Victor Geislinger
@victorsvector.com
Combination of machine learning engineer / data scientist and teacher (depending on what hat I'm wearing that day)
Focusing on ML/AI @Google
(obligatory 'opinions are my own')
github.com/MrGeislinger
Focusing on ML/AI @Google
(obligatory 'opinions are my own')
github.com/MrGeislinger
Pinned
Victor Geislinger
@victorsvector.com
· Oct 28
MrGeislinger - Overview
Combination of machine learning engineer / data scientist and teacher (depending on what hat I'm wearing that day) - MrGeislinger
GitHub.com
Hi! I'm Victor!
Here's a quick intro :D
These days I focus on ML/AI at Google but have been a teacher, data scientist MLE, etc.
I try to be genuine & positive so when I leave this world it's in a better state than I found it
You can likely find my other online presences on GitHub.com/MrGeislinger
Here's a quick intro :D
These days I focus on ML/AI at Google but have been a teacher, data scientist MLE, etc.
I try to be genuine & positive so when I leave this world it's in a better state than I found it
You can likely find my other online presences on GitHub.com/MrGeislinger
Happy Friday the 13th to those who celebrate!!
(And we're *lucky* this year since we get two months in a row with Friday the 13ths!)
(And we're *lucky* this year since we get two months in a row with Friday the 13ths!)
a picture of jason voorhees with the words happy friday the 13th on the bottom
Alt: a picture of jason in a hocky mask slowly looking up with the words happy friday the 13th on the bottom
media.tenor.com
February 13, 2026 at 4:52 PM
Happy Friday the 13th to those who celebrate!!
(And we're *lucky* this year since we get two months in a row with Friday the 13ths!)
(And we're *lucky* this year since we get two months in a row with Friday the 13ths!)
Reposted by Victor Geislinger
I feel this shouldn't have to be said, but if you're running an @OpenClaw bot please don't let it spam GitHub projects with PRs and then write aggressive blog posts attacking the reputation of the maintainers who close those PRs simonwillison.net/2026/Feb/12/...
An AI Agent Published a Hit Piece on Me
Scott Shambaugh helps maintain the excellent and venerable matplotlib Python charting library, including taking on the thankless task of triaging and reviewing incoming pull requests. A GitHub account...
simonwillison.net
February 12, 2026 at 5:47 PM
I feel this shouldn't have to be said, but if you're running an @OpenClaw bot please don't let it spam GitHub projects with PRs and then write aggressive blog posts attacking the reputation of the maintainers who close those PRs simonwillison.net/2026/Feb/12/...
Reposted by Victor Geislinger
So this is dystopian as hell and I can't believe this is real...
AI agents are now writing takedown blog posts to shame maintainers for not accepting agent-generated PRs.
github.com/matplotlib/m...
AI agents are now writing takedown blog posts to shame maintainers for not accepting agent-generated PRs.
github.com/matplotlib/m...
[PERF] Replace np.column_stack with np.vstack().T by crabby-rathbun · Pull Request #31132 · matplotlib/matplotlib
This PR addresses issue #31130 by replacing specific safe occurrences of np.column_stack with np.vstack().T for better performance.
IMPORTANT: This is a more targeted fix than originally proposed. ...
github.com
February 12, 2026 at 5:01 PM
So this is dystopian as hell and I can't believe this is real...
AI agents are now writing takedown blog posts to shame maintainers for not accepting agent-generated PRs.
github.com/matplotlib/m...
AI agents are now writing takedown blog posts to shame maintainers for not accepting agent-generated PRs.
github.com/matplotlib/m...
Reposted by Victor Geislinger
Our grad-level "Deep Learning" course (MIT's 6.7960) is now freely available online through OpenCourseWare: ocw.mit.edu/courses/6-79...
Lecture videos, psets, and readings are all provided.
Had a lot of fun teaching this with @sarameghanbeery.bsky.social and @jeremybernste.in!
Lecture videos, psets, and readings are all provided.
