Event List
retrieve:
Return the details about the given Event id.
list:
List all Event objects.
GET /api/v1/events/?format=api&offset=170&ordering=event__url_place_and_room
{ "count": 236, "next": "https://memento.epfl.ch/api/v1/events/?format=api&limit=10&offset=180&ordering=event__url_place_and_room", "previous": "https://memento.epfl.ch/api/v1/events/?format=api&limit=10&offset=160&ordering=event__url_place_and_room", "results": [ { "id": 72028, "title": "EPFL Pre-ICML 2026 Poster Session", "slug": "epfl-pre-icml-2026-poster-session-2", "event_url": "https://memento.epfl.ch/event/epfl-pre-icml-2026-poster-session-2", "visual_url": "https://memento.epfl.ch/image/33323/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/33323/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/33323/max-size.jpg", "lang": "en", "start_date": "2026-06-29", "end_date": "2026-06-29", "start_time": "16:00:00", "end_time": "19:00:00", "description": "<p>The ELLIS Lausanne Unit and the EPFL AI Center are pleased to host the <strong>EPFL Pre-ICML 2026 Poster Session</strong>, an informal research gathering highlighting recent contributions from the EPFL community to <strong>ICML 2026</strong> and other leading machine learning conferences and workshops.<br>\r\n<br>\r\nThis poster session is a great opportunity for researchers to showcase their work, discover ongoing projects across EPFL’s machine learning ecosystem, and connect with fellow researchers ahead of ICML.<br>\r\n<br>\r\n<u><strong>Registration required, present your poster: <a href=\"https://forms.office.com/e/TG2tf9fp7a\">HERE</a></strong></u><br>\r\n<br>\r\nThe session will primarily feature posters of papers accepted to <strong>ICML 2026</strong>. Priority will be given to:\r\n</p><ol start=\"1\">\r\n\t<li>ICML 2026 conference papers</li>\r\n\t<li>ICML 2026 workshop papers</li>\r\n\t<li>Other peer-reviewed papers from major machine learning conferences and workshops, subject to space availability</li>\r\n</ol>\r\nThe event will include an open poster session followed by informal networking over coffee and refreshments.<br>\r\n<br>\r\n<strong>Programme</strong><br>\r\n16:00–16:30 — Arrival & Poster set-up<br>\r\n16:30–18:30 — Poster Session & Networking<br>\r\n18:30–19:00 — Wrap-up<br>\r\n<br>\r\nThe full list of confirmed posters and presenters will be shared closer to the event date.<br>\r\n<br>\r\nThis event is part of the <a href=\"https://ellis.eu/events/ellis-sites-icml-fest-2026\">ELLIS Sites ICML Fest 2026: Celebrate, Connect, Collaborate</a>.", "image_description": "", "creation_date": "2026-06-03T15:30:05", "last_modification_date": "2026-06-05T11:06:57", "link_label": "Registration required", "link_url": "https://forms.office.com/e/TG2tf9fp7a", "canceled": "False", "cancel_reason": "", "place_and_room": "ELE 117", "url_place_and_room": "https://plan.epfl.ch/?room==ELE%20117", "url_online_room": "", "spoken_languages": [], "speaker": "", "organizer": "ELLIS Lausanne Unit & EPFL AI Center", "contact": "Nicolas Machado", "is_internal": "False", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120970/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/27/?format=api", "https://memento.epfl.ch/api/v1/mementos/416/?format=api" ] }, { "id": 72033, "title": "AI Center Seminar - AI Fundamentals series - Emanuel Tewolde - \"Benchmarking Cooperation-Sustaining Mechanisms and LLM Agents in Social Dilemmas\"", "slug": "ai-center-seminar-ai-fundamentals-series-emanuel-t", "event_url": "https://memento.epfl.ch/event/ai-center-seminar-ai-fundamentals-series-emanuel-t", "visual_url": "https://memento.epfl.ch/image/33328/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/33328/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/33328/max-size.jpg", "lang": "en", "start_date": "2026-06-15", "end_date": "2026-06-15", "start_time": "14:30:00", "end_time": "15:30:00", "description": "<p>The talk is jointly organized by the <a href=\"https://ai.epfl.ch/\">EPFL AI Center</a> and the <a href=\"https://dlab.epfl.ch/\">DLAB</a> as part of the AI fundamentals seminar series.