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GaryMarcus's profile
Gary Marcus
Gary Marcus
Gary Marcus
@GaryMarcus

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Gary Marcus

@GaryMarcus

CEO/Founder of http://Robust.AI ; cognitive scientist, and best-selling author. New book: http://Rebooting.AI : Building Artificial Intelligence We Can Trust

garymarcus.com
Joined December 2010

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    1. Tim Kindberg‏ @timkindberg 31 May 2018
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      The problem with #machinelearning in a nutshell, via extensional vs intensional logic: A: {2, 4, 6, 8, 10, ... X} B: {2x: x ∈ N} There is no way for a statistical, asymbolic machine to arrive at B from A, no matter how large you choose X @GaryMarcus @filippie509 #ai

      10 replies 15 retweets 65 likes
    2. Edward Grefenstette‏ @egrefen 1 Jun 2018
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      Replying to @timkindberg @GaryMarcus @filippie509

      This isn't a problem with machine learning, but rather with low bias approximators. They fit the data well and can interpolate but have no mathematical reason to extrapolate. A lot of work, including in deep learning, deals with yielding better extrapolation by introducing bias.

      3 replies 2 retweets 28 likes
    3. Edward Grefenstette‏ @egrefen 1 Jun 2018
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      Replying to @egrefen @timkindberg and

      There are many examples of this in the DL community, including work by me and colleagues on e.g. program induction https://arxiv.org/abs/1506.02516  and synthesis https://www.jair.org/index.php/jair/article/view/11172 … (aka neurosymbolic ML). Many great papers by other DL/ML peeps on these topics.

      1 reply 1 retweet 12 likes
    4. Edward Grefenstette‏ @egrefen 1 Jun 2018
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      Replying to @egrefen @timkindberg and

      Don't get me wrong: it's great that people are pointing these things out and testing the limits of DL. But it's good to form a balanced view. Things aren't as black and white as "omg neural nets can do everything" vs "omg here's one failure mode let's ditch it all" 😛

      1 reply 0 retweets 15 likes
    5. Gary Marcus‏ @GaryMarcus 1 Jun 2018
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      Replying to @egrefen @timkindberg @filippie509

      Agree w @egrefen here, too, but find that no matter how hard I advocate for hybrid models people always think I am arguing against all of ML... I think ML will play a huge role in AGI, but only w proper biases, including representations of operations over variables.

      2 replies 1 retweet 12 likes
    6. Shlomo Engelson Argamon‏ @ShlomoArgamon 1 Jun 2018
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      Replying to @GaryMarcus @egrefen and

      Properly understood, #MachineLearning is the study of the relationship of biases to what can be learned with each (and how to implement them computationally). It's bias, all the way down.

      1 reply 1 retweet 8 likes
      Gary Marcus‏ @GaryMarcus 1 Jun 2018
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      Replying to @ShlomoArgamon @egrefen and

      and yet innateness is a dirty word in ML. amazing.

      5:25 AM - 1 Jun 2018
      • 1 Retweet
      • 2 Likes
      • Patrick Ryan AKA Make Neanderthals Great Again Shlomo Engelson Argamon 𝐀𝐧𝐝𝐫𝐞𝐰 𝐖𝐞𝐭𝐳𝐞𝐥
      1 reply 1 retweet 2 likes
        1. New conversation
        2. Thomas G. Dietterich‏ @tdietterich 1 Jun 2018
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          Replying to @gchrupala @GaryMarcus and

          Gary, are you really arguing that anything you can't get your ML algorithm to do, you can just build in and declare it to be "innate". It is totally ad hoc science to rely on innateness to solve your machine learning problems.

          5 replies 0 retweets 2 likes
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        2. Shlomo Engelson Argamon‏ @ShlomoArgamon 1 Jun 2018
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          Replying to @GaryMarcus @egrefen and

          Indeed. All these folks need to internalize the old story: In the days when Sussman was a novice, Minsky once came to him as he sat hacking at the PDP-6. “What are you doing?”, asked Minsky. “I am training a randomly wired neural net to play Tic-Tac-Toe” Sussman replied. 1/n

          1 reply 3 retweets 2 likes
        3. Shlomo Engelson Argamon‏ @ShlomoArgamon 1 Jun 2018
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          Replying to @ShlomoArgamon @GaryMarcus and

          “Why is the net wired randomly?”, asked Minsky. “I do not want it to have any preconceptions of how to play”, Sussman said. Minsky then shut his eyes. “Why do you close your eyes?”, Sussman asked his teacher. “So that the room will be empty.” 2/3

          1 reply 1 retweet 2 likes
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