Fast algorithms for finding proper strategies in game trees

  • Authors:
  • Peter Bro Miltersen;Troels Bjerre Sørensen

  • Affiliations:
  • University of Aarhus, Denmark;University of Aarhus, Denmark

  • Venue:
  • Proceedings of the nineteenth annual ACM-SIAM symposium on Discrete algorithms
  • Year:
  • 2008

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Abstract

We show how to find a normal form proper equilibrium in behavior strategies of a given two-player zero-sum extensive form game with imperfect information but perfect recall. Our algorithm solves a finite sequence of linear programs and runs in polynomial time. For the case of a perfect information game, we show how to find a normal form proper equilibrium in linear time by a simple backwards induction procedure.