Date
2005
Dewey
Organisation des données
Sujet
Fuzzy database; fuzzy set; imperfect information; possibility distribution
Conference name
2nd International Symposium on Computational Intelligence and Intelligent Informatics (ISCIII'05)
Conference date
10-2005
Conference city
Hammamet
Conference country
Tunisie
Author
Bahri, Afef
Chakhar, Salem
Naïja, Yosr
Bouaziz, Rafik
Type
Communication / Conférence
Item number of pages
8
Abstract (EN)
Information in real-world applications is often
vague, imprecise and uncertain. Ignoring the inherent imperfect
nature of real-world will undoubtedly introduce some deformation of human perception of real-world and may eliminate several
substantial information, which may be very useful in several
data-intensive applications. In database context, several fuzzy
database models have been proposed. In these works, fuzziness
is introduced at different levels. Common to all these proposals is
the support of fuzziness at the attribute level. This paper proposes
first a rich set of data types devoted to model the different kinds
of imperfect information. The paper then proposes a formal
approach to implement these data types. The proposed approach
was implemented within a relational object database model but it
is generic enough to be incorporated into other database models.