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pvitz

793 karma · joined October 22, 2014

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pvitz··on The Princeton Companion to Applied Mathematics
Oh no... I used his work on nearest positive semidefinite matrices and liked to read his blog. In my opinion, he was very good in explaining his research.
pvitz··on EURISKO Lives
The code can be found here: https://github.com/white-flame/eurisko/blob/main/src/EUR
pvitz··on Bottle Plotter
Great project! It could be the bigger brother of the egg bot: https://egg-bot.com/
pvitz··on Monte-Carlo graph search from first principles
I can't speak for this use case, but in many other places, one isn't even using a PRNG, but rather Quasi-Monte Carlo techniques with no randomness at all. Monte Carlo doesn't need randomness, but a good coverage of the search space.
pvitz··on Poll: Can you visualize details with your eyes closed?
What has always fascinated me about playing music in my head is that it can be background music to my inner voice, i.e. they seem to be on different channels.
pvitz··on Kolmogorov Neural Networks can represent discontinuous functions
Haven't downvoted, but the "continuously" in "continuously differentiable" refers to the derivative and not to the function itself. (Also, from differentiable follows continuous, but not the other way around (sufficient, but not necessary).)
pvitz··on Penn and Teller's Lab Scam [video] (1990)
> Knowing how it is done makes it _more_ impressive to me.

I agree to an extent: The choice of the number in his ACAANs makes me always wonder how he would recover from a "bad" spectator.

What always impressed me even more was Tamariz' handling of the Mnemonica stack. For example, he could ask to name a card and could immediately bring it to the top of the stack with one cut in a second.

pvitz··on Someone is trying to rebuild Friendster
When I hear that site's name, I am always immediately reminded of Nemester: https://zapatopi.net/nemester/
pvitz··on Google Podcasts to shut down in 2024
And the acquisition of Doubleclick was very helpful for that product...
pvitz··on Time Doesn’t Belong to Physics – When Bergson met Einstein
However, we are not talking about Bach, but about Einstein's knowledge of epistemology and that he certainly was well versed in that subject and didn't make such a basic mistake as you alluded to.
pvitz··on Time Doesn’t Belong to Physics – When Bergson met Einstein
Einstein knew the works of Schopenhauer quite well and for sure didn't make this mistake. Furthermore, most of the Physicists back then were most likely influenced by Kant or Mach (Einstein called himself his student in letters to him).
pvitz··on Game: ASM – Das Computer-Spiel (The Director's Cut) released
This doesn't look unusual. I count 13 commands and Indy 3 had e.g. 14. If my memory serves well, that was quite normal.
pvitz··on Plan for 55,000-acre utopia dreamed by Silicon Valley elites unveiled
Sealand
pvitz··on Changing my relationship with GitHub Copilot
This reminds me of -- I think -- Arthur Whitney, who prefers to program in C in four windows of notepad.exe. If it works for them, why not?
pvitz··on An abandoned cabinet full of Kodachrome slides in San Francisco
Someone brought either the cabinet or the content of it to the collector. Most likely, they are the source of the number of cabinets.
pvitz··on The IPv6 mess (2002)
Thanks, I noticed the same in my second edit. Also, Christmas vacation and - to a certain extent - the summer months are quite visible.
pvitz··on The IPv6 mess (2002)
Yes, this looks quite likely given the peaks consistently on Saturdays (at least at the end of the series where I checked it).
pvitz··on The IPv6 mess (2002)
If you zoom in on the graph, you can see oscillatory behaviour / noise. Would anyone know where this is coming from? It is almost like they are measuring an analogue signal and have a 50/60Hz hum on it...

Edit: I just remembered seeing something similar related to rounding a floating point signal once. Maybe that is the reason behind it.

Edit 2: Peaks seem to fall on Saturdays, so maybe this corresponds to people turning on their computers/routers at home more often on the weekend.

pvitz··on How to find a street in 2 minutes [video]
Not exactly US-specific, but Streetview isn't available everywhere. How would he have found the exact location without it? Would be quite interesting!
pvitz··on How to use a Python multiprocessing module
Program synthesis through optimal control or directly through algorithms like A* sounds fun and interesting. If I may, I would suggest to either comment your code or add more details to your README.md, because it is currently quite difficult to understand what exactly is being done here and how.
pvitz··on Parsing time stamps faster with SIMD instructions
What is actually the task here? Parsing is clear and it looks like one has to sum all parsed timestamps, but what does the additional comment about the shortest time mean?
pvitz··on Mullvad Leta: A search engine used in the Mullvad Browser
I guess that you couldn't be fingerprinted by Google.
pvitz··on Archive of medieval books and manuscripts discovered in Romanian church
It is a pity that Aristotle's second book of "Poetics" doesn't seem to be among the books found there.
pvitz··on DeepDoctection: Document extraction and analysis using deep learning models
Thanks for the reply, good to know that!
pvitz··on DeepDoctection: Document extraction and analysis using deep learning models
I would like to extract text from approximately 2000 PDF files (machine generated, not scanned) in which the layout can be different on a file basis. Some have normal paragraphs, others two columns and even three columns. All contain tables, but I am not interested in them. Do you know a good (semi-)automatic solution for this?
pvitz··on ‘Alien calculus’ could save particle physics from infinities
The capital delta acts like a "normal" derivative if you want to say so. In eq. 4, you can see the product rule which is one of the most defining features for any sort of calculus. However, I must admit that this summary will take me a lot of time to digest...
pvitz··on ‘Alien calculus’ could save particle physics from infinities
Écalle's own summary can be found here: https://www.imo.universite-paris-saclay.fr/~jean.ecalle/fich...
pvitz··on Privilegium Maius
I only know Peter Mitterhofer...
pvitz··on Deep Learning Foundations to Stable Diffusion
I have recently read "The Little Learner" and was quite amazed how much I knew already just because I know APL/J. With the right libraries, these vector languages would be perfect for neural network / deep learning tasks.
pvitz··on Privilegium Maius
This might be of interest to you (in case you haven't seen it already): https://steiermark.orf.at/stories/3200851/
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