427 search results - page 66 / 86 » Conjunctive Query Answering in EL using a Database System |
DOLAP
2010
ACM
13 years 6 months ago
2010
ACM
Inter-business collaborative contexts prefigure a distributed scenario where companies organize and coordinate themselves to develop common and shared opportunities. Traditional b...
SIGMOD
1997
ACM
14 years 24 days ago
1997
ACM
The Distributed Information Search COmponent (Disco) is a prototype heterogeneous distributed database that accesses underlying data sources. The Disco prototype currently focuses...
GIS
2007
ACM
14 years 14 days ago
2007
ACM
Spatial join is an important yet costly operation in spatial databases. In order to speed up the execution of a spatial join, the input tables are often indexed based on their spa...
ICDE
2007
IEEE
14 years 2 months ago
2007
IEEE
Data Stream Management Systems are useful when large volumes of data need to be processed in real time. Examples include monitoring network traffic, monitoring financial transacti...
SIGMOD
2002
ACM
14 years 8 months ago
2002
ACM
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...