In this paper we explore the structure and semantic properties of the entities stored in statistical databases. We call such entities "statistical objects" (SOS) and prop...
Modern database systems provide not only powerful data models but also complex query languages supporting powerful features such as the ability to create new database objects and ...
Subtyping in first order object calculi is studied with respect to the logical semantics obtained by identifying terms that satisfy the same set of predicates, as formalised throu...
The UML's Object Constraint Language provides the modeller of object-oriented systems with ways to express the semantics of a model in a precise and declarative manner. The co...
Abstract. The increase in accessability to on-line visual data has promoted the interest in browsing and retrieval of images from Image Databases. Current approaches assume either ...