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arXiv 1104.0617cs.LO
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定价时间Petri网的最优覆盖代价计算

Computing Optimal Coverability Costs in Priced Timed Petri Nets

Parosh Aziz Abdulla, Richard Mayr

摘要:

我们考虑时间Petri网,即,无界Petri网,其中每个令牌携带一个实值时钟。过渡弧标记有时间间隔,这指定了对令牌年龄的约束。我们的成本模型将每时间单位的令牌存储成本分配给位置,并将发射成本分配给转换。我们研究的成本达到一个给定的控制状态。一般来说,成本最优运行可能不存在。然而,我们表明,下确界的成本是可计算的。

英文摘要:

We consider timed Petri nets, i.e., unbounded Petri nets where each token carries a real-valued clock. Transition arcs are labeled with time intervals, which specify constraints on the ages of tokens. Our cost model assigns token storage costs per time unit to places, and firing costs to transitions. We study the cost to reach a given control-state. In general, a cost-optimal run may not exist. However, we show that the infimum of the costs is computable.

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