<br>\r\n<br>\r\n<strong><em>Hosting professor: Prof. Robert West (DLAB)</em></strong><br>\r\n<br>\r\n<strong>Title</strong><br>\r\nBenchmarking Cooperation-Sustaining Mechanisms and LLM Agents in Social Dilemmas<br>\r\n<br>\r\n<strong>Abstract</strong><br>\r\nIt is increasingly important that LLM agents interact effectively and safely with other goal-pursuing agents, yet, recent works report the opposite trend: LLMs with stronger reasoning capabilities behave _less_ cooperatively in mixed-motive games such as the prisoner's dilemma and public goods settings. Indeed, our experiments show that recent models---with or without reasoning enabled---consistently defect in single-shot social dilemmas.<br>\r\n <br>\r\nTo tackle this safety concern, we present the first comparative study of game-theoretic mechanisms designed to enable cooperative outcomes between rational agents _in equilibrium_. Across four social dilemmas testing distinct components of robust cooperation, we evaluate four families of mechanisms: (1) repeating the game for many rounds, (2) reputation systems, (3) third-party mediators to delegate decision making to, and (4) contract agreements for outcome-conditional payments between players. Among our findings, we establish that contracting and mediation are most effective in achieving cooperative outcomes between capable LLM models, and that repetition-induced cooperation deteriorates drastically when co-players vary. Moreover, we demonstrate that the mechanisms become _more effective_ under evolutionary pressures to maximize individual payoffs.<br>\r\n<br>\r\n<strong>Bio</strong><br>\r\n<br>\r\nEmanuel Tewolde is a fourth-year Computer Science PhD student at Carnegie Mellon University advised by Vincent Conitzer. His research focuses on algorithmic game theory, reinforcement learning, and LLM agents, with an emphasis on the safety, coordination, cooperation, and alignment of AI systems. Ultimately, he strives to understand how to enable artificial intelligence and humans to effectively achieve better social outcomes in strategic interactions.<br>\r\n<br>\r\nEmanuel’s work is supported by the Cooperative AI PhD Fellowship, and has previously received the AAAI 2025 Best Poster Award. He has previously worked on AI research agents with Meta FAIR, and researched ML methods for renewable energy systems with the Fraunhofer-Gesellschaft. Prior to CMU, he completed Master’s and Bachelor’s degrees in Mathematics at Imperial College London and the Technical University of Darmstadt respectively.</p>", "image_description": "", "creation_date": "2026-06-03T15:43:01", "last_modification_date": "2026-06-03T16:00:47", "link_label": "Zoom Link", "link_url": "https://epfl.zoom.us/j/65116073738?pwd=RSMy92kZvAC22JaNqVTJ8tzFyhVJvv.1", "canceled": "False", "cancel_reason": "", "place_and_room": "ELE 117", "url_place_and_room": "https://plan.epfl.ch/?room==ELE%20117", "url_online_room": "https://epfl.zoom.us/j/65116073738?pwd=RSMy92kZvAC22JaNqVTJ8tzFyhVJvv.1", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Emanuel Tewolde", "organizer": "EPFL AI Center & EPFL DLAB", "contact": "Nicolas Machado", "is_internal": "False", "theme": "", "vulgarization": { "id": 1, "fr_label": "Tout public", "en_label": "General public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120975/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/27/?format=api", "https://memento.epfl.ch/api/v1/mementos/416/?format=api" ] }, { "id": 72039, "title": "AI Center Seminar - AI Fundamentals series - Dr. Nir Sochen", "slug": "ai-center-seminar-ai-fundamentals-series-dr-nir-so", "event_url": "https://memento.epfl.ch/event/ai-center-seminar-ai-fundamentals-series-dr-nir-so", "visual_url": "https://memento.epfl.ch/image/33342/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/33342/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/33342/max-size.jpg", "lang": "en", "start_date": "2026-06-24", "end_date": "2026-06-24", "start_time": "14:00:00", "end_time": "15:00:00", "description": "<p>The talk is jointly organized by the <a href=\"https://ai.epfl.ch/\">EPFL AI Center</a> and the EPFL Signal Processing Laboratory (LTS5) as part of the AI Fundamentals seminar series.