ing and Refining Authorization in SQL Arnon Rosenthal, Edward Sciore1 The SQL standard specifies authorization via a large set of rather opaque rules, which are difficult to unders...
This paper introduces the MREF framework for representing and correlating information at a higher semantic level than is possible with Web-based information systems today. The rol...
: Recursive queries are required in many object-oriented database applications. Among them we can mention Bill-Of-Material (BOM), stock market dependencies, various kinds of networ...
Tomasz Pieciukiewicz, Krzysztof Stencel, Kazimierz...
Learning Content Management Systems (LCMS) supports e-learning applications with storage and efficient access for e-learning objects (LO)s. ROSA is a LCMS built as a semantic laye...
Fabio Porto, Ana Maria de Carvalho Moura, Adriana ...
Ontologies are set to play a key role in the "Semantic Web", extending syntactic interoperability to semantic interoperability by providing a source of shared and precis...