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michael_nielsen's profile
michael_nielsen
michael_nielsen
michael_nielsen
@michael_nielsen

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michael_nielsen

@michael_nielsen

Searching for the numinous. Co-purveyor of https://quantum.country/ 

San Francisco, CA
michaelnielsen.org
Joined July 2008

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    1. David Chapman‏ @Meaningness Oct 8
      • Report Tweet

      David Chapman Retweeted WIRED

      Easy take: calling linear algebra “quantum physics” and “artificial intelligence” is hype. Deeper: the huge influx of physicists into AI has produced an intellectual monoculture that isn’t capable of addressing key problems in the field.https://twitter.com/WIRED/status/1181437300414275584 …

      David Chapman added,

      WIREDVerified account @WIRED
      Stitch Fix is using something called eigenvector decomposition, a concept from quantum mechanics, to tease apart the overlapping “notes” in an individual’s style. Using physics, the team can better understand the complexities of the clients’ style minds. https://wired.trib.al/IvWQkYM 
      14 replies 46 retweets 329 likes
    2. michael_nielsen‏ @michael_nielsen Oct 8
      • Report Tweet
      Replying to @Meaningness

      Most of the crankiest people I know about the culture of AI are physicists-turned-AI people. I doubt that's a reason for a monoculture; seems quite the reverse, they're usually the ones saying "hey, fiddling with hyperparameters is the wrong thing to be doing..."

      1 reply 0 retweets 18 likes
    3. David Chapman‏ @Meaningness Oct 8
      • Report Tweet
      Replying to @michael_nielsen

      Yes, and "let's look at the energy surface" leads to insights that vaguely-motivated tweaking can't. (Such tweaking being an approach CS-educated folks are liable to fall into.) But it doesn't lead to the insights that understanding mechanism-domain interactions can.

      2 replies 0 retweets 8 likes
    4. michael_nielsen‏ @michael_nielsen Oct 8
      • Report Tweet
      Replying to @Meaningness

      This seems very different from the original assertion, now more like "Are ideas adapted from physics sufficient to solve the main problems of AI?" Seems the answer is "obviously not", though of course exploring ideas from many different domains seems likely a good thing.

      3 replies 0 retweets 3 likes
    5. David Chapman‏ @Meaningness Oct 8
      • Report Tweet
      Replying to @michael_nielsen

      Not sure I follow; what is the relevant difference between this formulation and what I said? I was suggesting that physicists mostly only draw on methods and analogies from physics, and (useful as those are) they aren't able to address many of the key problems in AI.

      1 reply 0 retweets 2 likes
    6. michael_nielsen‏ @michael_nielsen Oct 8
      • Report Tweet
      Replying to @Meaningness

      Oh, that's not how I interpreted your tweet at all. It read (to me) as you asserting that the monoculture in AI is due to physicists. I guess not!

      1 reply 0 retweets 2 likes
    7. David Chapman‏ @Meaningness Oct 8
      • Report Tweet
      Replying to @michael_nielsen

      Well, the monoculture is one of using methods from physics (plus numerical analysis for implementation). I'm not blaming physicists as individuals. Rather suggesting that progress in AI can only come from drawing on ideas from many fields:https://meaningness.com/metablog/artificial-intelligence-progress …

      1 reply 0 retweets 5 likes
      michael_nielsen‏ @michael_nielsen Oct 8
      • Report Tweet
      Replying to @Meaningness

      As far as I can see, ideas from physics have had only a small impact on AI. Stochastic gradient descent and backprop and ad hoc regularization are the dominant ideas today. None comes from physics.

      12:31 PM - 8 Oct 2019
      • 2 Likes
      • Raymond Finzel Tequehead
      1 reply 0 retweets 2 likes
        1. Ash Jogalekar‏ @curiouswavefn Oct 8
          • Report Tweet
          Replying to @michael_nielsen @Meaningness

          Maybe the problem is not physics but physics envy?

          0 replies 0 retweets 2 likes
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