitions without any surplus 

    Alonso Meijide, José María; Freixas Bosch, Josep (2010-04)
    Article
    Restricted access - author's decision
    In this paper we propose a new power index useful for the evaluation of each member in a committee, or democratic institution, and the degree of influence over the voting decision making system. The proposed solution is ...
  • A note about decisive symmetric games 

    Puente del Campo, María Albina; Freixas Bosch, Josep; Carreras Escobar, Francisco (2009-04)
    Conference lecture
    Restricted access - author's decision
    S'estudien diverses funcions relacionades amb la presa de decisions en jocs simples. L'anàlisi es restringeix a jocs de decisió simètrics i la seva composició i es dóna per suposat que tots els jugadors comparteixen els ...
  • A note on decisive symmetric games 

    Carreras Escobar, Francisco; Freixas Bosch, Josep; Puente del Campo, María Albina (2011)
    Article
    Restricted access - publisher's policy
    Binary voting systems, usually represented by simple games, constitute a main DSS topic. A crucial feature of such a system is the easiness with which a proposal can be collectively accepted, which is measured by ...
  • A note on first-order projections and games 

    Arratia Quesada, Argimiro Alejandro; Stewart, Iain A. (2003)
    Article
    Open Access
    We show how the fact that there is a first-order projection with successor from the problem TC (transitive clousure) to some other problem Ω enables us to automatically deduce that a natural game problem, LGΩ, whose instances ...
  • A novel optimization method on logistics operation for warehouse & port enterprises based on game theory 

    Li, Junyang; Zhu, Xiaomin; Zhang, Runtong (School of Industrial and Aeronautic Engineering of Terrassa (ETSEIAT). Universitat Politècnica de Catalunya (UPC), 2013-12)
    Article
    Open Access
    Purpose: The following investigation aims to deal with the competitive relationship among different warehouses & ports in the same company. Design/methodology/approach: In this paper, Game Theory is used in carrying out ...
  • A procedure to compute the nucleolus of the assignment game 

    Martínez De Albeniz, Javier; Rafels Pallarola, Carlos; Ybern Carballo, M. de Las Nieves (2013-11)
    Article
    Restricted access - publisher's policy
    The assignment game introduced by Shapley and Shubik (1972) [6] is a model for a two-sided market where there is an exchange of indivisible goods for money and buyers or sellers demand or supply exactly one unit of the ...
  • A Stackelberg game to derive the limits of energy savings for the allocation of data center resources 

    León Gutiérrez, Xavier; Navarro Moldes, Leandro (Elsevier, 2013-01)
    Article
    Restricted access - publisher's policy
    Energy-related costs are becoming one of the largest contributors to the overall cost of operating a data center, whereas the degree of data center utilization continues to be very low. An energy-aware dynamic provision ...
  • Accessibility measures to nodes of directed graphs using solutions for generalized cooperative games 

    Amer Ramon, Rafael; Giménez Pradales, José Miguel; Magaña Nieto, Antonio (2012-02)
    Article
    Restricted access - publisher's policy
    The aim of this paper consists of constructing accessibility measures to the nodes of directed graphs using methods of Game Theory. Since digraphs without a predefined game are considered, the main part of the paper is ...
  • An axiomatic characterization of the potential decisiveness index 

    Freixas Bosch, Josep; Pons Navarro, Montserrat (2015-03-01)
    Article
    Open access
    Let us consider that somebody is extremely interested in increasing the probability of a proposal to be approved by a certain committee and that to achieve this goal he/she is prepared to pay off one member of the committee. ...
  • Anàlisis de la cadena de subministre d’una cadena de franquícies basada en la teoria de jocs 

    Vinyes Vila, Pau (Universitat Politècnica de Catalunya, 2007-03)
    Master thesis (pre-Bologna period)
    Open Access
    El present estudi pretén aprofundir en una nova proposta de gestió de la cadena de subministrament mitjançant la teoria de jocs, especialment, la del jocs cooperatius. A través d’una cadena de franquícies britànica de ...
  • Anonymous yes-no voting with abstention and multiple levels of approval 

    Freixas Bosch, Josep; Zwicker, William S. (Academic Press, 2009-11)
    Article
    Open Access
    Els jocs simples simètrics (3, 2) serveixen de models per a sistemes de votació anònims en els quals cada votant pot votar "sí", abstenir-se, o votar "no", el resultat és "sí" o "no", i els votants juguen papers intercanviables. ...
  • Aplicació matemàtica en l'àmbit de gestió d'Inversions d'una entitat asseguradora. 

    Balcells, Jordi (2008-12-04)
    Audiovisual
    Open Access