Connectionists: Stephen Hanson in conversation with Geoff Hinton

[Asim Roy]

It is not a slippery slope. It already has good traction and produces great results. It’s the way forward.



Sent from my iPhone

On Jul 17, 2022, at 6:00 PM, Stephen José Hanson <jose at rubic.rutgers.edu> wrote:



Not really.

the distinction is in the details.. neural modeling involves biological constraints, learning.. OTOH, hybrid systems, as Gary and some others are promoting is more than a slippery slope.. its already off the cliff.

Someone said once to me ..if you have a perfectly good  electric car..   why would you have it push a car with a combustion engine around?"
why not improve the EV without giving up on the energy source?

S

On 7/17/22 11:10 AM, Asim Roy wrote:

“without at the same time breaking the the Gary Marcus fire alarm glass where symbolic piece parts tumble out of the closet.”

Those who are aware, Gary Marcus’ symbolic parts are already tumbling out of the closet. There are numerous efforts, even by Hinton and Bengio, that try to encode a symbolic concept using a set of neurons.
All the best,
Asim Roy
Professor, Information Systems
Arizona State University
Lifeboat Foundation Bios: Professor Asim Roy<https://urldefense.com/v3/__https://nam02.safelinks.protection.outlook.com/?url=https*3A*2F*2Furldefense.proofpoint.com*2Fv2*2Furl*3Fu*3Dhttps-3A__lifeboat.com_ex_bios.asim.roy*26d*3DDwMFaQ*26c*3DslrrB7dE8n7gBJbeO0g-IQ*26r*3DwQR1NePCSj6dOGDD0r6B5Kn1fcNaTMg7tARe7TdEDqQ*26m*3DwaSKY67JF57IZXg30ysFB_R7OG9zoQwFwxyps6FbTa1Zh5mttxRot_t4N7mn68Pj*26s*3DoDRJmXX22O8NcfqyLjyu4Ajmt8pcHWquTxYjeWahfuw*26e*3D&data=05*7C01*7Cjose*40rubic.rutgers.edu*7Cde2d6a4ba28f4bb3cd3108da68067efa*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637936675444169016*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=SjWQXp18xUGD1pBqeUOB7hIADwIDTu*2FdLXqeyXeAyvQ*3D&reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUl!!IKRxdwAv5BmarQ!cX2KY-fD__Znbt4fE_Rvu7VrteYHqfV9W1IcLPkhx7oL--09sVAQjnoRqMemLWsF4Lyfbl4IUqQYg7D54GM$>
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From: Connectionists <connectionists-bounces at mailman.srv.cs.cmu.edu><mailto:connectionists-bounces at mailman.srv.cs.cmu.edu> On Behalf Of Stephen José Hanson
Sent: Friday, July 15, 2022 4:28 AM
To: Dietterich, Thomas <tgd at oregonstate.edu><mailto:tgd at oregonstate.edu>; Danko Nikolic <danko.nikolic at gmail.com><mailto:danko.nikolic at gmail.com>; Grossberg, Stephen <steve at bu.edu><mailto:steve at bu.edu>
Cc: AIhub <aihuborg at gmail.com><mailto:aihuborg at gmail.com>; connectionists at mailman.srv.cs.cmu.edu<mailto:connectionists at mailman.srv.cs.cmu.edu>
Subject: Re: Connectionists: Stephen Hanson in conversation with Geoff Hinton


So there are a number of issues here.  In the first one, the brain obviously has a specific structure.   DL supervised modeling of classification, NOT psychological categorization-- may scale linearly with resources.. however, its clear just adding more hidden layers has diminishing returns, adding various kinds of classification structure (GANs etc) or doing unsupervised learning or reinforcement learning is not going to end up with AGI or really any sort of final AI system and certainly not biological.   Humans btw, scale as sub-linear systems.. but with hard limits.  We can only recognize about 6000 faces (and the variance is about 4k across individuals), most undergraduates can recognize 100k words again with a large variance., so despite the fact that the brain has trillions of synapses, "loading" in explicit (MTL) memory is complex and somehow localized.    Memory systems involve implicit (most DL) or explicit (almost noone), working memory is tiny--like 3 or 4+- 2 (sorry George).  Many (Bengio, Le Cun etc) are experimenting with more complex structures, but keeping the system homogeneous, no extra symbolic baggage and forcing the exercise to have to learn the configuration rather than engineer it.     In some ways, Grossberg has been out in front in all this, but with his own special and situated neural systems.  He has been consistently and persistently creating focused neural modeling, which as an art form has always been a matter of taste.   Connectionist models tend toward minimalist forms  and Steve and others follow more Baroque or perhaps Victorian forms.   What is clear is that the future is going to be blends of these forms and more complex, without at the same time breaking the the Gary Marcus fire alarm glass where symbolic piece parts tumble out of the closet.

Steve
On 7/15/22 4:01 AM, Dietterich, Thomas wrote:
Dear Danko,

In my experience, supervised classification scales linearly in the number of classes. Of course it depends to some extent on how subtle the distinctions are between the different categories. The real world is not dominated by generalized XOR problems.

--Tom

Thomas G. Dietterich, Distinguished Professor Voice: 541-737-5559
School of Electrical Engineering              FAX: 541-737-1300
  and Computer Science                        URL: eecs.oregonstate.edu/~tgd
US Mail: 1148 Kelley Engineering Center
Office: 2067 Kelley Engineering Center
Oregon State Univ., Corvallis, OR 97331-5501

From: Connectionists <connectionists-bounces at mailman.srv.cs.cmu.edu><mailto:connectionists-bounces at mailman.srv.cs.cmu.edu> On Behalf Of Danko Nikolic
Sent: Thursday, July 14, 2022 09:17
To: Grossberg, Stephen <steve at bu.edu><mailto:steve at bu.edu>
Cc: AIhub <aihuborg at gmail.com><mailto:aihuborg at gmail.com>; connectionists at mailman.srv.cs.cmu.edu<mailto:connectionists at mailman.srv.cs.cmu.edu>
Subject: Re: Connectionists: Stephen Hanson in conversation with Geoff Hinton


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Dear Steve,

Thank you very much for your message and for the greetings. I will pass them on if an occasion arises.

Regarding your question: The key problem I am trying to address and that, to the best of my knowledge, no connectionist system was able to solve so far is that of scaling the system's intelligence. For example, if the system is able to correctly recognize 100 different objects, how many additional resources are needed to double that to 200? All the empirical data show that connectionist systems scale poorly: Some of the best systems we have require 500x more resources in order to increase the intelligence by only 2x. I document this problem in the manuscript and even run some simulations to show that the worst performance is if connectionist systems need to solve a generalized XOR problem.

In contrast, the biological brain scales well. This I also quantify in the paper.

I will look at the publication that you mentioned. However, so far, I haven't seen a solution that scales well in intelligence.

