179 search results - page 26 / 36 » The Data Warehouse in a Distributed Utility Environment |
VLDB
2007
ACM
14 years 1 months ago
2007
ACM
A top-k query retrieves the k highest scoring tuples from a data set with respect to a scoring function defined on the attributes of a tuple. The efficient evaluation of top-k q...
VLDB
2005
ACM
14 years 28 days ago
2005
ACM
To answer user queries, a data integration system employs a set of semantic mappings between the mediated schema and the schemas of data sources. In dynamic environments sources o...
JAMIA
2011
12 years 10 months ago
2011
Background Providers have been reluctant to disclose patient data for public-health purposes. Even if patient privacy is ensured, the desire to protect provider confidentiality h...
COLCOM
2009
IEEE
14 years 5 days ago
2009
IEEE
— Sharing personal information and documents is pervasive in Web 2.0 environments, which creates the need for properly controlling shared data. Most existing authorization and po...
JPDC
2008
13 years 7 months ago
2008
This research investigates the problem of robust static resource allocation for distributed computing systems operating under imposed Quality of Service (QoS) constraints. Often, ...