1000 search results - page 12 / 200 » Provenance for Aggregate Queries |
SBBD
2007
13 years 11 months ago
2007
The optimization of similarity queries using metric access methods has been widely discussed in the last decades. Similarity queries consider one object as the query center, and re...
DLOG
2003
13 years 11 months ago
2003
This paper presents an application of a DL reasoner to the optimization of an object-relational query language. Queries containing aggregate functions are difficult to optimize be...
FAST
2009
13 years 7 months ago
2009
Provenance capture as applied to execution oriented and interactive workflows is designed to record minute detail needed to support a "modify and restart" paradigm as we...
CCS
2010
ACM
14 years 4 months ago
2010
ACM
In distributed environments, statements from a number of principals, besides the central trusted party, may influence the derivations of authorization decisions. However, existin...
SIGMOD
2008
ACM
14 years 10 months ago
2008
ACM
Scientific workflow systems are increasingly used to automate complex data analyses, largely due to their benefits over traditional approaches for workflow design, optimization, a...