Johannes Zenn
@johanneszenn.bsky.social
PhD Student in Machine Learning @unituebingen.bsky.social, @ml4science.bsky.social, @tuebingen-ai.bsky.social, IMPRS-IS; previously intern @vectorinstitute.ai; jzenn.github.io
A new recording of our FridayTalks@Tübingen series is online!
Strategic Hypothesis Testing
by
@yatongchen.bsky.social
Watch here: youtu.be/VcKpRuUi4cQ
Strategic Hypothesis Testing
by
@yatongchen.bsky.social
Watch here: youtu.be/VcKpRuUi4cQ
Strategic Hypothesis Testing - [Yatong Chen]
YouTube video by Friday Talks Tübingen
youtu.be
October 22, 2025 at 10:11 AM
A new recording of our FridayTalks@Tübingen series is online!
Strategic Hypothesis Testing
by
@yatongchen.bsky.social
Watch here: youtu.be/VcKpRuUi4cQ
Strategic Hypothesis Testing
by
@yatongchen.bsky.social
Watch here: youtu.be/VcKpRuUi4cQ
Reposted by Johannes Zenn
🚀 The new call for Principal Investigators as Hector Endowed Fellows at the ELLIS Institute Tübingen is now open!
These positions offer the exciting possibility of co-appointments with the @mpi-is.bsky.social and the @tuebingen-ai.bsky.social .
📌 Apply here: institute-tue.ellis.eu/en/jobs/PI-c...
These positions offer the exciting possibility of co-appointments with the @mpi-is.bsky.social and the @tuebingen-ai.bsky.social .
📌 Apply here: institute-tue.ellis.eu/en/jobs/PI-c...
Principal Investigator Positions (m/f/d) as Hector Endowed Fellows of the ELLIS Institute Tübingen
institute-tue.ellis.eu
October 17, 2025 at 9:41 AM
🚀 The new call for Principal Investigators as Hector Endowed Fellows at the ELLIS Institute Tübingen is now open!
These positions offer the exciting possibility of co-appointments with the @mpi-is.bsky.social and the @tuebingen-ai.bsky.social .
📌 Apply here: institute-tue.ellis.eu/en/jobs/PI-c...
These positions offer the exciting possibility of co-appointments with the @mpi-is.bsky.social and the @tuebingen-ai.bsky.social .
📌 Apply here: institute-tue.ellis.eu/en/jobs/PI-c...
A new recording of our FridayTalks@Tübingen series is online!
The Curse of Depth in Large Language Models
by
@shiweiliu.bsky.social
Watch here: youtu.be/knVOH3oM_-I
The Curse of Depth in Large Language Models
by
@shiweiliu.bsky.social
Watch here: youtu.be/knVOH3oM_-I
The Curse of Depth in Large Language Models - [Shiwei Liu]
YouTube video by Friday Talks Tübingen
m.youtube.com
September 26, 2025 at 6:37 AM
A new recording of our FridayTalks@Tübingen series is online!
The Curse of Depth in Large Language Models
by
@shiweiliu.bsky.social
Watch here: youtu.be/knVOH3oM_-I
The Curse of Depth in Large Language Models
by
@shiweiliu.bsky.social
Watch here: youtu.be/knVOH3oM_-I
Reposted by Johannes Zenn
I've been waiting some years to make this joke and now it’s real:
I conned somebody into giving me a faculty job!
I’m starting as a W1 Tenure-Track Professor at Goethe University Frankfurt in a week (lol), in the Faculty of CS and Math
and I'm recruiting PhD students 🤗
I conned somebody into giving me a faculty job!
I’m starting as a W1 Tenure-Track Professor at Goethe University Frankfurt in a week (lol), in the Faculty of CS and Math
and I'm recruiting PhD students 🤗
a man wearing a white shirt and tie smiles in front of a window
ALT: a man wearing a white shirt and tie smiles in front of a window
media.tenor.com
September 23, 2025 at 1:00 PM
I've been waiting some years to make this joke and now it’s real:
I conned somebody into giving me a faculty job!
