Now showing items 1-3 of 3

    • A survey of methods to evaluate quantified sentences 

      Delgado Calvo-Flores, Miguel; Sánchez Fernández, Daniel; Serrano Chica, José María; Vila Miranda, María Amparo (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2000)
      Article
      Open Access
      The evaluation of quantified sentences is used to solve several problems. Most of the methods proposed in the literature are not satisfactory because they do not verify some intuitive properties. In this paper we propose ...
    • Learning imprecise semantic concepts from image databases 

      Sánchez Fernández, Daniel; Chamorro Martínez, Jesús (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2002)
      Article
      Open Access
      In this paper we introduce a model to represent high-level semantic concepts that can be perceived in images. The concepts are learned and represented by means of a set of association rules that relate the presence of ...
    • Segmenting colour images on the basis of a fuzzy hierarchical approach 

      Chamorro Martínez, Jesús; Sánchez Fernández, Daniel; Prados Suárez, Belen; Galán Perales, Elena; Vila Miranda, María Amparo (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica., 2003)
      Article
      Open Access
      In this paper we deal with two problems related to imprecision in colour image segmentation processes: to decide whether a set of pixels verify the property "to be homogeneously coloured", and to represent the set of ...