My argument is that transient selection of subnetworks by the help of the mentioned proteins is how intelligence scaling is achieved in biological brains.

In short, intelligence scaling is the key problem that concerns me. I describe the intelligence scaling problem in more detail in this book that just came out a few weeks ago and that is written for practitioners in Data Scientist and AI: https://amzn.to/3IBxUpL<https://urldefense.com/v3/__https://nam02.safelinks.protection.outlook.com/?url=https*3A*2F*2Furldefense.com*2Fv3*2F__https*3A*2Fnam02.safelinks.protection.outlook.com*2F*3Furl*3Dhttps*3A*2F*2Famzn.to*2F3IBxUpL*26data*3D05*7C01*7Cjose*40rubic.rutgers.edu*7Ca8ef03a8fe344fa00a6608da663fea46*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637934721988651450*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C*26sdata*3DbzV7PLGEdjrifCKDfhW*2FbGQmwMzDB5BhZmT*2B0pjpSR8*3D*26reserved*3D0__*3BJSUlJSUlJSUlJSUlJSUlJSUlJSUlJQ!!IKRxdwAv5BmarQ!eWNFMa419s0rn6idqZUBmf68VFVZl9uSc2H0Io-F7ev3NrzV1tgINbpiuWQySh0fQrTA8dzvNgKn4aPnSlU*24&data=05*7C01*7Cjose*40rubic.rutgers.edu*7Cde2d6a4ba28f4bb3cd3108da68067efa*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637936675444169016*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=kXX*2FtllEj*2BIeGTo9cmnuKAu9SnOi1BVzkRqtM31Uewc*3D&reserved=0__;JSUlJSUlJSUlJSoqKiolJSoqKioqKioqKioqKioqKiUlKioqJSUlJSUlJSUlJSUlJSUlJSUlJSUlJQ!!IKRxdwAv5BmarQ!cX2KY-fD__Znbt4fE_Rvu7VrteYHqfV9W1IcLPkhx7oL--09sVAQjnoRqMemLWsF4Lyfbl4IUqQY22tOyXY$>

I hope that this at least partly answers where I see the problems and what I am trying to solve.

Greetings from Germany,

Danko

Dr. Danko Nikolić
www.danko-nikolic.com<https://urldefense.com/v3/__https://nam02.safelinks.protection.outlook.com/?url=https*3A*2F*2Furldefense.com*2Fv3*2F__https*3A*2Fnam02.safelinks.protection.outlook.com*2F*3Furl*3Dhttp*3A*2F*2Fwww.danko-nikolic.com*2F*26data*3D05*7C01*7Cjose*40rubic.rutgers.edu*7Ca8ef03a8fe344fa00a6608da663fea46*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637934721988651450*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C*26sdata*3D6R4bWcF*2Bf0cXrg69r6AOv2iViBdr3McaDfqXgFFEudU*3D*26reserved*3D0__*3BJSUlJSUlJSUlJSUlJSUlJSUlJSUl!!IKRxdwAv5BmarQ!eWNFMa419s0rn6idqZUBmf68VFVZl9uSc2H0Io-F7ev3NrzV1tgINbpiuWQySh0fQrTA8dzvNgKn3BVrGk0*24&data=05*7C01*7Cjose*40rubic.rutgers.edu*7Cde2d6a4ba28f4bb3cd3108da68067efa*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637936675444169016*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=s8bAHmnANiiOUG4iGMRAP4XoRp6ip6O5SF1xCrfA2Og*3D&reserved=0__;JSUlJSUlJSUlJSoqKiolJSoqKioqKioqKioqKioqKiUlKiolJSUlJSUlJSUlJSUlJSUlJSUlJQ!!IKRxdwAv5BmarQ!cX2KY-fD__Znbt4fE_Rvu7VrteYHqfV9W1IcLPkhx7oL--09sVAQjnoRqMemLWsF4Lyfbl4IUqQYv7sJHA8$>
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--- A progress usually starts with an insight ---


On Thu, Jul 14, 2022 at 3:30 PM Grossberg, Stephen <steve at bu.edu<mailto:steve at bu.edu>> wrote:
Dear Danko,

I have just read your new article and would like to comment briefly about it.

In your introductory remarks, you write:

"However, connectionism did not yet produce a satisfactory explanation of how the mental emerges from the physical. A number of open problems remains ( 5,6,7,8). As a result, the explanatory gap between the mind and the brain remains wide open."

I certainly believe that no theoretical explanation in science is ever complete. However, I also believe that "the explanatory gap between the mind and the brain" does not remain "wide open".

My Magnum Opus, that was published in 2021, makes that belief clear in its title:

Conscious Mind, Resonant Brain: How Each Brain Makes a Mind

https://www.amazon.com/Conscious-Mind-Resonant-Brain-Makes/dp/0190070552<https://urldefense.com/v3/__https://nam02.safelinks.protection.outlook.com/?url=https*3A*2F*2Furldefense.com*2Fv3*2F__https*3A*2Fnam02.safelinks.protection.outlook.com*2F*3Furl*3Dhttps*3A*2F*2Fwww.amazon.com*2FConscious-Mind-Resonant-Brain-Makes*2Fdp*2F0190070552*26data*3D05*7C01*7Cjose*40rubic.rutgers.edu*7Ca8ef03a8fe344fa00a6608da663fea46*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637934721988651450*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C*26sdata*3DtCf8x*2B5QATxgYCAfT20AX*2BVfonbifqvmDNzkYhzvI7Y*3D*26reserved*3D0__*3BJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUl!!IKRxdwAv5BmarQ!eWNFMa419s0rn6idqZUBmf68VFVZl9uSc2H0Io-F7ev3NrzV1tgINbpiuWQySh0fQrTA8dzvNgKnEKmAr9U*24&data=05*7C01*7Cjose*40rubic.rutgers.edu*7Cde2d6a4ba28f4bb3cd3108da68067efa*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637936675444169016*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=TDlP*2BS*2BDm8CDDqM5QF74FTNidYRQ7v5vMYyhUGg4m74*3D&reserved=0__;JSUlJSUlJSUlJSoqKioqKiUlKioqKioqKioqKioqKioqJSUqKiolJSUlJSUlJSUlJSUlJSUlJSUlJSUl!!IKRxdwAv5BmarQ!cX2KY-fD__Znbt4fE_Rvu7VrteYHqfV9W1IcLPkhx7oL--09sVAQjnoRqMemLWsF4Lyfbl4IUqQYTA7EYFk$>

The book provides a self-contained and non-technical exposition in a conversational tone of many principled and unifying explanations of psychological and neurobiological data.

In particular, it explains roles for the metabotropic glutamate receptors that you mention in your own work. See the text and figures around p. 521. This explanation unifies psychological, anatomical, neurophysiological, biophysical, and biochemical data about the processes under discussion.

