Title
A game approach to determinize timed automata.
Abstract
Timed automata are frequently used to model real-time systems. Their determinization is a key issue for several validation problems. However, not all timed automata can be determinized, and determinizability itself is undecidable. In this paper, we propose a game-based algorithm which, given a timed automaton, tries to produce a language-equivalent deterministic timed automaton, otherwise a deterministic over-approximation. Our method generalizes two recent contributions: the determinization procedure of  Baier et al. (Proceedings of the 36th international colloquium on automata, languages and programming (ICALP'09), 2009) and the approximation algorithm of Krichen and Tripakis (Form Methods Syst Des 34(3):238---304, 2009). Moreover, we extend it to apply to timed automata with invariants and $$\\varepsilon $$¿-transitions, and also consider other useful approximations: under-approximation, and combination of under- and over-approximations.
Year
DOI
Venue
2011
10.1007/s10703-014-0220-1
Formal Methods in System Design
Keywords
DocType
Volume
Determinization,Timed automata,Approximate determinization,Game
Conference
46
Issue
ISSN
Citations 
1
0925-9856
4
PageRank 
References 
Authors
0.48
15
4
Name
Order
Citations
PageRank
Nathalie Bertrand125017.84
Amélie Stainer2232.93
Thierry Jéron3105391.06
Moez Krichen428925.16