Earlier quoted context omitted.
just curious - how do neuroscience people and people of non-CS fields find out about HN?
A lot of bio stuff now generates huge amounts of data and needs computational skills to collect and interpret. My undergrad degree was in CS and I still split my time between training animals and training models (plus writing and, today, RAID-babysitting). We get about 1 Gb/min of neurophysiological data (x4-6 hours/day) and I'm hoping to scale that up quite a bit soon. People doing microscopy also generate giant dat…
DeepMind and Google: the battle to control artificial intelligence
121–130 of 142 posts
Re: DeepMind and Google: the battle to control artificial intelligence
#122Earlier quoted context omitted.
A lot of bio stuff now generates huge amounts of data and needs computational skills to collect and interpret. My undergrad degree was in CS and I still split my time between training animals and training models (plus writing and, today, RAID-babysitting). We get about 1 Gb/min of neurophysiological data (x4-6 hours/day) and I'm hoping to scale that up quite a bit soon. People doing microscopy also generate giant dat…
Just wanted to thank you for wading in here sand sharing your perspective.
Re: DeepMind and Google: the battle to control artificial intelligence
#123Earlier quoted context omitted.
Ever read the book "On Intelligence" by Jeff Hawkins and if so, what are you thoughts on it? I've read that and ray kurzweil's books and On Intelligence was my favorite and got me super interested in AI but I haven't done much with it so I'm curious what someone who has a PhD in neuroscience thinks of it.
Also “How to Build a Brain” by Chris Eliasmith. Interesting theories on how neurons represent functions and then build into a greater whole. I’m not a neuroscientist but my intuition says he might be getting closer to a solid mid-level (above the level of ion channels) understanding of brain function.
I'm collaborating with a woman who has also been working with him to model some of our data with NENGO, so I should really get around to that sooner rather than later.
Re: DeepMind and Google: the battle to control artificial intelligence
#124Is the article true in claiming that the model doesn't work if we increase the size of the paddle? Or change anything else?
Check out this video from mit/openai: https://www.youtube.com/watch?v=9EN_HoEk3KY The entire talk is interesting but the section at 21:40 talks about "Sim2Real with Meta Learning".
Re: DeepMind and Google: the battle to control artificial intelligence
#125Is the article true in claiming that the model doesn't work if we increase the size of the paddle? Or change anything else?
Note you can create a game where the simulated world has random variations and the RL algorithm will learn to handle it. If you don't train for it, obviously it won't learn it. Check out this video from mit/openai: https://www.youtube.com/watch?v=9EN_HoEk3KY The entire talk is interesting but the section at 21:40 talks about "Sim2Real with Meta Learning".
Re: DeepMind and Google: the battle to control artificial intelligence
#126Earlier quoted context omitted.
Just wanted to thank you for wading in here sand sharing your perspective.
You're welcome! Random interesting stuff is what makes the internet worth keeping around, after all :-)
What do you think about this? Who is the I? Where can I find it? Is it just mysticism?
Re: DeepMind and Google: the battle to control artificial intelligence
#127Fair questions: 1. Do you think you can predict what a super-intelligent mind would do? 2. Do you think a super-intelligent mind plotting to take over the world would jeopardize itself by letting its existence be known to the race of irrational monkeys that hold sway over all the resources necessary for its continued existence? Asking for a friend.
Re: DeepMind and Google: the battle to control artificial intelligence
#128Earlier quoted context omitted.
> AGI is the single biggest existential threat on the horizon > There is zero possibility of surviving AGI proliferation You're spreading unsubstantiated FUD. In another post from your account you suggest it's unethical to have children because AGI will be so bad. The vast majority of experts do not support any of these beliefs. Most experts believe we are not anywhere near close to AGI, and/or that we are missing fu…
The condescending tone you have does not help you. And you seem to be more concerned with looking at my account history or brushing me off as “fud” than actually addressing the substance of my comment. And yes, I do so completely believe in what I’ve written that I have opted to not have children until it is clear that a solution will be implemented. There are two parts to my argument: the substrate for AGI to spring…
You're making many scary claims about AI with no evidence to support your theses, along with a unrelated reference to natural selection. Both of the key arguments that you pointed out, 1) "the substrate for AGI to spring from is basically here or around the corner", and 2) "Human level ai is fundamentally incompatible with human society" were presented without any evidence and are unsupported by nearly all major experts in the field. FUD was not a distraction from your argument but a title for what it is: Fear, uncertainty, and doubt.
