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michael_nielsen's profile
michael_nielsen
michael_nielsen
michael_nielsen
@michael_nielsen

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michael_nielsen

@michael_nielsen

Searching for the numinous. Co-purveyor of https://quantum.country/ 

San Francisco, CA
michaelnielsen.org
Joined July 2008

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    1. Leonid Boytsov‏ @srchvrs 23 Sep 2018
      • Report Tweet
      Replying to @dennybritz @deliprao

      Good question if Adam works consistently better than SGD (or SGD with momentum).

      1 reply 0 retweets 0 likes
    2. Denny Britz‏ @dennybritz 23 Sep 2018
      • Report Tweet
      Replying to @srchvrs @deliprao

      At least I don’t need to tune Adam, but you need to tune SGD + momentum, right?

      1 reply 0 retweets 3 likes
    3. Leonid Boytsov‏ @srchvrs 23 Sep 2018
      • Report Tweet
      Replying to @dennybritz @deliprao

      Well, as FastAI recently showed, you do. Also, pure SGD seems to work better than people think. Adam seems to be good for experimentation (very fast convergence), but does it generalize as well as SGD? I have some doubts.

      2 replies 0 retweets 9 likes
    4. Delip Rao‏ @deliprao 23 Sep 2018
      • Report Tweet
      Replying to @srchvrs @dennybritz

      Well, nothing generalizes well as a *carefully* tuned SGD.

      2 replies 0 retweets 5 likes
    5. Jeremy Howard‏ @jeremyphoward 23 Sep 2018
      • Report Tweet
      Replying to @deliprao @srchvrs @dennybritz

      That's not generally true any more

      2 replies 0 retweets 0 likes
    6. Delip Rao‏ @deliprao 23 Sep 2018
      • Report Tweet
      Replying to @jeremyphoward @srchvrs @dennybritz

      link? SGD has capacity to discover optimal parameters while other variants of SGD we trade off some of that capacity for convenience.

      2 replies 0 retweets 6 likes
    7. Jeremy Howard‏ @jeremyphoward 23 Sep 2018
      • Report Tweet
      Replying to @deliprao @srchvrs @dennybritz

      See the experiments i linked to earlier . Since it isn't a PDF no one seems to bother reading it or citing it, but it's the most complete review I know of http://www.fast.ai/2018/07/02/adam-weight-decay/ …

      6 replies 13 retweets 112 likes
    8. michael_nielsen‏ @michael_nielsen 25 Sep 2018
      • Report Tweet
      Replying to @jeremyphoward @deliprao and

      People are happy to cite non-pdf. But cueing them helps, egpic.twitter.com/W6yLvJOFvO

      1 reply 0 retweets 15 likes
    9. michael_nielsen‏ @michael_nielsen 25 Sep 2018
      • Report Tweet
      Replying to @michael_nielsen @jeremyphoward and

      And: (Note: DOIs seem to be helpful, but I didn't get one for my book. This means it's not indexed in some places, but mostly doesn't seem to have hurt. http://Distill.pub  gets them for everything, though.)pic.twitter.com/hmPP0kSQkU

      1 reply 0 retweets 1 like
    10. michael_nielsen‏ @michael_nielsen 25 Sep 2018
      • Report Tweet
      Replying to @michael_nielsen @jeremyphoward and

      Also inclined to believe, as Ian says, that if you expect to get credit in accord with standard norms, it helps to participate yourself in those norms, eg:pic.twitter.com/ScfESB2I1b

      3 replies 0 retweets 5 likes
      michael_nielsen‏ @michael_nielsen 25 Sep 2018
      • Report Tweet
      Replying to @michael_nielsen @jeremyphoward and

      It's frustrating how opaque academic norms are to outsiders - it's not like there's a manual of this stuff. And I'm sure I violate some ML community norms, as an outsider to that community. But I'd guess those norms are the obstacle here, not some animosity toward pdf or fastai

      5:30 PM - 25 Sep 2018
      • 9 Likes
      • Deping Zhang Andrey Kurenkov 🤖 Tequehead Adam Golinski Hernan Moraldo k8 helena sarin Avi Bryant Delip Rao
      1 reply 0 retweets 9 likes
        1. New conversation
        2. helena sarin‏ @glagolista 25 Sep 2018
          • Report Tweet
          Replying to @michael_nielsen @jeremyphoward and

          it's indeed frustrating - and tbh when researching the subject first thing i go to is arxiv... too many blogs are out there so some form of curation is key - by the way of recommendation or from folks i know from http://fast.ai  or kaggle etc

          1 reply 0 retweets 2 likes
        3. Denny Britz‏ @dennybritz 25 Sep 2018
          • Report Tweet
          Replying to @glagolista @michael_nielsen and

          It does make sense to some extent. There’s no barrier to writing blog posts, resulting in a lot of noise. OTOH, only people who are convinced their contributions are novel and worth the effort will jump through the hoops of putting it on arXiv. So it’s easier to trust the latter

          2 replies 0 retweets 5 likes
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