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aptitude_moo

47 karma · joined October 2, 2022

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aptitude_moo··on AdFection: Targeted ads turned into a pipeline for zero-click mercenary spyware
I was looking for this comment. I'm wondering the same. Are ads just iframes that could have js? Therefore this is basically a zero click js (is this the first?) that just happens to be distributed via ads?
aptitude_moo··on The early History of the Singular Value Decomposition (1993) [pdf]
For example, to create the image from the radar pulses, you can do time-domain backprojection, omega-k and others. Then when comparing images of different dates you can do SAR interferometry, then use numerical methods, iterative algorithms. Although I'm thinking this may be called signal processing instead of computer vision.
aptitude_moo··on The early History of the Singular Value Decomposition (1993) [pdf]
I'm not the person you are replying to but I work in image processing of SAR radar images and it's mostly ML-free (thankfully because I don't enjoy it). I dont know which other areas still work with these things
aptitude_moo··on This map is not upside down
Just to clarify, it might be official but I'm argentinean and I never saw a map like this with south on top
aptitude_moo··on Nuclear fusion: WEST beats the world record for plasma duration
I don't know much about this but I assume that the tritium will be created somehow while fussion is done [1]

[1] https://en.m.wikipedia.org/wiki/Deuterium%E2%80%93tritium_fu...

aptitude_moo··on Twenty Years of Valgrind (2022)
> As a result, I don’t have much use for Memcheck, but I still use Cachegrind, Callgrind, and DHAT all the time. I’m amazed that I’m still using Cachegrind today, given that it has hardly changed in twenty years. (I only use it for instruction counts, though. I wouldn’t trust the icache/dcache results at all given that they come from a best-guess simulation of an AMD Athlon circa 2002.)

The few times I used the cache simulator and compared it to (Linux) Perf I found reasonable results. Someone can recommend a better cache simulator?

aptitude_moo··on How many photons are received per bit transmitted from Voyager 1?
Weird, it works for me. You can use any of the other published links in the sibling comments. The name of the paper is "Quantum Limits in Optical Communications" by Banaszek
aptitude_moo··on How many photons are received per bit transmitted from Voyager 1?
Very interesting, I studied telecommunications and I thought the Shannon limit was the absolute limit. I wonder now if this Gordon Holevo limit is applicable for "traditional" telecommunications (like 5G) as opposed to photon counting a deep space probe

EDIT: This paper seems to answer my question [1]

[1] https://opg.optica.org/directpdfaccess/8711ab35-bbc2-4d51-8e...

aptitude_moo··on A Woman Who Spent Five Hundred Days in a Cave
Thank you!
aptitude_moo··on A Woman Who Spent Five Hundred Days in a Cave
Do you have more info? I googled quickly with the "fake" and "staged" keywords and found nothing
aptitude_moo··on Earthquake in Japan yesterday may have shifted land 1.3 meters
Obligatory XKCD: https://xkcd.com/2029/
aptitude_moo··on Light can be reflected not only in space but also in time
Not entirely sure what time reflection is, but I'm pretty sure it doesn't mean anything related to anything going backward in time. Here I think it's explained better https://spectrum.ieee.org/time-reversal-interface

Edit: Now that I've read a bit more, it seems to me this is just reflecting light back but "all at once". Like if a light signal were a train going right and the first wagon is A (>>>[D][C][B][A]>>>), a normal mirror would make it bounce and the train would go back going left and wagon A arrives first (<<<[A][B][C][D]<<<). A """time reflection""" would make the train return backwards and wagon D arrives first like this (<<<[D][C][B][A]<<<). I understand it is like reflecting each wagon at the same time so the train comes back reversed. This looks cool but I think the article deliberatively makes it confusing so it sound like the movie TENET when it starts talking about entropy

aptitude_moo··on Why the original transformer figure is wrong, and some other tidbits about LLMs
I find this one as the most complete [1] [2]

[1]: https://github.com/ajhalthor/Transformer-Neural-Network/blob...

[2]: https://www.youtube.com/watch?v=Nw_PJdmydZY&list=PLTl9hO2Oob...

aptitude_moo··on Stellarium 1.0
The web version is a bit of a different project. Make sure to try the desktop version!