I have a very old-fashioned view about how to understand scientific theories. I get excited by theories that explain and predict more data than previous theories.

Which of the data that I explain in my book, and support with quantitative computer simulations, can you also explain?

What data can you explain, in the same quantitative sense, that you do not think the neural models in my book can explain?

I would be delighted to discuss these issues further with you.

If you are in touch with my old friend and esteemed colleague, Wolf Singer, please send him my warm regards. I cite the superb work that he and various of his collaborators have done in many places in my book.

Best,

Steve

Stephen Grossberg
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Wang Professor of Cognitive and Neural Systems
Director, Center for Adaptive Systems
Professor Emeritus of Mathematics & Statistics,
       Psychological & Brain Sciences, and Biomedical Engineering
Boston University
sites.bu.edu/steveg<https://urldefense.com/v3/__https://nam02.safelinks.protection.outlook.com/?url=https*3A*2F*2Furldefense.com*2Fv3*2F__https*3A*2Fnam02.safelinks.protection.outlook.com*2F*3Furl*3Dhttp*3A*2F*2Fsites.bu.edu*2Fsteveg*26data*3D05*7C01*7Cjose*40rubic.rutgers.edu*7Ca8ef03a8fe344fa00a6608da663fea46*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637934721988651450*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C*26sdata*3DWgX3nDmuC1*2BBjd5aw7glXESeoJEO4hjeD1WoMp4Zfnk*3D*26reserved*3D0__*3BJSUlJSUlJSUlJSUlJSUlJSUlJSUl!!IKRxdwAv5BmarQ!eWNFMa419s0rn6idqZUBmf68VFVZl9uSc2H0Io-F7ev3NrzV1tgINbpiuWQySh0fQrTA8dzvNgKnA6pt7vU*24&data=05*7C01*7Cjose*40rubic.rutgers.edu*7Cde2d6a4ba28f4bb3cd3108da68067efa*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637936675444169016*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=flYtkULDvo4R4c6s19VaD0*2FhFsfVxUE63ZeKA2lvnLg*3D&reserved=0__;JSUlJSUlJSUlJSoqKiolJSoqKioqKioqKioqKioqKiUlKiolJSUlJSUlJSUlJSUlJSUlJSUlJSU!!IKRxdwAv5BmarQ!cX2KY-fD__Znbt4fE_Rvu7VrteYHqfV9W1IcLPkhx7oL--09sVAQjnoRqMemLWsF4Lyfbl4IUqQYyxaM0Lw$>
steve at bu.edu<mailto:steve at bu.edu>

________________________________
From: Connectionists <connectionists-bounces at mailman.srv.cs.cmu.edu<mailto:connectionists-bounces at mailman.srv.cs.cmu.edu>> on behalf of Danko Nikolic <danko.nikolic at gmail.com<mailto:danko.nikolic at gmail.com>>
Sent: Thursday, July 14, 2022 6:05 AM
To: Gary Marcus <gary.marcus at nyu.edu<mailto:gary.marcus at nyu.edu>>
Cc: connectionists at mailman.srv.cs.cmu.edu<mailto:connectionists at mailman.srv.cs.cmu.edu> <connectionists at mailman.srv.cs.cmu.edu<mailto:connectionists at mailman.srv.cs.cmu.edu>>; AIhub <aihuborg at gmail.com<mailto:aihuborg at gmail.com>>
Subject: Re: Connectionists: Stephen Hanson in conversation with Geoff Hinton

Dear Gary and everyone,

I am continuing the discussion from where we left off a few months ago. Back then, some of us agreed that the problem of understanding remains unsolved.

As a reminder, the challenge for connectionism was to 1) learn with few examples and 2) apply the knowledge to a broad set of situations.

I am happy to announce that I have now finished a draft of a paper in which I propose how the brain is able to achieve that. The manuscript requires a bit of patience for two reasons: one is that the reader may be exposed for the first time to certain aspects of brain physiology. The second reason is that it may take some effort to understand the counterintuitive implications of the new ideas (this requires a different way of thinking than what we are used to based on connectionism).

In short, I am suggesting that instead of the connectionist paradigm, we adopt transient selection of subnetworks. The mechanisms that transiently select brain subnetworks are distributed all over the nervous system and, I argue, are our main machinery for thinking/cognition. The surprising outcome is that neural activation, which was central in connectionism, now plays only a supportive role, while the real 'workers' within the brain are the mechanisms for transient selection of subnetworks.

I also explain how I think transient selection achieves learning with only a few examples and how the learned knowledge is possible to apply to a broad set of situations.

The manuscript is made available to everyone and can be downloaded here: https://bit.ly/3IFs8Ug<https://urldefense.com/v3/__https://nam02.safelinks.protection.outlook.com/?url=https*3A*2F*2Furldefense.com*2Fv3*2F__https*3A*2Fnam02.safelinks.protection.outlook.com*2F*3Furl*3Dhttps*3A*2F*2Fbit.ly*2F3IFs8Ug*26data*3D05*7C01*7Cjose*40rubic.rutgers.edu*7Ca8ef03a8fe344fa00a6608da663fea46*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637934721988807689*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C*26sdata*3DMNIL4DHPCqUZi*2FgViweOqcW2goEoo4xwvOhhtokhy78*3D*26reserved*3D0__*3BJSUlJSUlJSUlJSUlJSUlJSUlJSUl!!IKRxdwAv5BmarQ!eWNFMa419s0rn6idqZUBmf68VFVZl9uSc2H0Io-F7ev3NrzV1tgINbpiuWQySh0fQrTA8dzvNgKn2yVRfrw*24&data=05*7C01*7Cjose*40rubic.rutgers.edu*7Cde2d6a4ba28f4bb3cd3108da68067efa*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637936675444169016*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=POpuquIXvRc0YPYgeTJLP*2Fzilu97gJsaYUfoBjzYScI*3D&reserved=0__;JSUlJSUlJSUlJSoqKiolJSoqKioqKioqKioqKioqKiUlKiolJSUlJSUlJSUlJSUlJSUlJSUlJSU!!IKRxdwAv5BmarQ!cX2KY-fD__Znbt4fE_Rvu7VrteYHqfV9W1IcLPkhx7oL--09sVAQjnoRqMemLWsF4Lyfbl4IUqQYXYEddx0$>
(I apologize for the neuroscience lingo, which I tried to minimize.)

It will likely take a wide effort to implement these concepts as an AI technology, provided my ideas do not have a major flaw in the first place. Does anyone see a flaw?

Thanks.

