EDBT
2009
ACM
13 years 7 months ago
2009
ACM
With the amount of data in current data warehouse databases growing steadily, random sampling is continuously gaining in importance. In particular, interactive analyses of large d...
SIGMOD
2006
ACM
13 years 10 months ago
2006
ACM
Although approximate query processing is a prominent way to cope with the requirements of data analysis applications, current database systems do not provide integrated and compre...
SIGMOD
2002
ACM
14 years 4 months ago
2002
ACM
Recently several important relational database tasks such as index selection, histogram tuning, approximate query processing, and statistics selection have recognized the importan...
SIGMOD
2003
ACM
14 years 4 months ago
2003
ACM
In decision support applications, the ability to provide fast approximate answers to aggregation queries is desirable. One commonly-used technique for approximate query answering ...
VLDB
2009
ACM
14 years 4 months ago
2009
ACM
We consider the problem of using sampling to estimate the result of an aggregation operation over a subset-based SQL query, where a subquery is correlated to an outer query by a NO...
VLDB
2001
ACM
14 years 4 months ago
2001
ACM
Approximate query processing has emerged as a costeffective approach for dealing with the huge data volumes and stringent response-time requirements of today's decision-suppo...
ICDE
2004
IEEE
14 years 5 months ago
2004
IEEE
Several spatio-temporal applications require the retrieval of summarized information about moving objects that lie in a query region during a query interval (e.g., the number of m...
ICDE
2004
IEEE
14 years 5 months ago
2004
IEEE
Moving objects (e.g., vehicles in road networks) continuously generate large amounts of spatio-temporal information in the form of data streams. Efficient management of such strea...
ICDE
2006
IEEE
14 years 5 months ago
2006
IEEE
One important way in which sampling for approximate query processing in a database environment differs from traditional applications of sampling is that in a database, it is feasi...
ICDE
2008
IEEE
14 years 5 months ago
2008
IEEE
Supporting top-k queries over distributed collections of schemaless XML data poses two challenges. While XML supports expressive query languages such as XPath and XQuery, these la...