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» Monitoring continuous queries over streaming locations
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SIGMOD
2005
ACM
254views Database» more  SIGMOD 2005»
14 years 8 months ago
Conceptual Partitioning: An Efficient Method for Continuous Nearest Neighbor Monitoring
Given a set of objects P and a query point q, a k nearest neighbor (k-NN) query retrieves the k objects in P that lie closest to q. Even though the problem is well-studied for sta...
Kyriakos Mouratidis, Marios Hadjieleftheriou, Dimi...
SSDBM
2005
IEEE
140views Database» more  SSDBM 2005»
14 years 2 months ago
Optimizing In-Order Execution of Continuous Queries over Streamed Sensor Data
The widespread use of sensor networks in scientific and engineering applications leads to increased demand on the efficient computation of the collected sensor data. Recent rese...
Moustafa A. Hammad, Walid G. Aref, Ahmed K. Elmaga...
DEBS
2008
ACM
13 years 10 months ago
Real-time, load-adaptive processing of continuous queries over data streams
We introduce a new type of query, called a real-time continuous query (RCQ), that captures the real-time requirements of processing data streams. We develop techniques to efficien...
Dhananjay Kulkarni, Chinya V. Ravishankar, Mitch C...
IS
2007
13 years 8 months ago
Evaluation of probabilistic queries over imprecise data in constantly-evolving environments
Sensors are often employed to monitor continuously changing entities like locations of moving objects and temperature. The sensor readings are reported to a database system, and a...
Reynold Cheng, Dmitri V. Kalashnikov, Sunil Prabha...
ICDE
2007
IEEE
221views Database» more  ICDE 2007»
14 years 2 months ago
Flexible Multi-Threaded Scheduling for Continuous Queries over Data Streams
A variety of real-world applications share the property that data arrives in form of transient streams. Data stream management systems (DSMS) provide convenient solutions to the p...
Michael Cammert, Christoph Heinz, Jürgen Kr&a...