Results 91 to 100 of about 448,512 (202)

Equality-friendly well-founded semantics and applications to description logics [PDF]

open access: yes, 2012
We tackle the problem of defining a well-founded semantics (WFS) for Datalog rules with existentially quantified variables in their heads and nega- tions in their bodies. In particular, we provide a WFS for the recent Datalog± family of ontology languages,
Lukasiewicz, Thomas   +7 more
core   +1 more source

Seasonal Reversal of Polarity Dominance in High‐Current Cloud‐to‐Ground Return Strokes Over East Asian Midlatitudes

open access: yesGeophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Extreme positive cloud‐to‐ground lightning over East Asian midlatitudes exhibits a spring–autumn double maximum hidden by the familiar winter climatology. Using 1,838,538 return strokes with absolute peak currents at least 200 kA during 2006–2024, we resolve its annual cycle by month and latitude.
Nengxing Guo   +7 more
wiley   +1 more source

Is Nonmonotonic Reasoning Always Harder?

open access: yes, 2007
. Although it has been shown that the worst-case complexity of the usual reasoning tasks in the context of nonmonotonic reasoning is presumably harder than the worst-case complexity of the relevant decision problems in classical logic, there are cases ...
Hans Tompits, Uwe Egly
core  

Abductive Reasoning with Filtered Circumscription

open access: yes, 2009
For logical artificial intelligence to be truly useful,its methods must scale to problems of realistic size.An interruptible algorithm enables a logical agentto act in a timely manner to the best of its knowledge,given its reasoning so far.
Kvarnström, Jonas,   +2 more
core  

Nonmonotonic Reasoning in Florid

open access: yes, 1997
The advantages of Florid as a deductive object--oriented database system are the rich object--oriented modeling facilities of its language Flogic. The focus of this paper is on Florid's multiple inheritance mechanism which turns out to be a useful ...
Paul-th. Kandzia
core   +1 more source

Nonmonotonic Reasoning as SAT Search

open access: yes, 1997
In this paper we show that there is a direct correspondence between prioritized propositional nonmonotonic reasoning and SAT search. This correspondence leads to two results. First, we can reason efficiently using a SAT oracle.
Eyal Amir
core  

Influencing nonmonotonic reasoning by modifier strength manipulation

open access: yes, 2004
Despite the current belief that much common sense reasoning is nonmonotonic in nature, research indicates that only a limited percentage of people are good at nonmonotonic reasoning.
Horsten, Leon   +2 more
core   +1 more source

Computational issues of nonmonotonic reasoning

open access: yes, 1993
VitaMajor subject: Computer ScienceFrom the earliest days of the modern computer age, humankind has dreamed of machines that use "common sense" to reason about the world.
Sanders, Leslie Kent
core  

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