Title
Probabilistic ω-automata
Abstract
Probabilistic ω-automata are variants of nondeterministic automata over infinite words where all choices are resolved by probabilistic distributions. Acceptance of a run for an infinite input word can be defined using traditional acceptance criteria for ω-automata, such as Büchi, Rabin or Streett conditions. The accepted language of a probabilistic ω-automata is then defined by imposing a constraint on the probability measure of the accepting runs. In this paper, we study a series of fundamental properties of probabilistic ω-automata with three different language-semantics: (1) the probable semantics that requires positive acceptance probability, (2) the almost-sure semantics that requires acceptance with probability 1, and (3) the threshold semantics that relies on an additional parameter λ ∈ ]0,1[ that specifies a lower probability bound for the acceptance probability. We provide a comparison of probabilistic ω-automata under these three semantics and nondeterministic ω-automata concerning expressiveness and efficiency. Furthermore, we address closure properties under the Boolean operators union, intersection and complementation and algorithmic aspects, such as checking emptiness or language containment.
Year
DOI
Venue
2012
10.1145/2108242.2108243
J. ACM
Keywords
DocType
Volume
positive acceptance probability,probable semantics,lower probability,accepted language,probability measure,traditional acceptance criterion,threshold semantics,probabilistic distribution,acceptance probability,almost-sure semantics
Journal
59
Issue
Citations 
PageRank 
1
4
0.41
References 
Authors
29
3
Name
Order
Citations
PageRank
Christel Baier13053185.85
Marcus Grösser240.41
Nathalie Bertrand325017.84