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Laboratoire d'Informatique de Paris Nord

@lipnlab.bsky.social
77 followers 20 following 25 posts

The Laboratoire d'Informatique de Paris-Nord (LIPN) is a joint research unit between the CNRS and the Université Sorbonne Paris Nord (USPN), with 150 researchers. lipn.univ-paris13.fr/home

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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 28/05/2026
A survey paper from our RCLN team has been accepted at IJCAI 2026! 🎉 "Graph Rewiring in GNNs to Mitigate Over-Squashing and Over-Smoothing: A Survey" Joint work with H. Attali, D. Buscaldi, N. Pernelle & F. Malliaros. 📎 arxiv.org/abs/2411.17429 #GNN #IJCAI2026 #GraphNeuralNetworks #LIPN
arxiv.org
Graph Rewiring in GNNs to Mitigate Over-Squashing and Over-Smoothing: A Survey
Graph Neural Networks are powerful models for learning from graph-structured data, yet their effectiveness is often limited by two critical challenges: over-squashing, where information from distant n...
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 27/05/2026
2️⃣ ACL 2026 : Emergent Mention Detection in LLMs — Accepted at #ACL2026 By Victor Morand, Nadi Tomeh, Josiane Mothe, and Benjamin Piwowarski. 🔗 arxiv.org/abs/2510.19410
arxiv.org
ToMMeR -- Efficient Entity Mention Detection from Large Language Models
Identifying which text spans refer to entities - mention detection - is both foundational for information extraction and a known performance bottleneck. We introduce ToMMeR, a lightweight model (<300K...
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 27/05/2026
1️⃣ SIGIR 2026 : Voronoi Token Pruning in Late-Interaction Models By Yash Kankanampati, Yuxuan Zong, Nadi Tomeh, Benjamin Piwowarski, and Joseph Le Roux. 🔗 arxiv.org/abs/2603.09933
arxiv.org
A Voronoi Cell Formulation for Principled Token Pruning in Late-Interaction Retrieval Models
Late-interaction models such as ColBERT offer competitive performance across various retrieval tasks but require storing a dense embedding for each document token, leading to a substantial index stora...
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 27/05/2026
Proud to share that the RCLN team will be presenting two papers at premier IR and NLP conferences! 🏆 1️⃣ SIGIR 26 (Kankanampati, Zong, Tomeh, Piwowarski & Le Roux) 2️⃣ ACL 26 (Morand, Tomeh, Mothe & Piwowarski) We look forward to an exciting month of July sharing these advancements! Infos in comments👇
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 09/04/2026
🎉 "PUMA: Projected Universal Multilingual ASR for Low-Resource Settings" has been accepted at the #ACL2026 Findings Conference! Congratulations to Ilyes Oukid, Bilal Faye, Hanane Azzag, Mustapha Lebbah and Said Yacine Boulahia! Work in collaboration with the DAVID Lab (UVSQ / Univ. Paris-Saclay).
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 04/09/2025
❓ Do we really know what an algorithm is? To learn more about interdisciplinary work between philosophy and computer science, check out the CNRS online journal: lejournal.cnrs.fr/nos-blogs/fo... 🤝 This is part of a joint project between the LIPN and the IHPST, carried out by T. Seiller and A. Naibo.
lejournal.cnrs.fr
« Algorithme », un mot simple plein d'ambiguïtés
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Étienne André @etienneandre.bsky.social · 29/07/2025
Félicitations à Aude Grezka, ingénieure de recherche CNRS au @lipnlab.bsky.social, et nouvelle ambassadrice du programme « La Science taille XX elles » www.iledefrance-villejuif.cnrs.fr/fr/personne/...
iledefrance-villejuif.cnrs.fr
Aude Grezka | Délégation Ile-de-France Villejuif du CNRS
Aude Grezka est ingénieure de recherche CNRS en linguistique au sein du Laboratoire d’Informatique de Paris-Nord (LIPN, CNRS/Université Sorbonne Paris Nord) : un rôle particulier qui consiste à aider les ordinateurs à comprendre les mécanismes de la langue.