<br>\r\n<br>\r\n<em><strong>Host: Prof. Jean-Philippe Thiran</strong></em><br>\r\n<br>\r\n<strong>Title</strong><br>\r\nDeep Learning Solution of the Eigenvalue Problem for Differential Operators<br>\r\n<br>\r\n<strong>Abstract</strong><br>\r\nSolving the eigenvalue problem for differential operators is a common problem in many scientific fields. We introduce a novel Neural Network (NN) -based solver for the eigenvalue problem of differential self-adjoint operators, where the eigenpairs are learned in an unsupervised end-to-end fashion. We propose several training procedures for solving increasingly challenging tasks towards the general eigenvalue problem. The proposed solver is capable of finding the M smallest eigenpairs for a general linear differential operator. Our proposed method simultaneously solves several eigenpairs and can be easily used on free-form domains. We exemplify it on L-shape and circular cut domains. A significant contribution of this<br>\r\nwork is an analysis of the numerical error of this method. In particular an upper bound for the (unknown) solution error is given in terms of the (measured) truncation error of the PDE and the network structure.<br>\r\n<br>\r\n<strong>Bio</strong><br>\r\nNir Sochen, finished his B.Sc studies in Physics 1986 and his M.Sc. studies in theoretical physics 1988 both in the University of Tel-Aviv. Received his PhD in Theoretical physics 1992 from the Universit\\’e de Paris-Sud while conducting his research in the Service de Physique Th\\’eorique at the Centre d’Etude Nucleaire at Saclay, France. He continued with a one year research in the Ecole Normale Superieure in Paris on the Haute Etude Scientifique fellowship, and a three years NSF fellowship in the physics department of the University of California at Berkeley. It is in Berkeley that his interests shifted from quantum field theories and integrable models, related to high-energy physics and string theory, to computer vision and image processing. He spent one year in the physics department at the University of Tel-Aviv and two years in the Faculty of Electrical Engineering in the Technion-Israel Institute of Technology. Currently he is a senior lecturer in the Department of Applied Mathematics, University of Tel-Aviv. He is also a member of the Ollendorf center in the Technion.<br>\r\nHis main research interests are the applications of differential geometry and statistical physics in image processing and computational vision.<br>\r\n </p>", "image_description": "", "creation_date": "2026-06-04T10:15:52", "last_modification_date": "2026-06-05T15:17:12", "link_label": "Zoom Link", "link_url": "https://epfl.zoom.us/j/67729865713?pwd=3F1Ua3rNMzhIRxb6fKq047RQvaZAEF.1", "canceled": "False", "cancel_reason": "", "place_and_room": "ELE 117", "url_place_and_room": "https://plan.epfl.ch/?room==ELE%20117", "url_online_room": "https://epfl.zoom.us/j/67729865713?pwd=3F1Ua3rNMzhIRxb6fKq047RQvaZAEF.1", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Prof. Nir Sochen", "organizer": "EPFL AI Center", "contact": "Nicolas Machado", "is_internal": "False", "theme": "", "vulgarization": { "id": 1, "fr_label": "Tout public", "en_label": "General public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120985/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/27/?format=api", "https://memento.epfl.ch/api/v1/mementos/416/?format=api" ] }, { "id": 71914, "title": "Random Geometry & Number Theory", "slug": "random-geometry-number-theory", "event_url": "https://memento.epfl.ch/event/random-geometry-number-theory", "visual_url": "https://memento.epfl.ch/image/33232/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/33232/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/33232/max-size.jpg", "lang": "en", "start_date": "2026-06-22", "end_date": "2026-07-03", "start_time": "10:00:00", "end_time": "12:30:00", "description": "<p>The two-week event will broadly focus on spectral geometry, hyperbolic surfaces, and number theory, with the primary goal of fostering connections between these areas. By bringing together young researchers and engaging them in ongoing discussions around these topics, we aim to encourage collaboration and stimulate progress across these fields.<br>\r\nThe first week will feature mini-courses delivered by young participants, providing an opportunity for early-career researchers to share their expertise.<br>\r\nThe second week will consist of research-level talks by experts, highlighting recent developments in the field.