bgalbraith

6 ms·

1.
The MineRL Diamond Competition: Training Sample-Efficient Agents in Minecraft(aicrowd.com)
2 points by bgalbraith 5y ago|0 comments
2.
by bgalbraith 10y ago
This is a valid point and a real challenge of brain-computer interface (BCI) technology. It is largely trying to help those who suffer from locked-in syndrome, where they really do not have any reliable motor control at all, including eye m
3.
by bgalbraith 10y ago
As stated elsewhere, this can actually be a very frustrating process. I lost a good chunk of my long weekend trying to build TF from source for CUDA 8.0 / cuDNN 5.1. Generally speaking the culprit is that the CUDA installers for Linux
4.
by bgalbraith 10y ago
Reinforcement Learning is one of the most exciting areas of research in machine learning and AI going on right now in my opinion. It is going to play heavily in creating AI that can make decisions in dynamic environments. A great introducti
5.
by bgalbraith 10y ago
Bradski is also the creator of OpenCV, an industry standard computer vision library.
6.
by bgalbraith 10y ago
IBM's TrueNorth chip is taking a much more neuromorphic design approach by trying to approximate networks of biological neurons. They are investigating a new form of computer architecture away from the classic Von Neumann model. TPUs a
7.
by bgalbraith 10y ago
You absolutely do not need a PhD for industry unless you want an R&D job in a handful of domains. A PhD is not simply learning more facts about a particular topic. It's an apprenticeship for conducting independently directed academ
8.
by bgalbraith 10y ago
CaptionBot doesn't really know what to make of Winged Doom: http://imgur.com/86uwKfa
9.
by bgalbraith 10y ago
You are correct. My initial response was a pedantic point about the semantic use of monopoly in this context, which isn't helpful. I would love it if AMD would care more about GPGPU, but they don't, and NVIDIA has little incentive
10.
by bgalbraith 10y ago
NVIDIA does not have a monopoly in the traditional sense. But yes, the have a de facto one because there is no viable competition. It's like saying MATLAB has a monopoly in academic research because so much of the code is written in it
11.
by bgalbraith 10y ago
What monopoly? You totally have a choice, it's just that NVIDIA made a large bet on GPGPU and it is paying off for them. You don't see AMD heavily pushing their cards for compute purposes or developing computational developer rela
12.
by bgalbraith 10y ago
Only overheated once, though I rarely had them operating continuously for more than a few minutes at a time.
13.
by bgalbraith 10y ago
Ideally, yes, we want to pre-train in a virtual environment using as close to the real model robot as possible. I worked on such a problem as part of my PhD research on mobile robots using the Webots simulator ( https://www.cyberb
14.
by bgalbraith 11y ago
This was totally unexpected. When I saw the Kickstarter update email in my inbox, I just assumed we were getting to jump the pre-order line. This was a great goodwill move on their part.
15.
by bgalbraith 11y ago
You are correct. I worked with EEG as part of my PhD research on brain computer interfaces, and it is a super noisy signal regardless of the headset. This makes is very hard to do anything reliably with it outside a pretty narrow scope.
16.
by bgalbraith 11y ago
These consumer-targeted devices are predominantly used to detect and act on changes in the relative power of certain frequency bands from rhythmic neural activity. These changes in activity are common across people, and don't require a
17.
by bgalbraith 12y ago
Very nice! I'm glad you found them useful. When I have time, I'll convert them and some unpublished examples into IPython Notebooks.
18.
by bgalbraith 12y ago
Related, a few years ago I wrote a series of blog posts with code and discussion on how to do some basic neural simulations in Python: http://www.neurdon.com/author/byron/ . This includes spiking leaky integrate-an
19.
by bgalbraith 12y ago
> unlike forums, people really enjoy mailing lists. I don't think I've ever met anyone, ever, who said they liked forums. I think it entirely depends on what the purpose of communication channel is serving. Mailing lists are tr
20.
Best Practices for Scientific Computing(plosbiology.org)
1 points by bgalbraith 13y ago|0 comments
21.
by bgalbraith 13y ago
The current state of the art for BCI ranges from 2-3 continuously valued "channels" using motor imagery (the method used in the article) or 1 channel of 2-32+ discrete choices using a sensory stimulus-based method such as event-related pote
22.
by bgalbraith 13y ago
They are using a technique called motor imagery, which looks for small changes in synchrony in the sensory motor rhythms (SMR). SMR is currently only capable of reliably detecting left hand, right hand, and combined foot imagined movement.
23.
by bgalbraith 13y ago
I agree with your sentiment about the lamentable, though typical HN response. However, it is totally in accordance with the mean audience of the site. Almost 50% of HN readers are under the age of 25 [1]. HN is a product of Y Combinator, an
24.
TechStars Boston Spring 2013 Companies Announced(techstars.com)
2 points by bgalbraith 14y ago|0 comments
25.
by bgalbraith 14y ago
The initial motivation for these articles - the government says we need more STEM students, but look how many underemployed PhDs there are! - is flimsy. The US does not necessarily need more graduate students, what it needs is more skilled
26.
Spaun, the most realistic artificial human brain yet(extremetech.com)
1 points by bgalbraith 14y ago|0 comments
27.
by bgalbraith 14y ago
I totally agree. The stores are attractively laid out, and I did manage to get a nice in-cup loose leaf tea infuser, but I disliked my entire experience in the store. The hard sell treatment I got was really unwelcome and the tea itself was
28.
by bgalbraith 14y ago
OK, sensationalistic headlines aside, this is what is actually going on. Using EEG, you can look for something called a P300 Event Related Potential (ERP). This is a positive deflection from the baseline activity in the brain signals approx
29.
by bgalbraith 14y ago
Like any language/platform, they both solve particular problems really well and then are OK or downright messy for the rest. I've developed applications for both platforms, and will more likely choose Django over Rails at the moment, but mo
30.
by bgalbraith 14y ago
The title is a little misleading. What they've done is effectively created hundreds of snapshots of neural connectivity, each focusing on how one particular region of the brain hooks into another. The goal is to make this data available so

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