期刊
出版社
IJCAI-INT JOINT CONF ARTIF INTELL
关键词
-
资金
- ROBIL project
- EU
- ISF
- Lynne and William Frankel Center for Computer Science
Given a hierarchical plan (or schedule) with uncertain task times, we may need to determine the probability that a given plan will satisfy a given deadline. This problem is shown to be NP-hard for series-parallel hierarchies. We provide a polynomial-time approximation algorithm for it. Computing the expected makespan of an hierarchical plan is also shown to be NP-hard. We examine the approximation bounds empirically and demonstrate where our scheme is superior to sampling and to exact computation.
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