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dancsi

163 karma · joined June 27, 2011

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dancsi··on What's that touchscreen in my room?
Actually, it is just serial under the hood, although electrically slightly nonstandard.
dancsi··on Ultrasonic Payments
This reminds me of how the student meal subsidies are implemented in Slovenia, and in my opinion it was quite unwieldy. You call a phone number and place your phone's earpiece on another device with a microphone. Then, some personal data is transmitted using (ultra?)sound. I remember it being quite unreliable, but that might be down to using the telephone network as the data carrier.
dancsi··on My Mathematics PhD research workflow: LaTeX notes and instant pdf referencing
I guess it will be easier to get it working with Zotero, as it's open source, and I think it even supports custom plug-ins.
dancsi··on You may not need Cloudflare Tunnel. Linux is fine
This looks neat, but I don't really understand how it works. I imagine that the DNS record is pointed towards the VPS, and the VPS just forwards all traffic to the actual server via wireguard?
dancsi··on Implementing Cosine in C from Scratch (2020)
The implementation of the __cos kernel in Musl is actually quite elegant. After reducing the input to the range [-pi/4, pi/4], it just applies the best degree-14 polynomial for approximating the cosine on this interval. It turns out that this suffices for having an error that is less than the machine precision. The coefficients of this polynomial can be computed with the Remez algorithm, but even truncating the Chebyshev expansion is going to yield much better results than any of the methods proposed by the author.
dancsi··on Improving Git protocol security on GitHub
Now they have added it for host keys.
dancsi··on Reverse Engineering an Unknown Microcontroller
Brought to you by the legend who managed to run Linux on an 8-bit microcontroller: http://dmitry.gr/?r=05.Projects&proj=07.%20Linux%20on%208bit
dancsi··on 2018 Mac Mini Review
Have you tried Kodi (kodi.tv)?
dancsi··on An invitation to category theory
It seems to me that you can select some of the largest EU countries by clicking the US flag in the top right corner.
dancsi··on Sublime Text 3.1 Released
Does somebody know which color scheme are they using in these screenshots?
dancsi··on Scientists Reverse Brain Damage in Drowned Toddler?
Maybe it is Slashdot?
dancsi··on The Calibre Content Server
It would be great if this feature was extended so that I can sync my books across different Calibre installations on different machines.
dancsi··on Taking the SCiO Food Analyzer Grocery Shopping
As for the last point, you are right, they are purposefully sending encrypted/encoded(?) data to your phone, which is then sent to their server. The raw spectrum will only be returned from the server if you have an even more expensive "researcher" account...
dancsi··on Avremu: An AVR Emulator Written in Pure LaTeX
The obvious next step is to emulate ARM within it, and use it to run Linux: http://dmitry.gr/index.php?r=05.Projects&proj=07.%20Linux%20...
dancsi··on KrebsOnSecurity is now up and hosted on Google Cloud
Akamai decided to stop hosting the site after a massive DDOS attack targeted at it
dancsi··on PyCNN: Cellular Neural Networks Image Processing Python Library
The name CNN is quite unfortunate, as it is most often used for convolutional neural networks.
dancsi··on Visual profiler for Python
Is it just me, or running programs under PTVS slows them down by quite a bit? Even when I turn off debugging, it still seems to be slower than when I run the program from the terminal.
dancsi··on Neural Networks in JavaScript
I would guess that it is very unsuitable, since for anything but the most trivial models, even those 'Python' libraries resort to highly-optimized (compiled) C subroutines, especially for the training part. Even then you require a highly nontrivial amount of time to train the network, especially if you are working with medium to large datasets.

Later on, when the speed is not so critical, you can do inference with those pretrained weights and your model implemented in Javascript.

dancsi··on Exploiting WPA2 in a City Wide Wi-Fi
I agree, handing out the same static "secret" key to millions of New Yorkers would make no sense at all.
dancsi··on LLVM 3.8 Release Notes
You can download a nice installer from here: http://llvm.org/releases/download.html
dancsi··on Get an unbiased opinion on if you should get out of bed
Doesn't work in the latest Chrome Dev, the dev console says that you need to use HTTPS in order to call getCurrentPosition().
dancsi··on TensorFuse – Common interface for Theano, CGT, and TensorFlow
Keras (http://keras.io) is a similar library, although only for TensorFlow and Theano...
dancsi··on Why I haven't given up on C++
Your second point depends, in fact, on whether buffer was allocated statically.
dancsi··on Visual Studio Code is now open source
It really depends on how large is considered large, since for me it crashes when opening a 60MB XML file...
dancsi··on Python 3.5.0
I am impressed that it upgraded cleanly over my previous installation of Python 3.5 release candidate.
dancsi··on Facebook Messenger XMPP is going away
Wow, Telegram looks great! Now if I only could convince all of my friends to switch...
dancsi··on Why Codeworkx ceased Development of CyanogenMod 10 for the Galaxy S3
In fact, as far as I understood, they do have an obligation, because the (GPL licensed) kernel requires them to release source code for some parts of the system
dancsi··on Why Codeworkx ceased Development of CyanogenMod 10 for the Galaxy S3
I agree, this is a great overview of the current and past events
dancsi··on Christmas tree made out of form elements (webkit)
Are you sure? I'm using Nightly 12.0a1, and it is very slow (1-2fps). It's still smooth in Chrome, though.