上传者: lull0815
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上传时间: 2019-12-21 18:51:39
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文件大小: 3.84MB
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文件类型: pdf
讲述alpha zero的原文,发表在nature。
A long-standing goal of artificial intelligence is an algorithm that learns, tabula rasa, superhuman proficiency in
challenging domains. Recently, AlphaGo became the first program to defeat a world champion in the game of Go. The
tree search in AlphaGo evaluated positions and selected moves using deep neural networks. These neural networks were
trained by supervised learning from human expert moves, and by reinforcement learning from self-play. Here we introduce
an algorithm based solely on reinforcement learning, without human data, guidance or domain knowledge beyond game
rules. AlphaGo becomes its own teacher: a neural network is trained to predict AlphaGo’s own move selections and also
the winner of AlphaGo’s games. This neural network improves the strength of the tree search, resulting in higher quality
move selection and stronger self-play in the next iteration. Starting tabula rasa, our new program AlphaGo Zero achieved
superhuman performance, winning 100–0 against the previously published, champion-defeating AlphaGo.