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Published in:
2008 | OriginalPaper | Chapter
Synthesis of Optimal Control Policies for Some Infinite-State Transition Systems
Author : Michel Sintzoff
Published in: Mathematics of Program Construction
Publisher: Springer Berlin Heidelberg
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We develop a symbolic, logic-based technique for constructing optimal control policies in some transition systems where state spaces are large or infinite. These systems are presented as iterations of finite sets of guarded assignments which have costs. The optimality objective is to minimize the total costs of system executions reaching the set characterized by a given target predicate. Guards are predicates and control policies are expressed by tuples of guards. The optimal control policy refines the control policy of the given system. It is generated from the target predicate by an iteration based on backwards induction. This iterative procedure amounts to a variant of the symbolic algorithm generating the reachability precondition; the latter characterizes the states from which some system execution reaches the target set. The main difference is the introduction of greedy and cost-dependent iteration steps.