Danko


Dr. Danko Nikolić
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On Thu, Feb 3, 2022 at 5:25 PM Gary Marcus <gary.marcus at nyu.edu<mailto:gary.marcus at nyu.edu>> wrote:
Dear Danko,

Well said. I had a somewhat similar response to Jeff Dean’s 2021 TED talk, in which he said (paraphrasing from memory, because I don’t remember the precise words) that the famous 200 Quoc Le unsupervised model [https://static.googleusercontent.com/media/research.google.com/en//archive/unsupervised_icml2012.pdf<https://urldefense.com/v3/__https://nam02.safelinks.protection.outlook.com/?url=https*3A*2F*2Furldefense.com*2Fv3*2F__https*3A*2Fnam02.safelinks.protection.outlook.com*2F*3Furl*3Dhttps*3A*2F*2Fstatic.googleusercontent.com*2Fmedia*2Fresearch.google.com*2Fen*2F*2Farchive*2Funsupervised_icml2012.pdf*26data*3D05*7C01*7Cjose*40rubic.rutgers.edu*7Ca8ef03a8fe344fa00a6608da663fea46*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637934721988807689*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C*26sdata*3DRCJV3x4ltSNCdgEngExzJxblz75k61kEI1ZjGib28*2Bg*3D*26reserved*3D0__*3BJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSU!!IKRxdwAv5BmarQ!eWNFMa419s0rn6idqZUBmf68VFVZl9uSc2H0Io-F7ev3NrzV1tgINbpiuWQySh0fQrTA8dzvNgKnPP1KzV4*24&data=05*7C01*7Cjose*40rubic.rutgers.edu*7Cde2d6a4ba28f4bb3cd3108da68067efa*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637936675444325239*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=uB*2FkUr9zKI7OmnNnZy1DOCBvQoeY8yJ4InHomIBDH38*3D&reserved=0__;JSUlJSUlJSUlJSoqKioqKioqKiUlKioqKioqKioqKioqKioqJSUqKiUlJSUlJSUlJSUlJSUlJSUlJSUlJQ!!IKRxdwAv5BmarQ!cX2KY-fD__Znbt4fE_Rvu7VrteYHqfV9W1IcLPkhx7oL--09sVAQjnoRqMemLWsF4Lyfbl4IUqQYgZwf_d0$>] had learned the concept of a ca. In reality the model had clustered together some catlike images based on the image statistics that it had extracted, but it was a long way from a full, counterfactual-supporting concept of a cat, much as you describe below.

I fully agree with you that the reason for even having a semantics is as you put it, "to 1) learn with a few examples and 2) apply the knowledge to a broad set of situations.” GPT-3 sometimes gives the appearance of having done so, but it falls apart under close inspection, so the problem remains unsolved.

Gary



On Feb 3, 2022, at 3:19 AM, Danko Nikolic <danko.nikolic at gmail.com<mailto:danko.nikolic at gmail.com>> wrote:

G. Hinton wrote: "I believe that any reasonable person would admit that if you ask a neural net to draw a picture of a hamster wearing a red hat and it draws such a picture, it understood the request."

I would like to suggest why drawing a hamster with a red hat does not necessarily imply understanding of the statement "hamster wearing a red hat".
To understand that "hamster wearing a red hat" would mean inferring, in newly emerging situations of this hamster, all the real-life implications that the red hat brings to the little animal.

What would happen to the hat if the hamster rolls on its back? (Would the hat fall off?)
What would happen to the red hat when the hamster enters its lair? (Would the hat fall off?)
What would happen to that hamster when it goes foraging? (Would the red hat have an influence on finding food?)
What would happen in a situation of being chased by a predator? (Would it be easier for predators to spot the hamster?)

...and so on.

Countless many questions can be asked. One has understood "hamster wearing a red hat" only if one can answer reasonably well many of such real-life relevant questions. Similarly, a student has understood materias in a class only if they can apply the materials in real-life situations (e.g., applying Pythagora's theorem). If a student gives a correct answer to a multiple choice question, we don't know whether the student understood the material or whether this was just rote learning (often, it is rote learning).

I also suggest that understanding also comes together with effective learning: We store new information in such a way that we can recall it later and use it effectively  i.e., make good inferences in newly emerging situations based on this knowledge.

In short: Understanding makes us humans able to 1) learn with a few examples and 2) apply the knowledge to a broad set of situations.

No neural network today has such capabilities and we don't know how to give them such capabilities. Neural networks need large amounts of training examples that cover a large variety of situations and then the networks can only deal with what the training examples have already covered. Neural networks cannot extrapolate in that 'understanding' sense.

I suggest that understanding truly extrapolates from a piece of knowledge. It is not about satisfying a task such as translation between languages or drawing hamsters with hats. It is how you got the capability to complete the task: Did you only have a few examples that covered something different but related and then you extrapolated from that knowledge? If yes, this is going in the direction of understanding. Have you seen countless examples and then interpolated among them? Then perhaps it is not understanding.

So, for the case of drawing a hamster wearing a red hat, understanding perhaps would have taken place if the following happened before that:

1) first, the network learned about hamsters (not many examples)
2) after that the network learned about red hats (outside the context of hamsters and without many examples)
3) finally the network learned about drawing (outside of the context of hats and hamsters, not many examples)

After that, the network is asked to draw a hamster with a red hat. If it does it successfully, maybe we have started cracking the problem of understanding.

Note also that this requires the network to learn sequentially without exhibiting catastrophic forgetting of the previous knowledge, which is possibly also a consequence of human learning by understanding.


Danko






Dr. Danko Nikolić
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On Thu, Feb 3, 2022 at 9:55 AM Asim Roy <ASIM.ROY at asu.edu<mailto:ASIM.ROY at asu.edu>> wrote:

Without getting into the specific dispute between Gary and Geoff, I think with approaches similar to GLOM, we are finally headed in the right direction. There’s plenty of neurophysiological evidence for single-cell abstractions and multisensory neurons in the brain, which one might claim correspond to symbols. And I think we can finally reconcile the decades old dispute between Symbolic AI and Connectionism.



GARY: (Your GLOM, which as you know I praised publicly, is in many ways an effort to wind up with encodings that effectively serve as symbols in exactly that way, guaranteed to serve as consistent representations of specific concepts.)

GARY: I have never called for dismissal of neural networks, but rather for some hybrid between the two (as you yourself contemplated in 1991); the point of the 2001 book was to characterize exactly where multilayer perceptrons succeeded and broke down, and where symbols could complement them.



