Dahan Simon

Postdoc in AI & BCI @_NeuroRestore | PhD in AI-Neuroimaging 🧠 @lab_metrics @KingsImaging | CS Engineer & AI Scientist | @imperialcollege, @telecomparis

[Dahan Simon @DahanSimon]

[1/5] I'm very happy to share that our latest paper: “SIM: Surface-based fMRI Analysis for Inter-Subject Multimodal Decoding from Movie-Watching Experiments”, has been accepted to #ICLR2025! 🎉

[Dahan Simon @DahanSimon]

Wants to learn how to model brain signal in response to complex stimuli?
Come to our poster ! #61
#ICLR2025

[Dahan Simon @DahanSimon]

Interested in learning how to generalise fMRI decoding to new subjects and new stimuli during movie-watching experiments, join us (with @emrobSci @le__gab) this afternoon to learn more about it !

📍Hall 3 - Poster 61 -@iclr_conf

https://t.co/mQDsQsm4JA

#ICLR2025 #fMRI #AI

[Dahan Simon @DahanSimon]

Interested in learning how to evaluate small language models on non-reasoning tasks? 🤖Come check out the great demo of @le__gab at 2:00pm at the Amazon Booth @iclr_conf #ICRL2025

[Gabriel Bénédict @le__gab]

Doing a demo on evaluating small language models for non-reasoning tasks (e.g. professionalize, shorten) at the amazon booth at 14:00 tomorrow at #ICLR 🇸🇬

[Dahan Simon @DahanSimon]

[5/5] The attention maps of the fMRI encoder, extracted after multimodal alignment, correlate well with topographic maps of functional networks activated during movie-watching. Code, pre-trained models, and a pre-print will be released very soon! ☺️

[Dahan Simon @DahanSimon]

[1/5] I'm very happy to share that our latest paper: “SIM: Surface-based fMRI Analysis for Inter-Subject Multimodal Decoding from Movie-Watching Experiments”, has been accepted to #ICLR2025! 🎉

[Dahan Simon @DahanSimon]

[4/5] Critically, we show that SIM generalises effectively for fMRI decoding and image reconstruction across new subjects (unseen during training), new audio-visual stimuli (new movie scenes), and even new stimuli in new subjects!

[Rob Leech @leechbrain]

A biologically-implausible model of the formation sulci and gyri across the human cerebral cortical mantle.

[Dahan Simon @DahanSimon]

🤣

[Jia-Bin Huang @jbhuang0604]

R2: While the results are impressive, this is a simple combination of diffusion transformer (ICCV 2023) and latent diffusion model (CVPR 2022). Limited novelty. Weak reject.

[Daniele Grattarola @riceasphait]

We could have AGI but our learning rates are off by 1e-15.

[Dahan Simon @DahanSimon]

Great insights on Self-Supervision, open source AI, hierarchical planning and AGI by @ylecun at #MICCAI2023

[Dahan Simon @DahanSimon]

Very exciting 🇫🇷

[Emma R - @metricsemma.bsky.social @emrobSci]

MeTriCS lab is excited about this one. Paris here we come 🤞!!

[Emma R - @metricsemma.bsky.social @emrobSci]

Looking for a #PhD in #AI? 10 days left to apply for our project on geometric #deeplearning and #Physics-informed neural network modelling of #Alzheimer's disease progression. One International place!!!
https://t.co/es9elCEqRh

[@midl-conference.bky.social @midl_conference]

MIDL is going to Paris - and hopefully you do the same! The Call for Papers is now online! See https://t.co/3zf2VeJS9p for details.

[Mark Tenenholtz @marktenenholtz]

3 years ago, I was lucky enough to travel to Israel 🇮🇱 for the first time.

My primary takeaway: if you think the Middle East is a black-and-white issue, you couldn't be more wrong. If you think it's complicated, it's more complicated than you could imagine.

