288 search results - page 18 / 58 » Beyond the traditional query operators |
174
Voted
ICDE
2003
IEEE
15 years 11 months ago
2003
IEEE
We present a query architecture in which join operators are decomposed into their constituent data structures (State Modules, or SteMs), and dataflow among these SteMs is managed ...
168
click to vote
ICDE
2002
IEEE
15 years 11 months ago
2002
IEEE
XML queries typically specify patterns of selection predicates on multiple elements that have some specified tree structured relationships. The primitive tree structured relations...
VLDB
1994
ACM
15 years 1 months ago
1994
ACM
In existing relational database systems, processing of group-by and computation of aggregate functions are always postponed until all joins are performed. In this paper, we presen...
163
click to vote
ICDE
2007
IEEE
15 years 11 months ago
2007
IEEE
The All Nearest Neighbor (ANN) operation is a commonly used primitive for analyzing large multi-dimensional datasets. Since computing ANN is very expensive, in previous works R*-t...
110
click to vote
ICDE
2012
IEEE
13 years 1 days ago
2012
IEEE
— Uncertainties in data arise for a number of reasons: when the data set is incomplete, contains conflicting information or has been deliberately perturbed or coarsened to remov...