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» D2R MAP - A Database to RDF Mapping Language
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PODS
2007
ACM
142views Database» more  PODS 2007»
14 years 7 months ago
Quasi-inverses of schema mappings
Schema mappings are high-level specifications that describe the relationship between two database schemas. Two operators on schema mappings, namely the composition operator and th...
Ronald Fagin, Phokion G. Kolaitis, Lucian Popa, Wa...
WMP
2000
13 years 11 months ago
Parikh Mapping and Iteration
orms of Grammars, Finite Automata, Abstract Families, and Closure Properties of Multiset Languages . . . . 135 Manfred Kudlek, Victor Mitrana On Multisets in Database Systems . . ....
Jürgen Dassow
BTW
2007
Springer
93views Database» more  BTW 2007»
14 years 1 months ago
Towards an Integrated Model for Data, Metadata, and Operations
: Information integration requires manipulating data and metadata in ways that in general go beyond a single existing transformation formalism. As a result, a complete source-to-ta...
Jürgen Göres, Stefan Dessloch
ICDT
2007
ACM
90views Database» more  ICDT 2007»
14 years 1 months ago
On the Expressiveness of Implicit Provenance in Query and Update Languages
Abstract. Information concerning the origin of data (that is, its provenance) is important in many areas, especially scientific recordkeeping. Currently, provenance information mu...
Peter Buneman, James Cheney, Stijn Vansummeren
CAISE
2006
Springer
13 years 11 months ago
VisAVis: An Approach to an Intermediate Layer between Ontologies and Relational Database Contents
This paper introduces an approach to mapping relational database contents to ontologies. The current effort is motivated by the need of including into the Semantic Web volumes of w...
Nikolaos Konstantinou, Dimitrios-Emmanuel Spanos, ...