35 search results - page 7 / 7 » Estimating aggregates in time-constrained approximate querie... |
PODS
2002
ACM
14 years 4 months ago
2002
ACM
Data Warehousing and OLAPapplications typically view data as having multiple logical dimensions e.g., product, location with natural hierarchies de ned on each dimension. OLAP que...
SSD
2007
Springer
13 years 10 months ago
2007
Springer
Abstract. Massive data streams of positional updates become increasingly difficult to manage under limited memory resources, especially in terms of providing near real-time respons...
ICDE
2007
IEEE
13 years 11 months ago
2007
IEEE
We consider the problem of semantic load shedding for continuous queries containing window joins on multiple data streams and propose a robust approach that is effective with the ...
SRDS
2008
IEEE
13 years 11 months ago
2008
IEEE
Distributed storage systems often use data replication to mask failures and guarantee high data availability. Node failures can be transient or permanent. While the system must ge...
ICDE
2005
IEEE
14 years 6 months ago
2005
IEEE
Efficient one-pass computation of F0, the number of distinct elements in a data stream, is a fundamental problem arising in various contexts in databases and networking. We consid...