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CNRS Mathématiques @cnrs-insmi.bsky.social · Sep 2

#TalentsCNRS 🏅 | Découvrez le Centre International de Rencontres #Mathématiques, le Cirm, lauréat de la médaille de cristal collectif @cnrs.fr

Reconnu comme un centre incontournable à l'international, la médaille récompense la qualité du travail de son équipe.

➡️ www.insmi.cnrs.fr/fr/cnrsinfo/...

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Clément Cazorla @ccazorla31.bsky.social · Aug 25

#Sketchpose is out in @melbajournal.bsky.social !
Go read it if you are interested in training cell segmentation models using few partial annotations 😀

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Mathurin Massias @mathurinmassias.bsky.social · Jun 18

New paper on the generalization of Flow Matching www.arxiv.org/abs/2506.03719

🤯 Why does flow matching generalize? Did you know that the flow matching target you're trying to learn *can only generate training points*?

w @quentinbertrand.bsky.social @annegnx.bsky.social @remiemonet.bsky.social 👇👇👇

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Mathurin Massias @mathurinmassias.bsky.social · Jun 18

Then why does flow matching generalize?? Because it fails!

The inductive bias of the neural network prevents from perfectly learning u* and overfitting.

In particular neural networks fail to learn the velocity field for two particular time values.

See the paper for a finer analysis 😀

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Gabriel Peyré @gabrielpeyre.bsky.social · May 16

Mon article sur les maths de l’IA est paru dans la gazette de la smf smf.emath.fr/publications...
La version en anglais est sur arxiv
arxiv.org/abs/2501.10465

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Emmanuel Soubies @esoubies.bsky.social · May 16

Seems that here a part of the signal of interest has been attenuated? From my own tests (with the Matlab version on SIM data), maybe this can be improved by playing with the threshold parameter.

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Emmanuel Soubies @esoubies.bsky.social · May 15

In particular, it handles out-of-focus regions more effectively than traditional OTF attenuation.

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Emmanuel Soubies @esoubies.bsky.social · May 15

Nice work! We integrated this dark-sectioning method into our FlexSIM pipeline (github.com/esoubies/Fle...) as an additional option for handling out-of-focus signal. It works remarkably well!

Nature Methods @natmethods.nature.com · May 12

A Dark sectioning algorithm removes background and provides single-frame optical sectioning in fluorescence microscopy, facilitating improved deep-tissue segmentation accuracy.

www.nature.com/articles/s41...

Dark-based optical sectioning assists background removal in fluorescence microscopy - Nature Methods

The Dark sectioning algorithm removes the background and provides single-frame optical sectioning in fluorescence microscopy. It offers improved quantitative analysis and deep-tissue segmentation accu...

www.nature.com

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GdR ImaBio @gdrimabio.bsky.social · May 5

🔥It's D-day. We're opening pre-registration for #Mifobio2025 today🔥

👉 This is the 11th edition of the Thematic School!

All the relevant information, as well as the pre-registration form, is easily accessible on imabio-cnrs.fr but only if you are logged on this site.

👉Deadline June 10, 2025 ❗

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Mathurin Massias @mathurinmassias.bsky.social · Apr 24

It was received quite enthusiastically here so time to share it again!!!

Our #ICLR2025 blog post on Flow Matching was published yesterday : iclr-blogposts.github.io/2025/blog/co...

My PhD student @annegnx.bsky.social will present it tomorrow in ICLR, 👉poster session 4, 3 pm, #549 in Hall 3/2B 👈

A Visual Dive into Conditional Flow Matching | ICLR Blogposts 2025

Conditional flow matching (CFM) was introduced by three simultaneous papers at ICLR 2023, through different approaches (conditional matching, rectifying flows and stochastic interpolants). <br/> The m...

iclr-blogposts.github.io

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Christophe 🔬 L @christlet.bsky.social · Apr 17

Our PhD student Louis Romette is optimizing long-term live-cell imaging. He just casually dropped this 65-hour movie of a growing neuron (div 3 to 6) with knocked-in actin 🔥🕶️ #realtimemicroscopy

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Christophe 🔬 L @christlet.bsky.social · Apr 9

We have a new review out! In this Microscopy & Microanalysis piece, Louisa Mezache and I survey some of the latest commercially available microscope technologies: Nikon NSPARC, Re-scan Gaia, CSR Biotech MI-SIM, refinements to STED, SMLM from Bruker and Abbelight… Check it out with free access:

Advancing Super-Resolution Microscopy: Recent Innovations in Commercial Instruments

Abstract. Super-resolution microscopy techniques have accelerated scientific progress, enabling researchers to explore cellular structures and dynamics wit

academic.oup.com

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Christophe 🔬 L @christlet.bsky.social · Feb 12

Our NCIS facility and Nikon Center of Excellence for Neuro-nanoimaging is on Bluesky! Follow @ncis-marseille.bsky.social for your stunning images and microscopy news fix by @bertrandvernay.bsky.social and me

