2015-02-24.log

--- Log opened Tue Feb 24 00:00:03 2015
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JayDugger...06:16
kanzureyeah...06:19
chris_99kanzure, seen this http://en.wikipedia.org/wiki/The_Typing_of_the_Dead06:23
kanzureha.06:29
justanotheruserkanzure: does kragen come around here anymore06:44
kanzureapparently not06:45
kanzurehe's around in #swhack06:45
kanzurehere is a good interview about current global economics and stuff https://www.youtube.com/watch?v=mEGzfxHcbMA06:45
kanzurehigh recommend06:45
justanotheruserwhat06:45
justanotheruserSwhack! We know. Like penises.06:45
kanzuretheir topic changes06:46
justanotheruserkanzure: why was I told that this was a private channel upon entering?06:47
kanzurei have no idea06:47
justanotheruseris it a super seecrit club06:48
kanzureno06:48
justanotheruserthis channel is weird06:52
kanzureyeah.... when i need help identifying a unicode character, they are the people to ask.06:54
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kanzure"As a Fermi explanation black holes are essentially identical to quiet M-brains. It requires strong cultural convergence, plus that the value of communicating with an exterior spacetime always becomes less than the value of computation, plus that one can do a non-neglible amount of computation on the inside."07:26
kanzure"Seth Lloyd's ultimate laptop paper analysed computing right at the Bekenstein edge; that would likely be pretty visible since it runs "hot". http://arxiv.org/abs/quant-ph/9908043 Now, if you can make wormholes or more complex topologies things get real fun... but I suspect the result is a blob of smart Planck density stuff indistinguishable from Planckscale noise."07:26
kanzure"Ultimate physical limits to computation" http://arxiv.org/pdf/quant-ph/9908043v3.pdf07:27
kanzure"Closed Timelike Curves Make Quantum and Classical Computing Equivalent" http://arxiv.org/pdf/0808.2669v1.pdf07:29
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nmz787_i.title http://www.technologynetworks.com/HTS/news.aspx?ID=17515110:25
yoleauxBiomolecular Screening - The Online Scientific Community - News10:25
nmz787_i.title https://www6.slac.stanford.edu/news/2015-02-17-study-could-pave-way-painkillers-fewer-side-effects.aspx10:26
yoleauxStudy Could Pave the Way for Painkillers with Fewer Side Effects | SLAC National Accelerator Laboratory10:26
nmz787_ireal link^10:26
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kanzure.title http://arxiv.org/abs/1406.328413:26
yoleaux[1406.3284] Deep Neural Networks Rival the Representation of Primate IT Cortex for Core Visual Object Recognition13:26
kanzure"And consider intelligence: it is generally thought that the human brain is largely self-similar (the same structures can be observed throughout the cortex, repeated in layers and columns) and therefore very simple from an information-theoretic point of view. You could express what it does using very little information, or code. The closest we have to an artificial visual cortex, deep convolutional neural networks (shown to have a ...13:26
kanzure... representational power equivalent to the primate visual cortex [1]), can be implemented in just a couple hundred lines of CUDA code. Just because a system is hard to understand does not mean it has to be complicated, or that it requires a lot of code (DNA or otherwise) to implement."13:26
kanzurehmm. "equivalent representational power to primate visual cortex".13:27
kanzurewhat is a "representational power"?13:27
archelsbe careful, that opens up a real can of worms13:30
archelsthis is akin to planes not flying like birds do13:30
kanzurebut they don't..13:36
kanzurewell, most planes, anyway13:37
kanzureall the planes i can name.13:37
maakuwell lift exceeds gravity in both cases :P13:37
kanzuretrue that. and they both seem to do things in the sky.13:38
maakukanzure: but representational power is a qualitative concept for how easy it is to formalize a problem within the system13:39
kanzureis it? i don't know what the term is, really.13:39
maakumaybe a programming language analogy is best...13:40
kanzureprimate visual cortex, i know at minimum, does various visual feature recognition things.13:40
kanzureit also does other things though13:40
maakutechnically if a language is turing complete you could do any form of computation13:40
kanzureeven if it did only visual feature recognition things, i still don't know what representational power means here13:40
maakubut some languages make it 'easier' to do some things than others13:40
maakuyou could technically write anything in brainfuck. i'm not sure i'd want to though, even though brainfuck is technically more expressive than c++13:40
maakuso in most cases c++ has more representational power than brainfuck because it's easier to structure large complex programs and reason about them13:41
maakuyou can quantify this with some sort of metric over average program length or somesuch, but I'm not sure any of the methods I've seen proposed are really all that great13:43
maakuI think this paper is saying that deep neural nets are a better fit to the problem of visual object recognition than the relevant portions of actual primate brains13:44
maakuwhich may be true13:44
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maakumore interesting to me is how other kinds of thinking -- e.g. analytical problem solving -- are probably better suited by non-biological methods.13:47
maakumost of what we think of as "hard" problems are actually hard _to us_, meaning our biological wetware are simply inefficnet and representing and manipulating those problems13:47
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archelskanzure: I think it's an extension of the old notion of a 'capacity' of a neural network14:06
archelsfor example, in a Hopfield net, how many different patterns it can store14:06
archelsthe Bayesian crowd probably has a more exact definition in terms of probability distributions, but I can't find anything off the bat14:07
kanzureoh.14:08
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Mokstarpaperbot, http://www.biologicalpsychiatryjournal.com/article/S0006-3223(15)00007-4/abstract pretty pretty please16:22
Mokstarpaperbot, help16:24
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kanzurepaperbot: http://www.biologicalpsychiatryjournal.com/article/S0006-3223(15)00007-4/abstract16:27
kanzure.title16:28
yoleauxkanzure: Sorry, that command (.title) took too long to process.16:28
Mokstarahh, gotta use a colon16:29
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paperbothttp://diyhpl.us/~bryan/papers2/paperbot/41794778f2245512b1d0e43737fed3ad.txt16:56
kanzureoh there you are16:56
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Mokstarmust be busy16:57
kanzurenot sure whether i added the busywait feature17:00
paperbothttp://diyhpl.us/~bryan/papers2/paperbot/8dce97c79aeecc1839bf02257c9a7c11.txt17:00
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kanzurehmm.21:21
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nmz787mmhmm22:30
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--- Log closed Wed Feb 25 00:00:04 2015

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