Relational queries computable in polynomial time
Information and Control
The expressive power of stratified logic programs
Information and Computation
Handbook of theoretical computer science (vol. B)
Equivalence of datalog queries is undecidable
Journal of Logic Programming
Second generation expert system explanation
Second generation expert systems
The art of Prolog (2nd ed.): advanced programming techniques
The art of Prolog (2nd ed.): advanced programming techniques
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SIGMOD '94 Proceedings of the 1994 ACM SIGMOD international conference on Management of data
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Theoretical Computer Science
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RBAC '97 Proceedings of the second ACM workshop on Role-based access control
Role templates for content-based access control
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Description logics of minimal knowledge and negation as failure
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A model of OASIS role-based access control and its support for active security
ACM Transactions on Information and System Security (TISSEC)
A uniform framework for regulating service access and information release on the web
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IEEE Expert: Intelligent Systems and Their Applications
A Deductive System for Non-Monotonic Reasoning
LPNMR '97 Proceedings of the 4th International Conference on Logic Programming and Nonmonotonic Reasoning
Smodels - An Implementation of the Stable Model and Well-Founded Semantics for Normal LP
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Descriptive and Computational Complexity
FCT '89 Proceedings of the International Conference on Fundamentals of Computation Theory
Reconstruction Proofs at the Assertion Level
CADE-12 Proceedings of the 12th International Conference on Automated Deduction
IJCAR '01 Proceedings of the First International Joint Conference on Automated Reasoning
WhyNot: debugging failed queries in large knowledge bases
Eighteenth national conference on Artificial intelligence
POLICY '03 Proceedings of the 4th IEEE International Workshop on Policies for Distributed Systems and Networks
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SP '02 Proceedings of the 2002 IEEE Symposium on Security and Privacy
Requirements for Policy Languages for Trust Negotiation
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The description logic handbook: theory, implementation, and applications
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The UCONABC usage control model
ACM Transactions on Information and System Security (TISSEC)
Cassandra: Distributed Access Control Policies with Tunable Expressiveness
POLICY '04 Proceedings of the Fifth IEEE International Workshop on Policies for Distributed Systems and Networks
On the decidability of containment of recursive datalog queries - preliminary report
PODS '04 Proceedings of the twenty-third ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Driving and Monitoring Provisional Trust Negotiation with Metapolicies
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CCGRID '05 Proceedings of the Fifth IEEE International Symposium on Cluster Computing and the Grid (CCGrid'05) - Volume 2 - Volume 02
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IJCAI'07 Proceedings of the 20th international joint conference on Artifical intelligence
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IJCAI'07 Proceedings of the 20th international joint conference on Artifical intelligence
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IJCAI'05 Proceedings of the 19th international joint conference on Artificial intelligence
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RR '09 Proceedings of the 3rd International Conference on Web Reasoning and Rule Systems
Theory and Practice of Logic Programming
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Web Semantics: Science, Services and Agents on the World Wide Web
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PADL'08 Proceedings of the 10th international conference on Practical aspects of declarative languages
Rule-based policy representations and reasoning
Semantic techniques for the web
SecPAL: Design and semantics of a decentralized authorization language
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Rational closure for defeasible description logics
JELIA'10 Proceedings of the 12th European conference on Logics in artificial intelligence
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ESWC'05 Proceedings of the Second European conference on The Semantic Web: research and Applications
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Logic-based policy languages are appreciated because of their clean semantics and expressiveness. Datalog has been used for a long time as a foundation of many security models and policy languages. Recently, Description Logics (DLs for short) have been adopted as policy languages, too. In this paper we carry out a comparison of Datalog and Description Logics as policy languages, based both on expressiveness analysis and on an assessment of the current maturity of the two fields, expressly related to the representation and reasoning tasks involved in policy authoring, enforcement, and management. We shall argue that Datalog-based approaches are currently more powerful and mature than those based on pure DLs, although the ongoing research on the latter might change the picture in a near future. The potential of hybrid approaches will be briefly discussed.