2004, Vol. XI, Núm. 2-3

 

Part B: Special issue. Fuzzy systems: from modelling to knowledge extraction

Summary

  • Data mining techniques using decision tree model in materialised projection and selection view 

    Teh, Y. W. (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2004)
    Article
    Open Access
    With the availability of very large data storage today, redundant data structures are no longer a big issue. However, an intelligent way of managing materialised projection and selection views that can lead to fast access ...

  • A model for opinion agreement and confidence in multi-expert multi-criteria decision making 

    Canfora, Gerardo; Troiano, Luigi (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2004)
    Article
    Open Access
    In multi-expert multi-criteria decision making problems, we often have to deal with different opinions, different importance of criteria and experts, missing data, unexpressed opinions and experts who are not fully ...

  • Parametric families of fuzzy consequence operators 

    Elorza, Jorge; Burillo López, Pedro (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2004)
    Article
    Open Access
    In a previous paper ([6]) we explored the notion of coherent fuzzy consequence operator. Since we did not know of any example in the literature of non-coherent fuzzy consequence operator, we also showed several families ...

  • Knwoledge revision in Markov networks 

    Gebhardt, Jörg; Bogerlt, Christian; Kruse, Rudolf; Detmer, Heinz (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2004)
    Article
    Open Access
    A lot of research in graphical models has been devoted to developing correct and eficient evidence propagation methods, like join tree propagation or bucket elimination. With these methods it is possible to condition ...

  • An evolutionary approach to constraint-regularized learning 

    Hüllermeier, Eyke; Renners, Ingo; Grauel, Adolf (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2004)
    Article
    Open Access
    The success of machine learning methods for inducing models from data crucially depends on the proper incorporation of background knowledge about the model to be learned. The idea of constraint-regularized learning is ...

  • Fuzzy clustering: insights and a new approach 

    Klawonn, Frank (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2004)
    Article
    Open Access
    Fuzzy clustering extends crisp clustering in the sense that objects can belong to various clusters with different membership degrees at the same time, whereas crisp or deterministic clustering assigns each object to a ...

  • Learning fuzzy systems: an ojective function-approach 

    Höppner, Frank; Klawonn, Frank (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2004)
    Article
    Open Access
    One of the most important aspects of fuzzy systems is that they are easily understandable and interpretable. This property, however, does not come for free but poses some essential constraints on the parameters of a fuzzy ...

  • Improving surface detection for quality assessment of car body panels 

    Döring, Christian; Eichhorn, Andreas; Girimonte, Daniela; Kruse, Rudolf (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2004)
    Article
    Open Access
    Surface quality analysis of exterior car body panels was still characterized by manual detection of local form deviations and subjective evaluation by experts. The approach presented in this paper is based on 3-D ...

  • A cost-sensitive learning algorithm for fuzzy rule-based classifiers 

    Beck, Sebastian; Mikut, Ralf; Jäkel, Jens (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2004)
    Article
    Open Access
    Designing classifiers may follow different goals. Which goal to prefer among others depends on the given cost situation and the class distribution. For example, a classifier designed for best accuracy in terms of ...

  • A neuro-fuzzy system for sequence alignment on two levels 

    Weyde, Tilman; Dalinghaus, Klaus (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2004)
    Article
    Open Access
    The similarity judgement of two sequences is often decomposed in similarity judgements of the sequence events with an alignment process. However, in some domains like speech or music, sequences have an internal structure ...

  • Distributed fuzzy decision making for production schedulling 

    Runkler, Thomas A.; Sollacher, Rudolf; Reverey, Wendelin (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2004)
    Article
    Open Access
    In production systems, input materials (educts) pass through multiple sequential stages until they become a product. The production stages consist of different machines with various dynamic characteristics. The coupling ...

  • Editorial [Workshop "Fuzzy systems: from modelling to knowledge extraction", held at the German Conference on Artificial Intelligence, Hamburg, 2003] 

    Klawonn, Frank; Kruse, Rudolf; Mikut, Ralf; Runkler, Thomas A. (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2004)
    Review
    Open Access