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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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    Gary Marcus‏ @GaryMarcus 1 Jun 2018
    • Report Tweet

    Gary Marcus Retweeted Tim Kindberg

    Bingo. This has been the crux of my critique for two decades.https://twitter.com/timkindberg/status/1002437369356791808 …

    Gary Marcus added,

    Tim Kindberg @timkindberg
    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
    3:23 AM - 1 Jun 2018
    • 7 Retweets
    • 30 Likes
    • Stephan Uhrenbacher Shyam Upadhyay Behnam Karami Tim Kindberg Leon Luithlen Pasquale Minervini Ben Turner Ryan Travis Sarah Porter
    4 replies 7 retweets 30 likes
      1. New conversation
      2. Tim Rocktäschel‏ @_rockt 1 Jun 2018
        • Report Tweet
        Replying to @GaryMarcus

        True, and that's why quite a few people are looking into hybrid statistical and symbolic machines. There is hope :)

        1 reply 0 retweets 8 likes
      3. Gary Marcus‏ @GaryMarcus 1 Jun 2018
        • Report Tweet
        Replying to @_rockt

        Exactly as I have been urging, repeatedly, since 1992. Glad to see it finally becoming a focus.

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. New conversation
      2. CDWard‏ @ChasDexterWard 1 Jun 2018
        • Report Tweet
        Replying to @GaryMarcus

        Apologies for the naive question, but isn't a simple perceptron like y = w x enough for this problem, where x is the order in which the input is given and w is set to 2? Isn't this a trivial function to learn, once the input x is encoded as suggested?

        1 reply 0 retweets 0 likes
      3. Gary Marcus‏ @GaryMarcus 1 Jun 2018
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        Replying to @ChasDexterWard

        I discuss at length in chapter 3 of The Algebraic Mind, and urge you to actually try to get a sense of the interplay between representation, algorithm, and generalization.

        1 reply 0 retweets 1 like
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      1. Steven Weisberg‏ @stevenmweisberg 1 Jun 2018
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        Replying to @GaryMarcus

        But if each integer is analogous to a separate but related human behavior then an ML approach telling you 2,4,6,8 are similar to 10 but not 11 is useful in discerning that there may be a rule to relate them even if it doesn't tell you what the rule is.

        0 replies 0 retweets 1 like
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      1. New conversation
      2. un1crom‏ @un1crom 1 Jun 2018
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        Replying to @GaryMarcus

        this is not telling the whole story. one has to better define A and B in terms of where that data comes from. In A what is that set? What generates it? It’s not hard to make a statistical machine that tries random generating functions to statistically match the set.

        1 reply 0 retweets 0 likes
      3. un1crom‏ @un1crom 1 Jun 2018
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        Replying to @un1crom @GaryMarcus

        And better example would be “pi”. Pi has a symbolic and a numeric/statistical nature. For its numeric (ratio of radius and circumference in Euclidean plane) concept stats machines are all we can use. For its symbolic (polar/cycle) concept all we can use is algebra.

        0 replies 0 retweets 1 like
      4. End of conversation

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