2853 search results - page 14 / 571 » On the Efficiency of Provenance Queries |
FGCS
2000
13 years 7 months ago
2000
This paper focuses on parallel query optimization. We consider the operator problem and introduce a new class of execution strategies called Linear-Oriented Bushy Trees (LBTs). Co...
CORR
2008
Springer
13 years 7 months ago
2008
Springer
Provenance is information about the origin, derivation, ownership, or history of an object. It has recently been studied extensively in scientific databases and other settings due...
ICTAI
2009
IEEE
14 years 2 months ago
2009
IEEE
Abstract—In distributed environments, access control decisions depend on statements of multiple agents rather than only one central trusted party. However, existing policy langua...
MOBISYS
2007
ACM
14 years 7 months ago
2007
ACM
Provenance becomes a critical requirement for healthcare IT infrastructures, especially when pervasive biomedical sensors act as a source of raw medical streams for large-scale, a...
ER
2010
Springer
13 years 6 months ago
2010
Springer
: Data provenance is becoming increasingly important for biosciences with the advent of large-scale collaborative environments such as the iPlant collaborative, where scientists co...