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OpenAI's blog post about "solving the Rubik's cube" and what they actually did

111 点作者 bratao超过 5 年前

11 条评论

amayne超过 5 年前
How is OpenAI misleading? The entire post on OpenAI is about the physics of the problem (different sized cubes, materials, etc.)<p>When I saw the press release I understood the demonstration was about hand dexterity and not trying to use AI to solve a Rubik’s Cube pattern. That would be overkill IMHO. You don’t need a neural net to solve it and I never thought OpenAI was trying to mislead.<p>Side note: One of the commenters on the Twitter thread referred to Marcus as the James Randi of AI in jest. I worked for Randi for several years handling the Million-Dollar Paranormal Challenge and investigating unusual claims. I can tell you a lot about misleading claims...
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minimaxir超过 5 年前
Relevant thread on &#x2F;r&#x2F;MachineLearning: <a href="https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;MachineLearning&#x2F;comments&#x2F;dkd4vz&#x2F;d_gary_marcus_tweet_on_openai_still_has_not&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;MachineLearning&#x2F;comments&#x2F;dkd4vz&#x2F;d_g...</a><p>Greg Brockman commented there:<p>&gt; We ping journalists to ask them to correct factual errors in reporting when we see them (though they may not always agree with our corrections). For example, the Washington Post article (<a href="https:&#x2F;&#x2F;www.washingtonpost.com&#x2F;technology&#x2F;2019&#x2F;10&#x2F;18&#x2F;this-robotic-hand-learned-solve-rubiks-cube-its-own-just-like-human&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.washingtonpost.com&#x2F;technology&#x2F;2019&#x2F;10&#x2F;18&#x2F;this-ro...</a>) feels misleading, so we&#x27;ve emailed them and linked them to the relevant sections in our blog post (namely, that we use Kociemba&#x27;s algorithm as you mention).
Animats超过 5 年前
If they had to instrument the cube internally, that makes the result much less interesting. And if it&#x27;s only succeeding 20% of the time, that&#x27;s not good either.<p>Robot manipulation is hard. There are lots of systems that work some of the time. Few work well enough in an uncontrolled environment to be useful. Amazon is still looking for a robot picking system, and nothing works well enough yet.
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cabalamat超过 5 年前
&gt; What was learned was object manipulation, not cube solving<p>Which is almost certainly a harder problem
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duaoebg超过 5 年前
I think the blog title use of &#x27;solving&#x27; is misleading. As OpenAI didn&#x27;t make the solving algorithm. It&#x27;s a neat but limited use of transfer learning in an environment which requires heavy instrumentation. I could tell this immediately from the photo. What I didn&#x27;t know was that the Rubix cube also had to be modified and that it had a high failure rate. While I&#x27;m sure this is state of the art in something it does seem overblown.
zestyping超过 5 年前
This tweet by Woj Zaremba is bewildering. If we all agree it&#x27;s about physics and manipulation, how do you get to claim that a failure in manipulation doesn&#x27;t matter?<p><a href="https:&#x2F;&#x2F;twitter.com&#x2F;woj_zaremba&#x2F;status&#x2F;1185799143664443392" rel="nofollow">https:&#x2F;&#x2F;twitter.com&#x2F;woj_zaremba&#x2F;status&#x2F;1185799143664443392</a><p>&gt; It’s 20% success rate to solve the most difficult configuration of Rubik’s cube. However, on average the success rate is 60%. Moreover, the failure is by dropping the cube. The hand always solves the Rubik’s cube if you put it back the cube after the drop.
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nojvek超过 5 年前
If anyone reads Gary’s new book Rebooting AI, his whole MO is that to create really good generalized intelligence current level of neural nets are too narrow.<p>And here OpenAI made a claim about solving Rubik’s cube with a robot hand. One would assume they found a generic algorithm from the headline that does Rubik solving From both physical and algorithmic perspective. In actuality OpenAI made a demo of a very specific Rubik’s cube that gave Bluetooth info about its state (not pure vision like humans do). The Rubik’s algorithm was a pre-programmed one, not something that was learnt. Only hand manipulation of that specific cube was learnt.<p>And we don’t know how general the hand manipulation was. Does it work with different sized Rubik’s cube? What about a non-bluetooth one? Can the same system also fold clothes? Assemble lego blocks into some fixture?<p>Basically OpenAI has taken a fuck ton of VC funding. So the headlines are hyperbolic when reported. Whether intentional or not, I don’t know. To the layman it’s sending the wrong message and creating unnecessary fear.<p>OpenAI, DeepMind, AAMFG need to always explicitly say how narrow their AI is when they make claims. I.e Here’s 10 things it’s good at and these are the boundaries. If you change things slightly in the following ways it will fail.
MrQuincle超过 5 年前
Solving it analytically seems to use deep nets and Monte Carlo tree search [1]. Some additional structure to deep learning and you&#x27;re done. Manipulation is the harder problem.<p>It&#x27;s like complaining that a juggler can&#x27;t count to three.<p>[1] <a href="https:&#x2F;&#x2F;arxiv.org&#x2F;abs&#x2F;1805.07470" rel="nofollow">https:&#x2F;&#x2F;arxiv.org&#x2F;abs&#x2F;1805.07470</a>
jgalt212超过 5 年前
&gt; instrumented cube as vision has not been adequately solved.<p>this speaks to Elon&#x27;s stubbornness in avoiding the use of lidar.<p><a href="https:&#x2F;&#x2F;twitter.com&#x2F;GaryMarcus&#x2F;status&#x2F;1185908530013818881" rel="nofollow">https:&#x2F;&#x2F;twitter.com&#x2F;GaryMarcus&#x2F;status&#x2F;1185908530013818881</a>
curiousgal超过 5 年前
I mean sure, what better way to present your arguments than a picture on Twitter and asking for people to zoom.<p>That is it, I&#x27;m adding a ublock filter that blocks Twitter thread posts here.
lonelappde超过 5 年前
OP violates HN guidelines about charitable interpretations and middlebrow dismissals.