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» Optimizing Queries in Extended Relational Databases
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DEXAW
2007
IEEE
141views Database» more  DEXAW 2007»
15 years 5 months ago
SWARD: Semantic Web Abridged Relational Databases
The semantic web represents meta-data as a relation of triples using the RDF data model. We have developed a virtual repository system that enables to process queries to RDF views...
Johan Petrini, Tore Risch
75
Voted
VLDB
1997
ACM
93views Database» more  VLDB 1997»
15 years 3 months ago
Optimizing Queries with Universal Quantification in Object-Oriented and Object-Relational Databases
Jens Claußen, Alfons Kemper, Guido Moerkotte...
101
Voted
PODS
2010
ACM
249views Database» more  PODS 2010»
15 years 4 months ago
Semantic query optimization in the presence of types
Both semantic and type-based query optimization rely on the idea that queries often exhibit non-trivial rewritings if the state space of the database is restricted. Despite their ...
Michael Meier 0002, Michael Schmidt, Fang Wei, Geo...
BTW
2007
Springer
114views Database» more  BTW 2007»
15 years 28 days ago
Pathfinder: A Relational Query Optimizer Explores XQuery Terrain
Jan Rittinger, Jens Teubner, Torsten Grust