Now showing items 1-10 of 10

    • 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
      Open Access
      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 ...
    • Cooperation through social influence 

      Molinero Albareda, Xavier; Riquelme Csori, Fabián; Serna Iglesias, María José (Elsevier, 2015-05-01)
      Article
      Open Access
      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. ...
    • 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
      Open Access
      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 ...
    • Influence decision models: from cooperative game theory to social network analysis 

      Molinero Albareda, Xavier; Riquelme Csori, Fabián (Elsevier, 2021-02)
      Article
      Restricted access - publisher's policy
      Cooperative game theory considers simple games and influence games as essential classes of games. A simple game can be viewed as a model of voting systems in which a single alternative, such as a bill or an amendment, is ...
    • Measuring satisfaction and power in influence based decision systems 

      Molinero Albareda, Xavier; Riquelme Csori, Fabián; Serna Iglesias, María José (2019-06-15)
      Article
      Open Access
      We introduce collective decision-making models associated with influence spread under the linear threshold model in social networks. We define the oblivious and the non-oblivious influence models. We also introduce the ...
    • Power indices of influence games and new centrality measures for agent societies and social networks 

      Molinero Albareda, Xavier; Riquelme Csori, Fabián; Serna Iglesias, María José (Springer, 2014-06)
      Article
      Open Access
      We propose as centrality measures for social networks two classical power indices, Banzhaf and Shapley-Shubik, and two new measures, effort and satisfaction, related to the spread of influence process that emerge from the ...
    • Satisfaction and power in unanimous majority influence decision models 

      Molinero Albareda, Xavier; Riquelme Csori, Fabián; Serna Iglesias, María José (2018-07)
      Article
      Open Access
      We consider decision models associated with cooperative influence games, the oblivious and the non-oblivious influence models. In those models the satisfaction and the power measures were introduced and studied. We analyze ...
    • Star-shaped mediation in influence games 

      Molinero Albareda, Xavier; Riquelme Csori, Fabián; Serna Iglesias, María José (2013)
      Conference lecture
      Open Access
      We are interested in analyzing the properties of multi-agent systems [13] where a set of agents have to take a decision among two possible alternatives with the help of the social environment or network of the system itself. ...
    • Structural and computational aspects of simple and influence games 

      Riquelme Csori, Fabián (Universitat Politècnica de Catalunya, 2014-07-29)
      Doctoral thesis
      Open Access
      Simple games are a fundamental class of cooperative games. They have a huge relevance in several areas of computer science, social sciences and discrete applied mathematics. The algorithmic and computational complexity ...
    • The neighborhood role in the linear threshold rank on social networks 

      Riquelme Csori, Fabián; Gonzalez Cantergiani, Pablo; Molinero Albareda, Xavier; Serna Iglesias, María José (2019-08-15)
      Article
      Restricted access - publisher's policy
      Centrality and influence spread are two of the most studied concepts in social network analysis. Several centrality measures, most of them, based on topological criteria, have been proposed and studied. In recent years new ...