Research Paper on Libratus AI Wins NIPS Best Paper Award
Tuesday, December 5, 2017 - by Byron Spice
A research paper describing a key component of Libratus, an artificial intelligence that displayed its poker prowess earlier this year, won one of three best paper awards at the Neural Information Processing Systems (NIPS 2017) conference this week in Long Beach, Calif.
Tuomas Sandholm, professor of computer science, and Noam Brown, a Ph.D. student in the Computer Science Department, will present their paper, "Safe and Nested Subgame Solving for Imperfect-Information Games," at the conference Tuesday afternoon.
Libratus bested four top professional players in Heads-Up, No-Limit Texas Hold'em during a 20-day marathon competition in January, Brains Vs. Artificial Intelligence: Upping the Ante. The AI led by a combined $1.8 million in chips after playing 120,000 hands. Libratus used the Pittsburgh Supercomputing Center's Bridges computer to compute its strategy before and during the Pittsburgh event.
The NIPS paper focuses on subgame solving, a process by which a game is decomposed into subgames that can be solved independently. Though it's not possible to solve subgames for an imperfect information game such as poker, it is possible to approximate solutions. Sandholm and Brown made subgame solving a key component of Libratus and developed new solving techniques that outperformed prior methods in theory and in practice.
In addition to the NIPS recognition, Libratus and the PSC also recently won the HPCwire Reader's Choice Award for Best Use of AI.
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