Ara es mostren els items 1-20 de 21

  • A fuzzy logic approach to assembly line 

    Fonseca, Daniel J.; Elam, Matthew; Karr, Charles L.; Guest, C.L. (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2005)
    Article
    Accés obert
    This paper deals with the use of fuzzy set theory as a viable alternative method for modelling and solving the stochastic assembly line balancing problem. Variability and uncertainty in the assembly line balancing ...
  • A hybrid evolutionary approach to intelligent system design 

    Badr, Amr; Farag, Ibrahim; Eid, Saad (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1999)
    Article
    Accés obert
    The problem of developing a general methodology for system design has always been demanding. For this purpose, an evolutionary algorithm, adapted with design-specific representation data structures is devised. The ...
  • A map characterizing the fuzzy points and columns of a T-indistinguishability operator 

    Boixader Ibáñez, Dionís; Recasens Ferrés, Jorge (2005-10)
    Article
    Accés obert
    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 ...
  • A proposal for climate change resilience management through fuzzy controllers 

    González Cárdenas, Rubén; Nebot Castells, M. Àngela; Múgica Álvarez, Francisco (SciTePress, 2016)
    Text en actes de congrés
    Accés obert
    We aim towards the implementation of a set of fuzzy controllers capable to perform automated estimation of the period of time necessary to recover a resilience level through the non-linear influence of a set of interrelated ...
  • Development of a framework for the integration of real-time data in supply chain risk management using simulation tools 

    Valero Berjaga, Alvar (Universitat Politècnica de Catalunya / Technische Universität Dortmund, 2013)
    Treball Final de Grau
    Accés obert
    Realitzat a/amb: Technische Universität Dortmund
  • Estimación holística del riesgo sísmico: nuevos enfoques 

    Carreño Tibaduiza, Martha Liliana; Cardona Arboleda, Omar Dario; Barbat Barbat, Horia Alejandro (Ediciones Uniandes, 2015)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The fuzzy set theory offers a bridge between the symbolic and numerical processing, allowing managing qualitative concepts useful in the decision-making process related to the seismic risk management and, in general, to ...
  • FCR Method vs. IR Method: Comparative and intercultural analysis of two human behavior measurements applying extended Fuzzy Logic 

    Clavell Pi-Sunyer, Pau (Universitat Politècnica de Catalunya / Aichi Institute of Technology, 2008)
    Projecte/Treball Final de Carrera
    Accés restringit per acord de confidencialitat
    The advanced knowledge of people’s real opinions is getting more important every day from many points of view and fields of application. The decision-making science, the improvement of market research, Marketing and ...
  • Fuzzy sets in computer vision: an overview 

    Sobrevilla Frisón, Pilar; Montseny Masip, Eduard (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2003)
    Article
    Accés obert
    Every computer vision level crawl with uncertainty, what makes its management a significant problem to be considered and solved when trying for automated systems for scene analysis and interpretation. This is why fuzzy set ...
  • Fuzzy short-run control charts 

    Fonseca, D. J.; Elam, M. E.; Tibbs, L. (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2007)
    Article
    Accés obert
    Statistical control charts are useful tools in monitoring the state of a manufacturing process. Control charts are used to plot process data and compare it to the limits set for the process. Points plotting outside these ...
  • Integration of Graph Theory and Matrix Approach with Fuzzy AHP for Equipment Selection 

    Fathi, Mohammad Reza; Safari, Hossein; Faghih, Alireza (School of Industrial and Aeronautic Engineering of Terrassa (ETSEIAT). Universitat Politècnica de Catalunya (UPC), 2013-07)
    Article
    Accés obert
    Purpose: The purpose of this paper is applying a new integrated method to equipment selection. Design/methodology/approach: In this paper, we proposed the new integrated approach. Proposed approach is based on fuzzy ...
  • Mathematical aspects of the theory of measures of fuzziness 

    Vivona, Doretta (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1996)
    Article
    Accés obert
    After recalling the axiomatic concept of fuzziness measure, we define some fuzziness measures through Sugeno’s and Choquet’s integral. In particular, for the so-called “homogeneous” fuzziness measures we prove two ...
  • Mining and visualizing uncertain data objects and named data networking traffics by fuzzy self-organizing map 

    Karami, Amin; Guerrero Zapata, Manel (CEUR-WS.org, 2014)
    Text en actes de congrés
    Accés obert
    Uncertainty is widely spread in real-world data. Uncertain data-in computer science-is typically found in the area of sensor networks where the sensors sense the environment with certain error. Mining and visualizing ...
  • On the relationship between T-transitivity and approximate equality 

    Boixader Ibáñez, Dionís (2003-01)
    Article
    Accés restringit per política de l'editorial
    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 ...
  • Ovchinnikov's automorphisms revisited 

    Trillas i Gay, Enric; Rodríguez, A.; Cubillo Villanueva, Susana (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1994)
    Article
    Accés obert
    In [6] an approach to the representation of synonyms and antonyms via the automorphisms of the De Morgan Algebra [0,1] x was suggested. In [3], Ovchinnikov established a representation theorem for automorphisms of the ...
  • Profit allocation in fuzzy cooperative games in manufacturing and logistics industry 

    Wang, Xiaoyan; Jiang, Liqi; Shu, Lei (OmniaScience, 2014-05)
    Article
    Accés obert
    Purpose: Alliance between manufacturing and logistics industry is a new model of the joint development of the two industries. A reasonable profit allocation mechanism is the key to ensure the stable operation of the alliance, ...
  • Similarity in fuzzy reasoning 

    Klawonn, Frank; Castro Peña, Juan Luis (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1995)
    Article
    Accés obert
    Fuzzy set theory is based on a `fuzzification' of the predicate in (element of), the concept of membership degrees is considered as fundamental. In this paper we elucidate the connection between indistinguishability modelled ...
  • Social aggravation estimation to seismic hazard using classical fuzzy methods 

    González Cárdenas, Rubén; Nebot Castells, M. Àngela; Múgica Álvarez, Francisco; Carreño Tibaduiza, Martha Liliana; Barbat Barbat, Horia Alejandro (Springer, 2015)
    Capítol de llibre
    Accés restringit per política de l'editorial
    In the last years, from a disasters perspective, risk has been dimensioned to allow a better management. However, this conceptualization turns out to be limited or constrained, by the generalized use of a fragmented risk ...
  • Testing satistical hipotheses in fuzzy environment 

    Gregorzewski, Przemyslaw; Hryniewicz, Olgierd (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1997)
    Article
    Accés obert
    In traditional statistics all parameters of the mathematical model and possible observations should be well defined. Sometimes such assumption appears too rigid for the real-life problems, especially while dealing ...
  • The logistic decision making in management accounting with genetic algoritms and fuzzy sets 

    López González, Enrique; Rodríguez-Fernández, M. Ángel; Mendaña Cuervo, Cristina (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2000)
    Article
    Accés obert
    The logistics problems in business environments deal with assignation from a number of sources to a number of destinations. Each source offers amounts of goods, while each destination demands quantities of these goods. The ...
  • Transitive closure and betweenness relations 

    Boixader Ibáñez, Dionís; Jacas Moral, Juan; Recasens Ferrés, Jorge (2001-06)
    Article
    Accés restringit per política de l'editorial
    Indistinguishability operators fuzzify the concept of equivalence relation and have been proved a useful tool in theoretical studies as well as in di0erent applications such as fuzzy control or approximate reasoning. One ...