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Playing Atari with Deep Reinforcement Learning [pdf] (arxiv.org)
37 points by bradneuberg on Oct 20, 2014 | hide | past | pdf | 9 comments on HN

In plain words: A neural network watches the raw screen pixels of Atari games and learns which buttons to press by predicting future score, with no game-specific tweaks. It beat every earlier approach on most games and even topped a human expert on three.

Abstract · Playing Atari with Deep Reinforcement Learning

We present the first deep learning model to successfully learn control policies directly from high-dimensional sensory input using reinforcement learning. The model is a convolutional neural network, trained with a variant of Q-learning, whose input is raw pixels and whose output is a value function estimating future rewards. We apply our method to seven Atari 2600 games from the Arcade Learning Environment, with no adjustment of the architecture or learning algorithm. We find that it outperforms all previous approaches on six of the games and surpasses a human expert on three of them.

Volodymyr Mnih, Koray Kavukcuoglu, David Silver, Alex Graves, Ioannis Antonoglou, Daan Wierstra, Martin Riedmiller
arXiv:1312.5602 · cs.LG · submitted Dec 19, 2013
abstract · pdf · html · NIPS Deep Learning Workshop 2013

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Also discussed: Jan 2015 (21 points, 2 comments) · Jan 2014 (5 points, 0 comments) · Jan 2014 (3 points, 1 comment)

Here's a video showing the system described in the paper playing various Atari games: https://www.youtube.com/watch?v=EfGD2qveGdQ
It's incredible that it determined optimal ways to win
Yes I wonder what the criteria were - what defines "winning" in each game..
High score. All in the paper.
Here's deep Q-learning implemented in a javascript demo: http://cs.stanford.edu/people/karpathy/convnetjs/demo/rldemo...
A note -- if you're linking to arXiv, it's better to link to the abstract (http://arxiv.org/abs/1312.5602) rather than directly to the PDF. From the abstract, one can easily click through to the PDF; not so the reverse. And the abstract allows one to do things like see different versions of the paper, search for other things by the same authors, etc.
Google bought these guys out, didn't they?
Greetings, Professor Falken!