A logic-based calculus of events
New Generation Computing
A method for the development of legal knowledge systems
Proceedings of the 6th international conference on Artificial intelligence and law
Time and norms: a formalisation in the event-calculus
ICAIL '99 Proceedings of the 7th international conference on Artificial intelligence and law
A Logic Programming Framework for Modeling Temporal Objects
IEEE Transactions on Knowledge and Data Engineering
Norm Modifications in Defeasible Logic
Proceedings of the 2005 conference on Legal Knowledge and Information Systems: JURIX 2005: The Eighteenth Annual Conference
Managing multi-jurisdictional requirements in the cloud: towards a computational legal landscape
Proceedings of the 3rd ACM workshop on Cloud computing security workshop
Regulatory requirements traceability and analysis using semi-formal specifications
REFSQ'13 Proceedings of the 19th international conference on Requirements Engineering: Foundation for Software Quality
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Legal provisions are considered as interrelated fragments of a text with some structural relations which hold between them. Some provisions are treated as meta-provisions, in case they are used to enact, repeal or amend the substantial provisions. The meaning of a meta-provision is described by meta-norms. Every meta-norm is conditioned by a certain event, and it describes the action which should be executed in order to obtain the current properties of the provision, such as its current text content or the current structural relations holding between the provisions. The presented model of the legal provisions dynamics is based on the event calculus, which is used to represent how the provision properties change in time. The model can be easily implemented in Prolog.