Mattias Villani

So the world will continue to wonder why 'Aki prefers student_t(3,0,1), something about some shape of some curve, he put it on the blackboard and I can't remember'. 😂

Excellent illustration!

Uncertainty in the LLM era - Science, more than scale Today's AI narrative is anchored in scale, and models are far from textbook statistical modeling. And yet, the plague that are hallucination shows us th…

Uncertainty in the LLM era - Science, more than scale
speakerdeck.com/gaelvaroquau...

My #EurIPS keynote, on scale, uncertainty, and narratives in AI

A close up of the trophy for the "prix science ouverte du logiciel libre de recherche, édition 2025" (open science prize for free research software, 2025 edition)

My baby #JuliaLang package got an award!
DifferentiationInterface.jl just received a national prize for open-source research software and I couldn't be prouder. We started this from a vague dream with @adrianhill.de, and reached 1000 dependents and 100k downloads last month.
Research != just papers.

We are recruiting a PhD student at Chalmers University of Technology, Gothenburg, Sweden.
The project explores Bayesian Experimental Design for real-time, risk-aware trajectory planning in autonomous driving, combining Bayesian inference and optimal control

Apply by November 30
tinyurl.com/4mr6u79y

Do this, if you can! Your work will reach thousands of thankful Bayesians.

Well, at least before I got these crayons, apparently made out of angel tears.

Photo of me after an intensive Bayes lecture at the blackboard.

Very nice 70 page intro to Julia in these notes. Well done!

Julia v1.12.0 has been released The Julia developers are pleased to announce the release of Julia v1.12.0, the twelfth minor release in the 1.x series. Some folks put together a blog post highlighting some of the most exciting new f...

Julia v1.12 is out 🎈🙃

#JuliaLang

discourse.julialang.org/t/julia-v1-1...

Great to see the forecast package from R in native Julia.
One less use case for RCall.jl in my workflow.

This is a wonderful side-by-side comparison!

So me and my buddy chatGPT are now into using Lua filters in the Quarto YAML to hook into the pandoc AST to modify the inline LaTeX at compile time to convert LaTeX syntax to things that render correctly to html.

It works, that is all I can tell you.

"Spotify for Linux is a labor of love from our engineers that wanted to listen to Spotify on their Linux development machines. They work on it in their spare time and it is currently not a platform that we actively support."

Honest, but weird when you have the money and passionate people.

#linux

Tell me more! Do NeurIPS and ICML accept Typst source files now?

We also wish a pleasant weekend to the couriers who transform our parcels in their own way, #stats!

Very sorry to hear that you are struggling, Cameron.

Is just my imagination, or is the battery better again after last update? Feels so?

And the other way around.

Yes, and there should be more cross-fertilization between Active learning in machine learning and experimental design in Statistics.

His fellow Nobel prize winner Tom Sargent uses Python and Julia.
www.tomsargent.com
I don't follow macro so closely nowadays, but my impression is that #julialang is getting popular, as it is the natural progression from Matlab (open source, fast and with linalg syntax similar to Matlab).

Chris used to have this code only in Matlab, but added R versions some 15-20 years ago. He switched to R when the Mathworks started to get gready with also for academics (who popularized Matlab about economists).

An excellent way to feel like a complete loser is to try to do something semi-advanced with LaTeX.

It is also a great way to waste an afternoon.

Sounds wonderful!

Very happy to see this! How many came to listen? What other talks were given in the session?

Introduction to Julia for R users – Nicola Rennie This blog post will give R users an overview of what Julia is and why they might want to use it, introduce some data processing Julia packages, and show how they can incorporate Julia into existing R ...

If you're interested in learning #JuliaLang and are currently an #RStats user (or even if you're not!), then here's a little introduction to getting started! 📊

Blog post: nrennie.rbind.io/blog/introdu...

#QuartoPub #Julia @tidierjl.bsky.social

My Bayesian Data Analysis course at Aalto is starting in 20mins. There are now 375 registered students, but as the course is not compulsory for most, I expect about 230 students to finish it. All the course material is available online at avehtari.github.io/BDA_course_A...

Oh, that is quite sad. Sorry to hear that.

What is the lost cinema? Another gem that closed down?

Yes, fair enough. I am just a little bitter that Twitter when away from us. I learned a lot of useful things from people when I was active on Twitter (and also on Google+ back in the days). Hopefully, this place can get close to that.