Formalization of Provenes fuzzy functional dependency in fuzzy databases.

Título inglés	Formalization of Provenes fuzzy functional dependency in fuzzy databases.
Título español	Formalización de la dependencia funcional difusa de Provenes en bases de datos difusas.
Autor/es	Dukic, Nedzad ; Avdagic, Zikrija
Organización	Fac. Sci. Dep. Math. Fac. Electr. Eng. Univ. Sarajevo, Sarajevo, Bosnia-Herzegovina
Revista	1134-5632
Publicación	2004, 11 (1): 31-44, 18 Ref.
Tipo de documento	articulo
Idioma	Inglés
Resumen inglés	In this paper we establish equivalence between a theory of fuzzy functional dependences and a fragment of fuzzy logic. We give a way to interpret fuzzy functional dependences as formulas in fuzzy logic. This goal is realized in a few steps. Truth assignment of attributes is defined in terms of closeness between two tuples in a fuzzy relation. A corresponding fuzzy formula is associated to a fuzzy functional dependence. It is proved that if a relation satisfies a fuzzy functional dependence, then the corresponding fuzzy formula is satisfied and viceverse. Finally, equivalence of a fuzzy formulas and a set fuzzy functional dependence is demonstrated. Thus we are in position to apply the rule of resolution from fuzzy logic, while calculating fuzzy functiorial dependences.
Clasificación UNESCO	110208
Palabras clave español	Lógica difusa ; Bases de datos relacionales
Código MathReviews	MR2116810
Código Z-Math	Zbl 1088.68565
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