Aggregation of Indistinguishability Fuzzy Relations Revisited

Indistinguishability fuzzy relations were introduced with the aim of providing a fuzzy notion of equivalence relation. Many works have explored their relation to metrics, since they can be interpreted as a kind of measure of similarity and this is, in fact, a dual notion to dissimilarity. Moreover,...

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Detalhes bibliográficos
Autores: Gonzalez-Hedstrom, Juan-De-Dios, Miñana, Juan-José, Valero, Oscar
Formato: artículo
Fecha de publicación:2021
País:España
Recursos:Conselleria de Salut i Consum del Govern de les Illes Balears
Repositorio:Docusalut
Idioma:inglés
OAI Identifier:oai:docusalut.com:20.500.13003/19429
Acesso em linha:https://hdl.handle.net/20.500.13003/19429
Access Level:acceso abierto
Palavra-chave:aggregation
indistinguishability fuzzy relation
extended pseudo-metric
additive generator
continuous Archimedean t-norm
Descrição
Resumo:Indistinguishability fuzzy relations were introduced with the aim of providing a fuzzy notion of equivalence relation. Many works have explored their relation to metrics, since they can be interpreted as a kind of measure of similarity and this is, in fact, a dual notion to dissimilarity. Moreover, the problem of how to construct new indistinguishability fuzzy relations by means of aggregation has been explored in the literature. In this paper, we provide new characterizations of those functions that allow us to merge a collection of indistinguishability fuzzy relations into a new one in terms of triangular triplets and, in addition, we explore the relationship between such functions and those that aggregate extended pseudo-metrics, which are the natural distances associated to indistinguishability fuzzy relations. Our new results extend some already known characterizations which involve only bounded pseudo-metrics. In addition, we provide a completely new description of those indistinguishability fuzzy relations that separate points, and we show that both differ a lot.