For more details check out our website: http:// gram-workshop.org or follow @gram-org.bsky.social

GRaM 2.0 is being organised by an ✨incredible team✨ @erikjbekkers.bsky.social @alisometry.bsky.social @sharvaree.bsky.social @oumarkaba.bsky.social @jmtomczak.bsky.social @sukjulian.bsky.social Hannah Lawrence, Robin Walters, Manuel Lecha, Elizabeth Baker and Stefanie Jegelka.

📢The second edition of ✨GRaM workshop✨ is here this time at #ICLR26. 🌟Submit your exciting works in Geometry-grounded representations. We welcome submissions in multiple tracks i.e. 📄 Proceedings 📝extended abstract 👩‍🏫Tutorial/blogpost as well as an exciting challenge!

Geometry & topology may not save the world, but they may well save something that is homotopy-equivalent to it.

Celebrating the author contributions of our ELLIS Members and PhD Students at @neuripsconf.bsky.social 2025 - congratulations to all authors! NeurIPS is joined for the first time by @euripsconf.bsky.social in CPH 🇩🇰, a NeurIPS-endorsed European venue co-developed by ELLIS. 🔗 https://bit.ly/48cRAib

My thesis project embarks on this question, under the supervision of both @erikjbekkers.bsky.social , @pseudomanifold.topology.rocks and @olgatticus.bsky.social we devise a metric over graphs, 𝘵𝘩𝘳𝘰𝘶𝘨𝘩 the maps that exists between them. It also has a cool name! 𝐇𝐨𝐦𝐨𝐦𝐨𝐫𝐩𝐡𝐢𝐬𝐦 𝐃𝐢𝐬𝐭𝐨𝐫𝐭𝐢𝐨𝐧 (ⒽⒹ)

All these insights resulted in a 9.5/10 thesis grade (whatever that means), which I hope serves as a hook to give it a read! 📖 On arxiv: arxiv.org/abs/2511.03068

Under mild assumptions, we obtain a metric and we show 𝘤𝘰𝘮𝘱𝘭𝘦𝘵𝘯𝘦𝘴𝘴. However, as all graphs enthusiasts might notice, this implies the GI problem. That's not the end of the story because we show that we can sample graphs and achieve completeness in expectation :0 !

Two month flew by since the start of the PhD journey with @pseudomanifold.topology.rocks and now the time is right to share how our collaborations officially started, with a question: How can we measure difference in (attributed) graphs beyond binary isomorphism testing ? 🌀

Beware of low-hanging fruits in research, lest you eat the forbidden fruit and get expelled from paradise. #showerthoughts #research #academia

Excited to be at #SfN25! Come catch my poster “Neural dimensionality expands over the course of brain-computer interface learning” wed PM (W15) if you’re interested in non-invasive BCIs, neural manifolds, human learning, etc. Building upon our recent work (doi.org/10.1101/2025.03.29.646109)

Big graph, little compute? In our #NeurIPS2025 paper we propose geometry-aware edge-contraction-based pooling methods for GNNs. Our methods preserve graph structure, make interpretable pooling choices, and ensure robust performance at downstream tasks. 🧵1/n

Now with an excellent YouTube video by @ben300694.bsky.social: youtu.be/Vkl6dLKnnJc

New blog post: Skills for the Future A brief reflection on what skills may (hopefully) remain relevant in the new (hopefully bright) future of LLMs et al. #AcademicWriting #AcademicChatter bastian.rieck.me/blog/2025/sk...

Interesting application of ideas from topology to LLM training!

EurIPS student pricing is ending soon and I have a hunch that the other tickets might also sell out, so get yours now while supplies last!

It's epoch 50. Do you know whether your LLM is grokking? In our #NeurIPS2025 paper "Less is More: Local Intrinsic Dimensions of Contextual Language Models," we study how the local intrinsic dimension (LID) of embeddings changes during training and fine-tuning. #research 🧵1/n

Want to generate point clouds? Our (w/ Ernst Röell) #NeurIPS2025 paper shows a topology-driven method that is fast, simple, and high-quality. 🔥 1/n

Oh, you have criticisms of my paper? Surely you noticed the part of the paper where we already rebutted your critique, by writing “Possible criticisms: the methodology of this paper is bad. We are aware of this.”

If you teach in higher education: You may be grappling with the existence of generative AI tools. I’ve landed on “they’re not going away, so I educate students and have them co-create their own class policy for use.” They do a wonderful job, and I once wrote up the process and results. #AcademicSky

Currently, on Hacker News.

Will AI Replace Human Thinking? The Case for Writing and Coding Manually.

(if you're really curious, we have a full github repo for the paper here: github.com/dkobak/low-d...)

one of the more fun topics stemmed from a discussion with @hippopedoid.bsky.social over what the oldest 2D PCA visualization we could find was. After some scouring, we settled on a 1960 paper from researchers at the Université de Montréal about turtle carapaces, which we recreated.

Last year I met a bunch of great researchers who work with high-dimensional data at a Dagstuhl seminar. This week we put out a preprint about the history and philosophy of low-dimensional embedding methods, their applications, their challenges, and their possible future arxiv.org/abs/2508.15929

Hope you all had a good summer. I'm very happy to announce the speaker line-up for the falls Chalmers AI4Science seminars! Hope to catch you all there!