I’m starting as a W1 Tenure-Track Professor at Goethe University Frankfurt in a week (lol), in the Faculty of CS and Math
and I'm recruiting PhD students 🤗
I conned somebody into giving me a faculty job!
I’m starting as a W1 Tenure-Track Professor at Goethe University Frankfurt in a week (lol), in the Faculty of CS and Math
and I'm recruiting PhD students 🤗
A new recording of our FridayTalks@Tübingen series is online!
AI Safety and Alignment
by
@maksym-andr.bsky.social
Watch here: youtu.be/7WRW8MDQ8bk
AI Safety and Alignment
by
@maksym-andr.bsky.social
Watch here: youtu.be/7WRW8MDQ8bk
AI Safety and Alignment - [Maksym Andriushchenko]
YouTube video by Friday Talks Tübingen
youtu.be
September 11, 2025 at 1:18 PM
A new recording of our FridayTalks@Tübingen series is online!
AI Safety and Alignment
by
@maksym-andr.bsky.social
Watch here: youtu.be/7WRW8MDQ8bk
AI Safety and Alignment
by
@maksym-andr.bsky.social
Watch here: youtu.be/7WRW8MDQ8bk
A new recording of our FridayTalks@Tübingen series is online!
Why LLM Benchmarks are Broken and How to Fix It?
by
Guanhua Zhang
Watch here: youtu.be/X820NwnHu-c
Why LLM Benchmarks are Broken and How to Fix It?
by
Guanhua Zhang
Watch here: youtu.be/X820NwnHu-c
Why LLM Benchmarks are Broken and How to Fix It? - [Guanhua Zhang]
YouTube video by Friday Talks Tübingen
youtu.be
September 1, 2025 at 1:08 PM
A new recording of our FridayTalks@Tübingen series is online!
Why LLM Benchmarks are Broken and How to Fix It?
by
Guanhua Zhang
Watch here: youtu.be/X820NwnHu-c
Why LLM Benchmarks are Broken and How to Fix It?
by
Guanhua Zhang
Watch here: youtu.be/X820NwnHu-c
Reposted by Johannes Zenn
Want to get started with theoretical analysis of probabilistic decision-making algos (bandits, BO, planning, etc.), but don't know where to start? Existing literature too dense to parse?
arxiv.org/abs/2508.21620
I've written a self-contained introductory monograph on this!
arxiv.org/abs/2508.21620
I've written a self-contained introductory monograph on this!
September 1, 2025 at 11:15 AM
Want to get started with theoretical analysis of probabilistic decision-making algos (bandits, BO, planning, etc.), but don't know where to start? Existing literature too dense to parse?
arxiv.org/abs/2508.21620
I've written a self-contained introductory monograph on this!
arxiv.org/abs/2508.21620
I've written a self-contained introductory monograph on this!
A new recording of our FridayTalks@Tübingen series is online!
How much can we forget about Data Contamination?
by
@sbordt.bsky.social
Watch here: youtu.be/T9Y5-rngOLg
How much can we forget about Data Contamination?
by
@sbordt.bsky.social
Watch here: youtu.be/T9Y5-rngOLg
How much can we forget about Data Contamination? - [Sebastian Bordt]
YouTube video by Friday Talks Tübingen
youtu.be
August 29, 2025 at 7:05 AM
A new recording of our FridayTalks@Tübingen series is online!
How much can we forget about Data Contamination?
by
@sbordt.bsky.social
Watch here: youtu.be/T9Y5-rngOLg
How much can we forget about Data Contamination?
by
@sbordt.bsky.social
Watch here: youtu.be/T9Y5-rngOLg
A new recording of our FridayTalks@Tübingen series is online!
Adversarially Robust CLIP Models Can Induce Better (Robust) Perceptual Metrics
by
@chs20.bsky.social & Naman Deep Singh
Watch here: www.youtube.com/watch?v=sK9Y...
Adversarially Robust CLIP Models Can Induce Better (Robust) Perceptual Metrics
by
@chs20.bsky.social & Naman Deep Singh
Watch here: www.youtube.com/watch?v=sK9Y...
