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» The Spatial Semantic Hierarchy
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RIA
2008
73views more  RIA 2008»
13 years 7 months ago
Representing and Manipulating Situation Hierarchies using Situation Lattices
Situations, the semantic interpretations of context, provide a better basis for selecting adaptive behaviours than context itself. The definition of situations typically rests on t...
Juan Ye, Lorcan Coyle, Simon A. Dobson, Paddy Nixo...
AAAI
1998
13 years 9 months ago
Fixpoint 3-Valued Semantics for Autoepistemic Logic
The paper presents a constructive 3-valued semantics for autoepistemic logic (AEL). We introduce a derivation operator and de ne the semantics as its least xpoint. The semantics is...
Marc Denecker, V. Wiktor Marek, Miroslaw Truszczyn...
SACMAT
2006
ACM
14 years 1 months ago
Fine-grained role-based delegation in presence of the hybrid role hierarchy
Delegation of authority is an important process that needs to be captured by any access control model. In role-based access control models, delegation of authority involves delega...
James B. D. Joshi, Elisa Bertino
ICPR
2010
IEEE
13 years 7 months ago
A Statistical Learning Approach to Spatial Context Exploitation for Semantic Image Analysis
In this paper, a statistical learning approach to spatial context exploitation for semantic image analysis is presented. The proposed method constitutes an extension of the key pa...
Georgios Th. Papadopoulos, Vasileios Mezaris, Ioan...
CIKM
2008
Springer
13 years 9 months ago
Creating tag hierarchies for effective navigation in social media
In social media, such as blogs, since the content naturally evolves over time, it is hard or in many cases impossible to organize the content for effective navigation. Thus, one c...
K. Selçuk Candan, Luigi Di Caro, Maria Luis...