318 search results - page 28 / 64 » Optimization of Query Streams Using Semantic Prefetching |
IMC
2005
ACM
14 years 1 months ago
2005
ACM
Sketch is a sublinear space data structure that allows one to approximately reconstruct the value associated with any given key in an input data stream. It is the basis for answer...
JACM
2012
11 years 10 months ago
2012
A fundamental problem in data management is to draw and maintain a sample of a large data set, for approximate query answering, selectivity estimation, and query planning. With la...
VLDB
2007
ACM
14 years 8 months ago
2007
ACM
In distributed stream processing environments, large numbers of continuous queries are distributed onto multiple servers. When one or more of these servers become overloaded due t...
STOC
2007
ACM
14 years 8 months ago
2007
ACM
Motivated by the capabilities of modern storage architectures, we consider the following generalization of the data stream model where the algorithm has sequential access to multi...
WWW
2008
ACM
14 years 8 months ago
2008
ACM
Because of the high volume and unpredictable arrival rate, stream processing systems may not always be able to keep up with the input data streams-- resulting in buffer overflow a...