255 search results - page 40 / 51 » Approximate Query Answering on Sensor Network Data Streams |
IPPS
2009
IEEE
15 years 4 months ago
2009
IEEE
We consider the operator mapping problem for in-network stream processing, i.e., the application of a tree of operators in steady-state to multiple data objects that are continuou...
EDBT
2004
ACM
15 years 9 months ago
2004
ACM
Earlier work has demonstrated the effectiveness of in-network data aggregation in order to minimize the amount of messages exchanged during continuous queries in large sensor netwo...
TISSEC
2008
14 years 9 months ago
2008
Hop-by-hop data aggregation is a very important technique for reducing the communication overhead and energy expenditure of sensor nodes during the process of data collection in a...
167
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VLDB
2007
ACM
15 years 9 months ago
2007
ACM
We present STAR, a self-tuning algorithm that adaptively sets numeric precision constraints to accurately and efficiently answer continuous aggregate queries over distributed data...
118
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ESA
2007
Springer
15 years 3 months ago
2007
Springer
We present an experimental evaluation of an approximate distance oracle recently suggested by Thorup [1] for undirected planar graphs. The oracle uses the existence of graph separa...