Contents
Is AlphaZero a neural network?
AlphaZero, by contrast, has only two parts: a neural network and an algorithm called Monte Carlo Tree Search.
Is AlphaZero a policy?
AlphaZero uses game outcomes of self-play as training targets. Therefore, these self-play game outcomes are only accurate value targets if the final agent, after training has ended, incorporates non-greedy exploration as well—AlphaZero behaves like an “on-policy” reinforcement learning algorithm (akin to SARSA).
Is Stockfish better than AlphaZero?
AlphaZero also bested Stockfish in a series of time-odds matches, soundly beating the traditional engine even at time odds of 10 to one. In additional matches, the new AlphaZero beat the “latest development version” of Stockfish, with virtually identical results as the match vs Stockfish 8, according to DeepMind.
What kind of dataset does AlphaZero use?
Every single one of them (including the original AlphaGo) uses ridiculously large precomputed tablebases of moves, professional datasets of “well-played games”, and carefully crafted heuristic functions with tons of hacky edge-cases.
Why are there so many moves in AlphaZero?
There are about 150-250 moves on average playable from a given game state. The reason for the slow progress of DFS is that when estimating the value of a given state in the search, both players must play optimally, choosing the move that gives them the best value, requiring complex recursion.
Can a AlphaZero algorithm be used for a game?
The AlphaZero need the game with perfect information (the game state is fully known to both players) and deterministic. Since this game has both of them, AlphaZero algorithm can be used to this game. In this article, we will simplify the architecture used on the paper.
How did DeepMind come up with the AlphaZero algorithm?
Demis Hassabis and his team at DeepMind believed otherwise. And they spent three years painstaking years trying to prove this belief; collecting Go data from expert databases, tuning deep neural network architectures, and developing hybrid strategies honed against people as well as machines.