Eighth International Workshop on Petri Nets and Performance Models (PNPM '99)
An Efficient Well-Specified Check
Zaragoza, Spain
September 08-September 10
ISBN: 0-7695-0331-4
A longstanding problem with generalized stochastic Petri nets and extensions is that of what to do when more than one zero-timed event is scheduled to occur at the same time. If the order is left unspecified, it could lead to ambiguity that affects reward variables. Stochastic activity nets (SANs) [6,7] have used the well-specified condition to avoid this problem. However, the existing algorithm to perform the well-specified check is computationally complex, proportional to the number of paths through unstable markings. We provide some theoretical results that allow us to make use of a much more efficient algorithm, with complexity proportional to the number of arcs between unstable markings.
Index Terms:
Stochastic Petri nets, stochastic activity networks, Markov process, well-specified, well-defined
Citation:
Daniel D. Deavours, William H. Sanders, "An Efficient Well-Specified Check," pnpm, pp.124, Eighth International Workshop on Petri Nets and Performance Models (PNPM '99), 1999