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» On the Expressibility of Stable Logic Programming
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PADL
2009
Springer
16 years 7 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
15 years 10 months 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»
15 years 10 months 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
16 years 6 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
15 years 12 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