</p>", "image_description": "", "creation_date": "2026-05-20T16:15:33", "last_modification_date": "2026-06-02T11:23:13", "link_label": "Random Geometry & Number Theory", "link_url": "https://nihargargava.com/wiki/rgnt", "canceled": "False", "cancel_reason": "", "place_and_room": "Bernoulli Center", "url_place_and_room": "https://plan.epfl.ch/?room==GA%203%2021", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "<strong>Speakers & </strong><strong>Topics</strong> Kristian Holm - Rogers integration formula Maria-Romina Ivan- Turan density problems in the hypercube Radu Toma - Automorphic forms Yuhao Xue - Random hyperbolic surfaces", "organizer": "Nalini Anantharaman, Collège de France<br>\r\nMingkun Liu, University Sorbonne Paris Nord<br>\r\nNihar Gargava, University Paris-Saclay<br>\r\nIlaria Viglino, EPFL", "contact": "[email protected]", "is_internal": "False", "theme": "", "vulgarization": { "id": 3, "fr_label": "Expert", "en_label": "Expert" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "random geometry, number theory", "file": "https://memento.epfl.ch/public/upload/files/Afficherevamped.pdf", "icalendar_url": "https://memento.epfl.ch/event/export/120817/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/7/?format=api", "https://memento.epfl.ch/api/v1/mementos/27/?format=api", "https://memento.epfl.ch/api/v1/mementos/145/?format=api", "https://memento.epfl.ch/api/v1/mementos/400/?format=api" ] }, { "id": 71955, "title": "Markovian analysis of Zebrafish swimming", "slug": "markovian-analysis-of-zebrafish-swimming", "event_url": "https://memento.epfl.ch/event/markovian-analysis-of-zebrafish-swimming", "visual_url": "https://memento.epfl.ch/image/33263/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/33263/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/33263/max-size.jpg", "lang": "en", "start_date": "2026-06-10", "end_date": "2026-06-10", "start_time": "14:30:00", "end_time": "15:30:00", "description": "<strong>Abstract :</strong><br>\r\nIn this interactive Python tutorial, we will learn how Markovian frameworks can be used to analyze and model spontaneous locomotion from behavioral time series. We will use zebrafish reorientation behavior as example.<br>\r\nStarting from discrete swim-bout sequences, we will introduce Markov chains as tools for quantifying transition structure, behavioral persistence, and temperature-dependent changes in exploratory strategies. <br>\r\nIf time allows, we will then extend this approach to Hidden Markov Models, showing how latent behavioral states can be inferred directly from continuous kinematic observations. <br>\r\n<br>\r\n<br>\r\n<strong>This Talk is part of the Bernoulli workshop <a href=\"https://www.epfl.ch/labs/lpbs/bernoulli-workshop-2026-peering-through-behavior-into-the-brain/\">Peering through Behavior into the Brain</a></strong>", "image_description": "", "creation_date": "2026-05-27T13:15:24", "last_modification_date": "2026-06-05T11:14:44", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "GA 3 21", "url_place_and_room": "https://plan.epfl.ch/?room==GA%203%2021", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Prof. Mattéo Dommanget-Kott <[email protected]> ", "organizer": "Prof. Sahand Jamal Rahi <[email protected]> Johanni Brea <[email protected]>", "contact": "Prof. Sahand Jamal Rahi <[email protected]> Johanni Brea <[email protected]>", "is_internal": "False", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120870/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/9/?format=api", "https://memento.epfl.ch/api/v1/mementos/111/?format=api" ] }, { "id": 72002, "title": "From instability to efficiency: sensorimotor strategies for locomotion in fish", "slug": "from-instability-to-efficiency-sensorimotor-stra-2", "event_url": "https://memento.epfl.ch/event/from-instability-to-efficiency-sensorimotor-stra-2", "visual_url": "https://memento.epfl.ch/image/33298/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/33298/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/33298/max-size.jpg", "lang": "en", "start_date": "2026-06-09", "end_date": "2026-06-09", "start_time": "09:00:00", "end_time": "10:00:00", "description": "<strong>Abstract</strong>: Animal locomotion arises from a continuous feedback loop