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Étienne André @etienneandre.bsky.social · 25/06/2025
It is our greatest pleasure to organize the 46th Petri Nets international conference this week in @campuscondorcet.bsky.social, @univ-spn.bsky.social, organized by @lipnlab.bsky.social and MeFoSyLoMa. First keynote speaker is Dirk Beyer from LMU München. petrinets25.github.io/web/
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 24/06/2025
💫 Congratulations to Aude Grezka, a CNRS Research Engineer at @lipnlab.bsky.social, and one of the new ambassadors for the "La Science taille XX elles" program! 🔗 www.paris-centre.cnrs.fr/fr/cnrsinfo/...
paris-centre.cnrs.fr
La Science taille XX elles, l’exposition qui célèbre les femmes scientifiques, revient pour une nouvelle édition en Ile-de-France !
Les délégations Paris-Centre et Villejuif du CNRS, en partenariat avec l’association Femmes & Sciences, proposent une nou
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CNRS Ile-de-France Villejuif @cnrs-idf-villejuif.bsky.social · 23/06/2025
Découvrez leurs profils ici 👉 www.iledefrance-villejuif.cnrs.fr/fr/cnrsinfo/... Mis en lumière par le photographe Vincent Moncorgé, leurs portraits seront publiés ici et sur @cnrs-paris.bsky.social durant tout l’été. Et une autre surprise arrive aussi bientôt... Pour tout savoir, restez connecté !
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CNRS Ile-de-France Villejuif @cnrs-idf-villejuif.bsky.social · 23/06/2025
La #ScienceTailleXXelles revient en lle-de-France ! 🤩 Nos 21 nouvelles ambassadrices sont mécatronicienne, archéobotaniste, exobiologiste, ou encore informaticienne👩‍🔬 Chercheuses, doctorantes, ingénieures et techniciennes, toutes ont à cœur de montrer que la science se conjugue aussi au féminin ! ⤵️
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 05/06/2025
☀️ Three papers from the Local team of the LIPN lab were accepted to the FSCD 2025 conference : fscd2025.github.io ❓ These papers study the categorical semantics of Concurrency, Complexity or Differentiation, confirming the strong categorical expertise of the Logic team at the @LipnLab!
fscd2025.github.io
FSCD 2025 - Birmingham, UK, 14-20 July 2025
International Conference on Formal Structures for Computation and Deduction
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 05/06/2025
👏 Proud to share a new paper from the IRISA and LIPN laboratories that was accepted to the ACL 2025 conference: Bregman CRFs for sequence labelling #NLProc #ACL2025NLP! Congratulations to Caio Corro (IRISA), Mathieu Lacroix (LIPN), and Joseph Leroux (LIPN)! 🔗 caio-corro.fr/pdf/bregman_...
caio-corro.fr
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 13/05/2025
💫 The @LipnLab is thrilled to welcome Meena Mahajan for one month as an invited professor starting May 19th. 🎓 Pr. Mahajan is a renowned international expert in complexity theory, notably algebraic complexity. She will be hosted at the @LipnLab by S. Perifel and P. Weil. 🔗 www.imsc.res.in/~meena/
A portrait of Meena Mahajan, taken from her website
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 13/05/2025
🤝 This work results from a collaboration between Inserm, Inria HeKA, AP-HP Department of Medical Informatics, and LORIA and LIPN laboratories. 🎓Congratulations to Aimé Nun, Olivier Birot, Gaël Guibon, Frédéric Lapostolle and Ivan Lerner !
huggingface.co
medkit/simsamu · Datasets at Hugging Face
We’re on a journey to advance and democratize artificial intelligence through open source and open science.
