Carregant...
Carregant...

Vés al contingut (premeu Retorn)

New Closure Operators and Lattice Representations for Multivalued Dependencies and Related Expressions

Autor
Baixeries, J.; Balcazar, J. L.
Tipus d'activitat
Presentació treball a congrés
Nom de l'edició
3rd International Conference on Concept Lattices and Their Applications
Any de l'edició
2005
Data de presentació
2005-09
Llibre d'actes
CLA 2005 : proceedings of 3rd International Conference on Concept Lattices and Their Applications
Pàgina inicial
22
Pàgina final
33
Repositori
http://hdl.handle.net/2117/14870 Obrir en finestra nova
Resum
In Database Theory, Multivalued Dependencies are the main tool to define the Fourth Normal Form and, as such, their inference problem has been deeply studied; two related notions appearing in that study are a syntactical analog in propositional logic and a restriction that maintains to this logic the same relationship as Functional Dependencies do to Horn logic. We present semantic, lattice-theoretic characterizations of such multivalued dependencies that hold in a given relation, as well as sim...
Citació
Baixeries, J.; Balcazar, J. New Closure Operators and Lattice Representations for Multivalued Dependencies and Related Expressions. A: Concept Lattices and Their Applications. "CLA 2005 : proceedings of 3rd International Conference on Concept Lattices and Their Applications". Olomouc: 2005, p. 22-33.
Grup de recerca
LARCA - Laboratori d'Algorísmia Relacional, Complexitat i Aprenentatge

Participants

Arxius