412 search results - page 9 / 83 » Aggregate queries over ontologies |
CORR
2010
Springer
13 years 4 months ago
2010
Springer
The ever-increasing amount of data in biomedical research, and in cancer research in particular, needs to be managed to support efficient data access, exchange and integration. Exi...
VLDB
2005
ACM
14 years 13 days ago
2005
ACM
We extend the OLAP data model to represent data ambiguity, specifically imprecision and uncertainty, and introduce an allocation-based approach to the semantics of aggregation qu...
CSB
2005
IEEE
2005
IEEE
BioNavigation: Using Ontologies to Express Meaningful Navigational Queries Over Biological Resources
14 years 17 days ago
Exploiting the complex maze of publicly available Biological resources to implement scientific data collection pipelines poses a multitude of challenges to biologists in accurate...
DLOG
2009
13 years 8 months ago
2009
Abstract. We present a family of expressive extensions of Datalog, called Datalog
PODS
2009
ACM
14 years 7 months ago
2009
ACM
d Abstract) Andrea Cal`i2,1 , Georg Gottlob1,2 , and Thomas Lukasiewicz1, 1 Computing Laboratory, University of Oxford, UK firstname.lastname@comlab.ox.ac.uk 2 Oxford-Man Institute...