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CONCUR
2008
Springer

Strategy Construction for Parity Games with Imperfect Information

9 years 2 days ago
Strategy Construction for Parity Games with Imperfect Information
We consider imperfect-information parity games in which strategies rely on observations that provide imperfect information about the history of a play. To solve such games, i.e., to determine the winning regions of players and corresponding winning strategies, one can use the subset construction to build an equivalent perfect-information game. Recently, an algorithm that avoids the inefficient subset construction has been proposed. The algorithm performs a fixed-point computation in a lattice of antichains, thus maintaining a succinct representation of state sets. However, this representation does not allow to recover winning strategies. In this paper, we build on the antichain approach to develop an algorithm for constructing the winning strategies in parity games of imperfect information. We have implemented this algorithm as a prototype. To our knowledge, this is the first implementation of a procedure for solving imperfect-information parity games on graphs.
Dietmar Berwanger, Krishnendu Chatterjee, Laurent
Added 18 Oct 2010
Updated 18 Oct 2010
Type Conference
Year 2008
Where CONCUR
Authors Dietmar Berwanger, Krishnendu Chatterjee, Laurent Doyen, Thomas A. Henzinger, Sangram Raje
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