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X-WR-CALDESC:Events for Namur Institute For Complex Systems
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DTSTART;TZID=Europe/Brussels:20260211T130000
DTEND;TZID=Europe/Brussels:20260211T140000
DTSTAMP:20260404T101731
CREATED:20260205T084741Z
LAST-MODIFIED:20260206T075147Z
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SUMMARY:Diego Samuel Rodrigues (University of Campinas\, SP\, Brazil)
DESCRIPTION:Title: Parameter Estimation for Ordinary Differential Equation Models in Cancer Research \nAbstract:  \nInferring parameter values from data is a fundamental problem in quantitative oncology. This seminar offers a concise\, example-driven overview of parameter estimation and experimental design for ordinary differential equation systems\, bridging theoretical foundations with practical applications in cancer research.\n\nThis seminar will take place in Room S0 at the Faculty of Sciences.
URL:https://www.naxys.be/event/diego-samuel-rodrigues-university-of-campinas-sp-brazil/
CATEGORIES:NAXYS Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Brussels:20260226T130000
DTEND;TZID=Europe/Brussels:20260226T140000
DTSTAMP:20260404T101731
CREATED:20251219T105508Z
LAST-MODIFIED:20260220T133944Z
UID:2599-1772110800-1772114400@www.naxys.be
SUMMARY:Federica Garin (Université Grenoble Alpes)
DESCRIPTION:Title: Graphons and opinion dynamics on large graphs. \nAbstract: \nGraphons are the limits of large dense graphs. Graphons can also be used to define families of random graphs (the so-called W-random graphs)\, similar to Erdős-Rényi random graphs but with some inhomogeneity in the edge probabilities. \nGraphons and W-random graphs\, together with their signed counterparts\, can be useful tools to study opinion dynamics on large-scale networks.  \nIn this talk\, I will review some recent work in this direction\, where we explore some infinite-dimensional dynamics associated with the graphon\, and we study how well they can approximate the corresponding dynamics associated with finite but large W-random graphs. \n  \nThis seminar will take place in Room S08 at the Faculty of Sciences.
URL:https://www.naxys.be/event/federica-garin-universite-grenoble-alpes/
CATEGORIES:NAXYS Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Brussels:20260416T130000
DTEND;TZID=Europe/Brussels:20260416T140000
DTSTAMP:20260404T101731
CREATED:20251219T105754Z
LAST-MODIFIED:20260325T102327Z
UID:2603-1776344400-1776348000@www.naxys.be
SUMMARY:Thomas Koffel (Université Claude Bernard Lyon 1)
DESCRIPTION:Title: From Metacommunities to Masting: How Spatial Structure Privatizes Environmental Benefits \nAbstract:  \nIndirect positive interactions\, mediated by environmental modification\, are central to niche construction and cooperation. However\, eco-evolutionary theory predicts that when modified environments are fully public\, the ‘tragedy of the commons’ favors cheaters\, destabilizing such processes. This talk explores how spatial structure overcomes this barrier through two complementary lines of work. First\, using a minimal stochastic model\, we show how competition-colonization dynamics in a patch-structured metacommunity allow cooperators to coexist with or even exclude cheaters. Second\, we demonstrate how environmental privatization at the individual level enables niche construction\, specifically in the context of masting (intermittent\, synchronous fruiting by trees). By satiating and starving seed consumers—a ‘public bad’—masting evolves as a coordinated defense strategy that effectively privatizes the benefits of predator control. Together\, these results underline how the scale of environmental modification fundamentally dictates the scale at which selection acts in ecosystems. \nThis seminar will take place in Room S08 at the Faculty of Sciences.
URL:https://www.naxys.be/event/thomas-koffel-universite-claude-bernard-lyon-1/
CATEGORIES:NAXYS Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Brussels:20260507T130000
DTEND;TZID=Europe/Brussels:20260507T140000
DTSTAMP:20260404T101731
CREATED:20260404T070617Z
LAST-MODIFIED:20260404T070741Z
UID:2653-1778158800-1778162400@www.naxys.be
SUMMARY:Koichiro Yawata (Institute of Science\, Tokyo)
DESCRIPTION:Title: Reduced-Order Control of Coupled Phase Oscillator Populations and Hypergraph-Based Approaches to Combinatorial Optimization Problems\n \nAbstract:  \nIn this seminar\, I will present two recent pieces of work from my research: one on reduced-order control of coupled oscillator populations and another on hypergraph-based approaches to combinatorial optimization. \n1. Reduced-Order Control of Coupled Oscillator Populations via Frequency-Dependent Forcing\nWe propose a frequency-dependent forcing framework for heterogeneous populations of coupled phase oscillators. Using the Ott-Antonsen ansatz\, we derive a low-dimensional description of the collective dynamics and study control methods for the macroscopic phase and synchronization level. \n2. Hypergraph Neural Networks Accelerate MUS Enumeration\nWe propose a hypergraph-neural-network-based method for accelerating MUS enumeration in constraint satisfaction problems. By combining hypergraph modeling with reinforcement learning\, the method reduces satisfiability checks and improves enumeration efficiency. \nThis seminar will take place in Room S08 at the Faculty of Sciences.
URL:https://www.naxys.be/event/koichiro-yawata-institute-of-science-tokyo/
CATEGORIES:NAXYS Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Brussels:20261001T130000
DTEND;TZID=Europe/Brussels:20261203T140000
DTSTAMP:20260404T101731
CREATED:20260402T100822Z
LAST-MODIFIED:20260402T100906Z
UID:2650-1790859600-1796306400@www.naxys.be
SUMMARY:Nelly Litvak (Eindhoven University of Technology)
DESCRIPTION:Title:  \nAbstract:  \nThis seminar will take place in Room S08 at the Faculty of Sciences.
URL:https://www.naxys.be/event/nelly-litvak-eindhoven-university-of-technology/
CATEGORIES:NAXYS Seminar
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