191 search results - page 7 / 39 » Online Aggregation over Trees |
DEXA
2009
Springer
15 years 4 months ago
2009
Springer
Semantic Web technologies facilitate data integration over a large number of sources with decentralised and loose coordination, ideally leading to interlinked datasets which descri...
85
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EUC
2006
Springer
15 years 1 months ago
2006
Springer
Abstract. Well-scheduled communications, in conjunction with the aggregation of data reduce the energy waste on idle listening and redundant transmissions. In addition, the adjusta...
ALGORITHMICA
2010
14 years 9 months ago
2010
We consider the online version of the maximum vertex disjoint path problem when the underlying network is a tree. In this problem, a sequence of requests arrives in an online fash...
103
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COMAD
2008
14 years 11 months ago
2008
Answering aggregate queries like sum, count, min, max over regions containing moving objects is often needed for virtual world applications, real-time monitoring systems, etc. Sin...
104
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DMTCS
2010
14 years 7 months ago
2010
This paper studies the fundamental trade-off between communication cost and delay cost arising in various contexts such as control message aggregation or organization theory. An o...