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» Knowledge Representation using Schema Tuple Queries
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ESWS
2004
Springer
14 years 12 days ago
Reverse Engineering of Relational Databases to Ontologies
Abstract. We propose a novel approach to reverse engineering of relational databases to ontologies. Our approach is based on the idea that semantics of a relational database can be...
Irina Astrova
SEMWEB
2007
Springer
14 years 1 months ago
An Event-Based Approach for Semantic Metadata Interoperability
Abstract. This paper presents a method for making metadata conforming to heterogeneous schemas semantically interoperable. The idea is to make the knowledge embedded in the schema ...
Tuukka Ruotsalo, Eero Hyvönen
WEBNET
2000
13 years 8 months ago
Conventions for Knowledge Representation via RDF
The Resource Description Framework [RDF] provides a basic model to describe relationships between objects. Ultimately, it is intended to permit the representation, combination and ...
Philippe Martin, Peter W. Eklund
DLOG
2008
13 years 9 months ago
Taming the Infinite Chase: Query Answering under Expressive Relational Constraints
Answering queries posed over knowledge bases is a central problem in knowledge representation and database theory. In databases, query containment is one of the important query op...
Andrea Calì, Georg Gottlob, Michael Kifer
DAMON
2008
Springer
13 years 8 months ago
DSM vs. NSM: CPU performance tradeoffs in block-oriented query processing
Comparisons between the merits of row-wise storage (NSM) and columnar storage (DSM) are typically made with respect to the persistent storage layer of database systems. In this pa...
Marcin Zukowski, Niels Nes, Peter A. Boncz