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FOSSACS
2008
Springer
13 years 9 months ago
A Modal Deconstruction of Access Control Logics
We present a translation from a logic of access control with a "says" operator to the classical modal logic S4. We prove that the translation is sound and complete. We al...
Deepak Garg, Martín Abadi
ECAI
1990
Springer
13 years 11 months ago
Probabilistic Belief Logics
Modal logics based on Kripke style semantics are the prominent formalismin AI for modeling beliefs. Kripke semantics involve a collection of possible worlds and a relation among t...
Fahiem Bacchus
IJNSEC
2008
75views more  IJNSEC 2008»
13 years 7 months ago
A Key Management Scheme for Hierarchical Access Control in Group Communication
In group communication, users often have different access rights to multiple data streams. Based on the access relation of users and data streams, users can form partially ordered...
Qiong Zhang, Yuke Wang, Jason P. Jue
JSYML
2008
84views more  JSYML 2008»
13 years 7 months ago
The modal logic of affine planes is not finitely axiomatisable
We consider a modal language for affine planes, with two sorts of formulas (for points and lines) and three modal boxes. To evaluate formulas, we regard an affine plane as a Kripke...
Ian Hodkinson, Altaf Hussain
AUSAI
2007
Springer
14 years 1 months ago
Temporal Extensions to Defeasible Logic
In this paper, we extend Defeasible Logic (a computationally-oriented non-monotonic logic) in order to deal with temporalised rules. In particular, we extend the logic to cope with...
Guido Governatori, Paolo Terenziani