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SIGMOD
2006
ACM
14 years 10 months ago
2006
ACM
We present our prototype system, OMCAT, which optimizes the reevaluation of a set of pending continuous spatio-temporal queries on trajectory data, when some of the trajectories a...
JIIS
2006
13 years 10 months ago
2006
Abstract In recent years, researchers have begun to study inductive databases, a new generation of databases for leveraging decision support applications. In this context, the user...
ICDE
2008
IEEE
14 years 11 months ago
2008
IEEE
Given a record set D and a query score function F, a top-k query returns k records from D, whose values of function F on their attributes are the highest. In this paper, we investi...
SIGMOD
2006
ACM
14 years 3 months ago
2006
ACM
Although approximate query processing is a prominent way to cope with the requirements of data analysis applications, current database systems do not provide integrated and compre...
SEMWEB
2009
Springer
14 years 2 months ago
2009
Springer
Scalable query answering over Description Logic (DL) based ontologies plays an important role for the success of the Semantic Web. Towards tackling the scalability problem, we prop...