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» An interval logic for natural language semantics
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CCS
2007
ACM
15 years 6 months ago
A simple and expressive semantic framework for policy composition in access control
In defining large, complex access control policies, one would like to compose sub-policies, perhaps authored by different organizations, into a single global policy. Existing po...
Glenn Bruns, Daniel S. Dantas, Michael Huth
AML
2006
120views more  AML 2006»
14 years 11 months ago
On the infinite-valued Lukasiewicz logic that preserves degrees of truth
Lukasiewicz's infinite-valued logic is commonly defined as the set of formulas that take the value 1 under all evaluations in the Lukasiewicz algebra on the unit real interva...
Josep Maria Font, Àngel J. Gil, Antoni Torr...
PLDI
2000
ACM
15 years 4 months ago
Functional reactive programming from first principles
Functional Reactive Programming, or FRP, is a general framework for programming hybrid systems in a high-level, declarative manner. The key ideas in FRP are its notions of behavio...
Zhanyong Wan, Paul Hudak
ENTCS
2008
140views more  ENTCS 2008»
14 years 11 months ago
Higher-Order Separation Logic in Isabelle/HOLCF
We formalize higher-order separation logic for a first-order imperative language with procedures and local variables in Isabelle/HOLCF. The assertion language is modeled in such a...
Carsten Varming, Lars Birkedal
DLOG
2007
15 years 2 months ago
Modal Logic Applied to Query Answering and the Case for Variable Modalities
We present a query answering technique based on notions and results from modal Correspondence Theory. It allows us to answer a wide family of conjunctive queries by polynomial redu...
Evgeny Zolin