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 World Linguistics Day from the Bay Area (California, US)!
(But if I'm currently on vacation in Chico, CA / Sacramento, CA do I count where I am or where I live??)
(But if I'm currently on vacation in Chico, CA / Sacramento, CA do I count where I am or where I live??)
Happy World Linguistics Day from Montreal, Canada!
(I wonder how many different places we can get world linguistics day wishes from this year!)
(I wonder how many different places we can get world linguistics day wishes from this year!)
Happy World Linguistics Day from Melbourne, Australia!
November 26, 2025 at 3:16 PM
Happy World Linguistics Day from the Bay Area (California, US)!
(But if I'm currently on vacation in Chico, CA / Sacramento, CA do I count where I am or where I live??)
(But if I'm currently on vacation in Chico, CA / Sacramento, CA do I count where I am or where I live??)
spotted some wild hyperbolic paraboloids
November 25, 2025 at 11:43 PM
spotted some wild hyperbolic paraboloids
Even on vacation at the Sac Zoo, I can't escape my Python work
November 25, 2025 at 9:32 PM
Even on vacation at the Sac Zoo, I can't escape my Python work
Last night I was playing with networking on my home intranet so my new headless machine connected together directly w/ ethernet to my server
It's not really that impressive or important to anyone here, but I was all giddy getting it to work as expected :D
(Felt like a linux god for a hot moment!)
It's not really that impressive or important to anyone here, but I was all giddy getting it to work as expected :D
(Felt like a linux god for a hot moment!)
November 25, 2025 at 4:26 PM
Last night I was playing with networking on my home intranet so my new headless machine connected together directly w/ ethernet to my server
It's not really that impressive or important to anyone here, but I was all giddy getting it to work as expected :D
(Felt like a linux god for a hot moment!)
It's not really that impressive or important to anyone here, but I was all giddy getting it to work as expected :D
(Felt like a linux god for a hot moment!)
hey #data people, read this quick post on survivorship bias & how to actually identify & work with it (with the power of math!!)
(adding the classic image since i'm shameless unlike Randy & their guest)
(adding the classic image since i'm shameless unlike Randy & their guest)
November 25, 2025 at 4:17 PM
hey #data people, read this quick post on survivorship bias & how to actually identify & work with it (with the power of math!!)
(adding the classic image since i'm shameless unlike Randy & their guest)
(adding the classic image since i'm shameless unlike Randy & their guest)
Happy 'Dragons Love Tacos' Day to those who celebrate!
If you got kids, you should totally hear Band Books' reading of the book — it's glorious
music.youtube.com/watch?v=E5x8...
If you got kids, you should totally hear Band Books' reading of the book — it's glorious
music.youtube.com/watch?v=E5x8...
November 23, 2025 at 7:46 PM
Happy 'Dragons Love Tacos' Day to those who celebrate!
If you got kids, you should totally hear Band Books' reading of the book — it's glorious
music.youtube.com/watch?v=E5x8...
If you got kids, you should totally hear Band Books' reading of the book — it's glorious
music.youtube.com/watch?v=E5x8...
Yesterday made a little local terminal chat server & client where the family could use our intranet to chat. Kids were having a blast!
github.com/MrGeislinger...
Ended up adding more tweaks & running a client from my phone
(fyi this is a fake chat — kids really liked saying potty words, as kids do)
github.com/MrGeislinger...
Ended up adding more tweaks & running a client from my phone
(fyi this is a fake chat — kids really liked saying potty words, as kids do)
![Terminal with different colored text:
[10:23:46] [System]: Dad's Phone joined the chat!
[10:23:57] [System]: Dad joined the chat!
[10:24:08] Dad's Phone: Rice
[10:24:38] Dad: Rice for breakfast that is ;)
Is it really already 10:30?!
[10:25:05] Mom: Is it really already 10:30?!
[10:26:34] Dad's Phone: We will go get donuts for breakfast!
[10:28:46] [System]: Rory joined the chat!
[10:28:50] [System]: Corey joined the chat!
[10:28:57] Rory: Yes!!!
Safeway or Krispy Kreme?
[10:29:22] Mom: Safeway or Krispy
[10:29:48] Corey: KRISPY KREME!](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:jfda6xfy4ncaf72omkvrbkko/bafkreifvbwuiitboknxwrmru5nry7d6tqzqfl24fowgqmxdxci2z2ask5y@jpeg)
![Terminal on phone (on screen keyboard) with different colored text:
[10:23:46] [System]: Dad's Phone joined the chat!
