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AdamMarblestone's profile
Adam Marblestone
Adam Marblestone
Adam Marblestone
@AdamMarblestone

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Adam Marblestone

@AdamMarblestone

Technologist, Scientist

adammarblestone.org
Joined February 2009

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    1. Adam Marblestone‏ @AdamMarblestone 14 Dec 2019
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      10-15 yrs ago, appears ~everybody talking cortical implementation of belief prop, ~nobody talking cortical implementation of back prop: https://scholar.google.com/scholar?q=related:CP4ffwsbGlcJ:scholar.google.com/&scioq=Cortical+circuitry+implementing+graphical+models&hl=en&as_sdt=0,5 … (not saying this is bad -- both very inspirational algorithms -- just interesting)

      3 replies 2 retweets 19 likes
    2. David Pfau‏ @pfau 14 Dec 2019
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      Replying to @AdamMarblestone

      I literally spent a whole day arguing with Blake Richards about this on Twitter a few months ago.

      1 reply 0 retweets 2 likes
    3. David Pfau‏ @pfau 14 Dec 2019
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      Replying to @pfau @AdamMarblestone

      "Well, if this is what everyone is using at NIPS, it *must* be how the brain works!"

      1 reply 1 retweet 2 likes
    4. David Pfau‏ @pfau 14 Dec 2019
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      Replying to @pfau @AdamMarblestone

      Also, @xaqlab would be very sad to hear that you think no one is still trying to figure out how the brain does belief propagation.

      3 replies 0 retweets 2 likes
      Adam Marblestone‏ @AdamMarblestone 14 Dec 2019
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      Replying to @pfau @xaqlab

      That's why I had the ~ sign in front of ~everybody (and it is anyway somewhat facetious since both communities seem quite small)! And certainly a handful or two of others still working on it. But we agree there is a major shift in the overall zeitgeist...

      4:30 PM - 14 Dec 2019
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      • David Pfau
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        2. David Pfau‏ @pfau 14 Dec 2019
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          Replying to @AdamMarblestone @xaqlab

          Graphical models got cool because Microsoft Research decided to specialize in them. Deep learning got a boost from Jeff Dean creating Google Brain in 2011. Lots of these shifts in zeitgeist have to do with the funding decisions of a few big tech companies.

          1 reply 0 retweets 3 likes
        3. Adam Marblestone‏ @AdamMarblestone 14 Dec 2019
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          Replying to @pfau @xaqlab

          You could alternatively say "when someone pushes them hard enough to show that [some of them] can scale to real problems" -- which makes it seem at least somewhat more reasonable, less contingent/sociological

          1 reply 0 retweets 1 like
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