Adversarially Robust CLIP Models Can Induce Better (Robust) Perceptual Metrics
YouTube video by Friday Talks Tübingen
www.youtube.com
August 19, 2025 at 5:58 AM
A new recording of our FridayTalks@Tübingen series is online!
Adversarially Robust CLIP Models Can Induce Better (Robust) Perceptual Metrics
by
@chs20.bsky.social & Naman Deep Singh
Watch here: www.youtube.com/watch?v=sK9Y...
Adversarially Robust CLIP Models Can Induce Better (Robust) Perceptual Metrics
by
@chs20.bsky.social & Naman Deep Singh
Watch here: www.youtube.com/watch?v=sK9Y...
A new recording of our FridayTalks@Tübingen series is online!
Large Language Models Are Zero-Shot Problem Solvers—Just Like Modern Computers
by
Tim Z. Xiao
Watch here: www.youtube.com/watch?v=ySHu...
Large Language Models Are Zero-Shot Problem Solvers—Just Like Modern Computers
by
Tim Z. Xiao
Watch here: www.youtube.com/watch?v=ySHu...
Large Language Models Are Zero-Shot Problem Solvers—Just Like Modern Computers - [Tim Xiao]
YouTube video by Friday Talks Tübingen
www.youtube.com
August 11, 2025 at 12:40 PM
A new recording of our FridayTalks@Tübingen series is online!
Large Language Models Are Zero-Shot Problem Solvers—Just Like Modern Computers
by
Tim Z. Xiao
Watch here: www.youtube.com/watch?v=ySHu...
Large Language Models Are Zero-Shot Problem Solvers—Just Like Modern Computers
by
Tim Z. Xiao
Watch here: www.youtube.com/watch?v=ySHu...
A new recording of our FridayTalks@Tübingen series is online!
Effortless, Simulation-Efficient Bayesian Inference using Tabular Foundation Models
by
@vetterj.bsky.social & Manuel Gloeckler from @mackelab.bsky.social
Watch here: youtube.com/watch?v=Wx2p...
Effortless, Simulation-Efficient Bayesian Inference using Tabular Foundation Models
by
@vetterj.bsky.social & Manuel Gloeckler from @mackelab.bsky.social
Watch here: youtube.com/watch?v=Wx2p...
Effortless, Simulation-Efficient Bayesian Inference using Tabular Foundation Models
YouTube video by Friday Talks Tübingen
youtube.com
August 5, 2025 at 7:07 AM
A new recording of our FridayTalks@Tübingen series is online!
Effortless, Simulation-Efficient Bayesian Inference using Tabular Foundation Models
by
@vetterj.bsky.social & Manuel Gloeckler from @mackelab.bsky.social
Watch here: youtube.com/watch?v=Wx2p...
Effortless, Simulation-Efficient Bayesian Inference using Tabular Foundation Models
by
@vetterj.bsky.social & Manuel Gloeckler from @mackelab.bsky.social
Watch here: youtube.com/watch?v=Wx2p...
Reposted by Johannes Zenn
📣 [Openings] I'm now an Assistant Prof @westernu.ca CS dept. Funded PhD & MSc positions available! Topics: large probabilistic models, decision-making under uncertainty, and apps in AI4Science. More on agustinus.kristia.de/openings/
July 4, 2025 at 10:55 PM
📣 [Openings] I'm now an Assistant Prof @westernu.ca CS dept. Funded PhD & MSc positions available! Topics: large probabilistic models, decision-making under uncertainty, and apps in AI4Science. More on agustinus.kristia.de/openings/
Reposted by Johannes Zenn
@unituebingen.bsky.social Tübingen has won 6 out of 9! Not too bad, is it? 👍 Congratulations to all winning teams!
Die #Exzellenzcluster stehen fest: Heute hat die Exzellenzkommission 70 Projekte zur Förderung ausgewählt. 45 Cluster werden fortgesetzt, 25 neu eingerichtet. Die Förderung beginnt ab 1. Jan. 2026 für 7 Jahre, die Fördersumme beträgt insg. 539 Mio. €/Jahr. Die Liste: www.dfg.de/resource/blo... 1/3
May 22, 2025 at 5:00 PM
@unituebingen.bsky.social Tübingen has won 6 out of 9! Not too bad, is it? 👍 Congratulations to all winning teams!
