2847 search results - page 319 / 570 » The Context-Dependent Role Model |
186
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SODA
2012
ACM
13 years 9 months ago
2012
ACM
We study the role that parallelism plays in time complexariants of Winfree’s abstract Tile Assembly Model (aTAM), a model of molecular algorithmic self-assembly. In the “hiera...
246
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SACMAT
2009
ACM
16 years 1 months ago
2009
ACM
An access control system is often viewed as a state transition system. Given a set of access control policies, a general safety requirement in such a system is to determine whethe...
184
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SIGIR
2009
ACM
16 years 1 months ago
2009
ACM
Social network systems, like last.fm, play a significant role in Web 2.0, containing large amounts of multimedia-enriched data that are enhanced both by explicit user-provided an...
178
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CCS
2007
ACM
16 years 26 days 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 ...
169
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ER
2007
Springer
16 years 26 days ago
2007
Springer
The goal of this article is to formalize Object Role Modeling (ORM) using the DLR description logic. This would enable automated reasoning on the formal properties of ORM diagrams,...