Facebook introduced its ReBeL algorithm, a general gaming AI bot that it says excels at games like poker. ReBeL achieved superhuman performance in heads-up no-limit Texas Hold’em, according to the company, which called it "a major step toward creating ever more general AI algorithms."
- ReBeL is the first AI to enable RL+Search, or combining reinforcement learning with search, in imperfect-information games, though it can work in all two-player zero-sum games.
- Facebook said ReBeL - which stands for Recursive Belief-based Learning - uses "far less domain knowledge" than previous poker AI bots.
- The algorithm relies on knowing a game's exact rules, like in poker and Go, though it can be "problematic in real-world interactions."
- Facebook's open-sourced its implementation for the game Liar’s Dice.