[10:23:57] [System]: Dad joined the chat!
Rice
[10:24:08] Dad's Phone: Rice
[10:24:38] Dad: Rice for breakfast that is ;)
[10:25:05] Mom: Is it really already 10:30?!
We will go get donuts for breakfast!
[10:26:34] Dad's Phone: We will go get donuts for breakfast!
[10:28:46] [System]: Rory joined the chat!
[10:28:50] [System]: Corey joined the chat!
[10:28:57] Rory: Yes!!!
[10:29:22] Mom: Safeway or Krispy
[10:29:48] Corey: KRISPY KREME!](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:jfda6xfy4ncaf72omkvrbkko/bafkreic6m3srmbq5dn4iuqdc7ghkr2jr5cfrguon6rumfjprjaemaoceiq@jpeg)
November 23, 2025 at 7:00 PM
Yesterday made a little local terminal chat server & client where the family could use our intranet to chat. Kids were having a blast!
github.com/MrGeislinger...
Ended up adding more tweaks & running a client from my phone
(fyi this is a fake chat — kids really liked saying potty words, as kids do)
github.com/MrGeislinger...
Ended up adding more tweaks & running a client from my phone
(fyi this is a fake chat — kids really liked saying potty words, as kids do)
whoomp there it is
blog.google/products/gem...
blog.google/products/gem...
November 18, 2025 at 4:21 PM
whoomp there it is
blog.google/products/gem...
blog.google/products/gem...
Dang @thestorygraph.com is down : /
It's times like this I wish there was an API I could later use to update my reading progress. For now. Going back to my old way of timing & taking manual notes
Frankly makes me again play with the idea of building something myself ('dig my own well')
It's times like this I wish there was an API I could later use to update my reading progress. For now. Going back to my old way of timing & taking manual notes
Frankly makes me again play with the idea of building something myself ('dig my own well')
November 18, 2025 at 1:56 PM
Dang @thestorygraph.com is down : /
It's times like this I wish there was an API I could later use to update my reading progress. For now. Going back to my old way of timing & taking manual notes
Frankly makes me again play with the idea of building something myself ('dig my own well')
It's times like this I wish there was an API I could later use to update my reading progress. For now. Going back to my old way of timing & taking manual notes
Frankly makes me again play with the idea of building something myself ('dig my own well')
Reposted by Victor Geislinger
Big moment as a dad: teaching my kids to play Factorio ♥️♥️
They're 5yrs old & just learning how to use WASD + mouse
definitely a bit of an extra challenge that they are just starting to learn to read. But they're still having a good time learning "Dad's building game"
They're 5yrs old & just learning how to use WASD + mouse
definitely a bit of an extra challenge that they are just starting to learn to read. But they're still having a good time learning "Dad's building game"
November 16, 2025 at 2:59 AM
Big moment as a dad: teaching my kids to play Factorio ♥️♥️
They're 5yrs old & just learning how to use WASD + mouse
definitely a bit of an extra challenge that they are just starting to learn to read. But they're still having a good time learning "Dad's building game"
They're 5yrs old & just learning how to use WASD + mouse
definitely a bit of an extra challenge that they are just starting to learn to read. But they're still having a good time learning "Dad's building game"
We're doing our weekend house cleanup of the kids' room, and what do I find randomly in a basket of laundry that they filled up?
That's right! An unopened jar of mayonnaise!
That's right! An unopened jar of mayonnaise!
November 15, 2025 at 8:08 PM
We're doing our weekend house cleanup of the kids' room, and what do I find randomly in a basket of laundry that they filled up?
That's right! An unopened jar of mayonnaise!
That's right! An unopened jar of mayonnaise!
Just learned that @sfdirewolf.bsky.social passed on
If you didn't know much about Alice Wong, they were a disability rights activist.
A couple years ago, read their 'Disability Visibility' book of essays— definitely worth reading
disabilityvisibilityproject.com/book
If you didn't know much about Alice Wong, they were a disability rights activist.
A couple years ago, read their 'Disability Visibility' book of essays— definitely worth reading
disabilityvisibilityproject.com/book
November 15, 2025 at 3:02 PM
Just learned that @sfdirewolf.bsky.social passed on
If you didn't know much about Alice Wong, they were a disability rights activist.
