Lightnews — Scholar-powered news

Olga Zaghen @olgatticus.bsky.social · May 2

have fun!!! 🔥

Olga Zaghen @olgatticus.bsky.social · Mar 6

Super happy to share our work was accepted as an Oral at the Delta Workshop @ ICLR 2025! 🎉

Can’t wait to talk about it in Singapore 😎

Congrats to the amazing team @eijkelboomfloor.bsky.social @alisometry.bsky.social @erikjbekkers.bsky.social 🔥

Olga Zaghen @olgatticus.bsky.social · Feb 19

Variational Flow Matching goes Riemannian! 🔮

In this preliminary work, we derive a variational objective for probability flows 🌀 on manifolds with closed-form geodesics, and discuss some interesting results.

Dream team: Floor, Alison & Erik (their @ below) 💥

📜 arxiv.org/abs/2502.12981
🧵1/5

4 13

Reposted by Olga Zaghen

Max Zhdanov @maxxxzdn.bsky.social · Mar 5

🤹 Excited to share Erwin: A Tree-based Hierarchical Transformer for Large-scale Physical Systems

joint work with @wellingmax.bsky.social and @jwvdm.bsky.social

preprint: arxiv.org/abs/2502.17019
code: github.com/maxxxzdn/erwin

3 14 41

Reposted by Olga Zaghen

Floor Eijkelboom @eijkelboomfloor.bsky.social · Feb 19

Super excited about this project!! Amazing work by @olgatticus.bsky.social and others ❤️

Olga Zaghen @olgatticus.bsky.social · Feb 19

Variational Flow Matching goes Riemannian! 🔮

In this preliminary work, we derive a variational objective for probability flows 🌀 on manifolds with closed-form geodesics, and discuss some interesting results.

Dream team: Floor, Alison & Erik (their @ below) 💥

📜 arxiv.org/abs/2502.12981
🧵1/5

1 4

Olga Zaghen @olgatticus.bsky.social · Feb 19

Stay tuned for further analyses and experiments! ✨

A huge thanks to my brilliant collaborators for all their efforts and invaluable guidance: @eijkelboomfloor.bsky.social, @alisometry.bsky.social and @erikjbekkers.bsky.social 🔥

🧵5/5

3

Olga Zaghen @olgatticus.bsky.social · Feb 19

We test our method on a checkerboard distribution on the sphere 🏁🌐, yielding promising results when compared to Euclidean and non-variational methods.

🧵4/5

1 2

Olga Zaghen @olgatticus.bsky.social · Feb 19

By directly encoding the manifold, we introduce Riemannian-Gaussian-VFM, offering a fresh perspective on geometry-informed generative modeling. We also discuss how our approach relates to the previously mentioned methods. 🌍🌎🌏

🧵3/5

1 2

Olga Zaghen @olgatticus.bsky.social · Feb 19

Inspired by Riemannian Flow Matching, we extend the Variational Flow Matching (VFM) objective to build a geometry-aware flow model. 🌊

Interestingly, VFM is particularly well-suited for explicitly parametrizing the support manifold of the distribution! 💅💪

🧵2/5

1 2

Olga Zaghen @olgatticus.bsky.social · Feb 19

Variational Flow Matching goes Riemannian! 🔮

In this preliminary work, we derive a variational objective for probability flows 🌀 on manifolds with closed-form geodesics, and discuss some interesting results.

Dream team: Floor, Alison & Erik (their @ below) 💥

📜 arxiv.org/abs/2502.12981
🧵1/5

1 12 34

Reposted by Olga Zaghen

ComBayNS Workshop @combayns-workshop.bsky.social · Feb 13

Welcome to our Bluesky account! 🦋

We're excited to announce ComBayNS workshop: Combining Bayesian & Neural Approaches for Structured Data 🌐

Submit your paper and join us in Rome for #IJCNN2025! 🇮🇹

📅 Papers Due: March 20th, 2025 📜
Webpage: combayns2025.github.io

Home - ComBayNS 2025 Workshop @ IJCNN 2025

combayns2025.github.io

4 9

Reposted by Olga Zaghen

Federico Errica @federico-errica.bsky.social · Jan 27

🌟 Call for Papers – ComBayNS Workshop at IJCNN 2025 🌟

Workshop page: combayns2025.github.io

We are thrilled to announce the #workshop “ComBayNS: Combining Bayesian and Neural approaches for Structured data” at the upcoming International Joint Conference on Neural Networks (#IJCNN).

