Integrity Rules for Multiargument Relationships in Possibilistic Databases

Miniatura

Pliki

2_Integ_rules_Myszkorowski_2016.pdf (134.15 KB)

Data

2016

Autorzy

Tytuł czasopisma

ISSN czasopisma

Tytuł tomu

Wydawca

Wydawnictwo Politechniki Łódzkiej
Lodz University of Technology Press

Abstrakt

The paper contains an analysis of multiargument relationships in possibilistic databases. A multiargument relationship may be formally presented using the relational notation R(X1, X2,...,Xn), where R is the name of the relationship and attributes Xi denote keys of entity sets which participate in it. The dependencies between all n attributes describe the integrity constraints and must not be infringed. They constitute a restriction for relationships of fewer attributes. In the paper it is considered a possible coexistence of associations between k < n attributes of the n-ary relationship. The analysis is carried out using the theory of fuzzy functional dependencies. The notion of functional dependency has been appropriately extended according to the representation of data.

Opis

Słowa kluczowe

fuzzy databases, fuzzy sets, fuzzy functional dependencies, possibility distributions, inference rules, rozmyte bazy danych, zbiory rozmyte, rozmyte zależności funkcjonalne, możliwość dystrybucji, reguły wnioskowania

Cytowanie

Myszkorowski, K. (2016). Integrity Rules for Multiargument Relationships in Possibilistic Databases. Journal of Applied Computer Science, 24(3), 21-32. https://doi.org/10.34658/jacs.2016.24.3.21-32

URI

http://hdl.handle.net/11652/3847
 https://doi.org/10.34658/jacs.2016.24.3.21-32

Kolekcje

2016, Tom 24 Nr 3
Artykuły (WFTIiMS)