Asim Roy

Professor, Information Systems

Arizona State University

Lifeboat Foundation Bios: Professor Asim Roy<https://urldefense.com/v3/__https://nam02.safelinks.protection.outlook.com/?url=https*3A*2F*2Furldefense.com*2Fv3*2F__https*3A*2Fnam02.safelinks.protection.outlook.com*2F*3Furl*3Dhttps*3A*2F*2Furldefense.proofpoint.com*2Fv2*2Furl*3Fu*3Dhttps-3A__lifeboat.com_ex_bios.asim.roy*26d*3DDwMFaQ*26c*3DslrrB7dE8n7gBJbeO0g-IQ*26r*3DwQR1NePCSj6dOGDD0r6B5Kn1fcNaTMg7tARe7TdEDqQ*26m*3DwaSKY67JF57IZXg30ysFB_R7OG9zoQwFwxyps6FbTa1Zh5mttxRot_t4N7mn68Pj*26s*3DoDRJmXX22O8NcfqyLjyu4Ajmt8pcHWquTxYjeWahfuw*26e*3D*26data*3D05*7C01*7Cjose*40rubic.rutgers.edu*7Ca8ef03a8fe344fa00a6608da663fea46*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637934721988807689*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C*26sdata*3DTsTTl0K9r4sKu2t6zoYDMPewTIfYi25ZAvmrCVNhQy0*3D*26reserved*3D0__*3BJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSU!!IKRxdwAv5BmarQ!eWNFMa419s0rn6idqZUBmf68VFVZl9uSc2H0Io-F7ev3NrzV1tgINbpiuWQySh0fQrTA8dzvNgKnI1LmD0g*24&data=05*7C01*7Cjose*40rubic.rutgers.edu*7Cde2d6a4ba28f4bb3cd3108da68067efa*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637936675444325239*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=upIkt0aXjRA4JK*2B2rZKXbGhnEnmdka124QdHuxKmay8*3D&reserved=0__;JSUlJSUlJSUlJSoqKioqKioqKioqKioqKioqKiolJSoqKioqKioqKioqKioqKiUlKiUlJSUlJSUlJSUlJSUlJSUlJSUlJQ!!IKRxdwAv5BmarQ!cX2KY-fD__Znbt4fE_Rvu7VrteYHqfV9W1IcLPkhx7oL--09sVAQjnoRqMemLWsF4Lyfbl4IUqQY7boQNo4$>

Asim Roy | iSearch (asu.edu)<https://urldefense.com/v3/__https://nam02.safelinks.protection.outlook.com/?url=https*3A*2F*2Furldefense.com*2Fv3*2F__https*3A*2Fnam02.safelinks.protection.outlook.com*2F*3Furl*3Dhttps*3A*2F*2Furldefense.proofpoint.com*2Fv2*2Furl*3Fu*3Dhttps-3A__isearch.asu.edu_profile_9973*26d*3DDwMFaQ*26c*3DslrrB7dE8n7gBJbeO0g-IQ*26r*3DwQR1NePCSj6dOGDD0r6B5Kn1fcNaTMg7tARe7TdEDqQ*26m*3DwaSKY67JF57IZXg30ysFB_R7OG9zoQwFwxyps6FbTa1Zh5mttxRot_t4N7mn68Pj*26s*3DjCesWT7oGgX76_y7PFh4cCIQ-Ife-esGblJyrBiDlro*26e*3D*26data*3D05*7C01*7Cjose*40rubic.rutgers.edu*7Ca8ef03a8fe344fa00a6608da663fea46*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637934721988807689*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C*26sdata*3DVoTskPWtmcmjeuTrtJW2ypS9pw*2F8ROjuidTO6Uow6F4*3D*26reserved*3D0__*3BJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUl!!IKRxdwAv5BmarQ!eWNFMa419s0rn6idqZUBmf68VFVZl9uSc2H0Io-F7ev3NrzV1tgINbpiuWQySh0fQrTA8dzvNgKnmMZrjfE*24&data=05*7C01*7Cjose*40rubic.rutgers.edu*7Cde2d6a4ba28f4bb3cd3108da68067efa*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637936675444325239*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=aUwPVgU5NlS6XPeK3obj77vFeOcHf5BgYwhgRr*2BkbRo*3D&reserved=0__;JSUlJSUlJSUlJSoqKioqKioqKioqKioqKioqKiolJSoqKioqKioqKioqKioqKiUlKiolJSUlJSUlJSUlJSUlJSUlJSUlJSU!!IKRxdwAv5BmarQ!cX2KY-fD__Znbt4fE_Rvu7VrteYHqfV9W1IcLPkhx7oL--09sVAQjnoRqMemLWsF4Lyfbl4IUqQYENycSQ4$>





From: Connectionists <connectionists-bounces at mailman.srv.cs.cmu.edu<mailto:connectionists-bounces at mailman.srv.cs.cmu.edu>> On Behalf Of Gary Marcus
Sent: Wednesday, February 2, 2022 1:26 PM
To: Geoffrey Hinton <geoffrey.hinton at gmail.com<mailto:geoffrey.hinton at gmail.com>>
Cc: AIhub <aihuborg at gmail.com<mailto:aihuborg at gmail.com>>; connectionists at mailman.srv.cs.cmu.edu<mailto:connectionists at mailman.srv.cs.cmu.edu>
Subject: Re: Connectionists: Stephen Hanson in conversation with Geoff Hinton



Dear Geoff, and interested others,



What, for example, would you make of a system that often drew the red-hatted hamster you requested, and perhaps a fifth of the time gave you utter nonsense?  Or say one that you trained to create birds but sometimes output stuff like this:



<image001.png>



One could



a. avert one’s eyes and deem the anomalous outputs irrelevant

or

b. wonder if it might be possible that sometimes the system gets the right answer for the wrong reasons (eg partial historical contingency), and wonder whether another approach might be indicated.



Benchmarks are harder than they look; most of the field has come to recognize that. The Turing Test has turned out to be a lousy measure of intelligence, easily gamed. It has turned out empirically that the Winograd Schema Challenge did not measure common sense as well as Hector might have thought. (As it happens, I am a minor coauthor of a very recent review on this very topic: https://arxiv.org/abs/2201.02387<https://urldefense.com/v3/__https://nam02.safelinks.protection.outlook.com/?url=https*3A*2F*2Furldefense.com*2Fv3*2F__https*3A*2Fnam02.safelinks.protection.outlook.com*2F*3Furl*3Dhttps*3A*2F*2Furldefense.com*2Fv3*2F__https*3A*2Farxiv.org*2Fabs*2F2201.02387__*3B!!IKRxdwAv5BmarQ!INA0AMmG3iD1B8MDtLfjWCwcBjxO-e-eM2Ci9KEO_XYOiIEgiywK-G_8j6L3bHA*24*26data*3D05*7C01*7Cjose*40rubic.rutgers.edu*7Ca8ef03a8fe344fa00a6608da663fea46*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637934721988807689*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C*26sdata*3DxoBj5RG4j6Kk4wKFfpi9YkvqBGcXj52ME8CO*2BGs7Ibs*3D*26reserved*3D0__*3BJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJQ!!IKRxdwAv5BmarQ!eWNFMa419s0rn6idqZUBmf68VFVZl9uSc2H0Io-F7ev3NrzV1tgINbpiuWQySh0fQrTA8dzvNgKnD770Qh0*24&data=05*7C01*7Cjose*40rubic.rutgers.edu*7Cde2d6a4ba28f4bb3cd3108da68067efa*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637936675444325239*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=CnIYirAi2EmIW17w3ppH2Szs0WihNLtl9JQno78maC8*3D&reserved=0__;JSUlJSUlJSUlJSoqKioqKioqKioqJSUqKioqKioqKioqKioqKiolJSoqJSUlJSUlJSUlJSUlJSUlJSUlJSU!!IKRxdwAv5BmarQ!cX2KY-fD__Znbt4fE_Rvu7VrteYHqfV9W1IcLPkhx7oL--09sVAQjnoRqMemLWsF4Lyfbl4IUqQYQSUNxzg$>) But its conquest in no way means machines now have common sense; many people from many different perspectives recognize that (including, e.g., Yann LeCun, who generally tends to be more aligned with you than with me).



