… Pagola, and J. Fernandez are with the Departamento de Automática y Computación,
Universidad Pública de Navarra, 31006 Pamplona, Spain (e-mail: bustince@unavarra.es; …

In this paper, we propose new aggregation functions for the pairwise comparison of alternatives
in fuzzy preference modeling. More specifically, we introduce the concept of a grouping …

In this paper we present a method to construct interval-valued fuzzy sets (or interval type 2
fuzzy sets) from a matrix (or image), in such a way that we obtain the length of the interval …

Measuring the nitrogen nutrition status of plants is useful for nitrogen fertiliser management.
As nitrogen is one of the main structural components of chlorophyll, its nutrition status is …

In this paper we present the concept of a restricted equivalence function. This concept arises
on the one hand, from the definition of equivalence given by J. Fodor and M. Roubens, and …

In this paper we apply restricted equivalence functions to the computation of the threshold of
an image. In the first part we present an algorithm for obtaining the best threshold of a …

In this paper, we will present a wider view on the relationship between interval-valued fuzzy
sets and interval type-2 fuzzy sets, where we will show that interval-valued fuzzy sets are a …

Two measures are presented for comparing fuzzy sets. The method for constructing these
measures is studied, starting from fuzzy DI-subsethood measures (see [H. Bustince, V. …

Objective To develop a classifier that tackles the problem of determining the risk of a patient
of suffering from a cardiovascular disease within the next 10 years. The system has to …

In this paper we study under which conditions overlap and grouping functions satisfy some
commonly demanded properties such as migrativity or homogeneity. We also recall that the …