1000 search results - page 4 / 200 » Provenance for Aggregate Queries |
TKDE
2012
11 years 8 months ago
2012
—Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of som...
CONCURRENCY
2008
13 years 5 months ago
2008
ce that allows navigation from an abstract model of the experiment to instance data collected during a specific experiment run. We outline modest extensions to a commercial workflo...
CIKM
2008
Springer
13 years 8 months ago
2008
Springer
Answering queries over ontologies is an important issue for the Semantic Web. Aggregate queries were widely studied for relational databases but almost no results are known for ag...
CIKM
2009
Springer
13 years 9 months ago
2009
Springer
While provenance has been extensively studied in the literature, the efficient evaluation of provenance queries remains an open problem. Traditional query optimization techniques...
ICDE
2009
IEEE
13 years 4 months ago
2009
IEEE
Data provenance is information that describes how a given data item was produced. The provenance includes source and intermediate data as well as the transformations involved in pr...