Facebook's "superhuman" AI is the first to defeat six-player poker pros



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An artificial intelligence robot developed by Facebook has defeated Hold & # 39; em professionals to six players, thus marking the first AI success against human experts in a complex game involving more than two players or teams.

Although artificial intelligence has made a lot of progress, beating human players in chess and other games, poker has been more difficult because it involves hidden information and success may require such techniques than the bluff.

Pluribus, the name of the IA bot developed by Facebook in collaboration with Carnegie Mellon University, has been able to defeat top professionals in two different formats. According to Facebook's blog, if each chip was worth a dollar, Pluribus would have won about $ 5 per hand and earned about $ 1,000 an hour against the five human players.

Menlo Park, California, reports that the AI ​​robot is using a new online search algorithm that can determine its options by searching for several options. Pluribus also uses "faster automatic game" algorithms for games containing unknown information, such as poker.

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This is the interface used during the experience with Pluribus and professional players.

This is the interface used during the experience with Pluribus and professional players.
(Facebook)

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The players involved in the experiment seemed to be impressed by Pluribus.

"I was one of the first players to have tested the bot, so I was able to see his previous versions." Passed from mediocre beatable player, he competed with the best players in the world in a matter of weeks "said Chris Ferguson, Series Director of Poker Series, said in the company 's blog article on the advance. "It was also satisfying to see that many of the strategies used by the bot are things we already do at the highest level of poker, and having your strategies more or less confirmed as correct by a supercomputer is a good feeling."

Another player said that the AI ​​bot had allowed him to improve his own skills.

"When I play bot, I have the impression of choosing something new to incorporate into my game. As human beings, I think we tend to over simplify the game, which makes strategies easier to adopt and memorize, "said Jimmy Chou, another elite poker player. . "The bot does not take any of these shortcuts and has an extremely complex / balanced game tree for every decision."

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Unlike other artificial intelligence projects whose realization represents millions of dollars and can cost millions of dollars, Facebook has a lot for its calculation with Pluribus, thanks to algorithmic improvements.

"We formed the master plan strategy for Pluribus in eight days on a 64-core server and used less than 512 GB of RAM – no graphics processor was used," said the company in its blog post . "At typical cloud computing instance rates, it would cost less than $ 150 to train."

Although the social network has developed this experiment for poker, the research will contribute to the construction of a general artificial intelligence that could thrive in multi-agent spaces, with humans and other bots of IA, and will contribute to the progress of the company in this area.

More information on this new AI has been published in Science.

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