1552 search results - page 30 / 311 » Efficient Aggregate Computation over Data Streams |
ACSW
2004
13 years 9 months ago
2004
A data stream is a continuous and high-speed flow of data items. High speed refers to the phenomenon that the data rate is high relative to the computational power. The increasing...
PODS
2005
ACM
14 years 7 months ago
2005
ACM
In sensor networks, data acquisition frequently takes place at lowcapability devices. The acquired data is then transmitted through a hierarchy of nodes having progressively incre...
COMPGEOM
2004
ACM
14 years 1 months ago
2004
ACM
We consider the problem of approximate range counting over streams of d-dimensional points. In the data stream model, the algorithm makes a single scan of the data, which is prese...
CIKM
2006
Springer
13 years 11 months ago
2006
Springer
A fundamental building block of many data mining and analysis approaches is density estimation as it provides a comprehensive statistical model of a data distribution. For that re...
FQAS
2009
Springer
14 years 2 months ago
2009
Springer
Abstract. Controlled languages (CLs) are ambiguity-free subsets of natural languages such as English offering a good trade-off between the formal rigor of ontology and query langua...