numbol | 4 months ago | on: Stochastic computing
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Youtube have great catalogue of the lectures and other educational material, so it is still kinda irreplaceable
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for example, Logtiech G502: " Dual-Mode Hyper-Fast Scroll Wheel
Unlock the scroll wheel for hyper-fast continuous scrolling to spin quickly through long pages, or lock it down for single click precision scrolling. The weighty, metal wheel delivers confident, smooth and satisfying control for either mode. "
https://www.youtube.com/watch?v=aANF2OOVX40 ( Interstellar Mouse ^^ )
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Were there any serious attempts to build hardware 60-based system?
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numbol | 6 years ago | on: Computational photography from selfies to black holes
In extreme cases, it even not "photo" as some information about photons recieved by some optic system with noise reduction afterwards. Not, it just pictures, based on recognised faces, objects and stars. And I don't know why, but I feel panifully bad about it. It is not approximation of world-how-it-is, but some expectation about world-how-people-want-it. It can recognise constellation based on few stars, and will draw nice picture of great stary sky, but will delete starlink sattelite, meteora or supernova as some unexpected noise.
[please forgive my grammar]
1. There is noisy computers which can work despite or because some unreliable part. Neural netwroks are quite ok with it for example, so some people speculate that it will be possible to build specialized noisy circuits for specific networks. 2. There is stochastic computing, in which complicated numerical functions represented as probability density distributions (?) 3. And then there is probabalistic computing, when state randomly updated in accordance with some "temprature". 4. And finally there is randomized algoritms, which are closer to classical computer science but with some stream of input. Howver, people like Avi Wigderson who succesfully removed the "random" parts of those algoritms.
Plus there is funny things with non-associativity of floating-point numbers which can lead to non-determinism when the order of execution (summation for example) is arbitary, which can lead to funny results. But because neural netwroks are robust to noise to some degree, it will still work.
And the stuff which done by Avi Wigderson requires that computers work in determinstic way (except of that random stream), so it will not be very compatible with unreliable noisy computations. However, it seems that stochastic, probabalistic and noisy computations could be combined.