|
Published Articles >> Table of Contents >> Abstract
Proceedings of the 37th Annual Hawaii International Conference on System Sciences (HICSS'04) - Track 4
p. 40111a
A Probabilistic Extension to Ontology Language OWL
Zhongli Ding, University of Maryland at Baltimore County
Yun Peng, University of Maryland at Baltimore County
Full Article Text:
 
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/HICSS.2004.1265290
Send link to a friend
| Abstract |
|
To support uncertain ontology representation and ontology reasoning and mapping, we propose to incorporate Bayesian networks (BN), a widely used graphic model for knowledge representation under uncertainty and OWL, the de facto industry standard ontology language recommended by W3C. First, OWL is augmented to allow additional probabilistic markups, so probabilities can be attached with individual concepts and properties in an OWL ontology. Secondly, a set of translation rules is de.ned to convert this probabilistically annotated OWL ontology into the directed acyclic graph (DAG) of a BN. Finally, the BN is completed by constructing conditional probability tables (CPT) for each node in the DAG. Our probabilistic extension to OWL is consistent with OWL semantics, and the translated BN is associated with a joint probability distribution over the application domain. General Bayesian network inference procedures (e.g., belief propagation or junction tree) can be used to compute P(C\e): the degree of the overlap or inclusion between a concept C and a concept represented by a description e. We also provide a similarity measure that can be used to find the most similar concept that a given description belongs to.
|
 Additional Information
|
Citation:
Zhongli Ding, Yun Peng,
"A Probabilistic Extension to Ontology Language OWL,"
hicss,
p. 40111a,
Proceedings of the 37th Annual Hawaii International Conference on System Sciences (HICSS'04) - Track 4,
2004
|
|
