AndreInfante comments on Steelmaning AI risk critiques - Less Wrong

26 Post author: Stuart_Armstrong 23 July 2015 10:01AM

You are viewing a comment permalink. View the original post to see all comments and the full post content.

Comments (98)

You are viewing a single comment's thread. Show more comments above.

Comment author: AndreInfante 29 July 2015 09:20:59AM *  -1 points [-]

Yes it is a pure ANN - according to my use of the term ANN (arguing over definitions is a waste of time). ANNs are fully general circuit models, which obviously can re-implement any module from any computer - memory, database, whatever. The defining characteristics of an ANN are - simulated network circuit structure based on analog/real valued nodes, and some universal learning algorithm over the weights - such as SGD.

I think you misunderstood me. The current DeepMind AI that they've shown the public is a pure ANN. However, it has serious limitations because it's not easy to implement long-term memory as a naive ANN. So they're working on a successor called the "neural Turing machine" which marries an ANN to a database retrieval system - a specialized module.

You don't understand my position. I don't believe DL as it exists today is somehow the grail of AI. And yes I'm familiar with Hinton's 'Capsule' proposals. And yes I agree there is still substantial room for improvement in ANN microarchitecture, and especially for learning invariances - and unsupervised especially.

The thing is, many of those improvements are dependent on the task at hand. It's really, really hard for an off-the-shelf convnet neural network to learn the rules of three dimensional geometry, so we have to build it into the network. Our own visual processing shows signs of having the same structure imbedded in it.

The same structure would not, for example, benefit an NLP system, so we'd give it a different specialized structure, tuned to the hierarchical nature of language. The future, past a certain point, isn't making 'neural networks' better. It's making 'machine vision' networks better, or 'natural language' networks better. To make a long story short, specialized modules are an obvious place to go when you run into problem too complex to teach a naive convnet to do efficiently. Both for human engineers over the next 5-10, and for evolution over the last couple of billion.

You don't update on forum posts? Really? You seem pretty familiar with MIRI and LW positions. So are you saying that you arrived at those positions all on your own somehow?

I have a CS and machine learning background, and am well-read on the subject outside LW. My math is extremely spotty, and my physics is non-existent. I update on things I read that I understand, or things from people I believe to be reputable. I don't know you well enough to judge whether you usually say things that make sense, and I don't have the physics to understand the argument you made or judge its validity. Therefore, I'm not inclined to update much on your conclusion.

EDIT: Oh, and you still haven't responded to the cat thing. Which, seriously, seems like a pretty big hole in the universal learner hypothesis.

Comment author: jacob_cannell 29 July 2015 08:41:38PM *  0 points [-]

I update on things I read that I understand, or things from people I believe to be reputable.

So you are claiming that either you already understood AI/AGI completely when you arrived to LW, or you updated on LW/MIRI writings because they are 'reputable' - even though their positions are disavowed or even ridiculed by many machine learning experts.

EDIT: Oh, and you still haven't responded to the cat thing. Which, seriously, seems like a pretty big hole in the universal learner hypothesis.

I replied here, and as expected - it looks like you are factually mistaken in your assertion that disagreed with the ULH. Better yet, the outcome of your cat vs bird observation was correctly predicted by the ULH, so that's yet more evidence in its favor.