David Rousseau

2K posts

David Rousseau

David Rousseau

@dhpmrou

Particle Physicist at @IJClab @ATLASexperiment at @CERN. #AI and physics. I have left this officially na$i platform, you know where, same handle.

Katılım Mart 2011
1.2K Takip Edilen991 Takipçiler
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David Rousseau
David Rousseau@dhpmrou·
Is uncertainties handling the ultimate roadblock for a wider adoption of AI in science ? AI and the Uncertainty Challenge in Fundamental Physics, 27-Nov-1-Dec with sessions on Uncertainty Quantification, Simulation Based Inference and more, indico.in2p3.fr/event/30589/
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David Rousseau
David Rousseau@dhpmrou·
@uberJJ @bengrossbg That’s good one. And easy to demonstrate. x^x=e^(x ln x). ln x loses against any power of x so lim x ln x when x going to 0 is 0. Si lim x^ x when x goes to 0 is 1.
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.jj 🍋
.jj 🍋@uberJJ·
@bengrossbg The way I rationalise this is: 0.1^0.1 = 0.79 0.01^0.01 = 0.95 As the base and exponent tend towards zero, the result tends towards one. Therefore 0^0 = 1
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David Rousseau
David Rousseau@dhpmrou·
Just created the “boomers @ Neurips” group in #neurips Whova app. I had to.
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David Rousseau
David Rousseau@dhpmrou·
@zack_overflow Bellard has also briefly held the record number of pi decimals computed. This was done using just a somewhat beefed up commercial PC.
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zack
zack@zack_overflow·
Who are your top 5 programmers of all time and why? Mine: 1. Fabrice Bellard (ffmpeg, tinycc, quickjs) 2. John Carmack (doom, quake) 3. John McCarthy (lisp, father of AI, invented GC, timesharing) 4. Linus (linux man) 5. Dennis Ritchie (C and unix, K&R book)
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David Rousseau
David Rousseau@dhpmrou·
@Rainmaker1973 He did not "save" them... Ducks have always nested in the holes of large trees and have always managed very well on their own!
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David Rousseau
David Rousseau@dhpmrou·
I’m moving to the other BS side, same handle
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Eric Newcomer
Eric Newcomer@EricNewcomer·
Continue to think Waymo is not getting enough credit for what they have accomplished. Self-driving cars are just roaming the streets of San Francisco. How are they not met with more wonder and praise?
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David Rousseau retweetledi
Aishik Ghosh
Aishik Ghosh@Aishik_Ghosh_·
Career update 📢—I’m on the job market for faculty positions! My work focuses on advancing particle physics 💥 and astrophysics 🌌 by creating innovative, robust statistical methods with AI 🤖. If you know of any relevant openings, please reach out!
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Gregor Kasieczka
Gregor Kasieczka@GregorKasieczka·
Today ends the #ML4Jets conference in Paris. Great to see the progress in the field from one year to the next, with no saturation in sight. Below some @quunihh students & collaborators (and, of course, beautiful #Paris) Many thanks to AnjaB & @dhpmrou et al for hosting this!
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Balázs Kégl
Balázs Kégl@balazskegl·
This is what we have been working on this year, beautiful collaboration between two internal teams. And this is just the beginning!
Haitham Bou Ammar@hbouammar

I am excited to present Agent K as the first end-to-end agent (i.e., autonomous from Kaggle URL to submissions that win competitions) to achieve an equivalent of Kaggle grandmaster level. Our agent codes the whole data science pipeline from a natural language description of the competition and raw data! It does at least the following: 1. Cleans and pre-processing the data automatically; 2. Do feature engineering if needed automatically; 3. Write machine learning models that it thinks can solve the tasks automatically; 4. Trains the models and optimises their hyperparameters with HEBO automatically; 5. Write Kaggle submission files and decide to upload them to Kaggle to get the score automatically; It uses this score to improve its pipeline and submission automatically. Regarding results, we win six gold, three silver, and seven bronze medals. We also score in the top 38% against Kagglers. Since we win medals in all competition types, we make a fair comparison to human participants by awarding them extra medals if needed. Here, we also see that our Agent K is more likely to earn more medals than humans. The difference is particularly significant for bronze medals, where Agent K outperforms in 42% of match-ups and underperforms in only 23%. Similarly, for gold medals, the agent's winning rate of 14% is over twice its losing rate of 6%. How's that for LLMs that can't reason ;) Whoop whoop! #AI #machine_learning #MachineLearning #DataDriven #DataScientist #DataScientist arxiv.org/pdf/2411.03562

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Luca Soldaini 🎀
Luca Soldaini 🎀@soldni·
Blows my mind that model souping Just Works™️ Same model, same data, train 3-5 times with different seeds, 1-2 extra points on MMLU, Hellaswag, ARC, GSM8k, etc
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Jay Sandesara
Jay Sandesara@SandesaraJay·
Excited to share the first results using Neural Simulation-Based Inference (NSBI) techniques applied to @ATLASexperiment data! We measure the elusive off-shell Higgs boson with 3.1x better observation sensitivity than standard (histogram) analysis techniques! A thread: (1/N)
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Kyle Cranmer
Kyle Cranmer@KyleCranmer·
But making it happen in an actual experiment at the LHC took a long time. Check out the thread by @Aishik_Ghosh_ about his 6-year journey. And shoutout to @dhpmrou for being an awesome advisor that saw the potential for these techniques early on x.com/glouppe/status…
Gilles Louppe@glouppe

They made it! @Aishik_Ghosh_, Jay Sandesara, @dhpmrou and Rafael CLdS pushed through the first neural simulation-based inference analysis @ATLASexperiment. Huge congratulations to everyone involved!

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Aishik Ghosh
Aishik Ghosh@Aishik_Ghosh_·
A thread on quantum interference and the 6 year adventure it took me through In experimental particle physics we sift out events from signal (eg. Higgs) processes vs the orders of magnitude more events from background processes…
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