joshvm

69 ms·

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by joshvm 7y ago
The official Google charger (18W) is good, albeit about double the price. It's one of very few wall chargers that will power a FLIR Duo Pro camera without it boot looping. It's very picky about voltage and conks out if there'
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by joshvm 7y ago
High level computer science courses straddle several disciplines and you end up with weird stuff like computer vision being the purview of the electrical engineering department. EEs tend to know some of this stuff because a lot of matrix al
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by joshvm 7y ago
You can use it to estimate model uncertainty, Yarin Gal has some nice writeups on this: https://www.cs.ox.ac.uk/people/yarin.gal/website/blog_3d801a... (in this case using dropout networks as GP approximation
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by joshvm 7y ago
This would have been a perfect opportunity to cite the paper about the efficacy of parachutes: https://www.bmj.com/content/363/bmj.k5094
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by joshvm 7y ago
Even some of the cheaper Casios (non graphing) will let you calculate indefinite integrals and stats: https://www.amazon.co.uk/FX-991EX-Advanced-Scientific-Calcul... (£20) Pretty sure most of my physics degree class used an
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by joshvm 7y ago
The problem with Pinterest is that often the image looks exactly like what you want - eg search for diy furniture plans and a lot of links are Pinterest. That image came from a source somewhere , but Pinterest has better SEO than the sourc
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by joshvm 7y ago
As someone who works in conservation tech, there are a lot of issues. You need to have influence with policymakers (ie the people who can crack down on illegal habitat destruction, or agricultural policy). It requires a mixture of educating
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by joshvm 7y ago
Recaptcha is probably one you've actually interacted with, but even then you're mostly reinforcing existing predictions. But other applications within Google Maps are things like street number recognition, logo recognition, etc. W
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by joshvm 7y ago
Medium Unlimited?
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by joshvm 7y ago
Photogrammetry has been around for centuries. Post War, before digital imaging and fast computers, people would manually match features in images to derive the terrain models. https://ibis.geog.ubc.ca/courses/geob373&#x
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by joshvm 7y ago
Perhaps I should rephrase. If you're trying to effectively unit test a project, when do you decide you've tested enough? And are there any metrics which help support that? Coverage for example is a weak signal that you've at
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by joshvm 7y ago
Do you consider coverage an effective metric? I've got some code that has a test suite which is effectively a bunch of low level driver checks, plus a bunch of common example snippets and checks for eg empty inputs etc. Coverage gives
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by joshvm 7y ago
It's interesting that until recently, C&C held multi national patents on moissanite (silicon carbide) for jewelery. It seems like the patent specifically covers lab grown gems. These patents only expired in the last few years, and
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by joshvm 7y ago
Surprising that you can pay with a credit card to begin with. You could probably turn a profit by using a reward/cashback card (in a lot of cities that's easily $10k+ a year in spend). Though presumably that's $50 a month.. S
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by joshvm 7y ago
There is at least one simple reason for obsessing over efficiency for computer vision models. It takes a lot of bandwidth to transmit an image (even a small one) over the air, whereas text is cheap. A picture may be with a thousand words, b
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by joshvm 7y ago
There are now a few startups trying to make home/DIY anaerobic digesters that you can collect the gas from. Would be interesting for e.g. keeping a greenhouse warm year-round without the electricity spend. For example (I have no idea h
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by joshvm 7y ago
> During all phases of flight it communicates with passengers and appropriate air traffic control facilities regarding the new flight plan route and estimated time until landing. Which would suggest that if you need to be vectored to a r
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by joshvm 7y ago
Modizer definitely does https://apps.apple.com/us/app/modizer/id393964792
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by joshvm 7y ago
NIST https://physics.nist.gov/PhysRefData/ASD/lines_form.html Used a lot for calibration to match arc spectra to catalogue emission lines. Harder in general because these "toy" spectrometers have poor re
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by joshvm 7y ago
> In the case of digital astronomy using various opto-electronic devices to take the light and convert to charge (CMOS or CCD sensor or whatever else they use), I wonder how possible it is to essentially sum together lots of pictures one
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by joshvm 7y ago
Not abnormal, maybe a bad choice of phrasing there. Rather that during puberty people need more sleep and their rhythm shifts forward. This is exacerbated by poor sleep hygiene (eg screen use), but in general teenagers get tired later on th
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by joshvm 7y ago
The benefits are sleep, as the article says. I would guess this outweighs the risk that a few students use the opportunity to stay up longer. (although pre 8am seems excessively early to me - we started around 8:50) > I'm particular
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by joshvm 7y ago
Being consistent helps, that way you know whether its a technique problem or under/over-proofing. I live in a poorly insulated house and baking bread over winter is a pain. I ended up making my own proofing box - way cheaper than buyin
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by joshvm 7y ago
Tartine is a great book that will make you hate every almost perfect loaf that you bake. It's well written and well photographed, though it can be difficult to follow at times. Although Chad goes to an effort to explain how the recip
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by joshvm 7y ago
Tartine Bread, ISBN: 0811870413 There are a few in the series, but get the first one. https://www.amazon.com/Tartine-Bread-Chad-Robertson/dp/08118... (not an affiliate link)
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by joshvm 7y ago
> I’m not even sure where the $200 comes from. "With only a $150 hot-air soldering tool, a $40 microscope, and some $2 chips ordered online, Elkins was able to alter a Cisco firewall in a way that he says most IT admins likely would
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by joshvm 7y ago
It depends a lot on individual departments. Most astro groups I've been in have had very competent sysadmins who aggressively lobby for fault tolerance and assume that the university proper is incompetent (the very best kind of angry g
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by joshvm 7y ago
I've done this with OpenVino and it works well enough. There are some gotchas with Onnx, some layers break or have weird bugs (upsample in particular used to be a problem).
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by joshvm 7y ago
It may be more like one in 2^24. The first 24 bits are allocated for other things, so it depends how the address is randomised (eg if you keep the manufacturer bits). Though if you report a totally random address it probably will be closer
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by joshvm 7y ago
I was always amazed at how few people used the library at university. Lots of people used it as a study space, but hardly any actually took out books unless it was an urgent loan for something. Given how expensive textbooks are, it's w

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