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» Fault-Tolerance in Distributed Query Processing
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GIS
2006
ACM
15 years 10 months ago
Optimization of multiple continuous queries over streaming satellite data
Remotely sensed data, in particular satellite imagery, play many important roles in environmental applications and models. In particular applications that study (rapid) changes in...
Quinn Hart, Michael Gertz
MDM
2009
Springer
116views Communications» more  MDM 2009»
15 years 4 months ago
Finding Probabilistic Nearest Neighbors for Query Objects with Imprecise Locations
—A nearest neighbor query is an important notion in spatial databases and moving object databases. In the emerging application fields of moving object technologies, such as mobi...
Yuichi Iijima, Yoshiharu Ishikawa
ACIVS
2005
Springer
15 years 3 months ago
Interactive Object-Based Retrieval Using Relevance Feedback
In this paper we present an interactive, object-based video retrieval system which features a novel query formulation method that is used to iteratively refine an underlying model...
Sorin Sav, Hyowon Lee, Noel E. O'Connor, Alan F. S...
DCOSS
2005
Springer
15 years 3 months ago
Multi-query Optimization for Sensor Networks
The widespread dissemination of small-scale sensor nodes has sparked interest in a powerful new database abstraction for sensor networks: Clients “program” the sensors through ...
Niki Trigoni, Yong Yao, Alan J. Demers, Johannes G...
KR
1992
Springer
15 years 1 months ago
Learning Useful Horn Approximations
While the task of answering queries from an arbitrary propositional theory is intractable in general, it can typicallybe performed e ciently if the theory is Horn. This suggests t...
Russell Greiner, Dale Schuurmans