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 13/05/2025
⚕️ The new SIMAMU dataset dedicated to French Medical Dispatch Dialog is accepted to the Computer Methods and Programs in Biomedicine journal. 🔗 Access the dataset on Huggingface: huggingface.co/datasets/med...
huggingface.co
medkit/simsamu · Datasets at Hugging Face
We’re on a journey to advance and democratize artificial intelligence through open source and open science.
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Étienne André @etienneandre.bsky.social · 13/05/2025
Call for participation: 46th International Conference on Application and Theory of Petri Nets and Concurrency (Petri Nets 2025) Paris, France 🇫🇷🥐🗼 23-27 June 2025 Organized by @lipnlab.bsky.social @univ-spn.bsky.social ⏳ Early registration deadline: 21 May 2025 petrinets25.github.io/web/
petrinets25.github.io
Petri Nets 2025
The 46th International Conference on Application and Theory of Petri Nets and Concurrency
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Étienne André @etienneandre.bsky.social · 14/04/2025
Onze postes ATER (9 au département informatique de Galilée et 2 à l'IUT de Villetaneuse) sont ouverts à @univ-spn.bsky.social ; recherche au @lipnlab.bsky.social. www.univ-spn.fr/campagne-de-... Candidatures sur ALTAIR et sur ater.univ-paris13.fr avant le 24 avril 2025 (16h).
univ-spn.fr
Campagne de recrutement des attachés temporaires d’enseignement et de recherche au titre de l’année 2025 - Université Sorbonne Paris Nord
La campagne d’ATER, au sein de l’université Sorbonne Paris Nord pour la rentrée 2025/2026, est ouverte du mardi 25 mars 2025 (10 heures, heure de Paris) au jeudi 24 avril 2025 (16 heures, heure de Par...
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 31/03/2025
🍃On 1 April 2025, we are organising a day of talks on probability and combinatorics as part of the MathSTIC federation at @univ-spn.bsky.social. 🤝The day is co-organised by LAGA's Probability and Statistics team and LIPN's Combinatorics and Algorithms team. ❓Programme: lipn.fr/~cb/Seminair....
lipn.fr
LIPN : séminaire CALIN (Combinatoire, algorithmique et interactions), université Sorbonne-Paris-Nord
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 27/03/2025
🤝 Rafik Aguech is a professor at the University of Monastir. He specializes in probability theory and stochastic processes. 👨‍🏫 We're thrilled to welcome him as an invited professor at the @LipnLab between March 13th and April 6th. He will be an invited speaker at the MathStic Days on April 1st.
A portrait of Rafik Aguech
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 14/03/2025
❓ PACT is a novel method that reduces the inference time and memory usage of Visual Language Models, contributing to the community's efforts to make multimodal LLMs usage more frugal.
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 14/03/2025
📃 The paper "PACT: Pruning and Clustering-Based Token Reduction for Faster Visual Language Models", by Mohamed Dhouib (LIX), Davide Buscaldi (@LipnLab), Sonia Vanier (LIX) and Aymen SHABOU (Crédit Agricole) has been accepted at the CVPR 2025 conference.
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 13/03/2025
❓ In this work, the authors tackle company classification from financial statements and show that textual representation through language models yields strong classification performance, which is also explainable compared to numerical ones.
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 13/03/2025
📃 The publication "Linking Industry Sectors and Financial Statements: A Hybrid Approach for Company Classification" by Guy-Stephane Waffo Dzuyo (Loria - Forvis Mazars), G. Guibon @LipnLab, C. Cerisara (Loria) and L. Belmar Letelier (Forvis Mazars) was presented last week at #AAAI2025 conference.
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 12/03/2025
🎉 Davide Buscaldi will defend his Habilitation à diriger des recherches (HdR) on ‘Improving access to Scientific Literature with Knowledge Graphs and Large Language Models’. 📆 The defense will occur on Tuesday 18 March at 10 am, in room B107 at the @lipnlab.bsky.social.
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CNRS @cnrs.fr · 06/03/2025
#Communiqué 🗞️ Le CNRS exprime sa solidarité avec les scientifiques exerçant aux États-Unis, où la liberté académique est aujourd'hui mise à l’épreuve. 👉 www.cnrs.fr/fr/presse/le...
