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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 23 Feb 2018

    François Chollet Retweeted Ben Hamner

    Having access to "infinite compute" is absolutely not a necessary factor for doing good research. In more ways than one, the opposite is truehttps://twitter.com/benhamner/status/966823205842243584 …

    François Chollet added,

    Ben HamnerVerified account @benhamner
    One big takeaway from Kaggle's second kernels competition: limiting compute is an incredibly effective regularizer on model complexity https://www.kaggle.com/c/mercari-price-suggestion-challenge/discussion/50256 …
    7:57 AM - 23 Feb 2018
    • 26 Retweets
    • 175 Likes
    • dreznik@gmail.com A. Can Ozbek Sandeep Amilineni John Lusette Macron SomeOne Davy Pavel Kordík Chiheb Trabelsi
    2 replies 26 retweets 175 likes
      1. New conversation
      2. François Chollet‏Verified account @fchollet 23 Feb 2018

        In machine learning, models that generalize are those with significant constraints -- regularization, limited memorization capacity, architecture encoding abstract assumptions about the data. The purpose of models is to generalize, not to optimize

        2 replies 21 retweets 83 likes
        Show this thread
      3. François Chollet‏Verified account @fchollet 23 Feb 2018

        In research, extensive hyperparameter tuning & architecture search results in ovefitting to a task (to the distribution of a specific dataset, even with no information leaks from the test set). But the goal of research is to generalize, not to optimize. To create new knowledge.

        4 replies 21 retweets 84 likes
        Show this thread
      4. François Chollet‏Verified account @fchollet 23 Feb 2018

        The trap of compute is the temptation to substitute research for optimization

        1 reply 10 retweets 60 likes
        Show this thread
      5. End of conversation
      1. Denis Poussart‏ @Denis_Poussart 23 Feb 2018
        Replying to @fchollet

        Very true. La nécessité est la mère de l'invention. But there is also the (somewhat paradoxical) observation that doing good research is (partially) motivated toward bringing funding support for improving one's computing facilities ...

        0 replies 0 retweets 1 like
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