3453 posts • joined 24 Apr 2007
Re: Occam's Razor: If the first one was a burp going southwards...
Maybe the black hole's meal was heavy on beans, always produces a lot of gas...
I'd also better be going
And then some people wonder why I insist on quality keyboards
waterproofing, in particular is important.
although I also like the heft of the ancient IBM PC keyboards. Excellent for knocking sense into certain users, or percussive maintenance in general
Re: Marvin the robot? Shurley Shome Mishtake
"Here I am, brain the size of a planet, and they ask me to pick up a piece of paper. Call that job satisfaction, cause I don't"
Worse still, we'll probably end up with a load of self-satisfied doors and over-enthusiastic computers named Eddie, not to mention the drinks dispenser which always produces a cup filled with a liquid which is almost, but not quite, entirely unlike tea.
If they are aliens
THEY ARE APPARENTLY TRYING TO COMMUNICATE IN BRIAN BLESSED'S STYLE
Adding more hay does not make finding needles easier
as I have often said to students in Pattern Recognition. A very good magnet is called for instead. Same principle applies here
What about device drivers?
I have heard of device drivers for certain cameras working under ASCOM being borked by the fixes to WIN 10, quite apart from any performance hit incurred by what can be very I/O intensive work during capture and processing of astronomical images. Are there other instances of device drivers failing?
Sorry, couldn't resist. I'll get me coat. The one with "Get thee to a punnery" in the pocket, please
Re: But how do they spread fires?
Black kites are very, very adaptive (much like buzzards). I have seen them scavenging in Tokyo and Kampala, but also catching fish in a lake near mount Fuji. They seem to be highly opportunistic and intelligent, so I wouldn't put it past them to have learnt how to spread fire to increase their chances of an easy (or even cooked) meal.
Re: Science is awesome...
Jack Daniels is a Tennessee sour mash whiskey (it says so on the bottle). As I heard it, when whisky making in Scotland changed Irish and American distillers wanted to distinguish their product from what they saw as an inferior way of making whisky, by adding an 'e'. Personally, I all for single malt whisky, but that may just be me,
In defense of Facebook ...
Nah, never mind, can't be bothered, or think of a really good reason, for that matter
Re: study highlights major issue
Very good points. I find the fact that they find a threshold effect very curious. That is not what I would expect from simple physics. I am also always deeply suspicious of binning data into groups (<2.5mG; 2.5–3.6mG; 3.7–6.2mG; and ≥6.3mG). Why these groups? The ranges are not evenly distributed, which makes me wonder if they were chosen to have the same number of subjects in each group. Did this lead to one group differing fro the others? Were there other life-style differences between the groups? Why not do regression analysis?
I am not saying there is no effect, but I do wonder about the way the analysis has been done. I have had many run-ins with medics about their tendency to classify things into distinct groups, when in reality there is a continuous spectrum. It took me a while to convince dermatologists I was working with that hand eczema should not be classified into 6 distinct classes ranging from 0 (clean) to 5 (very severe), but that it is a continuous scale, so I should not design a classifier for them, but do regression analysis instead (which might indeed say the severity was 4.5).
It is curious how these (otherwise very successful) deep-learning-based algorithms fail in ways that are radically different from methods based on hand-crafted features (which have their own set of problems), or for that matter the human observer. This suggests to me that deep learning as it is implemented now is not a very good model for the way humans learn, because the adversarial examples shown in the paper would never be mistaken by humans. In the human brain there are structures that where selected for over hundreds of millions of years of evolution (itself an optimization or learning process). This selected an architecture which in turn allows adaptive learning of features. It will be interesting to see how we can learn or design better architectures for these deep networks, or in general machine learning algorithms
But at least most of us ...
don't think digital watches are a pretty neat idea
Doffs hat (black fedora, once more) to the late, great Douglas Adams
I am surprised ...
Nobody asked: "Is it safe?"
I'll get me coat
For bigger matrix multiplications single precision floats often lead to unacceptable accumulation of round-off errors. I am surprised no double-precision figures are given. I would also be very interested in the power drain of these TPUs. In robots with a limited battery capacity, you really need to think hard about power draw from the computers (and yes, I know these won't be available for us any time soon). There are some excellent deep-learning based stereo methods, but they do require a GPU, so we are looking at hand-crafted methods which hopefully give similar accuracy, whilst running on a Raspberry Pi (not sure that will work, of course, but if successful it will seriously reduce power issues).