between motor commands and sensory inputs. From a physical perspective, this loop faces fundamental challenges: time delays can lead to instabilities, the relationship between action and sensory feedback is context-dependent, and both body and environment evolve over time. How biological systems achieve stable yet flexible behavior under these constraints remains an open question. In this talk, I will present experiments performed on a miniature and transparent fish, combining quantitative behavioral assays with brain-wide neuronal recordings. I will first show how stable navigation can emerge from a simple feedback mechanism, provided that sensory and motor transformations are nonlinear. I will then turn to locomotor development. Using freely swimming assays, we identify a transition from continuous swimming in larvae to an intermittent burst-and-glide strategy in juveniles. Our analysis shows that this transition, which is energetically optimal, reflects an in-built bifurcation in the dynamical system governing speed control. Together, these results show how animals exploit nonlinearities and instabilities of their sensorimotor systems to achieve efficient and adaptive locomotion.<br>\r\n<br>\r\n<strong>This Talk is part of the Bernoulli workshop <a href=\"https://www.epfl.ch/labs/lpbs/bernoulli-workshop-2026-peering-through-behavior-into-the-brain/\">Peering through Behavior into the Brain</a></strong>", "image_description": "", "creation_date": "2026-06-01T17:52:09", "last_modification_date": "2026-06-05T14:13:14", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "GA 3 21", "url_place_and_room": "https://plan.epfl.ch/?room==GA%203%2021", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Prof. Georges Debregeas", "organizer": "Prof. Sahand Jamal Rahi <[email protected]> Johanni Brea <[email protected]>", "contact": "Prof. Sahand Jamal Rahi <[email protected]> Johanni Brea <[email protected]>", "is_internal": "False", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120934/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/9/?format=api", "https://memento.epfl.ch/api/v1/mementos/111/?format=api" ] }, { "id": 72003, "title": "Unveiling Temporal Organization in Behavior and Neural Circuit Dynamics", "slug": "unveiling-temporal-organization-in-behavior-and-ne", "event_url": "https://memento.epfl.ch/event/unveiling-temporal-organization-in-behavior-and-ne", "visual_url": "https://memento.epfl.ch/image/33299/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/33299/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/33299/max-size.jpg", "lang": "en", "start_date": "2026-06-10", "end_date": "2026-06-10", "start_time": "10:30:00", "end_time": "11:30:00", "description": "<strong>Abstract</strong>:<br>\r\nHow can we describe and model spontaneous behavior, i.e., activity that is not explicitly driven by sensory inputs? In this talk, I will present recent approaches to model the temporal organization of self-initiated actions across a range of model organisms. The resulting behavioral structure suggests the existence of coordinated large-scale neural dynamics, in which brain activity hops between successive, long-lasting neural states. I will discuss methods for extracting these dynamics, and how they can help uncover the principles governing the temporal organization of both behavior and neural activity. <br>\r\n<br>\r\n<br>\r\n<strong>This Talk is part of the Bernoulli workshop <a href=\"https://www.epfl.ch/labs/lpbs/bernoulli-workshop-2026-peering-through-behavior-into-the-brain/\">Peering through Behavior into the Brain</a></strong><br>\r\n<br>\r\n ", "image_description": "", "creation_date": "2026-06-01T17:55:35", "last_modification_date": "2026-06-05T14:12:20", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "GA 3 21", "url_place_and_room": "https://plan.epfl.ch/?room==GA%203%2021", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Prof. Georges Debregeas ", "organizer": "Prof. Sahand Jamal Rahi <[email protected]> Johanni Brea <[email protected]>", "contact": "Prof. Sahand Jamal Rahi <[email protected]> Johanni Brea <[email protected]>", "is_internal": "False", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120935/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/9/?format=api", "https://memento.epfl.ch/api/v1/mementos/111/?format=api" ] }, { "id": 