So: on the goalpost of the Winograd schema, I was wrong, and you can quote me; but what you said about me and machine translation remains your invention, and it is inexcusable that you simply ignored my 2019 clarification. On the essential goal of trying to reach meaning and understanding, I remain unmoved; the problem remains unsolved.



All of the problems LLMs have with coherence, reliability, truthfulness, misinformation, etc stand witness to that fact. (Their persistent inability to filter out toxic and insulting remarks stems from the same.) I am hardly the only person in the field to see that progress on any given benchmark does not inherently mean that the deep underlying problems have solved. You, yourself, in fact, have occasionally made that point.



With respect to embeddings: Embeddings are very good for natural language processing; but NLP is not the same as NLU – when it comes to understanding, their worth is still an open question. Perhaps they will turn out to be necessary; they clearly aren’t sufficient. In their extreme, they might even collapse into being symbols, in the sense of uniquely identifiable encodings, akin to the ASCII code, in which a specific set of numbers stands for a specific word or concept. (Wouldn’t that be ironic?)



(Your GLOM, which as you know I praised publicly, is in many ways an effort to wind up with encodings that effectively serve as symbols in exactly that way, guaranteed to serve as consistent representations of specific concepts.)



Notably absent from your email is any kind of apology for misrepresenting my position. It’s fine to say that “many people thirty years ago once thought X” and another to say “Gary Marcus said X in 2015”, when I didn’t. I have consistently felt throughout our interactions that you have mistaken me for Zenon Pylyshyn; indeed, you once (at NeurIPS 2014) apologized to me for having made that error. I am still not he.



Which maybe connects to the last point; if you read my work, you would see thirty years of arguments for neural networks, just not in the way that you want them to exist. I have ALWAYS argued that there is a role for them;  characterizing me as a person “strongly opposed to neural networks” misses the whole point of my 2001 book, which was subtitled “Integrating Connectionism and Cognitive Science.”



In the last two decades or so you have insisted (for reasons you have never fully clarified, so far as I know) on abandoning symbol-manipulation, but the reverse is not the case: I have never called for dismissal of neural networks, but rather for some hybrid between the two (as you yourself contemplated in 1991); the point of the 2001 book was to characterize exactly where multilayer perceptrons succeeded and broke down, and where symbols could complement them. It’s a rhetorical trick (which is what the previous thread was about) to pretend otherwise.



Gary





On Feb 2, 2022, at 11:22, Geoffrey Hinton <geoffrey.hinton at gmail.com<mailto:geoffrey.hinton at gmail.com>> wrote:



Embeddings are just vectors of soft feature detectors and they are very good for NLP.  The quote on my webpage from Gary's 2015 chapter implies the opposite.



A few decades ago, everyone I knew then would have agreed that the ability to translate a sentence into many different languages was strong evidence that you understood it.



But once neural networks could do that, their critics moved the goalposts. An exception is Hector Levesque who defined the goalposts more sharply by saying that the ability to get pronoun references correct in Winograd sentences is a crucial test. Neural nets are improving at that but still have some way to go. Will Gary agree that when they can get pronoun references correct in Winograd sentences they really do understand? Or does he want to reserve the right to weasel out of that too?



Some people, like Gary, appear to be strongly opposed to neural networks because they do not fit their preconceived notions of how the mind should work.

I believe that any reasonable person would admit that if you ask a neural net to draw a picture of a hamster wearing a red hat and it draws such a picture, it understood the request.



Geoff











On Wed, Feb 2, 2022 at 1:38 PM Gary Marcus <gary.marcus at nyu.edu<mailto:gary.marcus at nyu.edu>> wrote:

Dear AI Hub, cc: Steven Hanson and Geoffrey Hinton, and the larger neural network community,



There has been a lot of recent discussion on this list about framing and scientific integrity. Often the first step in restructuring narratives is to bully and dehumanize critics. The second is to misrepresent their position. People in positions of power are sometimes tempted to do this.



The Hinton-Hanson interview that you just published is a real-time example of just that. It opens with a needless and largely content-free personal attack on a single scholar (me), with the explicit intention of discrediting that person. Worse, the only substantive thing it says is false.



Hinton says “In 2015 he [Marcus] made a prediction that computers wouldn’t be able to do machine translation.”



I never said any such thing.



What I predicted, rather, was that multilayer perceptrons, as they existed then, would not (on their own, absent other mechanisms) understand language. Seven years later, they still haven’t, except in the most superficial way.



I made no comment whatsoever about machine translation, which I view as a separate problem, solvable to a certain degree by correspondance without semantics.



I specifically tried to clarify Hinton’s confusion in 2019, but, disappointingly, he has continued to purvey misinformation despite that clarification. Here is what I wrote privately to him then, which should have put the matter to rest:



You have taken a single out of context quote [from 2015] and misrepresented it. The quote, which you have prominently displayed at the bottom on your own web page, says:



Hierarchies of features are less suited to challenges such as language, inference, and high-level planning. For example, as Noam Chomsky famously pointed out, language is filled with sentences you haven't seen before. Pure classifier systems don't know what to do with such sentences. The talent of feature detectors -- in  identifying which member of some category something belongs to -- doesn't translate into understanding novel  sentences, in which each sentence has its own unique meaning.



It does not say "neural nets would not be able to deal with novel sentences"; it says that hierachies of features detectors (on their own, if you read the context of the essay) would have trouble understanding novel sentences.



Google Translate does yet not understand the content of the sentences is translates. It cannot reliably answer questions about who did what to whom, or why, it cannot infer the order of the events in paragraphs, it can't determine the internal consistency of those events, and so forth.



