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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Probabilistic Real-Time Rewrite Theories and Their Expressive Power
verfasst von : Lucian Bentea, Peter Csaba Ölveczky
Erschienen in: Formal Modeling and Analysis of Timed Systems
Verlag: Springer Berlin Heidelberg
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Unbounded data structures, advanced data types, and/or different forms of communication are often needed to model large and complex probabilistic real-time systems such as wireless sensor networks. Furthermore, it is often natural to model such systems in an object-oriented style, using subclass inheritance and dynamic object and message creation and deletion. To support the above features, we introduce probabilistic real-time rewrite theories (PRTRTs), that extend both real-time rewrite theories and probabilistic rewrite theories, as a rewriting-logic-based formalism for probabilistic real-time systems. We then show that PRTRTs can be seen as a unifying model in which a range of other models for probabilistic real-time systems—including probabilistic timed automata, stochastic automata, deterministic and stochastic Petri nets, as well as two probabilistic timed transition system models with underspecified probability distributions—can naturally be represented.