72011, "title": "From systematic interneuron perturbations to connectome-constrained dynamics", "slug": "from-systematic-interneuron-perturbations-to-conne", "event_url": "https://memento.epfl.ch/event/from-systematic-interneuron-perturbations-to-conne", "visual_url": "https://memento.epfl.ch/image/33305/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/33305/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/33305/max-size.jpg", "lang": "en", "start_date": "2026-06-09", "end_date": "2026-06-09", "start_time": "11:30:00", "end_time": "12:30:00", "description": "<p>Quantitative understanding of neural control over behavior requires characterizing computations performed along information-processing pathways. In principle, Caenorhabditis elegans is ideally suited for this goal since it generates non-trivial, context-dependent behavior with a relatively small nervous system. Existing anatomical and functional connectomes represent major advances but also miss important synaptic details and critical connectivities, respectively. Whole-brain functional imaging, another important approach, by itself only reveals correlations. A perturbation-based, causal atlas is needed to pin down neuronal computations in the context of behavior, including redundancies, synergies, and time constants. We sought to satisfy this need through systematic chemogenetic perturbation, combined with connectome-constrained generative modeling. Using reversible chemogenetic silencing combined with whole-brain calcium imaging, we silenced seven head interneurons individually and in pairs: two act as opposing controllers of forward-reverse states, interneuron activity predicts behavior at lags of 15-25 seconds, and pairwise silencing reveals structured non-additivity. In parallel, we developed a connectome-constrained recurrent dynamical system trained on freely-behaving whole-brain recordings, with three current layers (gap-junction, fast-synaptic, extrasynaptic) and multi-timescale kinetics. On a 40-animal cohort, our architecture beats unconstrained baselines, ties anatomy-masked models on neural prediction, and transfers across animals by relabeling parameters alone, while anatomy-masked baselines collapse to negative R^2. Three independent analyses recover the canonical locomotor circuit without being built in. The two approaches converge on the same interneuron, identified by silencing as a key modulator of reversal behavior. Our work demonstrates advantages of integrating cell-specific perturbation with connectome-constrained modeling, and motivates extending this approach to larger nervous systems.<br>\r\n<br>\r\n<strong>This Talk is part of the Bernoulli workshop <a href=\"https://www.epfl.ch/labs/lpbs/bernoulli-workshop-2026-peering-through-behavior-into-the-brain/\">Peering through Behavior into the Brain</a></strong></p>", "image_description": "", "creation_date": "2026-06-02T14:00:23", "last_modification_date": "2026-06-05T14:13:57", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "GA 3 21", "url_place_and_room": "https://plan.epfl.ch/?room==GA%203%2021", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Alisa Gross <[email protected]>", "organizer": "Prof. Sahand Jamal Rahi <[email protected]> Johanni Brea <[email protected]>", "contact": "Prof. Sahand Jamal Rahi <[email protected]> Johanni Brea <[email protected]>", "is_internal": "False", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120947/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/9/?format=api", "https://memento.epfl.ch/api/v1/mementos/111/?format=api" ] }, { "id": 72049, "title": "Measuring what matters: when, what, and how to phenotype C. elegans behavior at scale", "slug": "measuring-what-matters-when-what-and-how-to-phenot", "event_url": "https://memento.epfl.ch/event/measuring-what-matters-when-what-and-how-to-phenot", "visual_url": "https://memento.epfl.ch/image/33341/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/33341/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/33341/max-size.jpg", "lang": "en", "start_date": "2026-06-09", "end_date": "2026-06-09", "start_time": "15:30:00", "end_time": "16:30:00", "description": "<p>Many