2063 search results - page 70 / 413 » Containment of Aggregate Queries |
ICDE
2001
IEEE
14 years 11 months ago
2001
IEEE
We consider the problems of computing aggregation queries in temporal databases, and of maintaining materialized temporal aggregate views efficiently. The latter problem is partic...
JDM
2007
13 years 10 months ago
2007
We present a new method for computing temporal aggregation that uses a multidimensional index. The novelty of our method lies in mapping the start time and end time of a temporal ...
NETWORKING
2004
13 years 11 months ago
2004
If efficient network analysis tools were available, it could become possible to detect the attacks, anomalies and to appropriately take action to contain the attacks. In this paper...
DBPL
2005
Springer
2005
Springer
Complexity and Approximation of Fixing Numerical Attributes in Databases Under Integrity Constraints
14 years 3 months ago
Consistent query answering is the problem of computing the answers from a database that are consistent with respect to certain integrity constraints that the database as a whole ma...
DBPL
2001
Springer
14 years 2 months ago
2001
Springer
Abstract. We are interested in the theoretical foundations of the optimization of conjunctive regular path queries (CRPQs). The basic problem here is deciding query containment bot...