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» On the Expressibility of Stable Logic Programming
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PADL
2009
Springer
14 years 8 months ago
Layered Models Top-Down Querying of Normal Logic Programs
Abstract. For practical applications, the use of top-down query-driven proofprocedures is essential for an efficient use and computation of answers using Logic Programs as knowledg...
Alexandre Miguel Pinto, Luís Moniz Pereira
ICLP
2010
Springer
14 years 6 hour ago
Tight Semantics for Logic Programs
We define the Tight Semantics (TS), a new semantics for all NLPs complying with the requirements of: 2-valued semantics; preserving the models of SM; guarantee of model existence...
Luís Moniz Pereira, Alexandre Miguel Pinto
ICRA
1998
IEEE
87views Robotics» more  ICRA 1998»
14 years 11 days ago
Hybrid Control as a Method for Robot Motion Programming
This paper presents a class of fundamental control policies suitable for use in a novel method for designing and specifying the dynamic motion of robotic systems. Through recourse...
Alfred A. Rizzi
POPL
2007
ACM
14 years 8 months ago
Context logic as modal logic: completeness and parametric inexpressivity
Separation Logic, Ambient Logic and Context Logic are based on a similar style of reasoning about structured data. They each consist of a structural (separating) composition for r...
Cristiano Calcagno, Philippa Gardner, Uri Zarfaty
AUSAI
2004
Springer
14 years 1 months ago
A Logic Based Approach for Dynamic Access Control
The PolicyUpdater1 system is a fully-implemented access control system that provides policy evaluations as well as dynamic policy updates. These functions are achieved by the use o...
Vino Fernando Crescini, Yan Zhang