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Johannes

@johko.bsky.social
704 followers 594 following 55 posts

Data Scientist | Computer Vision Engineer | AI Educator | Hugging Face Fellow 🤗 // johko.github.io //

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Johannes @johko.bsky.social · 23/09/2026
🌼Wildflowers don't grow alone 🌼 They spread, and make space for each other and other species in the cracks. 🌼🌼🌼 That's #MozFest. Grab your ticket and join us in Barcelona, Oct 28–30. bit.ly/4uNRPZb 🎟 Use my code JKAMB25 for 25% off tickets.
bit.ly
Mozilla Festival 2026, Wed, Oct 28th, 2026 @ 9:00 AM Mozilla Foundation
Accelevents - Mozilla Festival 2026 - Wednesday, October 28, 2026 | Friday, October 30, 2026 at RECINTE FABRA I COATS, Carrer de Sant Adrià, Barcelona, Spain. Find event and ticket information.
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Johannes @johko.bsky.social · 03/09/2026
My talk from @europython.eu about a murder case and some Voice AI explanations on the side, is available on Youtube since about two weeks. Feel free to check it out: www.youtube.com/watch?v=5ZEs...
youtube.com
Robot Holmes and the Silenced Witness: A Noir Guide to Real-Time Voice AI - Johannes Kolbe
YouTube video by EuroPython Conference
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Johannes @johko.bsky.social · 15/07/2026
@europython.eu let's go! 🎉
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Johannes @johko.bsky.social · 14/07/2026
Road to @europython.eu ! Looking forward to meet some old and new friends in Krakow 🤗
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Johannes @johko.bsky.social · 06/07/2026
I like to believe that in a few hundred years the people will look back at the financial elite of our time, the same as we look back at kings and rulers of the medieval times. Not all are doing bad, but the power they are wielding is just insane and in no way justified.
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Johannes @johko.bsky.social · 24/06/2026
At least AI thinks my talks are popular 😉: "Robot Holmes" is a popular, story-driven tech talk series at EuroPython created by data scientist Johannes Kolbe. It teaches real-world ML, Computer Vision, and Voice AI concepts using engaging, noir-style murder mysteries set in the city of "MLington"
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Johannes @johko.bsky.social · 13/06/2026
I'm thrilled to be back at EuroPython this year and present a new case for Robot Holmes 😉
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Johannes @johko.bsky.social · 10/06/2026
I cannot help but wonder what happened to Fable 1-4 🤔
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Johannes @johko.bsky.social · 09/06/2026
It was a pleasure to speak at #bbuz. I loved the overall vibe and met amazing people. Thanks for the photo @autosysops.bsky.social :)
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Leo Visser @autosysops.bsky.social · 09/06/2026
Time for Johannes Kolbe at #bbuzz to talk about #WebAI and how to escape the #Server and run your #AI in the browser!
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Johannes @johko.bsky.social · 21/05/2026
LLM Blind Date One prompt, three answers - which model is from where? huggingface.co/spaces/johko... I built a little demo where you give three models (Apertus, Llama, Qwen3) the same prompt and in the end you have to guess which is which just based on their answers. GIve it a try! ;)
huggingface.co
Llm Blind Date - a Hugging Face Space by johko
3 LLMs - guess which is from the US, Europe or China
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Berlin Buzzwords @berlinbuzzwords.de · 12/05/2026
Johannes Kolbe (@johko.bsky.social) is joining #bbuzz26 to investigate Client-Side AI using WebGPU, ONNX Runtime, and Transformers.js and will explore the reality of hardware access, model size, and the 2026 trade-offs of browser based execution. Learn about this session 2026.berlinbuzzwords...
Berlin Buzzwords branded graphic with the bbuzz mascot. Text reads "Talk, #operations - Escaping the Cloud: High-Performance AI in your Browser."Photo of Johannes Kolbe on a red and purple Berlin Buzzwords branded background with his name displayed at the bottom.Berlin Buzzwords graphic with the stylised ">BLN BZZ/ WRDS" logo on a red and purple diagonal striped background. Text at the bottom reads "7-9 June 2026, Kulturbrauerei & Online, 2026.berlinbuzzwords.de."
