Sciweavers

1125 search results - page 113 / 225
» Query Answering in Inconsistent Databases
Sort
View
DEXA
2003
Springer
149views Database» more  DEXA 2003»
15 years 7 months ago
Capturing Uncertainty in Spatial Queries over Imprecise Data
Emerging applications using miniature electronic devices (e.g., tracking mobile objects using sensors) generate very large amounts of highly dynamic data that poses very high overh...
Xingbo Yu, Sharad Mehrotra
EDBT
2012
ACM
228views Database» more  EDBT 2012»
13 years 4 months ago
Towards scalable data integration under constraints
In this paper we consider the problem of answering queries using views, with or without ontological constraints, which is important for data integration, query optimization, and d...
George Konstantinidis, José Luis Ambite
DOLAP
2004
ACM
15 years 7 months ago
Aggregate queries in peer-to-peer OLAP
A peer-to-peer (P2P) data management system consists essentially of a network of peer systems, each maintaining full autonomy over its own data resources. Data exchange between pe...
Mauricio Minuto Espil, Alejandro A. Vaisman
DASFAA
2010
IEEE
129views Database» more  DASFAA 2010»
15 years 6 months ago
Efficient Approximate Visibility Query in Large Dynamic Environments
Abstract. Visibility query is fundamental to many analysis and decisionmaking tasks in virtual environments. Visibility computation is time complex and the complexity escalates in ...
Leyla Kazemi, Farnoush Banaei Kashani, Cyrus Shaha...
PVLDB
2010
98views more  PVLDB 2010»
15 years 21 days ago
On-the-Fly Entity-Aware Query Processing in the Presence of Linkage
Entity linkage is central to almost every data integration and data cleaning scenario. Traditional techniques use some computed similarity among data structure to perform merges a...
Ekaterini Ioannou, Wolfgang Nejdl, Claudia Nieder&...