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» Semantics and Complexity of SPARQL
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KR
2010
Springer
15 years 9 months ago
Worst-Case Optimal Reasoning for the Horn-DL Fragments of OWL 1 and 2
Horn fragments of Description Logics (DLs) have gained popularity because they provide a beneficial trade-off between expressive power and computational complexity and, more spec...
Magdalena Ortiz, Sebastian Rudolph, Mantas Simkus
PODS
1995
ACM
139views Database» more  PODS 1995»
15 years 8 months ago
Normalizing Incomplete Databases
Databases are often incomplete because of the presence of disjunctive information, due to con icts, partial knowledge and other reasons. Queries against such databases often ask q...
Leonid Libkin
WWW
2003
ACM
16 years 5 months ago
Super-peer-based routing and clustering strategies for RDF-based peer-to-peer networks
RDF-based P2P networks have a number of advantages compared with simpler P2P networks such as Napster, Gnutella or with approaches based on distributed indices such as CAN and CHO...
Alexander Löser, Christoph Schmitz, Ingo Brun...
ERSHOV
2009
Springer
15 years 11 months ago
Towards a Scalable, Pragmatic Knowledge Representation Language for the Web
Abstract. A basic cornerstone of the Semantic Web are formal languages for describing resources in a clear and unambiguous way. Logical underpinnings facilitate automated reasoning...
Florian Fischer, Gulay Ünel, Barry Bishop, Di...
CDVE
2007
Springer
124views Visualization» more  CDVE 2007»
15 years 10 months ago
"Integrare", a Collaborative Environment for Behavior-Oriented Design
In order to build complex, large-scale, dependable systems it is necessary to use a development environment with an integrated set of capabilities that supports editing and formal...
Lian Wen, Robert Colvin, Kai Lin, John Seagrott, N...