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Johannes @johko.bsky.social · 23/04/2026
PhD level intelligence they said. Not for German quotation marks it seems 🙈
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Johannes @johko.bsky.social · 20/04/2026
Gave my first ever lecture today and boy did I overestimate the motivation of the students 😅
media.tenor.com
a young boy wearing a red headband and a red shirt is laying in a hospital bed
ALT: a young boy wearing a red headband and a red shirt is laying in a hospital bed
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Johannes @johko.bsky.social · 13/04/2026
I still don't get why in Python it is: ", ".join(list) instead of list.join(", ") Every time I see it, it just feels wrong
media.tenor.com
a man wearing glasses and a shirt that says donut on it says it makes me feel weird
ALT: a man wearing glasses and a shirt that says donut on it says it makes me feel weird
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Johannes @johko.bsky.social · 16/02/2026
I have the feeling that we're running into some big issues with the way we are throwing AI into products and neglecting a lot of software engineering best practices. The tech debt we are creating these days will eat min. double the working hours we are saving by not thinking things through.
media.tenor.com
a cat is sitting in front of a laptop computer on a couch .
ALT: a cat is sitting in front of a laptop computer on a couch .
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Johannes @johko.bsky.social · 15/02/2026
Book Sunday: Sometimes I wonder if my first edition of Aurélien Géron's fantastic book will be worth something someday 😉
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Johannes @johko.bsky.social · 11/02/2026
My reaction, every time my (storytelling) talk proposals are refused by Python conferences
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Johannes @johko.bsky.social · 08/02/2026
2018 Russia 2022 Qatar 2026 USA
A meme of Fry from Futurama squinting his eyes, that reads "Not sure if World Autocracy Award Winners or FIFA World Cup Locations"
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Johannes @johko.bsky.social · 04/02/2026
What are some ethically good (or at least okay) smartphones on the market at the moment that also perform well? The random crashes of my phone are getting a bit out of hand lately 🙃 I can live with @fairphone.com and Shift phones, just wondering if there are any others I'm missing.
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Johannes @johko.bsky.social · 03/02/2026
It is unusually cold and icy in Germany since the beginning of the year. Yet I'm still baffled at the inability of most cities to clear sidewalks for people's safety for weeks now. In Berlin the hospitals are even complaining about an alarming amount of people coming in because they slipped on ice.
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Johannes @johko.bsky.social · 02/02/2026
Feels like Moltbook is yet another proof that humans like to be insulting, especially if they can hide behind something like agents and say "it wasn't me that said it, it was the AI"
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Johannes @johko.bsky.social · 02/02/2026
I love the field of Web AI! Models running in your browser can solve so many problems about API based approaches and you can build fun things with it already, e.g. this little physics playground powered by functon-gemma: huggingface.co/spaces/webml...
huggingface.co
FunctionGemma Physics Playground - a Hugging Face Space by webml-community
Use natural language to solve fun physics simulation puzzles
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Johannes @johko.bsky.social · 01/02/2026
Sundays are (still) for books. Currently going through this one and it reminds me that you never can imagine the horrors of war until you are in one.
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Johannes @johko.bsky.social · 31/01/2026
In the unlikely case of ever creating an AGI model, I still feel that it would either just dump all tasks back on us humans or be like Marvin from The Hitchhiker's Guide to the Galaxy (or both)
media.tenor.com
a man in a robe stands next to a robot that says life don t talk to me about life
ALT: a man in a robe stands next to a robot that says life don t talk to me about life
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Johannes @johko.bsky.social · 28/01/2026
1. I love to write! 2. I get a lot of satisfaction from putting words in a nice order. 3. I lack the time to do proper writing. 4. I turn to AI to create a nice, smooth text in a short time. 5. The satisfaction I get from it is much lower. 6. I like writing less. A vicious cycle 😞
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Amadeu Antonio Stiftung @amadeuantonio.bsky.social · 27/01/2026
Heute vor 81 Jahren wurde das Konzentrations- und Vernichtungslager Auschwitz befreit. Der Lagerkomplex Auschwitz ist heute Symbol für den industriellen Massenmord des #Holocaust und damit der systematischen Vernichtung der europäischen Juden. #WeRemember 1/x
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Johannes @johko.bsky.social · 25/01/2026
Okay so my plan was to do a week straight of casual, not very controversial posting here to see how this goes and get into a flow. But ffs US, get your shit together. At the rate this shit show is going I don't see me entering that country any time in the next 3 years (and probably beyond).
