1994, Vol. I, Núm. 3

 

Selected papers of Fourth Congress of the Spanish of Fuzzy Logic and Technology,1994, Blanes.

Summary

  • The study of the L-fuzzy concept lattice 

    Burusco Juandeaburre, Ana; Fuentes-González, Ramón (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1994)
    Article
    Open Access
    The L-Fuzzy concept theory that we have developed sets up classifications from the objects and attributes of a context through L-Fuzzy relations. This theory generalizes the formal concept theory of R. Wille. In this paper ...

  • Interactive decision-making in multiobjective fuzzy programming 

    Cadenas Figueredo, José Manuel; Jiménez Barrionuevo, Fernando (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1994)
    Article
    Open Access
    We present an interactive decision support system which aids in solving a general multiobjective fuzzy problem, that is, a multiobjective programming problem with fuzzy goals subject to a fuzzy constraint set. The interactive ...

  • Supervsion of classical PID adpative regulators using fuzzy logic techniques 

    Ferreiro García, Ramón; Rodríguez Gómez, B. (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1994)
    Article
    Open Access
    This work describes the supervisory task of controlled plants whose strategy is based on classical adaptive PID regulators. The supervisory task includes the detection of the dynamic behaviour. According to this it decides ...

  • The use of fuzzy connectives to design real-coded genetic algorithms 

    Herrera Triguero, Francisco; Lozano, M.; Verdegay, José Luis (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1994)
    Article
    Open Access
    Genetic algorithms are adaptive methods that use principles inspired by natural population genetics to evolve solutions to search and optimization problems. Genetic algorithms process a population of search space solutions ...

  • A model of decision with lingustic knowledge 

    Lamata, M.T. (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1994)
    Article
    Open Access
    The aim of this paper is to develop a new aggregating method for the decision problem in which the possible values of rewards are known in linguistic terms. We show new operators for solving this problem, as well as the ...

  • An approach to fuzzy temporal reasoning in medicine 

    Marín, R.; Barro Ameneiro, D. Senén; Palacios, F.; Ruiz, R.; Martín, F. (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1994)
    Article
    Open Access
    In this work we propose an approach for the application of a fuzzy temporal constraint model to intelligent patient monitoring tasks. After analyzing the requirements of the domain, we describe the approach that was followed ...

  • Fractal negations 

    Mayor Forteza, Gaspar; Calvo Sánchez, Tomasa (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1994)
    Article
    Open Access
    From the concept of attractor of a family of contractive affine transformations in the Euclidean plane R², we study the fractality property of the De Rham function and other singular functions wich derive from it. In ...

  • An elemental processor of fuzzy SQL 

    Medina Rodríguez, Juan Miguel; Pons Capote, Olga; Vila Miranda, María Amparo (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1994)
    Article
    Open Access
    This paper reports an alternative for implementing an SQL fuzzy extension on a Fuzzy Relational Database System. This proposal tries to build an FSQL processor using representation and manipulation mechanisms offered by ...

  • Systolic architectures for fuzzy processing and their simulation 

    Salvador, Luis de; García, Marcos; Gutiérrez, Julio (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1994)
    Article
    Open Access
    This paper details the study of systolic architectures for fuzzy rules processing made at the Hardware and Advanced Control Laboratory - INTA. The theoretical basis of these architectures is described and analysed. Likewise, ...

  • On the identity of fuzzy material conditionals 

    Trillas i Gay, Enric; Cubillo Villanueva, Susana; Rodríguez de Soto, Adolfo (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1994)
    Article
    Open Access
    Given $\mu , \; \eta :X \rightarrow [0,1]$ we study when the equality $I_{\mu }^{T}=I_{\eta }^{T}$ holds, $T$ being a continuous t-norm, and $I_{\theta }^{T}$ the elemental preorder:\\ \[ I_{\theta }^{T}(y/x) = sup \{z\; ...

  • On fuzzy temporal constraint networks 

    Vila, Lluís; Godo Lacasa, Lluís (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1994)
    Article
    Open Access
    Temporal Constraint Networks are a well-defined, natural and efficient formalism for representing temporal knowledge based on metric temporal constraints. They support the representation of both metric and some qualitative ...

  • Max-Min fuzzy neural networks for solving relational equations 

    Blanco Morón, Armando; Delgado Calvo-Flores, Miguel; Requena Ramos, Ignacio (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1994)
    Article
    Open Access
    The Relational Equations approach is one of the most usual ones for describing (Fuzzy) Systems and in most cases, it is the final expression for other descriptions. This is why the identification of Relational Equations ...

  • Editorial [4th. Congress of the Spanish Association of Fuzzy Logic and Technology: Blanes, 1994: selection of extended versions] 

    Verdegay, José Luis; Esteva Massaguer, Francesc (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1994)
    Review
    Open Access