Reposted by Johannes Zenn
We're super happy: Our Cluster of Excellence will continue to receive funding from the German Research Foundation @dfg.de ! Here’s to 7 more years of exciting research at the intersection of #machinelearning and science! Find out more: uni-tuebingen.de/en/research/... #ExcellenceStrategy
May 22, 2025 at 4:24 PM
We're super happy: Our Cluster of Excellence will continue to receive funding from the German Research Foundation @dfg.de ! Here’s to 7 more years of exciting research at the intersection of #machinelearning and science! Find out more: uni-tuebingen.de/en/research/... #ExcellenceStrategy
Reposted by Johannes Zenn
Die Universität Tübingen erhält sechs #Exzellenzcluster, die im Rahmen der #Exzellenzstrategie vom 01.01.2026 an sieben Jahre lang gefördert werden! Darunter drei Cluster, die bereits etabliert sind und eine erneute Förderung erhalten. uni-tuebingen.de/universitaet... #ExStra #Forschung #UniTübingen
May 22, 2025 at 5:13 PM
Die Universität Tübingen erhält sechs #Exzellenzcluster, die im Rahmen der #Exzellenzstrategie vom 01.01.2026 an sieben Jahre lang gefördert werden! Darunter drei Cluster, die bereits etabliert sind und eine erneute Förderung erhalten. uni-tuebingen.de/universitaet... #ExStra #Forschung #UniTübingen
I'm extremely disappointed with the organization of the upcoming German election. Voting is a fundamental right, yet my ballot letter arrived too late in Toronto—now the fastest! delivery won't get it there by Monday, after the election. Unacceptable.
Aus. Vorbei. Zum ersten Mal in meinem Leben werde ich meine Stimme bei einer Bundestagswahl nicht abgeben können. Tausenden Auslandsdeutschen geht es genauso. Warum ich stocksauer bin. 👇👇👇
www.rnd.de/politik/bund...
www.rnd.de/politik/bund...
Warum ich erstmals in meinem Leben keine Wahl habe
Unser US-Korrespondent hat wie Tausende andere Auslandsdeutsche in den Vereinigten Staaten bis heute seine Briefwahlunterlagen nicht erhalten. Deshalb kann er seine Stimme bei der Bundestagswahl nicht...
www.rnd.de
February 20, 2025 at 2:46 PM
I'm extremely disappointed with the organization of the upcoming German election. Voting is a fundamental right, yet my ballot letter arrived too late in Toronto—now the fastest! delivery won't get it there by Monday, after the election. Unacceptable.
I am happy to share that we (finally!) took the time to publish parts of my Master's thesis as a paper (pubs.rsc.org/en/content/a...). Huge thanks to Dominik Gond, Fabian Jirasek and Robert Bamler. Check it out if you are interested in applications of machine learning to chemical engineering!
Balancing molecular information and empirical data in the prediction of physico-chemical properties
Predicting the physico-chemical properties of pure substances and mixtures is a central task in thermodynamics. Established prediction methods range from fully physics-based ab initio calculations, wh...
pubs.rsc.org
January 31, 2025 at 2:45 PM
I am happy to share that we (finally!) took the time to publish parts of my Master's thesis as a paper (pubs.rsc.org/en/content/a...). Huge thanks to Dominik Gond, Fabian Jirasek and Robert Bamler. Check it out if you are interested in applications of machine learning to chemical engineering!
Reposted by Johannes Zenn
Can we build neural networks whose structure and computational abilities match a real brain? We are not quite there yet, but recent work by @lappalainenjk.bsky.social et al. shows a strategy for getting closer to this goal. Read more on our blog: www.machinelearningforscience.de/en/improving...
