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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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    1. François Chollet‏Verified account @fchollet 27 Oct 2019

      There's a big difference between learning to solve problems and learning to look up existing solutions. When approaching a new problem, it's good to make a serious attempt at solving it yourself from scratch (reinventing the wheel if necessary) before looking up best practices.

      27 replies 273 retweets 1,234 likes
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    2. François Chollet‏Verified account @fchollet 27 Oct 2019

      First of all, it's practice for problem-solving. It also makes you more familiar with the crux of the problem as well as subtleties you might otherwise be missing -- you will find it much easier to understand other existing solutions after thinking about the problem for a while.

      1 reply 24 retweets 235 likes
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      François Chollet‏Verified account @fchollet 27 Oct 2019

      And crucially, approaching problems from first principles means that the act of looking up best practices later will not artificially restrict the space of thoughts you can think. Because you've already glimpsed the possibilities. You won't merely assume "this is the only way".

      10:07 AM - 27 Oct 2019
      • 30 Retweets
      • 236 Likes
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      8 replies 30 retweets 236 likes
        1. FlyingOctopus0‏ @FlyingOctopus0 27 Oct 2019
          Replying to @fchollet

          Sometimes looking up existing practices can expand your space of thoughts. Like "I didn't know this was possible".

          0 replies 0 retweets 1 like
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        1. Fadi Badine‏ @fadibadine 27 Oct 2019
          Replying to @fchollet

          That’s a fair point. But many great inventions or breakthroughs came out when the researcher knew the existing approaches but chose to think out of the box. Many of 20th century’s theoretical physics came this way as far as I know

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        1. Vinayak Tantia‏ @vinayak_tantia 27 Oct 2019
          Replying to @fchollet

          Excellent advice! I would like to add that thinking from first principles is useful at each stage of problem solving (and not just the beginning). This is especially true when one is working on a new area, and the only starting point is looking up good practices.

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        1. Shikhar Raje‏ @shikharraje 27 Oct 2019
          Replying to @fchollet

          "In the beginner’s mind there are many possibilities, but in the expert’s there are few" from Shunryu Suzuki's Zen Mind, Beginner's Mind.

          0 replies 0 retweets 1 like
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        1. dyironman‏ @dyironman 27 Oct 2019
          Replying to @fchollet

          Any recommendations on sources for learning the underlying concepts?

          0 replies 0 retweets 0 likes
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        1. Paul Westmont‏ @PaulWestmontUsa 27 Oct 2019
          Replying to @fchollet

          This is essentially the same advice that Hal Varian gives in How to Build an Economic Model in Your Spare Time. It’s good advice and reaching for the existing literature too early can later on lead to anchoring bias on a less-than-optimal solution. In engineering too.

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        1. Akash (0/12)‏ @roguesherlock 27 Oct 2019
          Replying to @fchollet

          Exactly. Whenever people say to me that’s it’s already been done, I’m like, “yes but I haven’t used my brain cells for it. I don’t have those neural pathways.”

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        1. SNS‏ @Ssandriuss 30 Oct 2019
          Replying to @fchollet

          I think that rarely happens: "This is the only way to solve it".

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