Survey of modular ontology techniques and their applications in the biomedical domain
Integrated Computer-Aided Engineering - Selected papers from the IEEE Conference on Information Reuse and Integration (IRI), July 13-15, 2008
Semantics-aware security policy specification for the semantic web data
International Journal of Information and Computer Security
Secrecy-preserving query answering for instance checking in EL
RR'10 Proceedings of the Fourth international conference on Web reasoning and rule systems
Privacy preserving modules for ontologies
PSI'09 Proceedings of the 7th international Andrei Ershov Memorial conference on Perspectives of Systems Informatics
Justified terminological reasoning
PSI'11 Proceedings of the 8th international conference on Perspectives of System Informatics
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Many semantic web applications require selective sharing of ontologies between autonomous entities due to copyright, privacy or security concerns. In such cases, an agent might want to hide a part of its ontology while sharing the rest. However, prohibiting any use of the hidden part of the ontology in answering queries from other agents may be overly restrictive. We provide a framework for privacypreserving reasoning in which an agent can safely answer queries against its knowledge base using inferences based on both the hidden and visible part of the knowledge base, without revealing the hidden knowledge. We show an application of this framework in the widely used special case of hierarchical ontologies.