Had a lot of fun teaching this with @sarameghanbeery.bsky.social and @jeremybernste.in!
February 11, 2026 at 5:52 PM
Our grad-level "Deep Learning" course (MIT's 6.7960) is now freely available online through OpenCourseWare: ocw.mit.edu/courses/6-79...
Lecture videos, psets, and readings are all provided.
Had a lot of fun teaching this with @sarameghanbeery.bsky.social and @jeremybernste.in!
Lecture videos, psets, and readings are all provided.
Had a lot of fun teaching this with @sarameghanbeery.bsky.social and @jeremybernste.in!
Hell yeah
I'm slowly & surely just living in the command line. Soon enough, it'll be like GUIs never existed on my computer
I'm slowly & surely just living in the command line. Soon enough, it'll be like GUIs never existed on my computer
Anything you can do in Obsidian you can do from the command line.
Obsidian CLI is now available in 1.12 (early access).
Obsidian CLI is now available in 1.12 (early access).
February 10, 2026 at 9:09 PM
Hell yeah
I'm slowly & surely just living in the command line. Soon enough, it'll be like GUIs never existed on my computer
I'm slowly & surely just living in the command line. Soon enough, it'll be like GUIs never existed on my computer
Dentist: you seemed really chill during the surgery; I think you could've fallen asleep
Me: oh yeah I was feeling relaxed so sometimes I was just closing my eyes
Dentist: yeah, that's not usually how this goes w/ our patients...
Me: oh yeah I was feeling relaxed so sometimes I was just closing my eyes
Dentist: yeah, that's not usually how this goes w/ our patients...
February 10, 2026 at 7:48 PM
Dentist: you seemed really chill during the surgery; I think you could've fallen asleep
Me: oh yeah I was feeling relaxed so sometimes I was just closing my eyes
Dentist: yeah, that's not usually how this goes w/ our patients...
Me: oh yeah I was feeling relaxed so sometimes I was just closing my eyes
Dentist: yeah, that's not usually how this goes w/ our patients...
frankly I got the Monday blues (biking probably would've helped), but giving a little donation selfishly helped my mood
www.pih.org/maternal-cen...
www.pih.org/maternal-cen...
Maternal Center of Excellence
www.pih.org
February 9, 2026 at 3:47 PM
frankly I got the Monday blues (biking probably would've helped), but giving a little donation selfishly helped my mood
www.pih.org/maternal-cen...
www.pih.org/maternal-cen...
Reposted by Victor Geislinger
📢 Paper alert!
We know typological features can drive the difficulty of language modeling & machine translation in highly controlled setups (w/ relatively small monolingual models)
But do they also drive MT quality in the age of massively multilingual LLMs?
See @v-hirak.bsky.social’s thread ⬇️
We know typological features can drive the difficulty of language modeling & machine translation in highly controlled setups (w/ relatively small monolingual models)
But do they also drive MT quality in the age of massively multilingual LLMs?
See @v-hirak.bsky.social’s thread ⬇️
Our paper has been accepted to #EACL2026 main conference!
Together with @jumelet.bsky.social and @arianna-bis.bsky.social, we study the effect of target language typology on the difficulty of state-of-the-art neural machine translation.
arXiv preprint: arxiv.org/abs/2602.03551
1/6 Our findings ⬇️
Together with @jumelet.bsky.social and @arianna-bis.bsky.social, we study the effect of target language typology on the difficulty of state-of-the-art neural machine translation.
arXiv preprint: arxiv.org/abs/2602.03551
1/6 Our findings ⬇️
Assessing the Impact of Typological Features on Multilingual Machine Translation in the Age of Large Language Models
Despite major advances in multilingual modeling, large quality disparities persist across languages. Besides the obvious impact of uneven training resources, typological properties have also been prop...
arxiv.org
February 9, 2026 at 9:04 AM
📢 Paper alert!