Since then, a number of scholars, such as the the computational linguist Emily Bender, have made similar points, and indeed current LLM difficulties with misinformation, incoherence and fabrication all follow from these concerns. Quoting from Bender’s prizewinning 2020 ACL article on the matter with Alexander Koller, https://aclanthology.org/2020.acl-main.463.pdf<https://urldefense.com/v3/__https://nam02.safelinks.protection.outlook.com/?url=https*3A*2F*2Furldefense.com*2Fv3*2F__https*3A*2Fnam02.safelinks.protection.outlook.com*2F*3Furl*3Dhttps*3A*2F*2Furldefense.proofpoint.com*2Fv2*2Furl*3Fu*3Dhttps-3A__aclanthology.org_2020.acl-2Dmain.463.pdf*26d*3DDwMFaQ*26c*3DslrrB7dE8n7gBJbeO0g-IQ*26r*3DwQR1NePCSj6dOGDD0r6B5Kn1fcNaTMg7tARe7TdEDqQ*26m*3DxnFSVUARkfmiXtiTP_uXfFKv4uNEGgEeTluRFR7dnUpay2BM5EiLz-XYCkBNJLlL*26s*3DK-Vl6vSvzuYtRMi-s4j7mzPkNRTb-I6Zmf7rbuKEBpk*26e*3D*26data*3D05*7C01*7Cjose*40rubic.rutgers.edu*7Ca8ef03a8fe344fa00a6608da663fea46*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637934721988807689*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C*26sdata*3DN8zheAC6GCkYFI6r*2FNwG318*2BDIOcC*2Bdkd3o*2BHAUUNKs*3D*26reserved*3D0__*3BJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUl!!IKRxdwAv5BmarQ!eWNFMa419s0rn6idqZUBmf68VFVZl9uSc2H0Io-F7ev3NrzV1tgINbpiuWQySh0fQrTA8dzvNgKn5DBrG0M*24&data=05*7C01*7Cjose*40rubic.rutgers.edu*7Cde2d6a4ba28f4bb3cd3108da68067efa*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637936675444325239*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=goH76XjsEb9iin7KR6WXk8GwKkHhNHAIfrH*2BBmfxqVA*3D&reserved=0__;JSUlJSUlJSUlJSoqKioqKioqKioqKioqKioqKiolJSoqKioqKioqKioqKioqKiUlKioqKiolJSUlJSUlJSUlJSUlJSUlJSUlJSU!!IKRxdwAv5BmarQ!cX2KY-fD__Znbt4fE_Rvu7VrteYHqfV9W1IcLPkhx7oL--09sVAQjnoRqMemLWsF4Lyfbl4IUqQYsfL_9qw$>, also emphasizing issues of understanding and meaning:



The success of the large neural language models on many NLP tasks is exciting. However, we find that these successes sometimes lead to hype in which these models are being described as “understanding” language or capturing “meaning”. In this position paper, we argue that a system trained only on form has a priori no way to learn meaning. .. a clear understanding of the distinction between form and meaning will help guide the field towards better science around natural language understanding.



Her later article with Gebru on language models “stochastic parrots” is in some ways an extension of this point; machine translation requires mimicry, true understanding (which is what I was discussing in 2015) requires something deeper than that.



Hinton’s intellectual error here is in equating machine translation with the deeper comprehension that robust natural language understanding will require; as Bender and Koller observed, the two appear not to be the same. (There is a longer discussion of the relation between language understanding and machine translation, and why the latter has turned out to be more approachable than the former, in my 2019 book with Ernest Davis).



More broadly, Hinton’s ongoing dismissiveness of research from perspectives other than his own (e.g. linguistics) have done the field a disservice.



As Herb Simon once observed, science does not have to be zero-sum.



Sincerely,

Gary Marcus

Professor Emeritus

New York University



On Feb 2, 2022, at 06:12, AIhub <aihuborg at gmail.com<mailto:aihuborg at gmail.com>> wrote:



Stephen Hanson in conversation with Geoff Hinton



In the latest episode of this video series for AIhub.org<https://urldefense.com/v3/__https://nam02.safelinks.protection.outlook.com/?url=https*3A*2F*2Furldefense.com*2Fv3*2F__https*3A*2Fnam02.safelinks.protection.outlook.com*2F*3Furl*3Dhttps*3A*2F*2Furldefense.proofpoint.com*2Fv2*2Furl*3Fu*3Dhttp-3A__AIhub.org*26d*3DDwMFaQ*26c*3DslrrB7dE8n7gBJbeO0g-IQ*26r*3DwQR1NePCSj6dOGDD0r6B5Kn1fcNaTMg7tARe7TdEDqQ*26m*3DxnFSVUARkfmiXtiTP_uXfFKv4uNEGgEeTluRFR7dnUpay2BM5EiLz-XYCkBNJLlL*26s*3DeOtzMh8ILIH5EF7K20Ks4Fr27XfNV_F24bkj-SPk-2A*26e*3D*26data*3D05*7C01*7Cjose*40rubic.rutgers.edu*7Ca8ef03a8fe344fa00a6608da663fea46*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637934721988807689*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C*26sdata*3DpfEW*2Fv0CukkEYbK2XDdg5onbmwJ6*2B5Y38lGI*2Br0cPb4*3D*26reserved*3D0__*3BJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSU!!IKRxdwAv5BmarQ!eWNFMa419s0rn6idqZUBmf68VFVZl9uSc2H0Io-F7ev3NrzV1tgINbpiuWQySh0fQrTA8dzvNgKnE9SeU2s*24&data=05*7C01*7Cjose*40rubic.rutgers.edu*7Cde2d6a4ba28f4bb3cd3108da68067efa*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637936675444325239*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=A4s4K5ae7IZGsu9uXVabrSBB36dBldzrj2A7D9u8lwc*3D&reserved=0__;JSUlJSUlJSUlJSoqKioqKioqKioqKioqKioqKiolJSoqKioqKioqKioqKioqKiUlKioqKiUlJSUlJSUlJSUlJSUlJSUlJSUl!!IKRxdwAv5BmarQ!cX2KY-fD__Znbt4fE_Rvu7VrteYHqfV9W1IcLPkhx7oL--09sVAQjnoRqMemLWsF4Lyfbl4IUqQYvU6N1Tw$>, Stephen Hanson talks to  Geoff Hinton about neural networks, backpropagation, overparameterization, digit recognition, voxel cells, syntax and semantics, Winograd sentences, and more.



