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» Negation as Partial Failure
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ESWS
2006
Springer
13 years 11 months ago
Rules with Contextually Scoped Negation
Knowledge representation formalisms used on the Semantic Web adhere to a strict open world assumption. Therefore, nonmonotonic reasoning techniques are often viewed with scepticism...
Axel Polleres, Cristina Feier, Andreas Harth
MEMBRANE
2007
Springer
14 years 1 months ago
Conformon-P Systems with Negative Values
Some initial results on the study of conformon-P systems with negative values are reported. One model of these conformon-P systems is proved to be computationally universal while a...
Pierluigi Frisco
PODS
1989
ACM
129views Database» more  PODS 1989»
13 years 11 months ago
The Alternating Fixpoint of Logic Programs with Negation
The alternating xpoint of a logic program with negation is de ned constructively. The underlying idea is monotonically to build up a set of negative conclusions until the least xp...
Allen Van Gelder
CL
2000
Springer
13 years 12 months ago
Proving Failure in Functional Logic Programs
How to extract negative information from programs is an important issue in logic programming. Here we address the problem for functional logic programs, from a proof-theoretic pers...
Francisco Javier López-Fraguas, Jaime S&aac...
IROS
2008
IEEE
137views Robotics» more  IROS 2008»
14 years 2 months ago
Avoiding negative depth in inverse depth bearing-only SLAM
Abstract— In this paper we consider ways to alleviate negative estimated depth for the inverse depth parameterisation of bearing-only SLAM. This problem, which can arise even if ...
Martin P. Parsley, Simon J. Julier