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CONCUR
1992
Springer
15 years 5 months ago
The Duality of TIme and Information
The states of a computing system bear information and change time, while its events bear time and change information. We develop a primitive algebraic model of this duality of tim...
Vaughan R. Pratt
137
Voted
CCS
2005
ACM
15 years 6 months ago
PeerAccess: a logic for distributed authorization
This paper introduces the PeerAccess framework for reasoning about authorization in open distributed systems, and shows how a parameterization of the framework can be used to reas...
Marianne Winslett, Charles C. Zhang, Piero A. Bona...
97
Voted
IJCAI
2007
15 years 2 months ago
A Logical Framework for Modularity of Ontologies
Modularity is a key requirement for collaborative ontology engineering and for distributed ontology reuse on the Web. Modern ontology languages, such as OWL, are logic-based, and ...
Bernardo Cuenca Grau, Ian Horrocks, Yevgeny Kazako...
88
Voted
LICS
1989
IEEE
15 years 4 months ago
Negation As Refutation
A refutation mechanism is introduced into logic programming, dual to the usual proof mechanism; then negation is treated via refutation. A four-valued logic is appropriate for the...
Melvin Fitting
112
Voted
AML
2005
76views more  AML 2005»
15 years 23 days ago
Perfect and bipartite IMTL-algebras and disconnected rotations of prelinear semihoops
IMTL logic was introduced in [12] as a generalization of the infinitely-valued logic of Lukasiewicz, and in [11] it was proved to be the logic of left-continuous t-norms with an i...
Carles Noguera, Francesc Esteva, Joan Gispert