We know typological features can drive the difficulty of language modeling & machine translation in highly controlled setups (w/ relatively small monolingual models)
But do they also drive MT quality in the age of massively multilingual LLMs?
See @v-hirak.bsky.social’s thread ⬇️
We know typological features can drive the difficulty of language modeling & machine translation in highly controlled setups (w/ relatively small monolingual models)
But do they also drive MT quality in the age of massively multilingual LLMs?
See @v-hirak.bsky.social’s thread ⬇️
This totally reminds me of @gusthema.bsky.social getting the weights of Gemma in an encased USB for its launch
www.threads.com/@lgusmartins...
www.threads.com/@lgusmartins...
February 9, 2026 at 1:47 PM
This totally reminds me of @gusthema.bsky.social getting the weights of Gemma in an encased USB for its launch
www.threads.com/@lgusmartins...
www.threads.com/@lgusmartins...
February 9, 2026 at 1:12 PM
This is fun to explore! (t-SNE is an always interesting viz)
Was a little surprised by my grouping but it made more sense when I realized it was based on following. (I should probably be following more folks— haven't really since my initial Blueksy start)
Was a little surprised by my grouping but it made more sense when I realized it was based on following. (I should probably be following more folks— haven't really since my initial Blueksy start)
I made a map of 3.4 million Bluesky users - see if you can find yourself!
bluesky-map.theo.io
I've seen some similar projects, but IMO this seems to better capture some of the fine-grained detail
bluesky-map.theo.io
I've seen some similar projects, but IMO this seems to better capture some of the fine-grained detail
Bluesky Map
Interactive map of 3.4 million Bluesky users, visualised by their follower pattern.
bluesky-map.theo.io
February 9, 2026 at 12:56 PM
This is fun to explore! (t-SNE is an always interesting viz)
Was a little surprised by my grouping but it made more sense when I realized it was based on following. (I should probably be following more folks— haven't really since my initial Blueksy start)
Was a little surprised by my grouping but it made more sense when I realized it was based on following. (I should probably be following more folks— haven't really since my initial Blueksy start)
Well woke up at 4am for nothing now that I can't bike to work
The short of it is my rear basket came loose, messed up some rear sprockets, & now I need a new cassette (been needing to change that). At least it happened at the very beginning of the ride
Happy Monday
The short of it is my rear basket came loose, messed up some rear sprockets, & now I need a new cassette (been needing to change that). At least it happened at the very beginning of the ride
Happy Monday
February 9, 2026 at 12:43 PM
Well woke up at 4am for nothing now that I can't bike to work
The short of it is my rear basket came loose, messed up some rear sprockets, & now I need a new cassette (been needing to change that). At least it happened at the very beginning of the ride
Happy Monday
The short of it is my rear basket came loose, messed up some rear sprockets, & now I need a new cassette (been needing to change that). At least it happened at the very beginning of the ride
Happy Monday
Reposted by Victor Geislinger
But now we have gone from owning 100% to owning 0% because, for the last month, Complexly has been a non-profit organization.
apnews.com/article/john...
apnews.com/article/john...
Hank and John Green's studio becomes a nonprofit as they aim to make 'trustworthy content' online
Author-vloggers Hank and John Green are turning their educational media company Complexly into a nonprofit.
apnews.com
February 4, 2026 at 4:11 PM
But now we have gone from owning 100% to owning 0% because, for the last month, Complexly has been a non-profit organization.
apnews.com/article/john...
apnews.com/article/john...
Just took a look at work's 'knowledge share' agenda & realized I completely forgot that it was for me to present in an hour! Need to put something together quick 😅
Don't know if I should actually 'brag' about this (makes me look a little bad)
For the record it's on this: pypi.org/project/tpu-...
Don't know if I should actually 'brag' about this (makes me look a little bad)
For the record it's on this: pypi.org/project/tpu-...
