706 search results - page 98 / 142 » Access Control: Policies, Models, and Mechanisms |
CRIWG
2001
13 years 10 months ago
2001
The coordination of interdependencies between tasks in collaborative environments is a very important and difficult endeavor. The separation between tasks and interdependencies al...
SOUPS
2009
ACM
14 years 3 months ago
2009
ACM
Online social network sites, such as MySpace, Facebook and others have grown rapidly, with hundreds of millions of active users. A new feature on many sites is social applications...
ICDE
1998
IEEE
14 years 10 months ago
1998
IEEE
?Past R-tree studies have focused on the number of nodes visited as a metric of query performance. Since database systems usually include a buffering mechanism, we propose that the...
ICPP
2008
IEEE
14 years 3 months ago
2008
IEEE
—Data replications is a typical strategy for improving access performance and data availability in Data Grid systems. Current works on data replication in Grid systems focus on t...
TGC
2005
Springer
14 years 2 months ago
2005
Springer
Abstract. We present a formal system that models programmable abstractions for access control. Composite abstractions and patterns of arbitrary complexity are modeled as a configu...