Leon Hetzel
@leon_het
👨💻PhD student at TUM and Helmholtz Munich, Generative Modelling, Graphs, Applications in single-cell and drug discovery
Thrilled to announce that we just presented „MAGNet: Motif-Agnostic Generation of Molecules from Scaffolds“ at #ICLR2025 🧲 @j_m_sommer @Pseudomanifold @fabian_theis @guennemann For those who couldn’t make it to our spotlight: openreview.net/forum?id=5FXKg…

Finding good resources on efficient AI is harder than it should be. We're fixing that! 🚀 Check out our new github.com/PrunaAI/awesom… repo —a curated hub of the best tools, papers, and techniques to make AI faster, smaller, and cheaper.
Congrats to my amazing PhD students: We have 9 papers accepted at #ICLR2025. Reliability, AI4Science, graphs, LLMs, and more (go.tum.de/936150). And if you follow the recent discussions about AI efficiency, you might like our blog and webinars (pruna.ai).
It’s rainy in Vancouver, poster hall is closed but we are ready 🙌 👉 Come and talk to us and learn about UniGuide at Poster#2600 (East) UniGuide is a new framework for molecular diffusion models that enables flexible geometric conditioning across tasks—no retraining required
This week, we will present our recent #NeurIPS2024 paper. 📎 Paper: openreview.net/forum?id=HeoRs… 📆 Make sure to visit our poster #2600 on Fri, 13 December at 11 am! Joint work with my amazing mentors @leon_het @j_m_sommer @fabian_theis @guennemann
Unified Guidance for Geometry-Conditioned Molecular Generation • UniGuide introduces a unified framework for geometry-conditioned molecular generation using diffusion models. It provides a flexible method for controlled molecular design, eliminating the need for additional…
11 exciting news: Our group has 10 papers at #NeurIPS2024 (incl. 1 oral + 2 spotlights) 📃🎓. And as of October 1st, I am on entrepreneurial leave 🚀. Re papers: Congrats to all co-authors. Amazing work! go.tum.de/689644 Re startup: We are hiring! pruna.ai
Three papers @NeurIPSConf 2024 🎉 An efficient adv. training algorithm for LLMs arxiv.org/abs/2405.15589 Unlearned LLMs are not safe against adv. attacks arxiv.org/abs/2402.09063 Scaling robustness of Lipschitz-1 networks arxiv.org/abs/2305.10388 Happy to chat in Vancouver!
Presenting at #ICML2024: Fragment-Biases for Molecular GNNs 🧪 Tue, 23.07: Oral session 1F @ 11:00 Poster #105 @ 11:30 🔑 Fragment-Biased GNNs outperform others, match Transformers with better generalization & linear cost! 🤝 With N. Kemper, @leon_het , @j_m_sommer , @guennemann
Mixed Models with Multiple Instance Learning (MixMIL) received an Oral & Outstanding Student Paper award at @aistats_conf last week! 🏆 MixMIL enables accurate & interpretable patient label prediction from single-cell data by adding attention to GLMMs.#singlecell #MachineLearning
Get to know #mcml junior member @leon_het 💡 He developed an algorithm called chemCPA designed to make drug discovery more effective. Read more (in German): mcml.ai/news/2024-03-2… This article was written by @leonie__fischer from @DJSde!
Thrilled to present our paper "(Provable) Adversarial Robustness for Group Equivariant Tasks" at #NeurIPS2023! Joint work with great collaborators @YanScholten @guennemann! Paper: arxiv.org/abs/2312.02708 Poster #800 Thursday 11 am - 13 pm #NeurIPS
Is binarization of scATAC-seq data really necessary? The conclusion from our analysis is that a quantitative treatment is in fact beneficial. Now out in Nature Methods! @gagneurlab @fabian_theis nature.com/articles/s4159… Many additions since the preprint 👇(1/n)
Do you care about uncertainty quantification? Do you like guarantees? Check out our #ICML2023 paper where we bring conformal prediction to Graph Neural Networks. tldr: Instead of a single label return a *set* that is guaranteed to contain the true label. Set size = uncertainty.
Prediction sets for node classification with a guarantee of covering the true label? Also, without any assumption on the data distribution and the model? Check our last paper at #ICML2023 #ICML23 on "Conformal Prediction Sets for Graph Neural Networks" openreview.net/forum?id=zGf8J…
If you are interested in ML potentials and/or uncertainty estimation come and visit our presentation of "Uncertainty Estimation for Molecules: Desiderata and Methods" this week at #ICML! Tue, 11am, #415 Joint work with @n_gao96 @Bertrand_Charp @amine_ketata @guennemann 1/2
1/9 CPAis finally published. It can predict single-cell responses to combinatorial perturbation (drugs, CRISPR). This is a joint collab between @meta and @fabian_theis @HelmholtzMunich. Read the thread to understand the LEGO analogy! embopress.org/doi/full/10.15…
Happy to announce our new paper on Deterministic Uncertainty Methods @TMLunLimited #ICLR2023 ! We dissect how the design of training schemes, architecture, and prior can significantly impact feature collapse and uncertainty performance! w/ C. Zhang and @guennemann
Great talk Bastian, thanks for uploading!
📺New video: Curvature for Graph Learning📺 Presenting, among other things, current work with (i) @JoshSouthern13, @jeremy_wayland, @mmbronstein and (ii) @CorinnaCoupette and Sebastian Dalleiger. Very excited about this research direction! youtube.com/watch?v=-V0Jpd…
📺New video: Curvature for Graph Learning📺 Presenting, among other things, current work with (i) @JoshSouthern13, @jeremy_wayland, @mmbronstein and (ii) @CorinnaCoupette and Sebastian Dalleiger. Very excited about this research direction! youtube.com/watch?v=-V0Jpd…
A new method from @johwirth @celia4science @Meier_Lab enables cost effective spatial transcriptomics on multiple tissues in parallel. @PioneerCampus
There are some collaborations that are just fun and this was one of them! Big thank you to @ab_meier and Alessandra Moretti and everyone else involved!🫀
Epicardioid single-cell genomics uncovers principles of human epicardium biology in heart development and disease go.nature.com/3zr2PkH