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 04/03/2025
☀️The "Complexity as a Kaleidoscope" research school will be held at the CIRM from 31 March to 4 April 2025. 🧑‍🤝‍🧑 It is co-organized by T. Seiller (@seiller.bsky.social) and S. Perifel, researcher and Full Professor at the @LipnLab. 🔗 Program and information: conferences.cirm-math.fr/3225.
conferences.cirm-math.fr
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CNRS Sciences informatiques @cnrsinformatics.bsky.social · 11/02/2025
#FemmesEnScience | En cette journée internationale des filles et femmes en sciences, revivez le 7 janvier où les #DécodeusesNumérique brisent les stéréotypes et encouragent les jeunes filles à envisager une carrière scientifique ! #WomenInTech ➡️ ins2i.cnrs.fr/fr/cnrsinfo/la…
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Étienne André @etienneandre.bsky.social · 10/02/2025
📃 Sujet de stage de développement, niveau M2 (ou dernière année d'école d'ingénieur). Sujet : réalisation d'une plateforme automatisée pour le bilan carbone du @lipnlab.bsky.social 🔥 Contact : lipn.univ-paris13.fr/stage-realis...
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 10/02/2025
💔 The Logic and Verification (LoVe) team has reached a critical size and has now separated into two brand-new teams! Meet: 📍 LoCal, the new Logic team; lipn.univ-paris13.fr/local-logic-... 📍 SAFER, the new Verification team. lipn.univ-paris13.fr/safer-2/
lipn.univ-paris13.fr
LoCal : Logic and Computation – LIPN
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 27/01/2025
#HelloESR #HelloQuitteX
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 24/01/2025
📢 We are recruiting! 3 Assistant Professors and 1 Full Professor Positions are open. ⏰ Interviews in the Spring of 2025. 👩‍🏫 Assistant Professors in Machine Learning, Combinatorics and Combinatorial Optimisation. 👩‍💻 Full Professor with a priority for NLP or ML. 🔗 lipn.univ-paris13.fr/recrutement/
© Christian MOREL / LIPN / CNRS Images

A researcher at LIPN is sitting on the floor of the Libary, showing a combinatoric representation on the screen of his computer.
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 24/01/2025
📢 We are recruiting! 3 Assistant Professors and 1 Full Professor Positions are open. ⏰ Interviews in the Spring of 2025. 👩‍🏫 Assistant Professors in Machine Learning, Combinatorics and Combinatorial Optimisation. 👩‍💻 Full Professor with a priority for NLP or ML. 🔗 lipn.univ-paris13.fr/recrutement/
© Christian MOREL / LIPN / CNRS Images

A researcher at LIPN is sitting on the floor of the Libary, showing a combinatoric representation on the screen of his computer.
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Étienne André @etienneandre.bsky.social · 16/01/2025
The paper submission deadline to Petri Nets 2025, organized by @lipnlab.bsky.social at @univ-spn.bsky.social in June 2025, is extended by one week ⌛️ petrinets25.github.io/web/cfp/
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 15/01/2025
We're also on mastodon, tooting from our own instance which is open to academic researchers in computer science ! lipn.info/@LipnLab
lipn.info
LipnLab (@LipnLab@lipn.info)
239 Posts, 23 Following, 220 Followers · The Laboratoire d'Informatique de Paris-Nord (LIPN) is a joint research unit between the CNRS and the Université Sorbonne Paris Nord (USPN), with 150 researche...
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Laboratoire d'Informatique de Paris Nord @lipnlab.bsky.social · 15/01/2025
#introduction 👋 The LIPN is a joint @cnrs.bsky.social and @univ-spn.bsky.social laboratory, with 6 research teams: - Machine Learning, - Combinatorial models, - Algorithms and combinatorial optimization, - Foundations of computation, - Formal verification, - NLP and knowledge representation.
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