Marco
@mcognetta.bsky.social
Language and keyboard stuff at Google + PhD student at Tokyo Institute of Technology.
I like computers and Korean and computers-and-Korean and high school CS education.
Georgia Tech → 연세대학교 → 東京工業大学.
https://theoreticallygoodwithcomputers.com/
I like computers and Korean and computers-and-Korean and high school CS education.
Georgia Tech → 연세대학교 → 東京工業大学.
https://theoreticallygoodwithcomputers.com/
Pinned
Marco
@mcognetta.bsky.social
· Jan 5
A lot of you followed me due to #NLP, but I like to post about #chess (especially computer chess), #programming (especially puzzles, code golf, etc), and machine learning.
And some less technical stuff like #Korean, #Esperanto, and #trains (mostly in Japan, just due to proximity).
And some less technical stuff like #Korean, #Esperanto, and #trains (mostly in Japan, just due to proximity).
I've been blessed with an influx of new followers (thanks!).
Since you are here, here are a few of my favorite posts.
Since you are here, here are a few of my favorite posts.
A lot of you followed me due to #NLP, but I like to post about #chess (especially computer chess), #programming (especially puzzles, code golf, etc), and machine learning.
And some less technical stuff like #Korean, #Esperanto, and #trains (mostly in Japan, just due to proximity).
And some less technical stuff like #Korean, #Esperanto, and #trains (mostly in Japan, just due to proximity).
January 29, 2026 at 6:00 AM
I've been blessed with an influx of new followers (thanks!).
Since you are here, here are a few of my favorite posts.
Since you are here, here are a few of my favorite posts.
Reposted by Marco
Hello!
This is a reminder that @cornelltech.bsky.social runs a Red Team Clinic that provides a *free* safety consultation to nonprofits / public sector orgs that are developing a public-facing AI tool and want to stress-test it for possible abuse vectors.
Applications welcome on a rolling basis:
This is a reminder that @cornelltech.bsky.social runs a Red Team Clinic that provides a *free* safety consultation to nonprofits / public sector orgs that are developing a public-facing AI tool and want to stress-test it for possible abuse vectors.
Applications welcome on a rolling basis:
‘Red team’ students stress-test NYC health department’s AI | Cornell Chronicle
People usually strive to be their true, authentic selves, but this fall, five master’s students at Cornell Tech adopted not only alter egos but also “bad intent,” in an effort to make AI safer for hea...
news.cornell.edu
January 28, 2026 at 9:33 PM
Hello!
This is a reminder that @cornelltech.bsky.social runs a Red Team Clinic that provides a *free* safety consultation to nonprofits / public sector orgs that are developing a public-facing AI tool and want to stress-test it for possible abuse vectors.
Applications welcome on a rolling basis:
This is a reminder that @cornelltech.bsky.social runs a Red Team Clinic that provides a *free* safety consultation to nonprofits / public sector orgs that are developing a public-facing AI tool and want to stress-test it for possible abuse vectors.
Applications welcome on a rolling basis:
Has history taught us nothing?
January 28, 2026 at 9:12 PM
Has history taught us nothing?
Reposted by Marco
Reposted by Marco
Our journey at Sakana AI is just getting started.
We are looking for people to help us pioneer the next generation of AI—building from Japan to the world.
Join us: sakana.ai/careers
We are looking for people to help us pioneer the next generation of AI—building from Japan to the world.
Join us: sakana.ai/careers
January 25, 2026 at 4:56 AM
Our journey at Sakana AI is just getting started.
We are looking for people to help us pioneer the next generation of AI—building from Japan to the world.
Join us: sakana.ai/careers
We are looking for people to help us pioneer the next generation of AI—building from Japan to the world.
Join us: sakana.ai/careers
Reposted by Marco
The #JuliaCon Global 2026 call for proposals is open! We have a host of exciting minisymposia and we look forward to your talks!
Find more information on juliacon.org/2026/cfp/ and submit your proposal until February 28th at pretalx.com/juliacon-202...
#julia @julialang.org
Find more information on juliacon.org/2026/cfp/ and submit your proposal until February 28th at pretalx.com/juliacon-202...
#julia @julialang.org
January 23, 2026 at 9:37 PM
The #JuliaCon Global 2026 call for proposals is open! We have a host of exciting minisymposia and we look forward to your talks!
Find more information on juliacon.org/2026/cfp/ and submit your proposal until February 28th at pretalx.com/juliacon-202...
#julia @julialang.org
Find more information on juliacon.org/2026/cfp/ and submit your proposal until February 28th at pretalx.com/juliacon-202...
#julia @julialang.org
Reposted by Marco
Remix timeline: mix your timelines with a custom distribution. Another awesome feature in the custom client. Exactly what I was looking for. Thanks @mariaa.bsky.social 😄👍
January 23, 2026 at 3:34 AM
Remix timeline: mix your timelines with a custom distribution. Another awesome feature in the custom client. Exactly what I was looking for. Thanks @mariaa.bsky.social 😄👍
Reposted by Marco
I can't track down who it was, but someone on here suggested making a "Remix" feed that pulls from all your pinned feeds while removing duplicates. I made something like that for Lea and it's my new favorite feed! Any other suggestions along these lines, please share.