NASA, ESA and all those other organisations just keep on producing such exciting stuff!
Bowmore is very nice, but I am also quite partial to Talisker's Port Ruighe. Slightly gentler on the throat, which might be beneficial. Some smoked Scottish salmon to go with it (only for the correct balance of omega fatty accids, of course) would go down nicely as well
We certainly live in interesting times ...
especially with our growing ability to control uncertainty
Sorry, couldn't resist. The one with Erwin Schrödinger's "What is Life?" in the pocket (fascinating read), please!
This is a perennial problem
I wonder why this is news, as this issue has been known under many guises for a long time. My own code might be provably correct, but what about the compiler, libraries or even the OS it is running on? For that matter, what about the hardware (Pentium floating point bug, anyone)? I remember having to create quite a few workarounds for compiler and run-time library errors in image processing software I developed in the past. The problem with workarounds is that they might actually bork the code when the error in compiler or library is fixed. Luckily these were DOS systems not connected to the internet, so the attack surface consisted mainly of floppies thoughtless users inserted into the system, but the fundamental issue remains: The security of your code depends on that of many others.
Re: UK had IEE not IET
The IEEE is a world-wide organisation. I am a senior member (which essentially means you have worked in the field long enough for them to send you a brass plaque, not that you have done anything really special), but have never lived or worked in the USA. I don't tend to call myself engineer, so could safely go to Oregon, I suppose.
I remember pointing out Mars to my boys years ago, explaining how they could tell it was a planet because it wasn't twinkling, and how to recognize it was Mars by its red colour. A thought struck me and I told them two robot cars (Spirit and Opportunity back then) were driving around on that little dot in the sky, and their jaws dropped. They were already well beyond the 90 days at the time. Amazing to think Opportunity is still going strong. Excellent engineering!
Re: Kerbal Space Program
I thought it was a Kaotic ABort Of Orbit Manoeuvre
"It is a mistake to think you can solve any major problems just with potatoes."
As the Silastic Armourfiends of Striterax could tell you
Doffs hat (black fedora again) to the late, great Douglas Adams
DynamicFaceID a.k.a. Haka-ID (TM) anyone?
As a variant on Face-ID and drawing a complex pattern, why not require users to pull a face or sticking out a tongue (like the faces pulled at the end of the All-Blacks' Haka) to unlock their phone. It would combine user name (the biometric of face recognition) with a password (the complex sequence of movements). Should be a lot safer than just boring old face-ID.
The best bit of course would be seeing people pulling weird faces and sticking out their tongues to open their (no doubt very expensive) phone.
I wonder if I can get a student to develop something like this as a thesis project.
Good iris recognition systems are pretty secure. You can easily test the presence of a real eyeball in two important ways. If it is a printed digital image of an iris, the regular printing pattern will leave easily detected spikes in the Fourier spectrum. This doesn't work on old-fashioned prints from negatives. However, briefly raising light levels (e.g. using the flash) will make the pupil contract, which is fairly trivial to detect. I also wonder whether the saccade-fixate motion of the eye can be detected as evidence of a real live face, although that might be mimicked easily.
Very interesting stuff
We may actually start developing software to handle these large images from ASKAP and later SKA in the near future, in a collaboration between the Kapteyn Astronomical Institute and the Johann Bernoulli Institute of the University of Groningen. In particular, we want to develop automatic methods for finding interesting faint objects in the huge mass of data. Huge challenge, and therefore great fun!
Re: Perfect climate
Perhaps they aim to conquer only those regions with a perfect climate, and settle there.
Maybe that is their cunning plan
A pity Megalodon is extinct
It might have been the right fit.
On second thoughts, it is perhaps a good thing that Megalodon went extinct. Even though they were probably deep ocean sharks, a predator with a mouth that fits six humans with room to spare could put people off bathing in the ocean.
Lovely Friday treat. Especially after a week in which you feel like implementing a number of database normalization warnings yourself.
