136 search results - page 25 / 28 » Query optimizer for spatial join operations |
SIGMOD
2001
ACM
14 years 8 months ago
2001
ACM
Virtually all proposals for querying XML include a class of query we term "containment queries". It is also clear that in the foreseeable future, a substantial amount of...
SIGMOD
2007
ACM
14 years 8 months ago
2007
ACM
Commercial enterprise data warehouses are typically implemented on parallel databases due to the inherent scalability and performance limitation of a serial architecture. Queries ...
EDBT
2011
ACM
12 years 11 months ago
2011
ACM
The popularity of batch-oriented cluster architectures like Hadoop is on the rise. These batch-based systems successfully achieve high degrees of scalability by carefully allocati...
EDBT
2006
ACM
14 years 8 months ago
2006
ACM
Abstract. Many different index structures have been proposed for spatial databases to support efficient query processing. However, most of these index structures suffer from an exp...
ESWS
2008
Springer
13 years 9 months ago
2008
Springer
In this contribution a system is presented, which provides access to distributed data sources using Semantic Web technology. While it was primarily designed for data sharing and sc...