Exploració per tema "Vot -- Models matemàtics"

Ara es mostren els items 41-51 de 51

    • Similarities and differences between success and decisiveness 

      Freixas Bosch, Josep; Pons Vallès, Montserrat (AA Publications, 2014)
      Text en actes de congrés
      Accés obert
      We consider binary voting systems in which a probability distribution over coalitions is known. In this broader context decisiveness is an extension of the Penrose-Banzhaf index and success an extension of the Rae index ...

    • Some characterizations of resolute majority rules 

      Freixas Bosch, Josep; Samaniego Vidal, Daniel (Springer, 2023-10-14)
      Article
      Accés obert
      In this paper we consider decision functions in which voters have three options and one of them is abstention or indifference and the output is a binary decision between two alternatives so that a tie is not possible. These ...

    • Success and decisiveness on proper symmetric games 

      Freixas Bosch, Josep; Pons Vallès, Montserrat (2015-12)
      Article
      Accés obert
      This paper provides a complete study for the possible rankings of success and decisiveness for individuals in symmetric voting systems, assuming anonymous and independent probability distributions. It is proved that for ...

    • The Banzhaf value for cooperative and simple multichoice games 

      Freixas Bosch, Josep (2020-02)
      Article
      Accés obert
      This article proposes a value which can be considered an extension of the Banzhaf value for cooperative games. The proposed value is defined on the class of j-cooperative games, i.e., games in which players choose among a ...

    • The complexity of testing properties of simple games 

      Freixas Bosch, Josep; Molinero Albareda, Xavier; Olsen, Martin; Serna Iglesias, María José (2008-04-04)
      Report de recerca
      Accés obert
      Simple games cover voting systems in which a single alternative, such as a bill or an amendment, is pitted against the status quo. A simple game or a yes-no voting system is a set of rules that specifies exactly which ...

    • The cost of getting local monotonicity 

      Freixas Bosch, Josep; Kurz, Sascha (Elsevier, 2016-06-01)
      Article
      Accés obert
      Committees with yes-no-decisions are commonly modeled as simple games and the ability of a member to influence the group decision is measured by so-called power indices. For a weighted game we say that a power index satisfies ...

    • The golden number and Fibonacci sequences in the design of voting structures 

      Freixas Bosch, Josep; Kurz, Sascha (Elsevier, 2013)
      Article
      Accés obert
      Some distinguished types of voters, as vetoes, passers or nulls, as well as some others, play a significant role in voting systems because they are either the most powerful or the least powerful voters in the game independently ...

    • The minimum sum representation as an index of voting power 

      Freixas Bosch, Josep; Kaniovski, Serguei (Elsevier, 2014-03-16)
      Article
      Accés obert
      We propose a new power index based on the minimum sum representation (MSR) of a weighted voting game. The MSR o ers a redesign of a voting game, such that voting power as measured by the MSR index becomes proportional ...

    • Using the multilinear extension to study some probabilistic power indices 

      Freixas Bosch, Josep; Pons Vallès, Montserrat (2017-05-01)
      Article
      Accés obert
      We consider binary voting systems modeled by a simple game, in which voters vote independently of each other, and the probability distribution over coalitions is known. The Owen’s multilinear extension of the simple game ...

    • Voting games with abstention: linking completeness and weightedness 

      Freixas Bosch, Josep; Tchantcho, Bertrand; Tedjeugang, Narcisse (2014-01-01)
      Article
      Accés obert
      Weighted games for several levels of approval in input and output were introduced in [9]. An extension of the desirability relation for simple games, called the influence relation, was introduced for games with several ...

    • Weighted voting, abstention and multiple levels of approval 

      Freixas Bosch, Josep; Zwicker, William S. (Springer, 2003-12)
      Article
      Accés obert
      In this paper we introduce the class of simple games with several ordered levels of approval in the input and in the output – the ( j,k) simple games – and propose a definition for weighted games in this context. Abstention ...