How a tiny animal helps us improve brain simulations with AI
Can we build neural networks whose structure and computational abilities match a real brain? We are not quite there yet, but our new paper shows a strategy for getting closer to this goal.
www.machinelearningforscience.de
December 20, 2024 at 11:32 AM
Can we build neural networks whose structure and computational abilities match a real brain? We are not quite there yet, but recent work by @lappalainenjk.bsky.social et al. shows a strategy for getting closer to this goal. Read more on our blog: www.machinelearningforscience.de/en/improving...
Reposted by Johannes Zenn
How to find all fixed points in piece-wise linear recurrent neural networks (RNNs)?
A short thread 🧵
In RNNs with N units with ReLU(x-b) activations the phase space is partioned in 2^N regions by hyperplanes at x=b 1/7
A short thread 🧵
In RNNs with N units with ReLU(x-b) activations the phase space is partioned in 2^N regions by hyperplanes at x=b 1/7
December 11, 2024 at 1:32 AM
How to find all fixed points in piece-wise linear recurrent neural networks (RNNs)?
A short thread 🧵
In RNNs with N units with ReLU(x-b) activations the phase space is partioned in 2^N regions by hyperplanes at x=b 1/7
A short thread 🧵
In RNNs with N units with ReLU(x-b) activations the phase space is partioned in 2^N regions by hyperplanes at x=b 1/7
Reposted by Johannes Zenn
@jkapoor.bsky.social and @auschulz.bsky.social introduce LDNS, a diffusion-based latent variable model to generate diverse neural spiking data flexibly conditioned on external variables Poster #4010 (East; Wed 11 Dec 11PT) ➡️ openreview.net/forum?id=ZX6... 3/4
December 9, 2024 at 7:28 PM
@jkapoor.bsky.social and @auschulz.bsky.social introduce LDNS, a diffusion-based latent variable model to generate diverse neural spiking data flexibly conditioned on external variables Poster #4010 (East; Wed 11 Dec 11PT) ➡️ openreview.net/forum?id=ZX6... 3/4
Reposted by Johannes Zenn
@vetterj.bsky.social and I are excited to present our work at #NeurIPS2024! We present Sourcerer: a maximum-entropy, sample-based solution to source distribution estimation.
Paper: openreview.net/forum?id=0cg...
Code: github.com/mackelab/sou...
(1/8)
Paper: openreview.net/forum?id=0cg...
Code: github.com/mackelab/sou...
(1/8)
Sourcerer: Sample-based Maximum Entropy Source Distribution Estimation
Scientific modeling applications often require estimating a distribution of parameters consistent with a dataset of observations - an inference task also known as source distribution estimation....
openreview.net
December 10, 2024 at 2:29 AM
@vetterj.bsky.social and I are excited to present our work at #NeurIPS2024! We present Sourcerer: a maximum-entropy, sample-based solution to source distribution estimation.
Paper: openreview.net/forum?id=0cg...
Code: github.com/mackelab/sou...
(1/8)
Paper: openreview.net/forum?id=0cg...
Code: github.com/mackelab/sou...
(1/8)
Reposted by Johannes Zenn
I am super hyped and happy with our recent paper on a ✨VampPrior 2.0✨: Hierarchical VAE with a diffusion-based VampPrior! 🦇 We got SOTA VAE results on CIFAR-10! Kudos to Anna Kuzina because this TMLR paper is the last chapter in her PhD thesis 🤩
📃 tinyurl.com/22rvzc4f
💻 github.com/AKuzina/dvp_...
📃 tinyurl.com/22rvzc4f
💻 github.com/AKuzina/dvp_...
December 4, 2024 at 4:23 AM
I am super hyped and happy with our recent paper on a ✨VampPrior 2.0✨: Hierarchical VAE with a diffusion-based VampPrior! 🦇 We got SOTA VAE results on CIFAR-10! Kudos to Anna Kuzina because this TMLR paper is the last chapter in her PhD thesis 🤩
📃 tinyurl.com/22rvzc4f
💻 github.com/AKuzina/dvp_...
📃 tinyurl.com/22rvzc4f
💻 github.com/AKuzina/dvp_...