A thread 🧵

Home - ComBayNS 2025 Workshop @ IJCNN 2025

combayns2025.github.io

1 1 5

Reposted by Olga Zaghen

Max Zhdanov @maxxxzdn.bsky.social · Jan 26

This is how it should be: one file, ctrl+c ctrl+v runnable from a notebook. I really do not want to mess with omegaconf, hydra or, the worst, a custom configuration system just to figure out how your model runs.

1 1 6

Olga Zaghen @olgatticus.bsky.social · Jan 7

👮‍♀️🚨🚔

2

Olga Zaghen @olgatticus.bsky.social · Dec 20

❤️❤️❤️

AMLab @amlab.bsky.social · Dec 20

The Christmas spirit has arrived at AMLab! 🎄✨
Yesterday we kicked off the holidays with a festive group dinner and a fun Secret Santa exchange. 🎅

Wishing everyone a restful and joyful winter break and a happy new year! ❄️💫

3

Olga Zaghen @olgatticus.bsky.social · Dec 16

of course !!

1

Olga Zaghen @olgatticus.bsky.social · Dec 13

we also celebrate it in some areas of Italy - like where I come from - where "Santa Lucia" is even more popular than Santa Claus for children!!

1 1

Olga Zaghen @olgatticus.bsky.social · Dec 13

haters will say photoshop!!

3

Reposted by Olga Zaghen

AMLab @amlab.bsky.social · Dec 9

If you are attending #NeurIPS2024🇨🇦, make sure to check out AMLab's 11 accepted papers ...and to have a chat with our members there! 👩‍🔬🍻☕

Submissions include generative modelling, AI4Science, geometric deep learning, reinforcement learning and early exiting. See the thread for the full list!

🧵1 / 12

1 7 25

Olga Zaghen @olgatticus.bsky.social · Dec 9

So cooooool!!

1

Reposted by Olga Zaghen

Alejandro García @algarciacast.bsky.social · Dec 7

Come and check out our poster on the UniReps workshop at @neuripsconf.bsky.social !

Thanks again to the amazing Giovanni Marchetti, Martina Scolamiero, and Danica Kragic ❤️

See more at: arxiv.org/abs/2409.10967

4 12

Reposted by Olga Zaghen

Floor Eijkelboom @eijkelboomfloor.bsky.social · Dec 6

🐑 Come and check out Variational Flow Matching for Graph Generation next week at @neuripsconf.bsky.social ! 🐑

Wed 11 Dec 11 a.m. PST — 2 p.m. PST
West Ballroom A-D #7103

arxiv.org/abs/2406.04843

4 26

Olga Zaghen @olgatticus.bsky.social · Dec 6

Go chat with ✨the Davids✨, super smart and cool guys!

David R. Wessels @dafidofff.bsky.social · Dec 6

Now still RV'ing w/ @davidmknigge.bsky.social around Vancouver Island, but looking forward to Neurips2024!

We will present our work on solving PDEs with space-time continuous representations using Equivariant Neural Fields (ENF) 🏄‍♀️🌊

Would love to meet and chat if interested!!

2

Reposted by Olga Zaghen

Sai Prasanna @saiprasanna.in · Nov 26

Arxiv sharing reminder

pdf ❌
abs ✅

9 41 250

Reposted by Olga Zaghen

Ravid Shwartz Ziv @shwartzzzivravid.bsky.social · Nov 25

Looking at ICLR submissions with the lowest score - What a work of art! 🧵

5 19 170

Olga Zaghen @olgatticus.bsky.social · Nov 23

of course!:)

1