1004 search results - page 20 / 201 » Safe Constraint Queries |
DLOG
2008
13 years 10 months ago
2008
Answering queries posed over knowledge bases is a central problem in knowledge representation and database theory. In databases, query containment is one of the important query op...
CDB
2004
Springer
13 years 11 months ago
2004
Springer
Abstract. Constraint databases that can be described by boolean combinations of polynomial inequalities over the reals have received ample research attention. In particular, the ex...
ICWE
2004
Springer
14 years 27 days ago
2004
Springer
Lookup of services is an important issues in many distributed systems. This paper deals with lookup in service-oriented architectures, such as Web services, P2P systems, GRIDs, or ...
TKDE
2010
13 years 5 months ago
2010
—Efficiency and privacy are two fundamental issues in moving object monitoring. This paper proposes a privacy-aware monitoring (PAM) framework that addresses both issues. The fra...
ICDE
1999
IEEE
14 years 9 months ago
1999
IEEE
We develop a data integration approach for the efficient evaluation of queries over autonomous source databases. The approach is based on some novel applications and extensions of...