important physiological processes such as aging arise from activities and events spanning different time scales. Yet typical measurements only capture snapshots or brief recording windows, and contain little information. To better understand these processes, we need to address the following questions: <em>When</em> (and for how long) do we record to resolve aging-relevant dynamics? <em>What</em> behavioral phenotypes (beyond locomotion) capture changes? <em>How</em> do we scale such measurements across many individuals while having exquisite control? In this talk, I will show how we measure behavioral dynamics over long periods of time, in many worms in parallel, and under well-controlled conditions. I will also share how additional behavioral phenotypes can be measured on a large scale beyond locomotion. Lastly, I will share an example of enhancing how behavior can be “expressed” in experimental setups.<br>\r\n<br>\r\n<br>\r\n<strong>This Talk is part of the Bernoulli workshop <a data-reader-unique-id=\"9\" href=\"https://www.epfl.ch/labs/lpbs/bernoulli-workshop-2026-peering-through-behavior-into-the-brain/\">Peering through Behavior into the Brain</a></strong></p>", "image_description": "", "creation_date": "2026-06-05T15:12:18", "last_modification_date": "2026-06-05T15:12:18", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "GA 3 21", "url_place_and_room": "https://plan.epfl.ch/?room==GA%203%2021", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Prof. Lu, Hang <[email protected]> ", "organizer": "Prof. Sahand Jamal Rahi <[email protected]>\r\n\r\nJohanni Brea <[email protected]>", "contact": "Prof. Sahand Jamal Rahi <[email protected]>\r\n\r\nJohanni Brea <[email protected]>", "is_internal": "False", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120998/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/9/?format=api", "https://memento.epfl.ch/api/v1/mementos/111/?format=api" ] }, { "id": 72050, "title": "Compression of a small neural circuit", "slug": "compression-of-a-small-neural-circuit", "event_url": "https://memento.epfl.ch/event/compression-of-a-small-neural-circuit", "visual_url": "https://memento.epfl.ch/image/33343/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/33343/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/33343/max-size.jpg", "lang": "en", "start_date": "2026-06-09", "end_date": "2026-06-09", "start_time": "14:30:00", "end_time": "15:30:00", "description": "<p>The ability of animals to generate goal-oriented motor behaviors ensures their survival. Combining connectomics, genetics, optogenetics, and electrophysiology, we have begun to reveal cellular mechanisms that drive the motor behaviors of <em>C. elegans</em>, an animal with a small and non-spiking nervous system. I will present published and unpublished progress that describes the underlying of motor rhythm, motor rhythm modulation, and motor state organization. These results imply fascinating functional compression and computation that enables a small nervous system to serve as a compact model to dissect the organizational logic of circuits, and how it might be compared across neural systems with vastly different anatomy and membrane physiology.<br>\r\n<br>\r\n<br>\r\n<strong>This Talk is part of the Bernoulli workshop <a data-reader-unique-id=\"9\" href=\"https://www.epfl.ch/labs/lpbs/bernoulli-workshop-2026-peering-through-behavior-into-the-brain/\">Peering through Behavior into the Brain</a></strong></p>", "image_description": "", "creation_date": "2026-06-05T15:54:13", "last_modification_date": "2026-06-05T15:54:13", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "GA 3 21", "url_place_and_room": "https://plan.epfl.ch/?room==GA%203%2021", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Prof. Mei Zhen <[email protected]> ", "organizer": "Prof. Sahand Jamal Rahi <[email protected]> \r\n\r\nJohanni Brea <[email protected]>", "contact": "Prof. Sahand Jamal Rahi <[email protected]> \r\n\r\nJohanni Brea <[email protected]>", "is_internal": "False", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120999/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/9/?format=api", "https://memento.epfl.ch/api/v1/mementos/111/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api" ] } ] }
