AI After Dark: Computers Playing Poker The game of poker presents a serious challenge for artificial intelligence. The game is essentially about dealing with many forms of uncertainty: unobservable opponent cards, undetermined future cards, and unknown opponent strategies. Coping with these uncertainties is critical to playing at a high-level. In July 2008, the University of Alberta's poker playing program, Polaris, became the first to defeat top professional players at any variant of poker in a meaningful competition. In this talk, I'll tell the story of this match interleaved with the science that enabled Polaris's accomplishment. Short Bio: Michael Bowling is an associate professor at the University of Alberta. He received his Ph.D. in 2003 from Carnegie Mellon University in the area of artificial intelligence. His research focuses on machine learning, game theory, and robotics, and he is particularly fascinated by the problem of how computers can learn to play games through experience.