Abstract. RDF will often be the metadata model of choice in the Semantic Sensor Web. However, RDF can only represent thematic metadata and needs to be extended if we want to model ...
We study complexity and approximation of queries in an expressive query language for probabilistic databases. The language studied supports the compositional use of confidence com...
ODRA (Object Database for Rapid Application development) is an object-oriented application development environment currently being constructed at the Polish-Japanese Institute of I...
Abstract. Information concerning the origin of data (that is, its provenance) is important in many areas, especially scientific recordkeeping. Currently, provenance information mu...
If you have ever encountered a piece of highly domain-specific business software, you may have noticed that it was largely a graphical front-end to some relational database. You ...