A couple years ago, read their 'Disability Visibility' book of essays— definitely worth reading
disabilityvisibilityproject.com/book
If you didn't know much about Alice Wong, they were a disability rights activist.
A couple years ago, read their 'Disability Visibility' book of essays— definitely worth reading
disabilityvisibilityproject.com/book
Reposted by Victor Geislinger
I'm excited to announce my RLHF Book is now in pre-order for the @manning.com Early Access Program (MEAP), and for this milestone it's 50% off.
Excited to land in print in early 2026! Lots of improvements coming soon.
Thanks for the support!
hubs.la/Q03Tc37Q0
Excited to land in print in early 2026! Lots of improvements coming soon.
Thanks for the support!
hubs.la/Q03Tc37Q0
November 14, 2025 at 9:02 PM
I'm excited to announce my RLHF Book is now in pre-order for the @manning.com Early Access Program (MEAP), and for this milestone it's 50% off.
Excited to land in print in early 2026! Lots of improvements coming soon.
Thanks for the support!
hubs.la/Q03Tc37Q0
Excited to land in print in early 2026! Lots of improvements coming soon.
Thanks for the support!
hubs.la/Q03Tc37Q0
Tell me you wouldn't just love staring at this output all day?
Maybe it's just me, but I think there are not enough graphs in TUIs
Maybe it's just me, but I think there are not enough graphs in TUIs
W&B LEET
A full Terminal UI (TUI) for live, interactive W&B monitoring right in your terminal.
wandb.ai/wandb_fc/pro...
A full Terminal UI (TUI) for live, interactive W&B monitoring right in your terminal.
wandb.ai/wandb_fc/pro...
November 14, 2025 at 3:12 PM
Tell me you wouldn't just love staring at this output all day?
Maybe it's just me, but I think there are not enough graphs in TUIs
Maybe it's just me, but I think there are not enough graphs in TUIs
Great video about how a lot of the genetics we learn before university is a simplification
For the record, I'm nowhere near being a biologist. But I can confirm one part of the video: one of my identical twin children can roll their tongue & the other still hasn't figured it out XD
For the record, I'm nowhere near being a biologist. But I can confirm one part of the video: one of my identical twin children can roll their tongue & the other still hasn't figured it out XD
@pbs.org & @drjoehanson.bsky.social doing the lord's work & letting ppl know that genetics isn't as simple & convenient as the Punnett Square, & that life is so complex & messy that even the simplest, most mundane things about us are still the result incredibly complex systems interacting 🧬
Did I Make This Video to Debunk Your Biology Class?
YouTube video by Be Smart
youtu.be
November 13, 2025 at 10:01 PM
Great video about how a lot of the genetics we learn before university is a simplification
For the record, I'm nowhere near being a biologist. But I can confirm one part of the video: one of my identical twin children can roll their tongue & the other still hasn't figured it out XD
For the record, I'm nowhere near being a biologist. But I can confirm one part of the video: one of my identical twin children can roll their tongue & the other still hasn't figured it out XD
no context other than this was a quick photoshop necessary to make a deal while riffing with a coworker before lunch
November 13, 2025 at 9:05 PM
no context other than this was a quick photoshop necessary to make a deal while riffing with a coworker before lunch
mood is set
Let's read the last book of Twilight
vampires by the campfire
Let's read the last book of Twilight
vampires by the campfire
November 9, 2025 at 2:50 AM
mood is set
Let's read the last book of Twilight
vampires by the campfire
Let's read the last book of Twilight
vampires by the campfire
Reposted by Victor Geislinger
One of these pitch ideas might be of interest to linguists who are looking to write for a general audience!
November 8, 2025 at 5:07 PM
One of these pitch ideas might be of interest to linguists who are looking to write for a general audience!
