yshklarov

7 ms·

1.
by yshklarov 18d ago
Thanks! To expand a bit: It's clear from the writing that the formatting is an intentional stylistic choice. My point wasn't about aesthetic preference. I meant precisely what I wrote. Language evolves and orthography evolves. We&
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by yshklarov 18d ago
Great article, but the lack of sentence capitalization makes it unnecessarily difficult to read. Apologies if this comment is off-topic, but it really is quite egregious, and since the article was submitted by the author I presume they are
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by yshklarov 24d ago
We love to do work that is useful and valuable to others, and we often form our identities around this. But identities are in large part socially constructed, so many of us need the recognition of others for our contribution. And it can be
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by yshklarov 24d ago
That observed fatality rate, 2, is too low to give a precise estimate of the mean. If we assume fatalities follow a Poisson process, then it's plausible (at 5% significance level) that the true expectation is only 0.36 deaths, not 2. S
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You don't have to if you don't want to(scottsmitelli.com)
9 points by yshklarov 7mo ago|1 comments
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by yshklarov 8mo ago
It sounds like you're looking for problems in probability theory (rather than statistics). I don't have anything specific for you but you might have better luck searching for problems, puzzles, and examples in probability. For ins
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by yshklarov 9mo ago
It has nothing to do with being easier to work with (at least, not in this day and age). The biggest reason is that minimizing sum of squares of residuals gives the maximum likelihood estimator if you assume that the error is iid normal. If
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by yshklarov 10mo ago
We have no evidence that the lead in solder makes its way into the body of the person doing the soldering (and we've been at this for quite some time!). The concerns about lead in solder are due to the environmental hazards of electron
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Letter to a Young Person Worrying About AI(commoncog.com)
4 points by yshklarov 1y ago|0 comments
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Etching silicon wafers to make colorful Rugate optical filters (2020) [video](youtube.com)
1 points by yshklarov 1y ago|0 comments
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by yshklarov 1y ago
Really, do you think they've somehow fallen out of favor? If so, that's a surprise to me. In any case, they are a bit more advanced, and out of scope for the undergraduate course I linked to.
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by yshklarov 1y ago
As everyone in this thread is sharing links, I'm gonna pitch in, too. This lecture by Dennis Freeman from MIT 6.003 "Signals and Systems" gives an intuitive explanation of the connections between the four popular Fourier tran
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by yshklarov 1y ago
I love the visualization! Thanks for sharing. How do you compute the fractional FT? My guess is by interpolating the DFT matrix (via matrix logarithm & exponential) -- is that right, or do you use some other method?
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by yshklarov 1y ago
That's pretty neat. I wonder how it works. It's not obvious to me at all how to build something like this, as the program doesn't know the sequence in which the player will reveal the tiles. I also once made my own variant of
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by yshklarov 1y ago
For those who don't recognize the name: Linus Åkesson (lft) is the one who made "Nine", that C64 demo with the wizard and nine sprites that was popular a few months ago ( https://news.ycombinator.com/item?id=42
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by yshklarov 1y ago
Apparently, this is a game that two can play. Niklaus Wirth, the creator of Pascal, had this to say in turn: "From the point of view of software engineering, the rapid spread of C represented a great leap backward. It revealed that the
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by yshklarov 2y ago
This is by no means unique to programming. Many areas of knowledge are less accessible to those who don't speak English, and much more so to those who don't speak any of the dozen major languages. Because of this, many people will
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by yshklarov 2y ago
To nitpick with the grammar in the quote: It's capable of measuring to the accuracy of 120 μm at 1000 km. So it cannot accurately measure the diameter of a human hair (which ranges from around 20 to 200 μm) at that distance, but only
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by yshklarov 2y ago
Not at all -- the usability and design are fantastic! (On desktop, at least.) What, specifially, do you find awful here?
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by yshklarov 2y ago
If different components of the dataset have different units, I would argue that it is a prerequisite of clustering to first specify the relative importance of each particular unit (thereby putting all units on the same scale). Otherwise, th
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by yshklarov 2y ago
Actually, scale-invariance only refers to scaling all dimensions by the same scalar (this is more clearly specificed in the paper linked by the article, page 3). For arbitrary scaling on each coordinate, of course you're correct, i
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by yshklarov 2y ago
> This tells me a lot about how a teacher thinks of students. This is quite an uncharitable perspective!
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by yshklarov 2y ago
I wouldn't count on it -- LLMs make lots of errors in reasoning, and errors in solutions are very frustrating to most math students.
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by yshklarov 2y ago
Not providing solutions is quite common in math textbooks, in part because professors (including the author!) want to be able to assign problems from the textbook to their class, and in part because making solutions is a lot of work! Outsid
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by yshklarov 2y ago
Check the "About" page. It's a self-published, non-peer-reviewed paper, written by a distinguished academic researcher.
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by yshklarov 2y ago
Could you elaborate?
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by yshklarov 2y ago
I agree that good definitions are important, but I don't know if this is a fair criticism (even if the sentence were wrong) -- the purpose of this page is to clarify a common point of confusion, rather than to lay out a carefully forma
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by yshklarov 2y ago
From what I saw as a recent grad student in probability, most texts do define a random variable to necessarily map into the reals, or the extended reals or perhaps a subset thereof, or occasionally the complex numbers, and the more general
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by yshklarov 3y ago
One problem with this: People often learn to touch multiple targets quickly in sequence, because one touch event predictably pops up the target for the next event.
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by yshklarov 3y ago
This chart beggars belief. Could we have a link to the actual studies, and not an anonymous image, please??

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