January 22, 2026 at 7:21 PM
I can't track down who it was, but someone on here suggested making a "Remix" feed that pulls from all your pinned feeds while removing duplicates. I made something like that for Lea and it's my new favorite feed! Any other suggestions along these lines, please share.
I'm always surprised when top_k doesn't work in numpy. It's such a weird omission from an otherwise amazing library.
There have been discussions about it for *years*, but it still hasn't landed.
Here's a cool write up from an undergrad that took it on as an intern project:
There have been discussions about it for *years*, but it still hasn't landed.
Here's a cool write up from an undergrad that took it on as an intern project:
labs.quansight.org
January 22, 2026 at 5:59 AM
I'm always surprised when top_k doesn't work in numpy. It's such a weird omission from an otherwise amazing library.
There have been discussions about it for *years*, but it still hasn't landed.
Here's a cool write up from an undergrad that took it on as an intern project:
There have been discussions about it for *years*, but it still hasn't landed.
Here's a cool write up from an undergrad that took it on as an intern project:
Do you like tokenization? Or better yet, do you hate tokenization and want to make it better?
Merge with us at the Tokenization Discord.
Merge with us at the Tokenization Discord.
January 22, 2026 at 3:27 AM
Do you like tokenization? Or better yet, do you hate tokenization and want to make it better?
Merge with us at the Tokenization Discord.
Merge with us at the Tokenization Discord.
This happens to me ~once a week and I always panic.
I'm printing this out to put on my wall.
I'm printing this out to put on my wall.
oh shit! I tried to commit a file that should be ignored!
permalink: wizardzines.com/comics/oh-sh...
from our zine "Oh shit, git!": wizardzines.com/zines/oh-shi...
permalink: wizardzines.com/comics/oh-sh...
from our zine "Oh shit, git!": wizardzines.com/zines/oh-shi...
January 21, 2026 at 9:46 PM
This happens to me ~once a week and I always panic.
I'm printing this out to put on my wall.
I'm printing this out to put on my wall.
Reposted by Marco
South Korea will release a new set of commemorative stamps featuring baby animals depicted with their lesser-known Korean names, in a move expected to attract collectors interested in linguistics as well as wildlife, the Ministry of Science and ICT said Wednesday.
www.koreaherald.com/article/1066...
www.koreaherald.com/article/1066...
Old Korean words come alive in new baby animal stamps
South Korea will release a new set of commemorative stamps featuring baby animals depicted with their lesser-known Korean names, in a move expected to attract c
www.koreaherald.com
January 21, 2026 at 6:56 AM
South Korea will release a new set of commemorative stamps featuring baby animals depicted with their lesser-known Korean names, in a move expected to attract collectors interested in linguistics as well as wildlife, the Ministry of Science and ICT said Wednesday.
www.koreaherald.com/article/1066...
www.koreaherald.com/article/1066...
About a month before the attempted coup, I was on a KTX to Seoul and was standing in the area next to the VIP car.
A few minutes into the ride, Han Duck-soo walked out of the VIP car to take a phone call.
Anyway, he is now about to spend 20+ years in prison.
A few minutes into the ride, Han Duck-soo walked out of the VIP car to take a phone call.
Anyway, he is now about to spend 20+ years in prison.
A South Korean court has found former Prime Minister Han Duck-soo guilty of insurrection and criminal conduct.
www.yna.co.kr/view/AKR2026...
www.yna.co.kr/view/AKR2026...
[속보] 법원, 한덕수 '계엄 문건' 위증 혐의도 인정 | 연합뉴스
(
www.yna.co.kr
January 21, 2026 at 6:38 AM
About a month before the attempted coup, I was on a KTX to Seoul and was standing in the area next to the VIP car.
A few minutes into the ride, Han Duck-soo walked out of the VIP car to take a phone call.
Anyway, he is now about to spend 20+ years in prison.
A few minutes into the ride, Han Duck-soo walked out of the VIP car to take a phone call.
Anyway, he is now about to spend 20+ years in prison.
Reposted by Marco
GSoC 2026 Mentoring org applications now open! 🚀
Inspire tomorrow’s developers with your open source project. Application period January 19 - February 3, 2026.
➡️ Read all the details in our GSoC Blog here: goo.gle/gsoc-2026-me...
Inspire tomorrow’s developers with your open source project. Application period January 19 - February 3, 2026.
➡️ Read all the details in our GSoC Blog here: goo.gle/gsoc-2026-me...
January 19, 2026 at 8:30 PM
GSoC 2026 Mentoring org applications now open! 🚀
Inspire tomorrow’s developers with your open source project. Application period January 19 - February 3, 2026.
➡️ Read all the details in our GSoC Blog here: goo.gle/gsoc-2026-me...
Inspire tomorrow’s developers with your open source project. Application period January 19 - February 3, 2026.
➡️ Read all the details in our GSoC Blog here: goo.gle/gsoc-2026-me...
