Now showing items 1-6 of 6

  • A map characterizing the fuzzy points and columns of a T-indistinguishability operator 

    Boixader Ibáñez, Dionís; Recasens Ferrés, Jorge (2005-10)
    Article
    Open Access
    A new map (ΛE) between fuzzy subsets of a universe X endowed with a T-indistinguishability operator E is introduced. The main feature of ΛE is that it has the columns of E as fixed points, and thus it provides us with a ...
  • Eigenvectors and generators of fuzzy relations 

    Jacas Moral, Juan; Recasens Ferrés, Jorge (-, 1992)
    Conference report
    Restricted access - publisher's policy
    A new geometric approach to the study of the eigenvectors is provided. The T-eigenvectors of a T-indistinguishability operator are characterized as its generators in the sense of the representation theorem of L. Valverde ...
  • Fuzzy set theory for cumulative trauma prediction 

    Fonseca, Daniel J.; Merritt, Thomas W.; Moynihan, Gary P. (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2001)
    Article
    Open Access
    A widely used fuzzy reasoning algorithm was modified and implemented via an expert system to assess the potential risk of employee repetitive strain injury in the workplace. This fuzzy relational model, known as the ...
  • Intuitionistic fuzzy relations (Part II) Effect of Atanassov's operators on the properties of the intuitionistic fuzzy relations 

    Burillo López, Pedro; Bustince Sola, Humberto Nicanor (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1995)
    Article
    Open Access
    In this paper we study the effect of Atanassov's operator on the properties of properties reflexive, symmetric, antisymmetric, perfect antisymmetric and transitive intuitionistic fuzzy relations. We finish the paper analysing ...
  • On the relationship between T-transitivity and approximate equality 

    Boixader Ibáñez, Dionís (2003-01)
    Article
    Restricted access - publisher's policy
    The paper discusses the suitability of T-transitivity for modelling approximate equality. It explains how T-transitivity, a property suitable for modelling vagueness, can still be used to handle the imprecision inherent ...
  • Transitivity of fuzzy relations under discretization 

    Boixader Ibáñez, Dionís; Recasens Ferrés, Jorge (2013-07-10)
    Article
    Restricted access - publisher's policy
    Fuzzy transitivity is a key property for many fuzzy relational structures, such as fuzzy preorders and equivalences. Theoretical models for practical problems which are based on fuzzy relations make use of continuous scales, ...