You can watch the discussion, and read the transcript, here:

https://aihub.org/2022/02/02/what-is-ai-stephen-hanson-in-conversation-with-geoff-hinton/<https://urldefense.com/v3/__https://nam02.safelinks.protection.outlook.com/?url=https*3A*2F*2Furldefense.com*2Fv3*2F__https*3A*2Fnam02.safelinks.protection.outlook.com*2F*3Furl*3Dhttps*3A*2F*2Furldefense.proofpoint.com*2Fv2*2Furl*3Fu*3Dhttps-3A__aihub.org_2022_02_02_what-2Dis-2Dai-2Dstephen-2Dhanson-2Din-2Dconversation-2Dwith-2Dgeoff-2Dhinton_*26d*3DDwMFaQ*26c*3DslrrB7dE8n7gBJbeO0g-IQ*26r*3DwQR1NePCSj6dOGDD0r6B5Kn1fcNaTMg7tARe7TdEDqQ*26m*3Dyl7-VPSvMrHWYKZFtKdFpThQ9UTb2jW14grhVOlAwV21R4FwPri0ROJ-uFdMqHy1*26s*3DOY_RYGrfxOqV7XeNJDHuzE--aEtmNRaEyQ0VJkqFCWw*26e*3D*26data*3D05*7C01*7Cjose*40rubic.rutgers.edu*7Ca8ef03a8fe344fa00a6608da663fea46*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637934721988807689*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C*26sdata*3DFG3TszB*2FGeSuXxevTaSkgHdKU8U7HQVp0z*2B2g0EKNqg*3D*26reserved*3D0__*3BJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJQ!!IKRxdwAv5BmarQ!eWNFMa419s0rn6idqZUBmf68VFVZl9uSc2H0Io-F7ev3NrzV1tgINbpiuWQySh0fQrTA8dzvNgKnwN1cRHo*24&data=05*7C01*7Cjose*40rubic.rutgers.edu*7Cde2d6a4ba28f4bb3cd3108da68067efa*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637936675444325239*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=AojUozaBIP92Dc0cZASu9Vlpj8DiMuxEt5SWnvdU2BA*3D&reserved=0__;JSUlJSUlJSUlJSoqKioqKioqKioqKioqKioqKiolJSoqKioqKioqKioqKioqKiUlKioqJSUlJSUlJSUlJSUlJSUlJSUlJSU!!IKRxdwAv5BmarQ!cX2KY-fD__Znbt4fE_Rvu7VrteYHqfV9W1IcLPkhx7oL--09sVAQjnoRqMemLWsF4Lyfbl4IUqQYZMzL7pI$>



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AIhub is a non-profit dedicated to connecting the AI community to the public by providing free, high-quality information through AIhub.org<https://urldefense.com/v3/__https://nam02.safelinks.protection.outlook.com/?url=https*3A*2F*2Furldefense.com*2Fv3*2F__https*3A*2Fnam02.safelinks.protection.outlook.com*2F*3Furl*3Dhttps*3A*2F*2Furldefense.proofpoint.com*2Fv2*2Furl*3Fu*3Dhttp-3A__AIhub.org*26d*3DDwMFaQ*26c*3DslrrB7dE8n7gBJbeO0g-IQ*26r*3DwQR1NePCSj6dOGDD0r6B5Kn1fcNaTMg7tARe7TdEDqQ*26m*3DxnFSVUARkfmiXtiTP_uXfFKv4uNEGgEeTluRFR7dnUpay2BM5EiLz-XYCkBNJLlL*26s*3DeOtzMh8ILIH5EF7K20Ks4Fr27XfNV_F24bkj-SPk-2A*26e*3D*26data*3D05*7C01*7Cjose*40rubic.rutgers.edu*7Ca8ef03a8fe344fa00a6608da663fea46*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637934721988807689*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C*26sdata*3DpfEW*2Fv0CukkEYbK2XDdg5onbmwJ6*2B5Y38lGI*2Br0cPb4*3D*26reserved*3D0__*3BJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSU!!IKRxdwAv5BmarQ!eWNFMa419s0rn6idqZUBmf68VFVZl9uSc2H0Io-F7ev3NrzV1tgINbpiuWQySh0fQrTA8dzvNgKnE9SeU2s*24&data=05*7C01*7Cjose*40rubic.rutgers.edu*7Cde2d6a4ba28f4bb3cd3108da68067efa*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637936675444325239*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=A4s4K5ae7IZGsu9uXVabrSBB36dBldzrj2A7D9u8lwc*3D&reserved=0__;JSUlJSUlJSUlJSoqKioqKioqKioqKioqKioqKiolJSoqKioqKioqKioqKioqKiUlKioqKiUlJSUlJSUlJSUlJSUlJSUlJSUl!!IKRxdwAv5BmarQ!cX2KY-fD__Znbt4fE_Rvu7VrteYHqfV9W1IcLPkhx7oL--09sVAQjnoRqMemLWsF4Lyfbl4IUqQYvU6N1Tw$> (https://aihub.org/<https://urldefense.com/v3/__https://nam02.safelinks.protection.outlook.com/?url=https*3A*2F*2Furldefense.com*2Fv3*2F__https*3A*2Fnam02.safelinks.protection.outlook.com*2F*3Furl*3Dhttps*3A*2F*2Furldefense.proofpoint.com*2Fv2*2Furl*3Fu*3Dhttps-3A__aihub.org_*26d*3DDwMFaQ*26c*3DslrrB7dE8n7gBJbeO0g-IQ*26r*3DwQR1NePCSj6dOGDD0r6B5Kn1fcNaTMg7tARe7TdEDqQ*26m*3Dyl7-VPSvMrHWYKZFtKdFpThQ9UTb2jW14grhVOlAwV21R4FwPri0ROJ-uFdMqHy1*26s*3DIKFanqeMi73gOiS7yD-X_vRx_OqDAwv1Il5psrxnhIA*26e*3D*26data*3D05*7C01*7Cjose*40rubic.rutgers.edu*7Ca8ef03a8fe344fa00a6608da663fea46*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637934721988807689*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C*26sdata*3Dv6s8qMi*2FjcAxRh3tMbB7zJ81hKM4*2FGOFZxYH3tPIoUw*3D*26reserved*3D0__*3BJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJQ!!IKRxdwAv5BmarQ!eWNFMa419s0rn6idqZUBmf68VFVZl9uSc2H0Io-F7ev3NrzV1tgINbpiuWQySh0fQrTA8dzvNgKn-jB2qQI*24&data=05*7C01*7Cjose*40rubic.rutgers.edu*7Cde2d6a4ba28f4bb3cd3108da68067efa*7Cb92d2b234d35447093ff69aca6632ffe*7C1*7C0*7C637936675444325239*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=PVbI7ArNR2Hlhd*2FIM2bxK6wDSymTzBgKJyq*2F5Mtta2M*3D&reserved=0__;JSUlJSUlJSUlJSoqKioqKioqKioqKioqKioqKiolJSoqKioqKioqKioqKioqKiUlKioqJSUlJSUlJSUlJSUlJSUlJSUlJSUlJQ!!IKRxdwAv5BmarQ!cX2KY-fD__Znbt4fE_Rvu7VrteYHqfV9W1IcLPkhx7oL--09sVAQjnoRqMemLWsF4Lyfbl4IUqQYF7zDORA$>). 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Twitter: @aihuborg

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Stephen Jose Hanson

Professor, Director

Psychology Department, RUBIC (Rutgers University Brain Imaging Center)

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Stephen Jose Hanson
Professor, Director
Psychology Department, RUBIC (Rutgers University Brain Imaging Center)

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