1000 search results - page 29 / 200 » Provenance for Aggregate Queries |
ICDT
2009
ACM
14 years 10 months ago
2009
ACM
We study containment and equivalence of (unions of) conjunctive queries on relations annotated with elements of a commutative semiring. Such relations and the semantics of positiv...
ICDE
2008
IEEE
14 years 11 months ago
2008
IEEE
Aggregate measures summarizing subsets of data are valuable in exploratory analysis and decision support, especially when dependent aggregations can be easily specified and compute...
PODS
2011
ACM
13 years 21 days ago
2011
ACM
Database queries can be broadly classified into two categories: reporting queries and aggregation queries. The former retrieves a collection of records from the database that mat...
KDD
2008
ACM
14 years 10 months ago
2008
ACM
There is an exploding amount of user-generated content on the Web due to the emergence of "Web 2.0" services, such as Blogger, MySpace, Flickr, and del.icio.us. The part...
ICDE
2010
IEEE
14 years 2 months ago
2010
IEEE
Searching and mining large graphs today is critical to a variety of application domains, ranging from personalized recommendation in social networks, to searches for functional ass...