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Johannes @johko.bsky.social · 24/01/2026
Non-parents will probably never know the struggle with kids on weekends 🙈 And Saturday usually is the easy day for us. Can we just skip Sunday maybe?
media.tenor.com
a boy and a girl are climbing the walls in a room .
ALT: a boy and a girl are climbing the walls in a room .
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Johannes @johko.bsky.social · 23/01/2026
Any hacks on actually finishing a side project? I feel like whenever I get to the point of creating a repo with some structure, a new project idea comes around and feels way more interesting than what I'm working on.
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Johannes @johko.bsky.social · 22/01/2026
So with all the downskilling articles these days and in fear of my own forgetfulness, I decided it is time I start to only use the command line for git from today. I realize I forgot way too much since uni days 🙈
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Johannes @johko.bsky.social · 21/01/2026
I can't shake the feeling that something is different in the AI world over the last weeks. Feels like no gigantic hyped up shit has been going on, which makes me wonder if AI-Hype-companies (especially OpenAI) are running out of material or preparing an even bigger ugly bag of surreal marketing.
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Johannes @johko.bsky.social · 15/04/2025
@hf.co Computer Vision Hangout on Wednesday, 16th April at 7.15pm CEST(UTC+2) I'll be talking about what is new in Computer Vision at Hugging Face, we'll have a presentation by a community member about his work and a fun Computer Vision Quiz! Join us on the HF discord server: HF.co/join/discord
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Johannes @johko.bsky.social · 02/04/2025
🐍"PEP 751 – A file format to record Python dependencies for installation reproducibility" has been accepted 🥳 The 31st March should be marked a special day for all Pythonistas, commemorating this (long overdue) achievement
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Johannes @johko.bsky.social · 01/04/2025
ChatGPT image generation seems to make a lot of headlines recently. So I collected some use cased and experimented a bit myself. As a result I created this (not very serious) presentation, called "The End of Graphic Designers": www.canva.com/design/DAGjR...
canva.com
Amazingly Simple Graphic Design Software – Canva
Amazingly Simple Graphic Design Software – Canva
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Johannes @johko.bsky.social · 28/03/2025
With the new image generation capability in ChatGPT, the path to AGI is closer than ever! We can even skip steps 3 and 4 on the way 😉 (this post may contain sarcasm)
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Johannes @johko.bsky.social · 31/01/2025
📣 Slides, Slides, who wants some slides? 📣 Anyway, here are mine from my presentation on "Hallucinations in MLLMs" on the @hf.co discord. They are very similar to the ones I've used before for my PyCon Africa talk, just with a few additions. speakerdeck.com/johko/halluc...
speakerdeck.com
Hallucinations in Multimodal Large Language Models
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Johannes @johko.bsky.social · 24/01/2025
📚 ML Reading Group - 25th, Jan at 8.15pm CET 📚 Tomorrow I'm hosting my first Reading Group session of the year on the @hf.co discord server: discord.com/events/87954... We will look at Hallucinations in MLLMs, roughly following this paper: arxiv.org/abs/2404.18930
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Johannes @johko.bsky.social · 23/01/2025
Can't wait for the Stargate follow-up project: Stargate Atlantis "As we chose to worsen the climate crisis in favour of our batshit crazy AGI idea, we accidentally flooded some countries. But we figured out how to use sea water for cooling our servers, so AGI is pretty close now"
media.tenor.com
a statue of a mermaid holding a trident in the water
ALT: a statue of a mermaid holding a trident in the water
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Johannes @johko.bsky.social · 08/01/2025
Realizing this comic speaks the truth took a lot of anxiety out of the whole Code Review process for me.
