Fuzzy set theory has been extensively applied to extend various data models and resulted in
numerous contributions, mainly with respect to the popular relational model or to some …

The information to be stored in databases is not always precise and certain, and,
occasionally, some information might be missing altogether. 1 When the available …

This handbook provides information about fundamental aspects of the field and explores the
myriad applications of fuzzy logic techniques and methods. It presents basic conceptual …

Der Begriff „Datenbank “gehört längst zum Alltagswortschatz. Manager und
Verwaltungsangestellte, aber auch Studierende fast aller Fachrichtungen verwenden ihn …

In the context of regular relational databases, functional dependencies have received a lot of
attention, since they capture some semantics about the data related to redundancy …

Different approaches have been used to define fuzzy functional dependencies (FFDs) but
unlike normal functional dependencies (FDs) one unique approach has not dominated. FDS …

This chapter will present the use of fuzzy set theory in databases. Particular emphasis is on
the relational data model and possibility and similarity based approaches to representation …

In the context of regular relational databases, functional dependencies have received a lot of
attention, since they capture some semantics about the data related to redundancy …

The queries on type-2 fuzzy relational databases may get non-reasonable answers, and as
pointed out by Buckles, a tuple's membership value is not static but is a measure of the …

Das erfolgreiche Lehr-und Fachbuch führt in der sechsten, überarbeiteten und erweiterten
Auflage umfassend in das Gebiet der relationalen und postrelationalen Datenbanken ein …