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Its only alien because for decades people sculpted chess to look like accounting: AlphaZero doesn't waste time evaluating advantage in centipawns for each posit
by FrozenVoid 9y ago
Its only alien because for decades people sculpted chess to look like accounting:
AlphaZero doesn't waste time evaluating advantage in centipawns for each position(which is unreliable long-term), because it has more general evaluation function that is not as dependent on search algorithm as alpha-beta. That evaluation function is just hidden behind the neural network weights and is probably much faster than AlphaZero itself(a generic network trainer): essentially behind it is a series of rules and heuristics that would translate to fast classical algorithm.
- maxander 9y agoYou could argue that behind the brain of a chess master is also a “series of rules and heuristics”, but as this series may be infinitely long and isn’t feasibly determinable it’s difficult to say in what sense that’s actually true. Further, it’s likdly that the series of mostly-linear transforms in AlphaZero (or, the series of neurochemical transforms in a chessmaster’s brain) is the only form in which these rules would be efficiently computable. One way of looking at the difference between AlphaZero and traditional game AI is that the former uses irreducibly conplex heuristics (as far as we know,) just as we think brains are capable of.