360 search results - page 15 / 72 » Dynamic Sample Selection for Approximate Query Processing |
ICDE
2010
IEEE
14 years 8 months ago
2010
IEEE
Estimation via sampling out of highly selective join queries is well known to be problematic, most notably in online aggregation. Without goal-directed sampling strategies, samples...
DEXA
2009
Springer
14 years 10 days ago
2009
Springer
Abstract. Sensor database is a type of database management system which offers sensor data and stored data in its data model and query languages. In this system, when a user poses ...
SIGMOD
1999
ACM
14 years 23 days ago
1999
ACM
Selectivity estimation of queries is an important and wellstudied problem in relational database systems. In this paper, we examine selectivity estimation in the context of Geogra...
SIGMOD
2005
ACM
14 years 8 months ago
2005
ACM
Complex queries over high speed data streams often need to rely on approximations to keep up with their input. The research community has developed a rich literature on approximat...
BTW
2007
Springer
14 years 2 months ago
2007
Springer
: Statistics that accurately describe the distribution of data values in the columns of relational tables are essential for effective query optimization in a database management sy...