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» A RBAC-Based Policy Information Base
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ICDCIT
2004
Springer
14 years 4 months ago
Automatic Enforcement of Access Control Policies Among Dynamic Coalitions
The need to securely share information on an ad-hoc basis between collaborating entities is increasingly becoming important. We propose a coalition based access control model (CBAC...
Vijayalakshmi Atluri, Janice Warner
CSFW
2003
IEEE
14 years 4 months ago
Using First-Order Logic to Reason about Policies
A policy describes the conditions under which an action is permitted or forbidden. We show that a fragment of (multi-sorted) first-order logic can be used to represent and reason...
Joseph Y. Halpern, Vicky Weissman
SAJ
2000
129views more  SAJ 2000»
13 years 10 months ago
Conflict analysis as a means of enforcing static separation of duty requirements in workflow environments
The increasing reliance on information technology to support business processes has emphasised the need for information security mechanisms. This, however, has resulted in an ever...
Stephen Perelson, Reinhardt A. Botha
IJCAI
2003
14 years 4 days ago
Use of Off-line Dynamic Programming for Efficient Image Interpretation
An interpretation system finds the likely mappings from portions of an image to real-world objects. An interpretation policy specifies when to apply which imaging operator, to whi...
Ramana Isukapalli, Russell Greiner
CORR
2002
Springer
105views Education» more  CORR 2002»
13 years 10 months ago
Effectiveness of Preference Elicitation in Combinatorial Auctions
Combinatorial auctions where agents can bid on bundles of items are desirable because they allow the agents to express complementarity and substitutability between the items. Howe...
Benoît Hudson, Tuomas Sandholm