Now showing items 1-20 of 162

  • 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 ...
  • A class of population dynamics for reaching epsilon-equilibria : engineering applications 

    Obando, Germán; Barreiro Gómez, Julian; Quijano Silva, Nicanor (2016)
    Conference report
    Open Access
    This document proposes a novel class of population dynamics that are parameterized by a nonnegative scalar . We show that any rest point of the proposed dynamics corresponds to an -equilibrium of the underlying population ...
  • A concept of weighted connectivity on connected graphs 

    Amer Ramon, Rafael; Giménez Pradales, José Miguel (2009-02)
    Article
    Open Access
    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 distributed auctioneer for resource allocation in decentralized systems 

    Khan, Muhammad Amin; Vilaça, Xavier; Rodrigues, Luís; Freitag, Fèlix (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Open Access
    In decentralized systems, nodes often need to coordinate to access shared resources in a fair manner. One approach to perform such arbitration is to rely on auction mechanisms. Although there is an extensive literature ...
  • A distributed power sharing framework among households in microgrids: a repeated game approach 

    Alskaif, Tarek; Guerrero Zapata, Manel; Bellalta Jiménez, Boris; Nilsson, Anders (2017-01-01)
    Article
    Open Access
    In microgrids, the integration of distributed energy resources (DERs) in the residential sector can improve power reliability, and potentially reduce power demands and carbon emissions. Improving the utilization of renewable ...
  • 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 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 and hybrid genetic meta-heuristics model for security-assured scheduling of independent jobs in computational grids 

    Kolodziej, Joana; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Conference report
    Open Access
    Scheduling independent tasks in Computational Grids commonly arises in many Grid-enabled large scale applications. Much of current research in this domain is focused on the improvement of the efficiency of the Grid schedulers, ...
  • 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 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 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 method to calculate generalized mixed modified semivalues: application to the Catalan Parliament (legislature 2012-2016) 

    Giménez Pradales, José Miguel; Puente del Campo, María Albina (Springer, 2015-10-01)
    Article
    Open Access
    We focus on generalized mixed modified semivalues, a family of coalitional values. They apply to games with a coalition structure by combining a (induced) semivalue in the quotient game, but share within each union the ...
  • 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 ...
  • 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. ...
  • An axiomatization for two power indices for (3,2)-simple games 

    Benardi, Giulia; Freixas Bosch, Josep (2019-01-01)
    Article
    Restricted access - publisher's policy
    The aim of this work is to give a characterization of the Shapley–Shubik and the Banzhaf power indices for (3,2)-simple games. We generalize to the set of (3,2)-simple games the classical axioms for power indices on simple ...
  • An equivalent formulation for the Shapley value 

    Freixas Bosch, Josep (Springer, 2018)
    Part of book or chapter of book
    Restricted access - publisher's policy
    These transactions publish research in computer-based methods of computational collective intelligence (CCI) and their applications in a wide range of fields such as the semantic web, social networks, and multi-agent ...
  • 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 ...
  • 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. ...