New blog post: Consciousness Is Overrated Anyway (for AI) In which I, somewhat coherently, try to contribute to the whole "Is AI Conscious" debate. 🔗 bastian.rieck.me/blog/2025/co... #AI #MachineLearning

Should we still teach machine learning classes? Let me justify my existence.

Wonder when I'll reach the stage of my career where I just sign with an initial... People who do that already, how cool do I have to be to join the club? 🥺 #AcademicSky #MathSky

Come find me (and this lovely bin of recyclable pens) later today at 181! @cogcompneuro.bsky.social

Save the Date! ATMCS 12 is coming up fast, January 26-30, 2026, in Leipzig. More info at the link below, call for contributions coming soon! www.mis.mpg.de/events/serie...

📢 Save the date! Join us for the next @ellis.eu x UniReps Speaker Series! 📅 27th August – 16:00 CEST 📍https://ethz.zoom.us/j/66426188160 🎙️ Speakers: Keynote by @lelandmcinnes.bsky.social & Flash Talk by Yu (Demi) Qin 🔔 Stay updated by joining our Google group: groups.google.com/u/2/g/ellis-...

🎥 Shapes, Spaces, Simplices, and Structure: Geometry, Topology & Machine Learning "What if the answer to some problems in graph learning is not more, but better structure?" This is the central premise of my talk @logml.bsky.social and @unireps.bsky.social. 🧵1/5

"SAFE TY FIRST" Kerning. Once you know about it, your enjoyment of public signage will be ruined forever. en.wikipedia.org/wiki/Kerning

Happy to announce I just defended my dissertation at Harvard and I’m now a PhD.

🇨🇭 Happy #SwissNationalDay! It's already a year since I started my new position @unifr.bsky.social and I'v had the good fortune to be living here since 2018. Thanks for everything, Switzerland! 🙏 Here's to the future! 🚀

While you are waiting for your #NeurIPS reviewers, you might enjoy this tongue-in-cheek blog post I wrote: The Missing Screwtape Letters from Academia bastian.rieck.me/blog/2023/sc... (With apologies to C.S. Lewis)

We grow better and stronger: a few inspiring visits between Mila and Helmholtz Munich: 1. read below on what a few week stays at Mila brought to Irene and Gab, PhD students from Benjamin Schubert and Maria Colome Tatché 's groups @HelmholtzMunich […] [Original post on wisskomm.social]

Looking very much forward to this event! Thanks for having me!

🔥 Mark your calendars for the next session of the @ellis.eu x UniReps Speaker Series! 🗓️ When: 31th July – 16:00 CEST 📍 Where: ethz.zoom.us/j/66426188160 🎙️ Speakers: Keynote by @pseudomanifold.topology.rocks & Flash Talk by @florentinguth.bsky.social

Topology is cool, check it out!

#MachineLearning loves data. #Topology loves shape. Let's bring them together! 👉The Euler Characteristic Transform (ECT) bridges both worlds, as I outline in a recent article in the Notices of the @amermathsoc.bsky.social Engage! 🧵1/n

Join us on a (mathematical) journey to a shire - oops, HIGHER - standard and principled evaluation schema for our benchmark datasets. This is the reward of the RINGS framework. 📒 Blog: aidos.group/blog/rings/ 📃 Paper: doi.org/10.48550/arX... 👩‍💻 Code: github.com/aidos-lab/ri...

✨Excited to be at ICML 2025 to share our new evaluation framework for graph-learning datasets, work with @dataspider.bsky.social, @jeremy-wayland.bsky.social, @pseudomanifold.topology.rocks Curious about who shall pass, and who shall not?🤔 Enjoy nods to LoTR?🧝‍♀️ Check out our blog and paper below!

Next appointment: 31st July 2025 – 16:00 CEST on Zoom with 🔵Keynote: @pseudomanifold.topology.rocks (University of Fribourg) 🔴 @florentinguth.bsky.social (NYU & Flatiron)

A great slide from a great talk by @pseudomanifold.topology.rocks at @logml.bsky.social

📢 Call for Papers: NeurReps 2025 ‼️‼️‼️ 🧠 Submit your research on symmetry, geometry, and topology in artificial and biological neural networks. Two tracks: Proceedings (9 pages) and Extended Abstract (4 pages). Deadline: Aug 22, 2025. www.neurreps.org/call-for-pap...

🚨One of the coolest workshops in AI is back! NeurReps 2025 is calling for papers on symmetry, geometry & topology in neural networks 🧠📐 If your work bridges theory & structure — don’t miss this. 📅 Deadline: Aug 22

Very happy that Jiří Minarčík will join our research group at @cmu.edu, the Geometry Collective, as a Fulbright visiting scholar! 🥳 Jiří is a world expert in space curves, and one of the core contributors to Penrose (penrose.cs.cmu.edu). Check out his beautiful work here: minarcik.com

I am very happy to report that two of these students will join the AIDOS Lab @unifr.bsky.social to work on #geometry, #topology, and #MachineLearning 😊