750 search results - page 11 / 150 » Aggregates in Possibilistic Databases |
SIGMOD
2010
ACM
13 years 7 months ago
2010
ACM
Many websites provide restrictive form-like interfaces which allow users to execute search queries on the underlying hidden databases. In this paper, we consider the problem of es...
VLDB
1995
ACM
13 years 10 months ago
1995
ACM
Efficient processing of aggregation queries is essential for decision support applications. This paper describes a class of query transformations, called eager aggregation and lat...
EDBT
2009
ACM
13 years 10 months ago
2009
ACM
Temporal aggregation is a crucial operator in temporal databases and has been studied in various flavors. In instant temporal aggregation (ITA) the aggregate value at time instan...
PODS
2001
ACM
14 years 6 months ago
2001
ACM
ICDE
2009
IEEE
14 years 8 months ago
2009
IEEE
Recent interest in managing uncertainty in data