418 search results - page 1 / 84 » Optimizing Large Join Queries in Mediation Systems |
ICDT
1999
ACM
13 years 9 months ago
1999
ACM
In data integration systems, queries posed to a mediator need to be translated into a sequence of queries to the underlying data sources. In a heterogeneous environment, with sour...
COOPIS
2002
IEEE
13 years 10 months ago
2002
IEEE
: This work investigates the integration of heterogeneous resources, such as data and programs, in a fully distributed peer-to-peer mediation architecture. The challenge in making ...
AMAI
2005
Springer
13 years 5 months ago
2005
Springer
Mediator systems integrate distributed, heterogeneous and autonomous data sources, but their e ective use requires the solution of hard query optimization problems. This is usuall...
ICDE
2001
IEEE
14 years 6 months ago
2001
IEEE
LeSelect is a mediator system which allows scientists to publish their resources (data and programs) so they can be transparently accessed. The scientists can typically issue quer...
ICDE
2007
IEEE
13 years 11 months ago
2007
IEEE
In a secure mediated information system, confidentiality is one of the main concerns when transmitting data from datasources to clients via a mediator. We present three approache...