Browsing by UPNA Author "Bedregal, Benjamin"
Now showing items 120 of 21

Abstract homogeneous functions and consistently influenced/disturbed multiexpert decision making
In this paper we propose a new generalization for the notion of homogeneous functions. We show some properties and how it appears in some scenarios. Finally we show how this generalization can be used in order to provide ... 
Admissible orders on fuzzy numbers
From the more than two hundred partial orders for fuzzy numbers proposed in the literature, only a few are total. In this paper, we introduce the notion of admissible order for fuzzy numbers equipped with a partial order, ... 
Aggregation of individual rankings through fusion functions: criticism and optimality analysis
Throughout this paper, our main idea is to analyze from a theoretical and normative point of view different methods to aggregate individual rankings. To do so, first we introduce the concept of a general mean on an abstract ... 
Application of two different methods for extending latticevalued restricted equivalence functions used for constructing similarity measures on Lfuzzy sets
Based on previous investigations, we have proposed two different methods to extend latticevalued fuzzy connectives (tnorms, tconorms, negations and implications) and other related operators, considering a generalized ... 
Constructing intervalvalued fuzzy material implication functions derived from general intervalvalued grouping functions
Grouping functions and their dual counterpart, overlap functions, have drawn the attention of many authors, mainly because they constitute a richer class of operators compared to other types of aggregation functions. ... 
dChoquet integrals: Choquet integrals based on dissimilarities
The paper introduces a new class of functions from [0,1]n to [0,n] called dChoquet integrals. These functions are a generalization of the 'standard' Choquet integral obtained by replacing the difference in the definition ... 
The evolution of the notion of overlap functions
In this chapter we make a review of the notion of overlap function. Although originally developed in order to determine up to what extent a given element belongs to two sets, overlap functions have widely developed in the ... 
Generalization of QLoperators based on general overlap and general grouping functions
Firstly, this work discusses the main conditions guarantying that general overlap (grouping) functions can be obtained from ndimensional overlap (grouping) functions. Focusing on QLimplications, which are usually ... 
A historical account of types of fuzzy sets and their relationships
In this work we review the definition and basic properties of the different types of fuzzy sets that have appeared up to now in the literature. We also analyze the relationships between them and enumerate some of the ... 
Improving the performance of fuzzy rulebased classification systems based on a nonaveraging generalization of CCintegrals named CF1F2integrals
A key component of fuzzy rulebased classification systems (FRBCS) is the fuzzy reasoning method (FRM) since it infers the class predicted for new examples. A crucial stage in any FRM is the way in which the information ... 
Intervalvalued Atanassov intuitionistic OWA aggregations using admissible linear orders and their application to decision making
Based on the definition of admissible order for intervalvalued Atanassov intuitionistic fuzzy sets, we study OWA operators in these sets distinguishing between the weights associated to the membership and those associated ... 
The law of Oconditionality for fuzzy implications constructed from overlap and grouping functions
Overlap and grouping functions are special kinds of non necessarily associative aggregation operators proposed for many applications, mainly when the associativity property is not strongly required. The classes of overlap ... 
Ndimensional admissibly ordered intervalvalued overlap functions and its influence in intervalvalued fuzzy rulebased classification systems
Overlap functions are a type of aggregation functions that are not required to be associative, generally used to indicate the overlapping degree between two values. They have been successfully used as a conjunction operator ... 
On admissible orders over closed subintervals of [0,1]
In this paper, we make some considerations about admissible orders on the set of closed subintervals of the unit interval I[0,1], i.e. linear orders that refine the product order on intervals. We propose a new way to ... 
On fuzzy implications derived from general overlap functions and their relation to other classes
There are distinct techniques to generate fuzzy implication functions. Despite most of them using the combination of associative aggregators and fuzzy negations, other connectives such as (general) overlap/grouping ... 
On some classes of nullnorms and hpseudo homogeneity
(Elsevier, 2022) Artículo / ArtikuluaNullnorms are aggregation functions which generalize tnorms and tconorms. For each nullnorm there exists an annihilator element such that, below it, the function behaves like a tconorm, and, above it, like a tnorm. ... 
Preaggregation functions: construction and an application
In this work we introduce the notion of preaggregation function. Such a function satisfies the same boundary conditions as an aggregation function, but, instead of requiring monotonicity, only monotonicity along some ... 
A proposal for tuning the α parameter in CαCintegrals for application in fuzzy rulebased classification systems
In this paper, we consider the concept of extended Choquet integral generalized by a copula, called CCintegral. In particular, we adopt a CCintegral that uses a copula defined by a parameter α, which behavior was tested ... 
Pseudo overlap functions, fuzzy implications and pseudo grouping functions with applications
Overlap and grouping functions are important aggregation operators, especially in information fusion, classification and decisionmaking problems. However, when we do more indepth application research (for example, ... 
Towards interval uncertainty propagation control in bivariate aggregation processes and the introduction of widthlimited intervalvalued overlap functions
Overlap functions are a class of aggregation functions that measure the overlapping degree between two values. They have been successfully applied as a fuzzy conjunction operation in several problems in which associativity ...