~~NOCACHE~~

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\\ ==== Prochaines séances ====
[[seminaires:SemDoc:index|Séminaire doctoral du LPSM]]\\
Mardi 7 avril 2026, 17 heures 30, Sophie Germain - Salle 1013 (1er étage)\\
**Bixuan Liu + Gaspard Gomez**  //Identifiability of VAR(1) model in a stationary setting (B. Liu) + TBA//
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This work addresses the identifiability of First-order Vector AutoRegressive (VAR(1)) models in a stationary setting where time-series observations are unavailable, a common challenge in ecological research limited to independent samples from a stationary distribution. Recovering the dynamic interaction graph from static data is non-trivial because the autoregressive interaction graph does not coincide with the graphical model of the steady-state distribution, rendering standard Gaussian Graphical Model tools inapplicable. To resolve this, we adopt an approach from algebraic statistics, using Jacobian matroids of the model’s parametrization map to derive sufficient graphical conditions under which distinct dynamic networks yield distinguishable stationary distributions. This offers a framework for reconstructing dynamical interactions solely from equilibrium data.

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TBA
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Organisation : Sacha Quayle, Thomas Le Guerch, Nina Drobac, Pierre Faugere, Eyal Vayness

[[seminaires:SemDoc:index|Séminaire doctoral du LPSM]]\\
Mardi 5 mai 2026, 17 heures 30, Jussieu, Salle Paul Lévy, 16-26 209\\
**Lilian Say + Benjamin Massat**  //TBA + TBA//
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Organisation : Sacha Quayle, Thomas Le Guerch, Nina Drobac, Pierre Faugere, Eyal Vayness

[[seminaires:SemDoc:index|Séminaire doctoral du LPSM]]\\
Mardi 19 mai 2026, 17 heures 30, Sophie Germain - Salle 1013 (1er étage)\\
**Tba + Tba**  //TBA + TBA//
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Organisation : Sacha Quayle, Thomas Le Guerch, Nina Drobac, Pierre Faugere, Eyal Vayness

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\\ ==== Séances passées ====
\\ === Année 2026 ===

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\\ === Année 2025 ===

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\\ === Année 2024 ===

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\\ === Année 2023 ===

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\\ === Année 2022 ===

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\\ === Année 2021 ===

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\\ === Année 2020 ===

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\\ === Année 2019 ===

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\\ === Année 2018 ===

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