Derk Kooi
@derkkooi.bsky.social
520 followers 490 following 23 posts
Senior Researcher @ Microsoft Research AI for Science Bestuurslid @kwakzalverij.nl Rabbit fan Lost quantum chemist working in AI Views are my own and do not necessarily reflect those of my employer!
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derkkooi.bsky.social
This week I will be in Lausanne for Psi-K. Any bluesky tweeps around? 😄
derkkooi.bsky.social
Come join our wonderful team!
jan.hermann.name
Interested in our mission to make DFT more accurate and push what’s possible in quantum chemistry? Do you want to directly contribute? We're hiring a senior software engineer and a senior researcher:

jobs.careers.microsoft.com/global/en/jo...

jobs.careers.microsoft.com/global/en/jo...
jan.hermann.name
🚀 After two+ years of intense research, we’re thrilled to introduce Skala — a scalable deep learning density functional that hits chemical accuracy on atomization energies and matches hybrid-level accuracy on main group chemistry — all at the cost of semi-local DFT ⚛️🔥🧪🧬
Reposted by Derk Kooi
jan.hermann.name
Interested in our mission to make DFT more accurate and push what’s possible in quantum chemistry? Do you want to directly contribute? We're hiring a senior software engineer and a senior researcher:

jobs.careers.microsoft.com/global/en/jo...

jobs.careers.microsoft.com/global/en/jo...
jan.hermann.name
🚀 After two+ years of intense research, we’re thrilled to introduce Skala — a scalable deep learning density functional that hits chemical accuracy on atomization energies and matches hybrid-level accuracy on main group chemistry — all at the cost of semi-local DFT ⚛️🔥🧪🧬
Reposted by Derk Kooi
jan.hermann.name
🚀 After two+ years of intense research, we’re thrilled to introduce Skala — a scalable deep learning density functional that hits chemical accuracy on atomization energies and matches hybrid-level accuracy on main group chemistry — all at the cost of semi-local DFT ⚛️🔥🧪🧬
derkkooi.bsky.social
Look Around You is still one of my favourite comedy bits.

Watch the pilot on Calcium and see if we share the same humor: youtu.be/FBaVwwuErmU
Look Around You: Season 1 Pilot - Calcium
YouTube video by DocShadow660
youtu.be
derkkooi.bsky.social
Just received word that Boltzmann is still trapped in the coffee corner.
derkkooi.bsky.social
Alles Gute zum Geburtstag! At least if my German is not horribly off.
derkkooi.bsky.social
I'm curious to know if anybody has done a comparison of the performance of torch.autograd and torch.func regarding speed, memory usage and so on. I like torch.func a lot, but it won't be so easy to convince others without showing (at least) equivalence.
derkkooi.bsky.social
Beautiful, this asks for a "don't talk to me or my son ever again" meme.
derkkooi.bsky.social
I should buy that book. 🤔
derkkooi.bsky.social
Yes, this I absolutely agree with. The data isn't there to learn this. In a way this experiment is weird in that one usually tries to generalize from less to more atoms and not the other way round.
derkkooi.bsky.social
It has a more complicated PES in the equilibrium region, but I wouldn't call that less smooth, I think. A simple MLP of the internuclear distance would easily fit it in any case. The question is if that's the case for the MLIP models as well, though.
derkkooi.bsky.social
Cr2 is hard from the quantum chemistry perspective, but is it the same from a force field perspective? Sure there is this weird decay, but a function of R is a function of R.
derkkooi.bsky.social
I guess the issue here is that if you train on MD data, which I think is usually the case (?), one simply doesn't see these distances. Perhaps systematically exploring also high energy regions in the PES could alleviate this?
derkkooi.bsky.social
"Overgangsfase"? Dit was in the good old days sowieso veel normaler, met één app posten op alle sociale media.
derkkooi.bsky.social
Too dark? I don't know what the level of darkness tolerated on bluesky is yet.
derkkooi.bsky.social
It's also similar to children in the sense that it's hard to erase if you made a mistake.
derkkooi.bsky.social
Right, but NVIDIA essentially provides only a C++ API, so it still matters how well that was tied into the other language, no?
derkkooi.bsky.social
From what I saw it's not great for GPU programming, am I correct in that?
derkkooi.bsky.social
Okay, that's fine, but only if it's in a 6-31G* basis and not an orbital more.
derkkooi.bsky.social
I've tried to get this point across multiple times, but usually failed at the "but CCSD(T) has an underlying wave function" argument. If only I could have those arguments again!
derkkooi.bsky.social
In this post-truth era we simply decide it to be correct. Repeat after me: CCSD(T) is the gold standard of quantum chemistry, CCSD(T) is the gold standard of quantum chemistry, CCSD(T) is the gold standard of quantum chemistry.
derkkooi.bsky.social
Frederick's adorable!