Huh, TIL `json.loads` is called that because the `s` stands for "string". I always just guessed between `json.load` and `json.loads` when I needed to do it on the fly.
January 19, 2026 at 6:04 PM
Huh, TIL `json.loads` is called that because the `s` stands for "string". I always just guessed between `json.load` and `json.loads` when I needed to do it on the fly.
Reposted by Marco
Sakana has had some bangers in the past few months.
Introducing RePo: Language Models with Context Re-Positioning
Standard LLMs force a rigid linear structure on context, treating physical proximity as relevance. Cognitive Load Theory suggests this is inefficient—models waste capacity managing noise instead of reasoning.
arxiv.org/abs/2512.14391
Standard LLMs force a rigid linear structure on context, treating physical proximity as relevance. Cognitive Load Theory suggests this is inefficient—models waste capacity managing noise instead of reasoning.
arxiv.org/abs/2512.14391
January 19, 2026 at 1:05 AM
Sakana has had some bangers in the past few months.
Oh this is a great list. A lot of the ML starter packs I know of are filled with the same names, but this one has a lot of new ones for me.
i updated this go.bsky.app/LFAZcGE
January 17, 2026 at 7:03 PM
Oh this is a great list. A lot of the ML starter packs I know of are filled with the same names, but this one has a lot of new ones for me.
Reposted by Marco
I'm in awe of the jubeat* version naming scheme. Software companies could learn a thing or two.
*a popular Japanese rhythm arcade game; think musical electronic wack-a-mole
en.wikipedia.org/wiki/Jubeat?...
*a popular Japanese rhythm arcade game; think musical electronic wack-a-mole
en.wikipedia.org/wiki/Jubeat?...
January 16, 2026 at 10:52 PM
I'm in awe of the jubeat* version naming scheme. Software companies could learn a thing or two.
*a popular Japanese rhythm arcade game; think musical electronic wack-a-mole
en.wikipedia.org/wiki/Jubeat?...
*a popular Japanese rhythm arcade game; think musical electronic wack-a-mole
en.wikipedia.org/wiki/Jubeat?...
Reposted by Marco
Meet TranslateGemma. 💎
✅ Open weights (4B, 12B, 27B)
✅ 55 languages + 100s more in training data
✅ Multimodal capabilities (image text)
Blog: blog.google/innovation-a...
Paper: arxiv.org/pdf/2601.09012
Model: huggingface.co/collections/...
Cookbook: colab.research.google.com/github/googl...
✅ Open weights (4B, 12B, 27B)
✅ 55 languages + 100s more in training data
✅ Multimodal capabilities (image text)
Blog: blog.google/innovation-a...
Paper: arxiv.org/pdf/2601.09012
Model: huggingface.co/collections/...
Cookbook: colab.research.google.com/github/googl...
TranslateGemma: A new suite of open translation models
TranslateGemma is a new family of open translation models built on Gemma 3.
blog.google
January 16, 2026 at 7:50 PM
Meet TranslateGemma. 💎
✅ Open weights (4B, 12B, 27B)
✅ 55 languages + 100s more in training data
✅ Multimodal capabilities (image text)
Blog: blog.google/innovation-a...
Paper: arxiv.org/pdf/2601.09012
Model: huggingface.co/collections/...
Cookbook: colab.research.google.com/github/googl...
✅ Open weights (4B, 12B, 27B)
✅ 55 languages + 100s more in training data
✅ Multimodal capabilities (image text)
Blog: blog.google/innovation-a...
Paper: arxiv.org/pdf/2601.09012
Model: huggingface.co/collections/...
Cookbook: colab.research.google.com/github/googl...
Just for fun, I tested ChatGPT, Claude, and Gemini on this bug by asking them to review the original code (linked below).
ChatGPT, Gemini, and Claude Opus got it first try and Claude Sonnet got it after very slight prodding.
Pretty impressive, as they were given very little context.
ChatGPT, Gemini, and Claude Opus got it first try and Claude Sonnet got it after very slight prodding.
Pretty impressive, as they were given very little context.
January 16, 2026 at 7:36 PM
Just for fun, I tested ChatGPT, Claude, and Gemini on this bug by asking them to review the original code (linked below).
ChatGPT, Gemini, and Claude Opus got it first try and Claude Sonnet got it after very slight prodding.
Pretty impressive, as they were given very little context.
ChatGPT, Gemini, and Claude Opus got it first try and Claude Sonnet got it after very slight prodding.
Pretty impressive, as they were given very little context.
The tokenizer isn't even to blame here, but man it really feels like it should be.
ooooooooo that’s real bad 😭 you’re all gonna need to update your local copies of MMLU soon
TIGER-Lab/MMLU-Pro · Leading Whitespace Leaks Correct Choice
It seems like certain categories have an oddity that an empty space is the first character for a subset correct answers. This means that a strategy of random guessing + pick-if-starts-with-space wi...
huggingface.co
January 16, 2026 at 6:31 PM
The tokenizer isn't even to blame here, but man it really feels like it should be.