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» Quasi-inverses of schema mappings
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LAWEB
2003
IEEE
14 years 25 days ago
Storing RDF as a Graph
RDF is the first W3C standard for enriching information resources of the Web with detailed meta data. The semantics of RDF data is defined using a RDF schema. The most expressiv...
Valerie Bönström, Annika Hinze, Heinz Sc...
ESWS
2010
Springer
14 years 10 days ago
OWL Reasoning with WebPIE: Calculating the Closure of 100 Billion Triples
Abstract. In previous work we have shown that the MapReduce framework for distributed computation can be deployed for highly scalable inference over RDF graphs under the RDF Schema...
Jacopo Urbani, Spyros Kotoulas, Jason Maassen, Fra...
DOLAP
1998
ACM
13 years 11 months ago
Dynamic Maintenance of Multidimensional Range Data Partitioning for Parallel Data Processing
Star schema has been a typical model for both online transaction processing in traditional databases and online analytical processing in large data warehouses. In the star schema,...
Junping Sun, William I. Grosky
CAISE
2006
Springer
13 years 11 months ago
An Interactive, Asymmetric and Extensional Method for Matching Conceptual Hierarchies
Our work deals with schema or ontology matching and is driven by the following statements: (1) Most of works only consider intensional description of schemas; (2) They mostly use s...
Jérôme David, Fabrice Guillet, R&eacu...
ESWS
2008
Springer
13 years 9 months ago
Integrating Open Sources and Relational Data with SPARQL
We believe that the possibility to use SPARQL as a front end to heterogeneous data without significant cost in performance or expressive power is key to RDF taking its rightful pla...
Orri Erling, Ivan Mikhailov