Petri Net Theory and the Modeling of Systems
Petri Net Theory and the Modeling of Systems
Place or Transition Petri Nets
Lectures on Petri Nets I: Basic Models, Advances in Petri Nets, the volumes are based on the Advanced Course on Petri Nets
Lectures on Petri Nets I: Basic Models, Advances in Petri Nets, the volumes are based on the Advanced Course on Petri Nets
Coloured Petri Nets: Modelling and Validation of Concurrent Systems
Coloured Petri Nets: Modelling and Validation of Concurrent Systems
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The complete exploration of large system states modeled with Petri net (PN) systems demonstrates state space explosion, limiting reachability analysis. The calculation of the number of states (samples) necessary to conduct a statistical hypothesis test for reachability problems of PN systems is discussed in this paper. The calculation is based on the estimation of the size of the state space. This paper presents two estimators of the size of the state-space for bounded PN systems. The estimators are improved extensions of existing ones and are based on the simple elimination of unreachable markings. The estimations will be used in the calculation of the number of necessary samples to collect in the partial exploration of the state space. The improved estimation obtained in one example presents larger benefits than with the former estimator.