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fchollet's profile
François Chollet
François Chollet
François Chollet
Verified account
@fchollet

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François CholletVerified account

@fchollet

Deep learning @google. Creator of Keras. Author of 'Deep Learning with Python'. Opinions are my own.

United States
fchollet.com
Joined August 2009

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    François Chollet‏Verified account @fchollet 9 Dec 2017

    I wonder if one can find empirical evidence of a link between the Kolmogorov complexity of a task and that of its solutions. Intuitively, I would think that problems that are simple to fully specify can be solved with comparably simple algorithms.

    12:59 PM - 9 Dec 2017
    • 24 Retweets
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    18 replies 24 retweets 123 likes
      1. François Chollet‏Verified account @fchollet 9 Dec 2017

        Such a link would be especially interesting with regard to the development of "general" AI

        5 replies 2 retweets 18 likes
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      1. Senior Oops Engineer‏ @ReinH 9 Dec 2017
        Replying to @fchollet @o_guest

        You might consider the law of requisite variety.

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      1. Evan J. Zimmerman‏ @ejzim 9 Dec 2017
        Replying to @fchollet

        The more difficult it is to specify the more resources that need to be spent specifying it in a solvable form. Would make sense

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      1. François Chollet‏Verified account @fchollet 9 Dec 2017

        Kolmogorov complexity presumes nothing about runtime complexity, so I don't see the link with NP completeness

        0 replies 0 retweets 2 likes
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      2. Daniel Murfet‏ @danielmurfet 9 Dec 2017
        Replying to @fchollet

        Fermat’s last theorem

        1 reply 0 retweets 1 like
      3. François Chollet‏Verified account @fchollet 9 Dec 2017
        Replying to @danielmurfet

        A theorem is not a task. Proving it is the task. Specifying that task requires a way to check correctness and a way to define the symbols used -- i.e. a theorem proving environment, which is high KC, comparable to long proofs

        1 reply 0 retweets 2 likes
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      1. Cawnpore Charlie‏ @SudipChahal 9 Dec 2017
        Replying to @fchollet

        What about Fermat’s last theorem - a clear counter example. Riemann’s hypothesis may be another counter example

        0 replies 0 retweets 2 likes
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      2. Parametrische Kaninchen‏ @alinabi 9 Dec 2017
        Replying to @fchollet

        I must be missing something in your question. If P is a problem with a countable solution space S, and A : S -> {0, 1} is a function that verifies if x is a solution of P, then solving P is just looping over S and applying A to every element.

        1 reply 0 retweets 0 likes
      3. Parametrische Kaninchen‏ @alinabi 9 Dec 2017
        Replying to @alinabi @fchollet

        So the Kolmogorov complexity of solving P is the sum of the complexity of A and the complexity of enumerating S. If S is the natural, the complexity of enumerating S is finite, but the complexity of its elements is unbounded.

        1 reply 0 retweets 0 likes
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      1. Nicholas Guttenberg‏ @ngutten 9 Dec 2017
        Replying to @fchollet

        Wouldn't the KC of any problem with a verifiable solution be upper bounded by the KC of the checker plus KC of random search?

        0 replies 0 retweets 1 like
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