429 search results - page 17 / 86 » Query Planning for Continuous Aggregation Queries over a Net... |
DBSEC
2006
13 years 9 months ago
2006
In the Database-As-a-Service (DAS) model, clients store their database contents at servers belonging to potentially untrusted service providers. To maintain data confidentiality, ...
ICDE
2012
IEEE
11 years 10 months ago
2012
IEEE
—On a stream of two dimensional data items (x, y) where x is an item identifier, and y is a numerical attribute, a correlated aggregate query requires us to first apply a selec...
SAC
2008
ACM
13 years 7 months ago
2008
ACM
We address aggregate queries over GIS data and moving object data, where non-spatial information is stored in a data warehouse. We propose a formal data model and query language t...
ICDE
2005
IEEE
14 years 8 months ago
2005
IEEE
Resource Description Framework (RDF) is a rapidly expanding web standard. RDF databases attempt to track the massive amounts of web data and services available. In this paper, we ...
VLDB
2007
ACM
14 years 7 months ago
2007
ACM
Many aspects of the data integration problem have been considered in the literature: how to match schemas across different data sources, how to decide when different records refer...