A simple extension to the relational model that permits metadata (more generally metaknowledge) to be stored and manipulated as first class data is proposed. The accompanying que...
Taxonomies are a well-established instrument for organizing and accessing resources in Information, Content and Knowledge Management (ICKM) systems. Furthermore, they contribute t...
We focus in this paper on some meta-level ontological distinctions among unary predicates, like those between concepts and assertional properties. Three are the main contributions...
In [23] we presented a partial evaluation scheme for a “real life” subset of Prolog, containing first-order built-in’s, simple side-effects and the operational predicate i...
Dependently typed lambda calculi such as the Logical Framework (LF) can encode relationships between terms in types and can naturally capture correspondences between formulas and ...