GitHub - AI-Hypercomputer/cloud-accelerator-diagnostics
Contribute to AI-Hypercomputer/cloud-accelerator-diagnostics development by creating an account on GitHub.
github.com
February 3, 2026 at 4:03 PM
Just took a look at work's 'knowledge share' agenda & realized I completely forgot that it was for me to present in an hour! Need to put something together quick 😅
Don't know if I should actually 'brag' about this (makes me look a little bad)
For the record it's on this: pypi.org/project/tpu-...
Don't know if I should actually 'brag' about this (makes me look a little bad)
For the record it's on this: pypi.org/project/tpu-...
I know calorie estimates are not reliable, but I think this could be close considering I biked 30km with 90 pounds of cargo (my kids in the bike carrier)
Let's just say I am thoroughly exhausted
Let's just say I am thoroughly exhausted
February 2, 2026 at 2:59 AM
I know calorie estimates are not reliable, but I think this could be close considering I biked 30km with 90 pounds of cargo (my kids in the bike carrier)
Let's just say I am thoroughly exhausted
Let's just say I am thoroughly exhausted
Nevermind the jobs you had, tell me five classes you took at university
Math Methods for Physics
Non-Relative Quantum Mechanics
Adv Linear Algebra
CalTeach: Science
History of Walt Disney and Disney Corporation
Math Methods for Physics
Non-Relative Quantum Mechanics
Adv Linear Algebra
CalTeach: Science
History of Walt Disney and Disney Corporation
Nevermind the jobs you had, tell me five classes you took at university
Politics of the environment
Epistemology
History of analytic philosophy
Classical mechanics
Introduction to story telling
Politics of the environment
Epistemology
History of analytic philosophy
Classical mechanics
Introduction to story telling
Nevermind the jobs you had, tell me five classes you took at university
Discrete optimization
Econometrics
Religious literature
Natural language processing
Error correcting codes
Discrete optimization
Econometrics
Religious literature
Natural language processing
Error correcting codes
February 1, 2026 at 5:18 AM
Nevermind the jobs you had, tell me five classes you took at university
Math Methods for Physics
Non-Relative Quantum Mechanics
Adv Linear Algebra
CalTeach: Science
History of Walt Disney and Disney Corporation
Math Methods for Physics
Non-Relative Quantum Mechanics
Adv Linear Algebra
CalTeach: Science
History of Walt Disney and Disney Corporation
Family night making little lego creatures
February 1, 2026 at 3:56 AM
Family night making little lego creatures
it took a lot for me not to say 'well, actually you should also color in the square...'
(jk I told them but also explained that they did it exactly right from what they learned)
(jk I told them but also explained that they did it exactly right from what they learned)
February 1, 2026 at 1:22 AM
it took a lot for me not to say 'well, actually you should also color in the square...'
(jk I told them but also explained that they did it exactly right from what they learned)
(jk I told them but also explained that they did it exactly right from what they learned)
Finally got the chance to play around w/ Qwen3-TTS today & checking out the architecture
github.com/QwenLM/Qwen3...
arxiv.org/abs/2601.15621
I'm still wowed how much we can now do w/ local models. I have some ideas w/ this that might end up being useful for someone I know
github.com/QwenLM/Qwen3...
arxiv.org/abs/2601.15621
I'm still wowed how much we can now do w/ local models. I have some ideas w/ this that might end up being useful for someone I know
GitHub - QwenLM/Qwen3-TTS: Qwen3-TTS is an open-source series of TTS models developed by the Qwen team at Alibaba Cloud, supporting stable, expressive, and streaming speech generation, free-form voice...