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Sandrine Lévêque Fort 🔬 @slfort.bsky.social · Jan 29

If you are interested by building or applying new microscopes around single molecule, FLIM, in depth imaging, live-cell+ SMLM, we are opening post-doc positions for various backgrounds funded by ERC grant, don’t hesitate to contact me (flexible start).
shorturl.at/fYNij
shorturl.at/gDQkz

Portail Emploi CNRS - Offre d'emploi - Post-doctorant (H/F) pour le développement de nouveaux concepts en microscopie de fluorescence super-résolue pour l'observation de cellules vivantes

shorturl.at

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Paul Hagemann @yungbayesian.bsky.social · Jan 23

Our paper "PnP-Flow: Plug-and-Play Image Restoration with Flow Matching" has been accepted to ICLR 2025. Here a short explainer: We want to restore images (i.e., solve inverse problems) using pretrained velocity fields from flow matching. However, using change of variables is super costly.

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Pier Luigi Dragotti @pdragotti.bsky.social · Jan 17

We are hiring at assistant/associate professor level. We are particularly interested in applicants working on AI, Machine Learning (ML), and data sciences in topics relevant to the work of the department. Deadline 12th of February:
www.imperial.ac.uk/jobs/search-....

Description

Please note that job descriptions are not exhaustive, and you may be asked to take on additional duties that align with the key responsibilities ment...

www.imperial.ac.uk

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Rémi Flamary @rflamary.bsky.social · Jan 15

Open Assistant Professor position in Statistical Learning or Data Science at École Polytechnique at Paris/Saclay. Reasonable teaching hours on ML/Stat or DS courses with very good students. Deadline is March 28th 2025, contact us if interested. gargantua.polytechnique.fr/siatel-web/a...

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Sandrine Lévêque Fort 🔬 @slfort.bsky.social · Jan 14

#MiFoBio2025 the autumn microscopy school by @gdrimabio.bsky.social will take place from 10th to 16th October 2025. The call for workshops to share pratical knowledges is open till 31/01 ateliers-mifobio.fr
We'll bring stuff as usual, stay tuned ! @cnrsingenierie.bsky.social

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Laurent Duval (research amateur) @laurentduval.bsky.social · Jan 13

Colloque #GRETSI, #Strasbourg 25-29 août 2025
gretsi.fr/colloque2025/
Soumission du 3 février au 21 mars
#GRETSI2025 XXXe Colloque Francophone de Traitement du Signal et des Images (vision, apprentissage, capteurs, communication, modèles)
Relayez !

Strasbourg, Alsace, place Kléber en hiver

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Carola Doerr @caroladoerr.bsky.social · Jan 7

Videos of the CNRS optimization conference now online (in French):
- Claire Mathieu : www.youtube.com/watch?v=_ZXZ...
- Gabriel Peyré : www.youtube.com/watch?v=vQOF...
- Jérôme Bolte : www.youtube.com/watch?v=tjkg...
- Axel Parmentier : www.youtube.com/watch?v=DohO...

Enjoy 🙂

www.youtube.com

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Laurent Duval (research amateur) @laurentduval.bsky.social · Dec 22

Have some curiosity on investigating the well-known PCA (Principal Component Analysis) with a glimpse of sparse optimization? With homogeneous or scale-invariant SOOT/SPOQ norm ratio penalties? Join INRIA for a Master Internship in 2025 (INRIA) Revisiting PCA with norm-ratio sparsity penalties

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Christophe 🔬 L @christlet.bsky.social · Dec 4

New review: together with PhD student Ciarán Butler-Hallissey, we provide a comprehensive overview on how super-resolution microscopy can dissect the neuronal cytoskeleton, and the exciting perspectives ahead. Shock full of beautiful images, published or from our lab! www.nature.com/articles/s44...

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CIRM - Centre international de rencontres mathématiques @cirm-math.bsky.social · Dec 2

Le CIRM, ses rencontres mathématiques internationales et son ciel bleu rejoignent @bsky.app
CIRM, its international mathematical meetings and its blue sky join @bsky.app

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Mathurin Massias @mathurinmassias.bsky.social · Nov 27

Anne Gagneux, Ségolène Martin, @quentinbertrand.bsky.social Remi Emonet and I wrote a tutorial blog post on flow matching: dl.heeere.com/conditional-... with lots of illustrations and intuition!

We got this idea after their cool work on improving Plug and Play with FM: arxiv.org/abs/2410.02423

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Loïc A. Royer 💻🔬🧪 @loicaroyer.bsky.social · Nov 26

🔊 Exciting AI Research Opportunity! my team at @czbiohub SF is hiring a Research Scientist to develop foundational AI models for BioImage analysis. Join us to work on cutting-edge ML/CV! 💻🔬🧪🧠
#AIJobs #ML

job-boards.greenhouse.io/chanzuckerbe...

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