1933 search results - page 33 / 387 » Query Containment Using Views |
111
Voted
IDEAS
2007
IEEE
15 years 8 months ago
2007
IEEE
In this paper we study the problem of deciding whether a regular path query over views in data-integration systems can be re-expressed without recursion. The problem becomes chall...
110
click to vote
PODS
2006
ACM
16 years 2 months ago
2006
ACM
Privacy-preserving query-answering systems answer queries while provably guaranteeing that sensitive information is kept secret. One very attractive notion of privacy is perfect p...
SIGMOD
2003
ACM
16 years 2 months ago
2003
ACM
Webcams, microphones, pressure gauges and other sensors provide exciting new opportunities for querying and monitoring the physical world. In this paper we focus on querying wide ...
117
Voted
ICDCSW
2007
IEEE
15 years 8 months ago
2007
IEEE
We have developed a data stream management system that supports declarative stream queries running over high data volumes in a supercomputing environment. To enable specification ...
155
click to vote
BTW
2007
Springer
15 years 8 months ago
2007
Springer
: For the integration of data that resides in autonomous data sources Software AG uses ontologies. Data source ontologies describe the data sources themselves. Business ontologies ...