485 search results - page 36 / 97 » Processing complex aggregate queries over data streams |
DAWAK
2010
Springer
15 years 1 months ago
2010
Springer
Spatial data warehouses (SDW) enable analytical multidimensional queries together with spatial analysis. Mainly, three operations are related to SDW query processing performance: (...
110
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DEXA
2003
Springer
15 years 5 months ago
2003
Springer
Streaming XML documents has many emerging applications. However, in this paper, we show that the restrictions imposed by data streaming are too restrictive for processing twig quer...
136
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APPROX
2004
Springer
15 years 6 months ago
2004
Springer
The problem of estimating the kth frequency moment Fk for any nonnegative k, over a data stream by looking at the items exactly once as they arrive, was considered in a seminal pap...
114
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VLDB
1999
ACM
15 years 4 months ago
1999
ACM
On-Line Analytical Processing (OLAP) based on a dimensional view of data is being used increasingly for the purpose of analyzing very large amounts of data. To improve query perfo...
191
Voted
ICDE
2008
IEEE
16 years 1 months ago
2008
IEEE
In this paper, we address the problem of extending a relational database system to facilitate efficient real-time application of dynamic probabilistic models to streaming data. he ...