1 Followers
77 Following
34 Posts
Dad of one. Prof of Mathematical Cryptology at Leiden University and researcher at the Centrum Wiskunde & Informatica. Loves lattices and algorithms.
personal webpagehttps://homepages.cwi.nl/~ducas/
githubhttps://github.com/lducas/
I have FOMO for the #mathtsodon instance. I get that i can easily migrate profile from an instance to the next, including followings, but my understanding is that it is not automatic for followers. Am I correct ?

Even better, they even provide an easy-to-run #algorithm (#Matlab code)! Let's look at Cauchy—Schwarz in the pictures below. This is a very simple example, but it can do much more. This should tell you enough to make you want to try it!

Code (and paper proving its correctness) available on Greg Valiant's page: https://theory.stanford.edu/~valiant/pap_link.html

[I am working with a student to convert it to other languages and improve the interface]

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Gregory Valiant Homepage

Gregory Valiant, Greg, Homepage, Stanford, Berkeley, Computer Science, Theory

Reposting here, as this could be of interest to the #mathematics community: the automatic inequality prover of Greg and Paul Valiant, which lets you to automatically check and (dis)prove a whole bunch of inequalities.

Basically any inequality that's a combination of Hölder and ℓp-monotonicity-type #math #maths #tools

You give a candidate inequality in that form, and the output will be either a #proof that it doesn't hold, or a message saying that it does& how to prove it!

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The claims in this early #Twitter engineer’s explainer sound so completely nuts that, after everything we’ve seen so far, it may actually be spot on: https://davetroy.medium.com/no-elon-and-jack-are-not-competitors-theyre-collaborating-3e88cde5267d
No, Elon and Jack are not “competitors.” They’re collaborating.

Wherein I attempt to clarify a number of ridiculous and false narratives currently taking hold about Musk and Dorsey’s “rivalry.”

Medium
"Ecrire un script python qui produit une image" était le thème 2022 de notre 1er projet en 1ère #NSI.
Deux exemples de réalisation pour débuter un 🧶 haut en couleur ⤵️
In fact, the worst case cost me about 1/2 * k^2 calls. Can I even just improve that 1/2 constant ?

I ran in the following head-  scratcher:

f(n,m) can be computed at a cost C either from f(n-1,m) or f(n,m-1). f(0,0) is given.

I don't know the exact input values in advance, but I do know that calls to f will happen with decreasing m and increasing n. I'll make at most k calls, with 0 <= m,n <= k.

If I'm greedy (taking the shortest path from memoized calls), that can cost me up to O(C * k^2).

Can I do better ?

Mastodon url considered malware by the bird site. #Birdsite #Exodus
#eprint A Practical Full Key Recovery Attack on TFHE and FHEW by Inducing Decryption Errors by Bhuvnesh Chaturvedi, Anirban Chakraborty, Ayantika Chatterjee, Debdeep Mukhopadhyay (https://ia.cr/2022/1563)
A Practical Full Key Recovery Attack on TFHE and FHEW by Inducing Decryption Errors

My impression on Mastodon:

Until recently:
- niche geek / academic experiment, can't compare with twitter. Can't even discover new profiles easily! 🤦‍♂️

Now:
- wow, Mastodon is not trying to steal my attention in any way. No ads. No junk content inserted on my timeline. This is invaluable 🤗🥲😍🤟