CYC: a large-scale investment in knowledge infrastructure
Communications of the ACM
WordNet: a lexical database for English
Communications of the ACM
Retrieval effectiveness of an ontology-based model for information selection
The VLDB Journal — The International Journal on Very Large Data Bases
An Introduction to the Web Services Policy Language (WSPL)
POLICY '04 Proceedings of the Fifth IEEE International Workshop on Policies for Distributed Systems and Networks
An Authorization Model for Geospatial Data
IEEE Transactions on Dependable and Secure Computing
XACML policy integration algorithms: not to be confused with XACML policy combination algorithms!
Proceedings of the eleventh ACM symposium on Access control models and technologies
GEO-RBAC: A spatially aware RBAC
ACM Transactions on Information and System Security (TISSEC)
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With advances of digital technology two or more organizations form a federation for a temporary purpose. It is possible that an employee of an organization needs to access resource of another organization. While languages like XACML are very good for access control of a single organization, they are not able to address interoperability issues of such federations. Lack of interoperability of access control policies does not allow someone to access remote resources. In this paper we propose an approach by augmenting with knowledge-base, Ontology that will facilitate access control policies to provide resources of remote organizations. In addition, we introduce a new effect of the rule, partial permit in our application domain (Geo-Spatial).