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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. Jeremy Howard‏ @jeremyphoward 25 May 2019
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      Interesting new "Simple Self Attention layer" that improves all tested resnet baselines on Imagenette and Imagewoof. Seems like something worth looking into further! https://github.com/sdoria/SimpleSelfAttention …pic.twitter.com/PIIy0nXHfm

      5 replies 46 retweets 227 likes
    2. Seb D‏ @sebd_d 25 May 2019
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      Replying to @jeremyphoward

      Thanks @jeremyphoward for the shout out!

      1 reply 0 retweets 0 likes
    3. Mikhail Grankin‏ @mgrankin 27 May 2019
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      Replying to @sebd_d @jeremyphoward

      I've tried to add symmetry to SelfAttention, a very minor improvement if any.https://github.com/mgrankin/SimpleSelfAttention/blob/master/Imagenette%20Simple%20Symmetric%20Self%20Attention.ipynb …

      2 replies 0 retweets 1 like
    4. Seb D‏ @sebd_d 31 May 2019
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      Replying to @mgrankin @jeremyphoward

      I updated the repo, added your symmetry hack, thank you!

      1 reply 0 retweets 1 like
    5. Mikhail Grankin‏ @mgrankin 17 Jun 2019
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      Replying to @sebd_d @jeremyphoward

      Have you seen that paper? I believe Simple Self-Attention would work even better. https://arxiv.org/pdf/1906.05909.pdf …

      2 replies 0 retweets 2 likes
    6. Seb D‏ @sebd_d 21 Jun 2019
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      Replying to @mgrankin @jeremyphoward

      @mgrankin , you might be interested in the modification I made to Simple Self-Attention (currently in the xresnet file in my repo). One small change in order of operation is making it much faster and probably less sensitive to image size.

      2 replies 0 retweets 1 like
    7. Mikhail Grankin‏ @mgrankin 13 Aug 2019
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      Replying to @sebd_d @jeremyphoward

      I've made an injection of Simple Self-Attention layer to a pretrained Resnet. It could be more practical to use it that way. It works good, although it is hard to tell is it really better than plain Resnet. https://github.com/mgrankin/SimpleSelfAttention/blob/master/pretrained.py …pic.twitter.com/KibuEamHMP

      3 replies 3 retweets 8 likes
    8. Jason Antic‏ @citnaj 13 Aug 2019
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      Replying to @mgrankin @jeremyphoward

      Have you been tracking gamma? You'll want to train until that levels off a bit. Self-attention tends to take a while to train. I'm also curious how this compares to PooledSelfAttention (in FastAI library). I've been using that lately and it's next level for me.

      2 replies 0 retweets 2 likes
    9. Mikhail Grankin‏ @mgrankin 13 Aug 2019
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      Replying to @citnaj @jeremyphoward

      Which gamma?

      1 reply 0 retweets 0 likes
      Jason Antic‏ @citnaj 13 Aug 2019
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      Replying to @mgrankin @jeremyphoward

      In the self-attention forward: o = self.gamma * o + x . i.e. the weighting of attention.

      11:21 AM - 13 Aug 2019
      • 1 Like
      • Mikhail Grankin
      2 replies 0 retweets 1 like
        1. Mikhail Grankin‏ @mgrankin 13 Aug 2019
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          Replying to @citnaj @jeremyphoward

          Thank you, it's well worth tracking, I'll check that!

          0 replies 0 retweets 1 like
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        1. Mikhail Grankin‏ @mgrankin 20 Aug 2019
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          Replying to @citnaj @jeremyphoward

          I've caught a huge bug in my code, thanks to your suggestion. Now, it really works.

          1 reply 0 retweets 3 likes
        2. Jason Antic‏ @citnaj 20 Aug 2019
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          Replying to @mgrankin @jeremyphoward

          Oh! Are you getting different results now?

          1 reply 0 retweets 2 likes
        3. Show replies

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