PODS
2003
ACM
14 years 5 months ago
2003
ACM
In this paper we propose a new bottom-up query evaluation method for stratified deductive databases based on the Magic Set approach. As the Magic Sets rewriting may lead to unstra...
PODS
2003
ACM
14 years 5 months ago
2003
ACM
In recent years, the problem of indexing mobile objects has assumed great importance because of its relevance to a wide variety of applications. Most previous results in this area...
PODS
2003
ACM
14 years 5 months ago
2003
ACM
The sliding window model is useful for discounting stale data in data stream applications. In this model, data elements arrive continually and only the most recent N elements are ...
PODS
2003
ACM
14 years 5 months ago
2003
ACM
Normalization as a way of producing good database designs is a well-understood topic. However, the same problem of distinguishing well-designed databases from poorly designed ones...