4051 search results - page 61 / 811 » Aggregation |
140
Voted
SSD
2007
Springer
15 years 6 months ago
2007
Springer
We address continuously processing an aggregation join query over data streams. Queries of this type involve both join and aggregation operations, with windows specified on join ...
101
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SENSYS
2006
ACM
15 years 6 months ago
2006
ACM
Computing and maintaining network structures for efficient data aggregation incurs high overhead for dynamic events where the set of nodes sensing an event changes with time. Mor...
119
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SENSYS
2004
ACM
15 years 6 months ago
2004
ACM
Wireless sensor networks offer the potential to span and monitor large geographical areas inexpensively. Sensors, however, have significant power constraint (battery life), makin...
105
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VLDB
1987
ACM
15 years 4 months ago
1987
ACM
is at least ae powerful as SQL. Two well known relational query languages that have a sound theoretical foundation are relational algebra and relational calculus. As SQL is more cl...
89
Voted
IM
2007
15 years 1 months ago
2007
Abstract—We investigate the use of gossip protocols for continuous monitoring of network-wide aggregates under crash failures. Aggregates are computed from local management varia...