There's been plenty of talk about the war and the atrocities that have been committed. If you know me personally, you know my views on this issue are quite clear. But I'm not here to talk about that right now.

My first day in Israel was quite unexpected, mostly (at first) because it rained. Believe it or not, it rains in the desert, and that completely threw off our itinerary.

While our guides were figuring out a backup plan for the rain, we met our tour mates. They, surprisingly enough, were IDF soldiers that were on leave, and would be joining us for the whole trip.

Despite my pro-Israel stance, I'm a generally skeptical person and immediately assumed I was going to be propagandized to death the whole trip. And, even if they weren't sent there to indoctrinate us, I assumed they'd at least be pretty biased. Even if I generally support their side of the equation, I don't like being lied to. But they were quite nice, so I went along with it for the time being.

Our first destination, due to last second changes in plan from our original outdoors activities, was the Yitzhak Rabin Center, where we were to meet up with our tour mates. Rabin became an early Prime Minister of Israel after fighting in the wars of 1948. He was ultimately assassinated. What a great place to start the indoctrination, right? A memorial to a guy who is famous for fighting in the OG wars that got this country on its first legs.

Walking between exhibits with a couple of the soldiers, we finally came across some information about the ongoing treatment of Palestinians in Israel. To be honest, it's really hard to get good information on this outside of seeing it for yourself, so with genuine curiousity (and a bit of hesitation in anticipation of a fiery response), I asked them about it. I firmly expected to get an answer approximating "yeah fuck 'em, they hate us."

I couldn't have been more wrong.

Might I remind you, Israel has mandatory conscription because pretty much every country neighboring them wants to wipe them off the face of the planet. And, among those conscripted soldiers, there was a lucky few sent to hang out with American tourists. So why wouldn't they send ones with the "right" opinions?

And their response? It was filled with genuine heartache. They expressed deeply complicated feelings about the settlements (which they had actually seen, unlike most who shout vitriolic opinions). They hated the idea that their military activity caused any amount of distress to any ordinary Palestinians, whether those people wished Israelis death or not. Of course, they all hated Hamas, who obviously was the one pitting them against each other.

Thank goodness this was the first day of the trip, because it opened my eyes for the rest of it.

This conversation was an ongoing one throughout the whole trip. They never shied away from it. And they were always willing to play devil's advocate, steelmanning the best opinions from each side.

After several days of exploring Israel, eating a ton of amazing food, meeting a ton of amazing people, and seeing a ton of amazing sights, we ended up near the border of the West Bank on the last full day of the trip, where we had similarly complicated, unfulfilling, yet enlightening conversations.

In the days to come, whenever you hear the loudest, most radical voices from both sides shouting terrible things, remember that many of the actual people on the ground are humans with nuanced, compassionate voices. You won't hear that in the news, and you won't see it in the videos on Twitter that show each side trying to blast the other into oblivion.

Most of the individuals that were senselessly murdered on the first day probably held pretty similar opinions.

This is probably a little rambly, and I don't have much of a takeaway other than this: Think of the individuals in Gaza who just want to live a normal life. And think of individuals in Israel who want them to live that normal life.

[Dahan Simon @DahanSimon]

Truly inspiring work!

[Frank Willett @WillettNeuro]

Our new study is out today in Nature! We demonstrate a brain-computer interface that turns speech-related neural activity into text, enabling a person with paralysis to communicate at 62 words per minute - 3.4 times faster than prior work. 1/3 https://t.co/6pB7NLAqjG

[Dahan Simon @DahanSimon]

Another great work from @GuoYourong and @lab_metrics presented at OHBM2023 🎉

[Yourong Guo @GuoYourong]

At this year's @OHBM I will be presenting "Uncovering common variants of cortical folding through hierarchical surface registration". Come check out at poster number 671, poster session 1 & 2 🧵 1/7

[Dahan Simon @DahanSimon]

@emrobSci It is so well deserved 👏🏻👏🏻