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aportnoy

1,277 karma · joined August 14, 2017

email: aportnoy@pm.me
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aportnoy··on Explore ISS on Google Maps
So the ThinkPad is the NASA laptop of choice?
aportnoy··on Show HN: Procedural image generator in C
What's a good uniform alternative to rand() in C?
aportnoy··on Show HN: Procedural image generator in C
Would be grateful if people could point me to more resources on procedural image generation, preferably something genetic/evolution based.
aportnoy··on Coolest Things I Learned in 2018
All animals create carbon dioxide clouds around them with this technique called breathing.
aportnoy··on Tensor considered harmful
How does this compare with xarray?
aportnoy··on Ask HN: What's the most secure smartphone in 2019?
OT: you have the same first name as Karl Pearson’s son.
aportnoy··on Google shifted $23B to tax haven Bermuda in 2017
The singular of maxima is maximum.
aportnoy··on HAKMEM (1972) [pdf]
Oh no, Kolmogorov is referred to as Komolgoroff in item 105.

This problem is in fact due to Kazimierz Kuratowski: https://en.wikipedia.org/wiki/Kuratowski%27s_closure-complem...

aportnoy··on How Facebook tracks you on Android [video]
I decided to try to replicate this on my iPhone and looks like Acrobat Reader and the Readdle PDF viewer both use Facebook SDK and send data automatically.
aportnoy··on Jean Bourgain
Upvoted you, I asked myself the same question. Looks like a bot that annoys bloggers by notifying them that their writing is trending on various aggregators.
aportnoy··on Jean Bourgain
Tangential, but Tao is such a great teacher of mathematics and person. A rare combination of skill and modesty. Highly recommend his analysis and measure theory textbooks.
aportnoy··on Ask HN: Did you delete your Facebook account in 2018?
What do you mean? What's the relationship?
aportnoy··on How Alexa knows “peanut butter” is one shopping-list item, not two
Same for "chocolate milk".
aportnoy··on Show HN: Bubblin – Bandcamp for books
Explain to the folks at home what Bandcamp is
aportnoy··on World's first fully electric bus fleet quietens Chinese megacity
It's in my dictionary, marked as chiefly British.
aportnoy··on Hamiltonian Monte Carlo explained
Also check out Michael Betancourt’s (one of the developers of Stan) introduction: https://arxiv.org/abs/1701.02434
aportnoy··on The U.S. Yield Curve Has Inverted
> All it means is that the central bank will probably leave interest rates steady, or even cut a bit, in 2022 or 2023.

This event reflects the relative preference of the markets for the 5 yrs compared to 3 yrs, producing lower effective yields. This is probably done to secure a certain rate for a longer period of time.

aportnoy··on Asana raises $50M at a $1.5B valuation
> and it will set down more roots in Asia-Pacific, with offices in Sydney and Tokyo

meaning they will provision AWS instances in these locations?

aportnoy··on The FBI of the National Park Service
You should play Firewatch.
aportnoy··on Nancy Pelosi's Husband Purchases Large Blocks of Options on Amazon, Facebook
Why is this flagged?
aportnoy··on Nancy Pelosi's Husband Purchases Large Blocks of Options on Amazon, Facebook
I know.
aportnoy··on Nancy Pelosi's Husband Purchases Large Blocks of Options on Amazon, Facebook
I know.
aportnoy··on Nancy Pelosi's Husband Purchases Large Blocks of Options on Amazon, Facebook
Wouldn’t be hard if these were put options…
aportnoy··on Nancy Pelosi's Husband Purchases Large Blocks of Options on Amazon, Facebook
I think it’s relevant to see in the title what kind of options (call/put) he’s buying.
aportnoy··on Imaginary worlds dreamed by BigGAN
Funny how they mess with your brain: the illusion is that you are looking at something familiar. The texture is "easy" to look at, but the brain fails to recognize a known object.
aportnoy··on SpaceX just got FCC approval to launch 7,518 satellites
Iridium already employs SpaceX for their launches.
aportnoy··on Blockchain’s Hype Is Dying According to Corporate America’s Earnings Calls
To BUIDL and soon to go bankruptl
aportnoy··on New Proof Shows Infinite Curves Come in Two Types
Any infinite set is either countable or uncountable.
aportnoy··on New Proof Shows Infinite Curves Come in Two Types
The opposite is true. Take the interval [0, 1], "sample a random real number x" from it. P(x is rational) = 0, P(x is irrational) = 1.

Informally, the overwhelming majority of real numbers are irrational.

aportnoy··on New Proof Shows Infinite Curves Come in Two Types
Not only that, we should expect to always get an irrational number, but always get rationals from a finite subset of Q. I recently asked a closely related question on Math.SE:

https://math.stackexchange.com/questions/2952087/sampling-fr...

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