2063 search results - page 31 / 413 » Containment of Aggregate Queries |
JCIT
2010
13 years 4 months ago
2010
Much information over the Internet is expressed by natural languages. The management of linguistic information involves an operation of comparison and aggregation. In this paper, ...
AMW
2010
13 years 11 months ago
2010
In this work we present in-network techniques to improve the efficiency of spatial aggregate queries. Such queries are very common in a sensornet setting, demanding more targeted t...
SIGMOD
2007
ACM
14 years 10 months ago
2007
ACM
An emerging challenge in modern distributed querying is to efficiently process multiple continuous aggregation queries simultaneously. Processing each query independently may be i...
EDBT
2004
ACM
14 years 10 months ago
2004
ACM
AMW
2009
13 years 11 months ago
2009
In data exchange, data are materialised from a source schema to a target schema, according to suitable source-to-target constraints. Constraints are also expressed on the target sc...