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Johannes @johko.bsky.social · 07/01/2025
People coming over from Threads? I guess it is Starter Pack time again! Here is my contribution ;) go.bsky.app/Nik64nt
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Johannes @johko.bsky.social · 20/12/2024
🌟 Happening Today 🌟 at 8:30pm CET on 20th Dec we will have our End-of-Year Computer Vision Hangout on the @hf.co discord server: tinyurl.com/5t5ep7xc We'll have a look on what happened in 2024 at HF including datasets, new transformers integrations and much more. + we'll have a QUIZ!!! 🎉
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Reposted by Johannes
Timnit Gebru @timnitgebru.blacksky.app · 16/12/2024
Dear computer vision researchers, students & practitioners🔇🔇🔇 Remi Denton & I have written what I consider to be a comprehensive paper on the harms of computer vision systems reported to date & how people have proposed addressing them, from different angles. PDF: cdn.sanity.io/files/wc2kmx...
Screenshot of Table of Contents (Part 1)

Contents
1 Introduction 217
2 Positionality 221
3 Overview of Risks and Harms Associated with Computer
Vision Systems and Proposed Mitigation Strategies 223
3.1 Representational Harms . . . . . . . . . . . . . . . . . . . 223
3.2 Quality-of-Service and Allocative Harms . . . . . . . . . . 229
3.3 Interpersonal Harms . . . . . . . . . . . . . . . . . . . . . 237
3.4 Societal Harms: System Destabilization and Exacerbating
Inequalities . . . . . . . . . . . . . . . . . . . . . . . . . . 245
4 Frameworks and Principles for Computer Vision
Researchers 266
4.1 Guidelines for Responsible Data and Model Development . 267
4.2 Measurement Modeling . . . . . . . . . . . . . . . . . . . 271
4.3 Reflexivity . . . . . . . . . . . . . . . . . . . . . . . . . . 273
5 Reorientations of Computer Vision Research 276
5.1 Grounded in Historical Context and Considering
Power Dynamics . . . . . . . . . . . . . . . . . . . . . . . 276
5.2 Small, Task Specific . . . . . . . . . . . . . . . . . . . . . 279
5.3 Community-Rooted . . . . . . . . . . . . . . . . . . . . . 280Screenshot of Table of Contents (Part 2)

6 Systemic Change 285
6.1 Collective Action and Whistleblowing . . . . . . . . . . . . 285
6.2 Refusal/The Right not to Build Something . . . . . . . . . 287
6.3 Independent Funding Outside of Military and Multinational
Corporations . . . . . . . . . . . . . . . . . . . . . . . . . 289
7 Conclusion 291
References 293
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Johannes @johko.bsky.social · 17/12/2024
Feels like the Deepdream times were the slightly weird but innocent days of AI art
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Johannes @johko.bsky.social · 15/12/2024
Sundays are for books 📖 And while I like to read technical books, I also love to read novels. I'm a huge fan of the works by Sir Terry Pratchett and his timeless discworld series 🧙‍♂️ I feel Hex, thought up as an analogy to computers, also works great as an analogy for modern AI 🐜🐜🐜
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Johannes @johko.bsky.social · 13/12/2024
The sprint for crowd sourced annotations with argilla is in full swing over at data-is-better-together-fineweb-c.hf.space I've just contributed 100 examples to this dataset: data-is-better-together-fineweb-c.hf.space/share-your-p... Big thanks to @dvilasuero.hf.co, @nataliaelv.hf.co and team 🙌
data-is-better-together-fineweb-c.hf.space
nds - Neddersass’sch - Low German
Join and contribute to the dataset nds - Neddersass’sch - Low German
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Daniel Vila @dvilasuero.hf.co · 10/12/2024
Help shape the future of multilingual Open Source AI! Join the FineWeb 2 Community Annotation Sprint to create an open training dataset with full transparency and human validation in many languages. Review datasets in your language and help identify the best sources for training.
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Lichess @lichess.org · 06/12/2024
The Lichess database of games, puzzles, and engine evaluations is now on @hf.co - huggingface.co/Lichess. Billions of chess data points to download, query, and stream and we're excited to see what you'll build with it! ♟️ 🤗
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Johannes @johko.bsky.social · 05/12/2024
Robot Holmes is back 🕵️ Last year I gave the talk "Robot Holmes and the Vision-Language Murder Mysteries", an intro to VLM models and tasks, at @pydatalondon.bsky.social and @europython.bsky.social. Now I started to actually turn it into a story here: johko.github.io/robot-holmes...
johko.github.io
Robot Holmes 1
Robot Holmes and the Vision-Language Murder Mysteries #1
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