253 search results - page 17 / 51 » On the Decidability of the Safety Problem for Access Control... |
CDC
2008
IEEE
14 years 3 months ago
2008
IEEE
—We study the problem of dynamic spectrum sensing and access in cognitive radio systems as a partially observed Markov decision process (POMDP). A group of cognitive users cooper...
DBSEC
2000
13 years 10 months ago
2000
Abstract At the start of its present term of office in 1997 the UK government published a planning document promising ubiquitous access to Electronic Health Records (EHRs) held wit...
GLOBECOM
2007
IEEE
14 years 19 days ago
2007
IEEE
We design opportunistic spectrum access strategies for improving spectrum efficiency. In each slot, a secondary user chooses a subset of channels to sense and decides whether to ac...
SAC
2010
ACM
14 years 3 months ago
2010
ACM
Complex organizations need to establish access control policies in order to manage access to restricted resources. Role Based Access Control paradigm has been introduced in ’90 ...
POLICY
2009
Springer
14 years 3 months ago
2009
Springer
This paper addresses an important open problem confronting any decentralized and stateful access control (AC) mechanism for networked systems, particularly when the system at hand...