315 search results - page 12 / 63 » Specifying multimedia access control using RDF |
DBSEC
2010
13 years 8 months ago
2010
Abstract. We present a modelling language, called X-Policy, for webbased collaborative systems with dynamic access control policies. The access to resources in these systems depend...
SAC
2002
ACM
13 years 7 months ago
2002
ACM
We argue that matrix-based models are inadequate for regulating business to business (or B2B, for short) e-commerce due to the diversity, complexity and potential large number of ...
ISN
1999
Springer
13 years 11 months ago
1999
Springer
This paper presents a novel approach that simplifies real-time multimedia communication applications development and service provision. Such applications are no longer required to...
ICMCS
2006
IEEE
14 years 1 months ago
2006
IEEE
In this paper we address the problem of providing conditional access to video sequences, namely, to generate a low-quality video to be used as preview, which can be decoded at ful...
VLDB
2008
ACM
14 years 7 months ago
2008
ACM
Abstract In this article, we present a comprehensive approach for privacy preserving access control based on the notion of purpose. In our model, purpose information associated wit...