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No limit: AI poker bot is first to beat professionals at multiplayer game

nature.com

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Re: No limit: AI poker bot is first to beat professionals at multiplayer game

#32
This is fascinating stuff. So do I understand this right, Liberatus worked using computing the Nash equilibrium, while the new multiplayer version works using self-play like AlphaGo Zero? Did you run the multiplayer version against the two-player version? If yes, how did it go? Could you recommend a series of books / papers that can take me from zero to being able to reprogram this (I know programming and mathematics, but not much statistics)? And how much computing resources / time did it take to train your bot?

Re: No limit: AI poker bot is first to beat professionals at multiplayer game

#33
post #21

Earlier quoted context omitted.

Are any papers available yet? Is the bot going for game-theory-optimal play, or trying to exploit weaknesses in other players?

The paper is here: https://science.sciencemag.org/content/early/2019/07/10/scie... It's going for game-theory-optimal play. It doesn't adapt to its opponents' observed weaknesses. But I think it's cool to show that you don't need to adapt to opponent weaknesses to win at poker at the highest levels. You just need to not have any weaknesses yourself.

Yeah that is a really interesting insight. I presume that also makes optimization much simpler. The rules are fixed. Opponents are not.

Re: No limit: AI poker bot is first to beat professionals at multiplayer game

#35

I'm one of the authors of the bot, AMA

Very impressive. If my understanding of how the AI works is correct, it is using a pre-computed strategy developed by playing trillions of hands, but it is not dynamically updating that during game play, nor building any kind of profiles of opponents. I wonder if by playing against it many times, human opponents could discern any tendencies they could exploit. Especially if the pre-computed strategy remains static.

Re: No limit: AI poker bot is first to beat professionals at multiplayer game

#36
post #29

I'm one of the authors of the bot, AMA

What's the name of the bot? Please say its Poker McPokerface

This is literally in the second sentence of the article

>A superhuman poker-playing bot called Pluribus has beaten top human professionals at six-player no-limit Texas hold’em poker...

Re: No limit: AI poker bot is first to beat professionals at multiplayer game

#37

Would you say it would be hard to expand this to tables with 9 players?

No, it wouldn't be hard. We chose six players because it's the most common/popular form of poker.

Also, as you add more players it becomes harder and harder to evaluate because the bot's involved in fewer hands, we need to have more pros at the table, and we need to coordinate more schedules. Six was logistically pretty tough already.

Re: No limit: AI poker bot is first to beat professionals at multiplayer game

#38
post #21

Earlier quoted context omitted.

Are any papers available yet? Is the bot going for game-theory-optimal play, or trying to exploit weaknesses in other players?

The paper is here: https://science.sciencemag.org/content/early/2019/07/10/scie... It's going for game-theory-optimal play. It doesn't adapt to its opponents' observed weaknesses. But I think it's cool to show that you don't need to adapt to opponent weaknesses to win at poker at the highest levels. You just need to not have any weaknesses yourself.

> you don't need to adapt to opponent weaknesses to win at poker at the highest levels

that may be true for limit poker, but in a no-limit tournament the best this bot could do is not lose. as the pressure increases with the blinds and the players are forced to bluff and call bluffs how does this bot avoid folding itself to death from a run of bad cards?

I could see this bot doing well at cashing but I don't see how it could consistently place 1st the way the top human players do.

Re: No limit: AI poker bot is first to beat professionals at multiplayer game

#39
post #36
post #29

Earlier quoted context omitted.

What's the name of the bot? Please say its Poker McPokerface

This is literally in the second sentence of the article >A superhuman poker-playing bot called Pluribus has beaten top human professionals at six-player no-limit Texas hold’em poker...

It was a joke.
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