Qwen3-TTS is an open-source series of TTS models developed by the Qwen team at Alibaba Cloud, supporting stable, expressive, and streaming speech generation, free-form voice design, and vivid voice...
github.com
February 1, 2026 at 12:49 AM
Finally got the chance to play around w/ Qwen3-TTS today & checking out the architecture
github.com/QwenLM/Qwen3...
arxiv.org/abs/2601.15621
I'm still wowed how much we can now do w/ local models. I have some ideas w/ this that might end up being useful for someone I know
github.com/QwenLM/Qwen3...
arxiv.org/abs/2601.15621
I'm still wowed how much we can now do w/ local models. I have some ideas w/ this that might end up being useful for someone I know
Hell yeah Alec— keep doing what you're doing
@techconnectify.bsky.social of course has great explanations, but go skip to the 1 hour mark after the 'fake ending'. Something like this honestly gives me hope knowing how also fed up others also are w/ the madness— needed this catharsis
@techconnectify.bsky.social of course has great explanations, but go skip to the 1 hour mark after the 'fake ending'. Something like this honestly gives me hope knowing how also fed up others also are w/ the madness— needed this catharsis
January 30, 2026 at 8:31 PM
Hell yeah Alec— keep doing what you're doing
@techconnectify.bsky.social of course has great explanations, but go skip to the 1 hour mark after the 'fake ending'. Something like this honestly gives me hope knowing how also fed up others also are w/ the madness— needed this catharsis
@techconnectify.bsky.social of course has great explanations, but go skip to the 1 hour mark after the 'fake ending'. Something like this honestly gives me hope knowing how also fed up others also are w/ the madness— needed this catharsis
Showing my wife an email I wrote, she says to me "I know you didn't use AI, but this *totally* sounds as if an AI did"
To be clear, it wasn't badly written. But still not exactly sure how to feel about this lol
To be clear, it wasn't badly written. But still not exactly sure how to feel about this lol
January 29, 2026 at 4:00 PM
Showing my wife an email I wrote, she says to me "I know you didn't use AI, but this *totally* sounds as if an AI did"
To be clear, it wasn't badly written. But still not exactly sure how to feel about this lol
To be clear, it wasn't badly written. But still not exactly sure how to feel about this lol
Are you ok?
I'm not mad at you.
Came back from a camping trip today & I'm absolutely heartbroken hearing just all the horrific awfulness
I'm not mad at you.
Came back from a camping trip today & I'm absolutely heartbroken hearing just all the horrific awfulness
January 25, 2026 at 11:16 PM
Are you ok?
I'm not mad at you.
Came back from a camping trip today & I'm absolutely heartbroken hearing just all the horrific awfulness
I'm not mad at you.
Came back from a camping trip today & I'm absolutely heartbroken hearing just all the horrific awfulness
Hey Python #dataBS folks— this could be fun to checkout if you have a Mac!
You get Jupyter Notebook functionality but using just plain .py files
You get Jupyter Notebook functionality but using just plain .py files
You can try this out now!
January 21, 2026 at 3:20 PM
Hey Python #dataBS folks— this could be fun to checkout if you have a Mac!
You get Jupyter Notebook functionality but using just plain .py files
You get Jupyter Notebook functionality but using just plain .py files
Super interesting post where someone breaks down their Claude Code usage with an estimated amount of energy!
I honestly would love to hear thoughts from folks who also use coding agents like this. Does this match close to your breakdown? Also would love to hear what people think about the article
I honestly would love to hear thoughts from folks who also use coding agents like this. Does this match close to your breakdown? Also would love to hear what people think about the article
Whenever I read discourse on AI energy/water use that focuses on the "median query," I can't help but feel misled. Coding agents like Claude Code send hundreds of longer-than-median queries every session, and I run dozens of sessions a day.
On my blog: www.simonpcouch.com/blog/2026-01...
On my blog: www.simonpcouch.com/blog/2026-01...
January 20, 2026 at 4:33 PM
Super interesting post where someone breaks down their Claude Code usage with an estimated amount of energy!
I honestly would love to hear thoughts from folks who also use coding agents like this. Does this match close to your breakdown? Also would love to hear what people think about the article
I honestly would love to hear thoughts from folks who also use coding agents like this. Does this match close to your breakdown? Also would love to hear what people think about the article
Cleaning up the house & finding this sticker stuck on the floor brings me much joy
January 20, 2026 at 1:58 AM
Cleaning up the house & finding this sticker stuck on the floor brings me much joy