176 search results - page 26 / 36 » Answering aggregate queries in data exchange |
INFSOF
2007
13 years 9 months ago
2007
Although spatio-temporal databases have received considerable attention recently, there has been little work on processing range sum queries on the historical records of moving ob...
ICDE
2009
IEEE
14 years 11 months ago
2009
IEEE
Large databases with uncertain information are becoming more common in many applications including data integration, location tracking, and Web search. In these applications, ranki...
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...
SIGMOD
2008
ACM
14 years 10 months ago
2008
ACM
Today's enterprise databases are large and complex, often relating hundreds of entities. Enabling ordinary users to query such databases and derive value from them has been o...
DOLAP
2000
ACM
14 years 2 months ago
2000
ACM
Being able to efficiently answer arbitrary OLAP queries that aggregate along any combination of dimensions over numerical and categorical attributes has been a continued, major co...