Myszkorowski, Krzysztof2021-07-152021-07-152016Myszkorowski, 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.2016.24.3.21-321507-0360http://hdl.handle.net/11652/3847https://doi.org/10.34658/jacs.2016.24.3.21-32The 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.enFair use conditionDla wszystkich w zakresie dozwolonego użytkufuzzy databasesfuzzy setsfuzzy functional dependenciespossibility distributionsinference rulesrozmyte bazy danychzbiory rozmyterozmyte zależności funkcjonalnemożliwość dystrybucjireguły wnioskowaniaArtykułLUT LicenseLicencja PŁhttps://doi.org/10.34658/jacs.2016.24.3.21-3210.34658/jacs.2016.24.3.21-32