112 search results - page 5 / 23 » Predicate Result Range Caching for Continuous Queries |
ADBIS
1998
Springer
14 years 2 months ago
1998
Springer
In order to answer efficiently range queries in 2-d R-trees, first we sort queries by means of a space filling curve, then we group them together, and finally pass them for process...
BNCOD
2011
12 years 9 months ago
2011
Due to high data volumes and unpredictable arrival rates, continuous query systems processing expensive queries in real-time may fail to keep up with the input data streams - resul...
PODS
2008
ACM
14 years 10 months ago
2008
ACM
We study complexity and approximation of queries in an expressive query language for probabilistic databases. The language studied supports the compositional use of confidence com...
ICDE
1998
IEEE
14 years 11 months ago
1998
IEEE
We have developed a MultiMedia Visual Information Seeking (MMVIS) Environment that is the first system to support an integrated approach to the direct manipulation specification o...
MDM
2007
Springer
14 years 3 months ago
2007
Springer
This work tackles the problem of answer-aggregation for continuous spatio-temporal range queries in distributed settings. We assume a grid-like coverage of the spatial universe of...