But, in case you want to read up, here are some experts contradicting your first claim:
1: https://www.technologyreview.com/s/608911/is-ai-riding-a-one...
2: https://www.quantamagazine.org/machine-learning-confronts-th...
3: https://www.axios.com/artificial-intelligence-pioneer-says-w...
And here are some experts contradicting your second claim:
1: https://80000hours.org/problem-profiles/positively-shaping-a...
2: https://medium.com/@deepmindsafetyresearch/building-safe-art...
3: https://openai.com/blog/ai-safety-needs-social-scientists/
4: https://www.scientificamerican.com/article/artificial-intell...
5: https://www.technologyreview.com/s/602410/no-the-experts-don...
Re: DeepMind and Google: the battle to control artificial intelligence
#129https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6140124/
This neural code is sparse and distributed, theoretically rendering it undetectable with population recording methods such as functional magnetic resonance imaging (fMRI). Existing studies nonetheless report decoding spatial codes in the human hippocampus using such techniques. Here we present results from a virtual navigation experiment in humans in which we eliminated visual- and path-related confounds and statistical limitations present in existing studies, ensuring that any positive decoding results would represent a voxel-place code. Consistent with theoretical arguments derived from electrophysiological data and contrary to existing fMRI studies, our results show that although participants were fully oriented during the navigation task, there was no statistical evidence for a place code.
Seems though, that his PhD thesis paper is not the only one that reported finding evidence of a place code, but that all studies had failed to account for confounding variables (or so it's claimed).
edit: To investigate this possibility, we repeated the analysis of Hassabis et al. (2009) on pure noise. [snip] If searchlight overlaps per se do not make a significant contribution to the correlation in searchlight accuracies, then there should be ∼5% false positives (by setting p 50% false positives in all ROI contrasts
Ouch. Not sure it really means much in the end, but I guess we should be wary of people who pump up the stories of supposed genius. I've noticed before that journalists struggle to resist 'child genius' stories that fall apart when investigated.
The exploits of DeepMind speak for themselves so he has nothing to prove at this point, but I noticed that the article claims he single handedly wrote Theme Park (which was mostly designed and written by Peter Molyneux).
And of course Elixir was a flop. Republic is described in the article as an "intricate political simulation" but by Wikipedia like this:
As a strategy game, the 3D game engine is mostly a facade on top of simpler rules and mechanics reminiscent of a boardgame
Reminiscent of a board game? That seems far off a world simulator. And saying "other games were a flop" is an exaggeration - there was only one other game (the Bond Villain simulataor). All this is something the article quite surprisingly just blows off as "he wanted to learn management". Really? The best way to learn management would be to become a manager at a successful company, I'd have thought.
I don't know Hassabis but what I know I like. He's trying to do bold and ambitious things, and has been a part of successful British companies as well as unsuccessful ones. He's contributed to science, and if his paper had flaws, well, welcome to the club, apparently many do. He comes across as clever but humble. I'd happily work with him any day.
But in the end I feel like unalloyed reports of genius in the press always end up coming back to earth when studied closely. Journalists should be more skeptical.
Re: DeepMind and Google: the battle to control artificial intelligence
#130"But human intelligence is limited by the size of the skull that houses the brain." When you think about it this way, it seems impossible that we haven't duplicated the capability of the human brain in an airplane hangar somewhere. What's going on inside our heads that we can't mimic? That magical algorithm...
Similar things have been or are being tried (eg https://en.wikipedia.org/wiki/Blue_Brain_Project ). But the _precise_ capabilities of a human brain are not actually what we want. For starters, an infant's brain does not have any immediately valuable capabilities. After that brain is exposed for several years to signals propagating through the brain's host body from the surrounding environment, it has developed many i…