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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 13 Sep 2018

    A trend that's incredibly misleading and frankly braindead: comparing the number of neurons in animals (C. elegans, honeybee, marmoset...) with the number of "neurons" in an ANN (which is the sum of the dimensionalities of the intermediate spaces you use for affine projections)

    5:43 PM - 13 Sep 2018
    • 69 Retweets
    • 307 Likes
    • AI Now simple complex Lie algebra Jeff Yang Shahram Tristan Nguyen Arunkumar Venkataramanan Jack McKeown Lukas Friedrichsen zelig - زيليغ
    12 replies 69 retweets 307 likes
      1. François Chollet‏Verified account @fchollet 13 Sep 2018

        It's a bit like comparing the number of atoms in a glass of mercury with the total number of cells in the grapes that went into making your glass of wine It makes no sense whatsoever

        10 replies 13 retweets 129 likes
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      2. Guillaume Verdon‏ @quantumVerd 13 Sep 2018
        Replying to @fchollet

        What is the estimated overhead for a Feedforward RNN to emulate a real biological neuron's evolution in time?

        1 reply 0 retweets 3 likes
      3. François Chollet‏Verified account @fchollet 13 Sep 2018
        Replying to @quantumVerd

        This would only be relevant if feedforward RNNs were actually used to emulate biological neurons. Otherwise the only common ground is that you have large natural integers on both sides

        1 reply 1 retweet 29 likes
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      2. François Chollet‏Verified account @fchollet 13 Sep 2018
        Replying to @TheMichaelBurge

        I struggle to add & multiply numbers, my own brain is definitely under 1 flops

        2 replies 4 retweets 62 likes
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      2. Luke‏ @LukeB42 14 Sep 2018
        Replying to @fchollet

        This thinking is also in the Deep Learning book, which goes from explaining ANN units as approximations of biological neurons to how humans have roughly 80bn of those.. Trend may increase as more students open their eyes to the field through studying that book.

        1 reply 0 retweets 1 like
      3. ᒍ-ᑭ ᑭᗩᖇKKᗩᖇI‏ @jparkkar 15 Sep 2018
        Replying to @LukeB42 @fchollet

        Goodfellow deals quite a lot with brain comparison in the introduction section of the book. For example he says: ”one should not view deep learning as an attempt to simulate the brain.” and ”We know that actual neurons compute very different functions than modern ReLUs” (pg. 16).

        1 reply 0 retweets 6 likes
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      1. Samed Güner‏ @samedguener 14 Sep 2018
        Replying to @fchollet

        So you say that comparisons made by @goodfellow_ian et al. in 'Deep Learning' Page 22/23 (https://www.deeplearningbook.org/ ) are braindead?

        0 replies 1 retweet 2 likes
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      2. Aaron Coyner‏ @aaron_coyner 17 Feb 2019
        Replying to @1337plus1 @fchollet

        Or do they see at 224x224x3?!

        0 replies 0 retweets 6 likes
      3. End of conversation

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