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    The Research archive provides access to all Research articles published in past issues of Communications of the ACM.

    November 2017


    From Communications of the ACM

    Heads-Up Limit Hold'em Poker Is Solved

    Heads-Up Limit Hold'em Poker Is Solved

    This paper is an extended version of our original 2015 Science article, with additional results showing Cepheus' in-game performance against computer and human opponents.

    Michael Bowling, Neil Burch, Michael Johanson, Oskari Tammelin | November 2017

    From Communications of the ACM

    Technical Perspective: Exploring a Kingdom by Geodesic Measures

    "The Heat Method for Distance Computation," by Crane, Weischedel, and Wardetzky, shows that the gradient of the probability density function of a random walk is parallel to geodesics. 

    Marc Alexa | November 2017

    From Communications of the ACM

    The Heat Method for Distance Computation

    The Heat Method for Distance Computation

    We introduce the heat method for solving the single- or multiple-source shortest path problem on both flat and curved domains.

    Keenan Crane, Clarisse Weischedel, Max Wardetzky | November 2017

    From Communications of the ACM

    Technical Perspective: Solving Imperfect Information Games

    "Heads-Up Limit Hold'em Poker Is Solved," by Michael Bowling, et al., takes the counterfactual regret minimization method for approximating a Nash equilibrium to the next level.

    David Silver | November 2017