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» A Formalization of ODMG Queries
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IS
2011
14 years 3 months ago
Collection trees for event-monitoring queries
In this paper we present algorithms for building and maintaining efficient collection trees that provide the conduit to disseminate data required for processing monitoring queries...
Antonios Deligiannakis, Yannis Kotidis, Vassilis S...
GI
2010
Springer
14 years 9 months ago
Query Languages for Semantic Web Services
: Even though service discovery is one of the vital steps in Web service invocation, service requests are usually expressed by rather simple means. While syntax-based service descr...
Stefan Schulte 0002, Melanie Siebenhaar, Julian Ec...
ICDE
2011
IEEE
238views Database» more  ICDE 2011»
14 years 3 months ago
Join queries on uncertain data: Semantics and efficient processing
— Uncertain data is quite common nowadays in a variety of modern database applications. At the same time, the join operation is one of the most important but expensive operations...
Tingjian Ge
DASFAA
2011
IEEE
231views Database» more  DASFAA 2011»
14 years 3 months ago
Querying Moving Objects with Uncertainty in Spatio-Temporal Databases
Spatio-temporal uncertainty is a special feature of moving objects due to the inability of precisely capturing or predicting their continuously changing locations. Indeterminate lo...
Hechen Liu, Markus Schneider
WISE
2005
Springer
15 years 5 months ago
A Formal Ontology Reasoning with Individual Optimization: A Realization of the Semantic Web
Abstract. Answering a query over a group of RDF data pages is a trivial process. However, in the Semantic Web, there is a need for ontology technology. Consequently, OWL, a family ...
Pakornpong Pothipruk, Guido Governatori