scholarly journals A Visual Environment for Developing Defeasible Rule Bases for the Semantic Web

2005 ◽  
pp. 172-186 ◽  
Author(s):  
Nick Bassiliades ◽  
Efstratios Kontopoulos ◽  
Grigoris Antoniou
Keyword(s):  
Semantic Web ◽  
Visual Environment ◽  
Rule Bases

Deploying defeasible logic rule bases for the semantic web

2008 ◽  
Vol 66 (1) ◽  
pp. 116-146 ◽  
Author(s):  
Efstratios Kontopoulos ◽  
Nick Bassiliades ◽  
Grigoris Antoniou
Keyword(s):  
Semantic Web ◽  
Defeasible Logic ◽  
Rule Bases ◽  
Logic Rule

VISUAL MODELING OF DEFEASIBLE LOGIC RULES WITH DR-VisMo

2008 ◽  
Vol 17 (05) ◽  
pp. 903-924 ◽  
Author(s):  
EFSTRATIOS KONTOPOULOS ◽  
NICK BASSILIADES ◽  
GRIGORIS ANTONIOU ◽  
ANNA SERIDOU
Keyword(s):  
Semantic Web ◽  
Directed Graphs ◽  
Rule Base ◽  
Full Potential ◽  
Visualization System ◽  
Defeasible Logic ◽  
Conflicting Information ◽  
Rule Bases ◽  
Available Information ◽  
Logic Rule

The standardization of the Semantic Web has reached as far as ontologies and ontology languages. However, in order for the full potential of the Semantic Web to be achieved, the ability of reasoning over the available information is also essential. Rules can assist in this affair and various logics have been proposed for the Semantic Web domain. One of them is defeasible reasoning that deals with incomplete and conflicting information. However, despite its solid mathematical notation, it may be confusing to end users. To confront this downside, we proposed a representation schema for defeasible logic rule bases, which is based on directed graphs that feature distinct node and connection types. This paper presents DR-VisMo, a defeasible logic rule base editor and visualization system that implements this representation approach. The system also features a stratification algorithm for visualizing rule bases that deals with decisions, regarding the arrangement of the various elements in the graph. DR-VisMo is implemented as part of VDR-DEVICE, an environment for modeling and deploying defeasible logic rule bases on top of RDF ontologies.

Do You Want to See the Tree? Ignore the Forest

2014 ◽  
Vol 61 (3) ◽  
pp. 205-214 ◽  
Author(s):  
Nicolas Poirel ◽  
Claire Sara Krakowski ◽  
Sabrina Sayah ◽  
Arlette Pineau ◽  
Olivier Houdé ◽  
...  
Keyword(s):  
Visual Recognition ◽  
Local Level ◽  
Local Information ◽  
Visual Environment ◽  
Global Information ◽  
Focus Attention ◽  
Global Level ◽  
Hierarchical Stimuli ◽  
Priming Paradigm ◽  
The One

The visual environment consists of global structures (e.g., a forest) made up of local parts (e.g., trees). When compound stimuli are presented (e.g., large global letters composed of arrangements of small local letters), the global unattended information slows responses to local targets. Using a negative priming paradigm, we investigated whether inhibition is required to process hierarchical stimuli when information at the local level is in conflict with the one at the global level. The results show that when local and global information is in conflict, global information must be inhibited to process local information, but that the reverse is not true. This finding has potential direct implications for brain models of visual recognition, by suggesting that when local information is conflicting with global information, inhibitory control reduces feedback activity from global information (e.g., inhibits the forest) which allows the visual system to process local information (e.g., to focus attention on a particular tree).

Semantic Web Technologies for e-Learning: Models and Implementation

Informatica ◽  
2015 ◽  
Vol 26 (2) ◽  
pp. 221-240 ◽  
Author(s):  
Valentina Dagienė ◽  
Daina Gudonienė ◽  
Renata Burbaitė
Keyword(s):  
Semantic Web ◽  
Learning Models ◽  
Semantic Web Technologies ◽  
Web Technologies ◽  
E Learning

The Study of semantic Web and WebService Security(Focus on Ontology)

2007 ◽  
Vol 8 (2) ◽  
pp. 391-403
Author(s):  
kang jang mook
Keyword(s):  
Semantic Web
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