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citnaj's profile
Jason Antic
Jason Antic
Jason Antic
@citnaj

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Jason Antic

@citnaj

Obsessively pursuing the perfection of image and video colorization/restoration using deep learning. Creator of DeOldify.

Ocean Beach, San Diego
deoldify.ai
Joined January 2010

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    1. Jason Antic‏ @citnaj Jun 11
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      1/ Higher Top 1 accuracy in image classification actually isn't a great indicator that a new vision model is going to work out well in practice in an image to image task (like DeOldify). I've learned this the hard way after getting excited about a new shiny model many times!

      1 reply 5 retweets 36 likes
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    2. Jason Antic‏ @citnaj Jun 11
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      2/ EfficientNets come to mind- I just have not been seeing the benefits relative to the classification performance. But this really applies generally, even within a set of architectures that have been trained the same way (FaceBook's wsl models, BiTM, etc).

      1 reply 0 retweets 8 likes
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    3. Jason Antic‏ @citnaj Jun 11
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      3/ In those cases, you just don't really know until you actually try. You may be surprised, I can tell you that much! So don't just pick the one with the highest Top-1 accuracy in ImageNet...

      5 replies 1 retweet 11 likes
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    4. Scott H. Hawley‏ @drscotthawley Jun 11
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      Replying to @citnaj

      This. One of my most popular tweets was an offhand remark on how to eek out an extra 0.1% on ImageNet, which I regarded as useless b/c ‘interesting problems’ are not Imagenet, but the tweet *exploded* in popularity, which I found puzzling. Then I realized: they were all Kagglers

      1 reply 0 retweets 2 likes
      Jason Antic‏ @citnaj Jun 11
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      Replying to @drscotthawley

      Oh well that makes perfect sense! Do you have a favorite architecture for your interesting work?

      12:16 PM - 11 Jun 2020
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      • Scott H. Hawley
      2 replies 0 retweets 1 like
        1. Scott H. Hawley‏ @drscotthawley Jun 11
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          Replying to @citnaj

          Scott H. Hawley Retweeted Scott H. Hawley

          I wish. It’s usually trial & error, w/ different components, activations, layers, losses, etc. Just released a paper today on further results with SignalTrain architecture! https://twitter.com/drscotthawley/status/1271064318768005121?s=21 …. Which, in humilty, this paper exposes the model’s limitations.

          Scott H. Hawley added,

          Waveforms trained on specific or general datasets
          Scott H. Hawley @drscotthawley
          Super proud of my **undergrad** student Billy Mitchell, who has a new ML-audio paper out: “Exploring Quality and Generalizability for Parameterized Neural Audio Effects.“ Paper: https://arxiv.org/pdf/2006.05584.pdf …. Audio examples (best viewed on desktop): https://tinyurl.com/signaltrain-exploring …. pic.twitter.com/xdsr4OpJEN
          Show this thread
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        2. Scott H. Hawley‏ @drscotthawley Jun 11
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          Replying to @citnaj

          I will say: skip connections + 1cycle learning rate schedule = at least a factor of 10 for lowering loss / decreasing training time. :-)

          2 replies 0 retweets 1 like
        3. Jason Antic‏ @citnaj Jun 11
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          Replying to @drscotthawley

          Yes agreed on those being crucial. Generally there's so few things that seem to -actually- matter in practice. Training regime on the pretrained backbone (going beyond ImageNet 1K, namely) would be another I'd say I feel confident o being important.

          0 replies 0 retweets 1 like
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