241 search results - page 41 / 49 » Implementation of a discretionary access control model for s... |
SSD
2009
Springer
14 years 3 months ago
2009
Springer
The standard database mechanisms for concurrency control, which include transactions and locking protocols, do not provide the support needed for updating complex geographic data i...
COMCOM
2006
13 years 8 months ago
2006
the extensibility and evolution of network services and protocols had become a major research issue in recent years. The 'programmable' and 'active' network par...
CCS
2007
ACM
14 years 2 months ago
2007
ACM
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...
AIME
2005
Springer
14 years 2 months ago
2005
Springer
Though multi-agent systems have been explored in a wide variety of medical settings, their role at the primary care level has been relatively little investigated. In this paper, we...
SI3D
2006
ACM
14 years 2 months ago
2006
ACM
We describe a new interactive system for 3D design review, built to exploit the visual perception cue of motion parallax, in order to enhance shape perception and aesthetic evalua...