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» Ontological Framework for Approximation
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128
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CORR
2007
Springer
79views Education» more  CORR 2007»
15 years 4 months ago
Ontology and Formal Semantics - Integration Overdue
but other abstract objects as well (e.g., states, processes, properties, activities, attributes, etc.) It will be demonstrated here that in such a framework, a number of challenges...
Walid S. Saba
118
Voted
AI
2005
Springer
15 years 4 months ago
First order LUB approximations: characterization and algorithms
One of the major approaches to approximation of logical theories is the upper and lower bounds approach introduced in (Selman and Kautz, 1991, 1996). In this paper, we address the...
Alvaro del Val
139
Voted
SACMAT
2009
ACM
15 years 11 months ago
Supporting RBAC with XACML+OWL
XACML does not natively support RBAC and even the specialized XACML profiles are not able to support many relevant constraints such as static and dynamic separation of duty. Exte...
Rodolfo Ferrini, Elisa Bertino
OWLED
2007
15 years 6 months ago
An Extension of DIG 2.0 for Handling Bulk Data
The research community has noted the need to retrieve the instance level of an ontology from bulk data stored in external data sources (e.g., a relational database), in order to de...
Diego Calvanese, Mariano Rodriguez-Muro
ICIP
2007
IEEE
16 years 6 months ago
Total Variation Image Restoration and Parameter Estimation using Variational Posterior Distribution Approximation
In this paper we propose novel algorithms for total variation (TV) based image restoration and parameter estimation utilizing variational distribution approximations. By following...
S. Derin Babacan, Rafael Molina, Aggelos K. Katsag...