rocqua

73 ms·

931.
by rocqua 4y ago
edit: My argument was based on the naive implementation of matrix-vector multiplication. But, as explained here [1] there are more efficient algorithms for small-ish matrices that flip this around. For bigger matrices it remains better to d
932.
by rocqua 4y ago
That is indeed almost the same as int mat[3][3] The biggest reason people use the separate array of pointers is for very quick row swaps. Often comes up in matrix operations when trying to solve systems or put matrices in triangula
933.
by rocqua 4y ago
Is it possible to 'object' to these legitimate interest? Is it possible for a website to say, if you object to these, just don't use our website/service?
934.
by rocqua 4y ago
In this case, the 'dystopian' situation is not bad, if you consider tracking a bad (lets say 'evil' for exagerated effect) thing. It means that companies that want to do 'evil' are forced to ask their customers
935.
by rocqua 4y ago
Many of these cookies settings can be 'unset' by browser-settings. The HTTP server can set cookies all it wants, but if your browser throws them away between sessions, they can't be used to track you between sessions. (They s
936.
by rocqua 4y ago
What are these 'legitimate interest' things, and is it even possible to object to them, legally speaking? I have never seen these I believe, unless you mean 'analytics cookies' and 'functional cookies', which I
937.
by rocqua 4y ago
Very true, and I think this is generally why C 'does it right'. But there are caveats. Firstly, almost no-one actually creates their matrices as literals. Instead they are build dynamically an usually incrementally. Nevertheless,
938.
by rocqua 4y ago
The thing is, what works really well for python is not just easily portable features. Having a REPL and things like notebooks is great. Having pip install. Having a syntax that is very beginner friendly, especially for reading. Just making
939.
by rocqua 4y ago
Why would that force collapse? I would almost expect that the lack of communication over those distances forces _more_ uncertainty (i.e. a wider probability distribution) rather than less uncertainty.
940.
by rocqua 4y ago
I found your suggestive example on wikipedia earlier. Sadly it was no more rigorous than your example, nor did it cite sources that have more rigor. I suspect the additional rigor is mostly a matter of showing why 'special knowledge&#x
941.
by rocqua 4y ago
The predictive planning _could_ be done with AI that tries to automatically infer what will be bought. However, it could also be done by a (maintained) list of hard-coded rules. If it was some form of automatic inference, perhaps one could
942.
by rocqua 4y ago
Can you give an example of two computable reals who'se equivalence is undecidable? I get the theory behind why the problem in general is not decidable, but I would love a constructive proof by example.
943.
by rocqua 4y ago
Its because the real numbers are actually quite weirdly defined (for good reasons). One easy definition of the reals is that each 'convergent' sequence of rational numbers defines a real number. Two sequences define the same real
944.
by rocqua 4y ago
If you claim a construction is obvious and dispells confusion, that construction should not have any readings that are obviously wrong. Sure, charitable readings of informed readers will find it obvious. But less informed readers, or skepti
945.
by rocqua 4y ago
Besides the equivalence, computable functions are about more than just decision problems. Computable functions are a subset of N -> N. I suppose the confusion is that undecidability (very similar to uncomputability) regards decision prob
946.
by rocqua 4y ago
In some sense, that is lower management. Middle management sits between the people who connect with the work floor, and the people who actually make decisions. These positions do seem ripe for AI replacement.
947.
by rocqua 4y ago
That sounds like truly valuable ERP, and largely devoid of AI.
948.
by rocqua 4y ago
Have an AI optimize schedules and 'general utility'. Then build a second AI that explains why the previous outcome was best. If you have results that actually are better scheduling than done by a human, with plausible explanations
949.
by rocqua 4y ago
Why does it work worse in higher latitudes and closer to dawn and dusk? The shadow of the tip of the stick will always move in a straight line from east to west right? At high latitudes I could imagine the shadow gets so long that finding t
950.
by rocqua 4y ago
The shadow measures not just the horizontal angle change of the sun, but also the vertical angle change of the sun. A very common way to measure time is to reference the horizontal angle change w.r.t. noon. In that case you need two moments
951.
by rocqua 4y ago
I was thinking HN is afraid of tools that cheapen it's own work. Whilst artists are afraid of tools that cheapen their work.
952.
by rocqua 4y ago
Images have much less of this problem. They are not the raw result of cognition. So changing images doesn't change someone's voice. Instead images are always interprative. The camera doesn't capture what the eye sees. Often i
953.
by rocqua 4y ago
One bif difference between image editing and text editing. I can see the effect of a change to an image at a glance. Judging whether it is a much worse outcome takes seconds usually. With wholesale changes to text, seeing if it inadvertentl
954.
by rocqua 4y ago
Do we want that though? I personally believe copyright as implemented today is harmful. The fact that code largely is able to dodge this could be seen as arguing we should be laxer with copyright, rather than arguing for strict enforcement
955.
by rocqua 4y ago
Supposedly modern RAM already has built in ECC because of rowhammer etc. It's just that they don't report errors back like true ECC ram does.
956.
by rocqua 4y ago
The article does state that the Japanese system runs at a massive loss.
957.
by rocqua 4y ago
The article takes the premise that HSR should go 320 kph (200mph) and then explains why that is infeasible in many places. The article says much less about rail at 200kph (125mph). Which might serve to replace airplanes. Especially once CO2
958.
by rocqua 4y ago
Links to the research?
959.
by rocqua 4y ago
Note that the first steam engines in productive use were at coal mines. This is because they were incredibly inefficient, and needed huge amounts of coal. Really the only way to solve the transport problem was to not have to transport the c
960.
by rocqua 4y ago
Why was that infrastructure vulnerable to a nasty ice storm? It is possible to build infrastructure that can easily operate in those conditions. From what I heard there were plenty of warnings, but EPCOT either refused to demand weather-har

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