Re: I'm going to suggest (@Cederic)
and maps to shit creek? or are those only free without the paddle option?
Will certainly have a go at applying tools we develop for BIG images (Gpixel to Tpixel range) on those. Great first-light image too.
So how many points do you score in intergalactic bar billiards if you pot one supermassive black hole into another?
I'll get me coat
Re: She's deluded
"Poor bloody AI doesn't stand a chance."
Not sure about that. A rule-based system could learn rules like
IF (post.poster.name = "Boris Johnson") OR (post.poster.name = "Amber Rudd") THEN
But somehow I think they don't want that kind of AI
Re: Count me unimpressed
Whenever I buy some product, most recently a 6V sealed led acid battery for my telescope, all these "AI" methods from Amazon and the like keep trying to flog more sealed led acid batteries. Same with the tumble dryer I bought online: endless tumble dryer adverts. Same again when I bought a 100-400mm zoom lens: they keep trying to flog more of exactly the same type of lens. Now, if the AI had suggested lenses complementary to the 100-400 (and not the 18-55 kit lens, which someone with a 100-400 zoom either has, or has already replaced by something better), that would show a modicum of intelligence. As it is, I am not impressed.
Youtube has made some interesting recommendations, I must say. It's latest one of The Dead South (In Hell I'll be in Good Company) did put a smile on my face
Needed that after a tough week. Need one of those too -->
But that can wait a little longer
Maybe they can turn things around if they get just the right, hyper-intelligent shade of blue.
Doffs hat (black fedora, once more) to the late, great Douglas Adams
Re: Bomb Testing
My thoughts exactly. However, on second thoughts, you could test the ignition circuitry detached from the detonator quite safely. Otherwise it would indeed be a matter of "here and there he rests in pieces"
I wonder if filtering the screen data sent (or adding some noise) would scramble the data sufficiently to block this attack.
Why does Reacher Gilt suddenly spring to mind?
Sorry, couldn't resist. The one with Going Postal in the pocket, please
I'm with Marvin
"I'll think you'll find reality is on the blink again"
And this is indeed what we find
Must rush, the one with the Hitchhiker's Guide to the Galaxy cassette tapes in the pocket, please. Doffs hat (black fedora today) to the late, great Douglas Adams.
If somebody gives me a "smart doorbell" for Xmas
I will unfriend them with extreme prejudice
Ring is like an earthly outpost of Sirius Cybernetics, by the sound of it
You're biting it wrong!
Bite marks are also distinctive, and biting can be a healthy and natural channelling of aggressive instincts in deeds of senseless violence (perfectly natural behaviour for a Vogon), especially when it refuses to open by facial recognition.
Sorry! I really should get me coat.
May I suggest
the iSmell ID option?
On second thoughts, maybe not
I will just point at this collection ...
if ever my missus complains I have too many cameras. Hey, I have just 2 regular DSLRs, one astro-modded one, and three different planetary CMOS cameras (one monochrome of solar H-alpha, one monochrome hi-res for solar Ca-K and white light, and lunar, and one colour for planets).
I could also just count her shoes again
Whether it's news or not
I'll drink to it
Sorry, couldn't resist
So now we have to go back, and to other comets. Don't we?
Of course we do, but bring a thermos of hot tea, it's cold up there
Seriously though, marvellous boffinry!
Loved the use of the "Beware of the Leopard" bit. Interesting rhythmic devices that counterpoint the surrealism of the underlying metaphor ..
I'll get me coat
Doffs hat to the late, great Douglas Adams
Where's Simon when you need him?
Clearly a situation that calls for a BOFH-modded cattle prod, or a stairwell accident, or something weird happening to the elevators, or a freak Halon incident (triggered by a cocoa powder sensor an Arduino and some actuators?), or any solution involving quicklime and a roll of carpet.
Fingers crossed for all their runs
otherwise the term "terminal velocity" might get a different meaning
Big thumbs up for the attempt
Re: Cool, but why?
I am certainly going to show this to my kids, if they haven't found it already. One is definitely into engineering and will love the outrageous fuel pump, all by itself, the other is more into football, but can be impressed by other things