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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. William Fedus‏ @LiamFedus 20 Jul 2018

      Two recent algorithms, World Models by @hardmaru and Schmidhuber (2018) and Curiosity by @pathak2206 et al. (2018), have approx. equal performance when a learned module (RNN and embedding in ICM, respectively) is instead left as a fixed randomly initialized module. @_brohrer_

      8 replies 72 retweets 257 likes
      Show this thread
    2. Ian Goodfellow‏ @goodfellow_ian 20 Jul 2018
      Replying to @LiamFedus @hardmaru and

      Random weights have often been a surprisingly strong baseline. Back in 2007-2011 we often saw convolutional nets with random weights getting state of the art performance on object recognition tasks like CalTech-101 and CIFAR-10

      11 replies 25 retweets 160 likes
    3. François Chollet‏Verified account @fchollet 20 Jul 2018
      Replying to @goodfellow_ian @LiamFedus and

      Feature extraction via projection on a large family of random filters. Works especially well if your weights have an orthogonal initialization (so you don't lose to much information in the process).

      3 replies 2 retweets 43 likes
    4. William Fedus‏ @LiamFedus 20 Jul 2018
      Replying to @fchollet @goodfellow_ian and

      Yes, thanks! Another friend also referred us to the Johnson-Lindenstrauss lemma in random projections. Would your expectation be that projection on a large family of random filters would work as well as a random fixed CNN, both with the same output dimension?

      1 reply 0 retweets 8 likes
      François Chollet‏Verified account @fchollet 20 Jul 2018
      Replying to @LiamFedus @goodfellow_ian and

      I'd expect the random CNN to work better. Would be an interesting experiment.

      5:02 PM - 20 Jul 2018
      • 3 Likes
      • Tequehead Guillermo Valle William Fedus
      0 replies 0 retweets 3 likes

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