Super interesting to me on the model results in this new Oolong dataset re: questins that involves aggregation over a long context (love the name)
I wondered along the lines of how well LLMs do in long-contedt— not generally amazing in some contexts according to this XD
arxiv.org/abs/2511.02817
I wondered along the lines of how well LLMs do in long-contedt— not generally amazing in some contexts according to this XD
arxiv.org/abs/2511.02817
November 8, 2025 at 4:23 PM
Super interesting to me on the model results in this new Oolong dataset re: questins that involves aggregation over a long context (love the name)
I wondered along the lines of how well LLMs do in long-contedt— not generally amazing in some contexts according to this XD
arxiv.org/abs/2511.02817
I wondered along the lines of how well LLMs do in long-contedt— not generally amazing in some contexts according to this XD
arxiv.org/abs/2511.02817
Frankly haven't watched this yet but plan on it— Sebastian does an amazing job knowledge sharing & educating about LLMs
My "The Building Blocks of Today’s and Tomorrow’s Language Models" talk at the PyTorch Conference is now up on YouTube! youtube.com/watch?v=nDl6...
The silver lining of my late arrival and rescheduling: There was no talk after mine, it's followed by a 30 min Q&A instead of just the usual 5 :)
The silver lining of my late arrival and rescheduling: There was no talk after mine, it's followed by a 30 min Q&A instead of just the usual 5 :)
The Building Blocks of Today’s and Tomorrow’s Language Models - Sebastian Raschka, RAIR Lab
YouTube video by PyTorch
youtube.com
November 8, 2025 at 4:11 PM
Frankly haven't watched this yet but plan on it— Sebastian does an amazing job knowledge sharing & educating about LLMs
Reposted by Victor Geislinger
DataRater can continuously+adaptively learn which examples will improve an ML model the most during training.
Delighted to have worked on this with @luisazintgraf.bsky.social, @dancalian.bsky.social, @gregfar.bsky.social, Iurii Kemaev, et al. (see full list at the of Luisa's thread).
Delighted to have worked on this with @luisazintgraf.bsky.social, @dancalian.bsky.social, @gregfar.bsky.social, Iurii Kemaev, et al. (see full list at the of Luisa's thread).
Excited to share our new paper, "DataRater: Meta-Learned Dataset Curation"!
We explore a fundamental question: How can we *automatically* learn which data is most valuable for training foundation models?
Paper: arxiv.org/pdf/2505.17895 to appear at @neuripsconf.bsky.social
Thread 👇
We explore a fundamental question: How can we *automatically* learn which data is most valuable for training foundation models?
Paper: arxiv.org/pdf/2505.17895 to appear at @neuripsconf.bsky.social
Thread 👇
November 6, 2025 at 3:43 PM
DataRater can continuously+adaptively learn which examples will improve an ML model the most during training.
Delighted to have worked on this with @luisazintgraf.bsky.social, @dancalian.bsky.social, @gregfar.bsky.social, Iurii Kemaev, et al. (see full list at the of Luisa's thread).
Delighted to have worked on this with @luisazintgraf.bsky.social, @dancalian.bsky.social, @gregfar.bsky.social, Iurii Kemaev, et al. (see full list at the of Luisa's thread).
Morning's a little wild so far
Woke up at 4am to bike to the bus to get to the work office (it's been a bit) only to realize ~½ there that I forgot my work ID. So biked all the way back & couldn't find it. Contemplating what next, my kid finds it under my desk!
So I'm just now at the bus stop :D
Woke up at 4am to bike to the bus to get to the work office (it's been a bit) only to realize ~½ there that I forgot my work ID. So biked all the way back & couldn't find it. Contemplating what next, my kid finds it under my desk!
So I'm just now at the bus stop :D
November 6, 2025 at 1:59 PM
Morning's a little wild so far
Woke up at 4am to bike to the bus to get to the work office (it's been a bit) only to realize ~½ there that I forgot my work ID. So biked all the way back & couldn't find it. Contemplating what next, my kid finds it under my desk!
So I'm just now at the bus stop :D
Woke up at 4am to bike to the bus to get to the work office (it's been a bit) only to realize ~½ there that I forgot my work ID. So biked all the way back & couldn't find it. Contemplating what next, my kid finds it under my desk!
So I'm just now at the bus stop :D
A movie you've seen more than seven times with a gif.
November 4, 2025 at 12:44 AM
A movie you've seen more than seven times with a gif.
I've been playing Factorio this morning while my 5yr olds watched, suggested things I do, and did 'hair salon' with me
It's been a good morning
It's been a good morning
November 2, 2025 at 5:11 PM
I've been playing Factorio this morning while my 5yr olds watched, suggested things I do, and did 'hair salon' with me
It's been a good morning
It's been a good morning