Archive for Institut Henri Poincaré
Cauchy’s head [jatp]
Posted in pictures, University life with tags Académie des Sciences, Augustin Cauchy, École Polytechnique, Bourbon kings, Charles X, Collège de France, French history, Institut Henri Poincaré, jatp, legitimists, Louis-Philippe, statute on August 1, 2021 by xi'an
maison Poincaré
Posted in Travel, University life with tags cofunding, France, Henri Poincaré, Institut Henri Poincaré, Nicolas Bourbaki, Paris, Quartier Latin, SMF, Société Mathématique de France on November 15, 2020 by xi'an
séminaire P de S
Posted in Books, pictures, Statistics, University life with tags Biometrika, computer-based proof, extreme value theory, Institut Henri Poincaré, neural network, Paris, probabilistic numerics, séminaire, seminar, stochastic gradient descent on February 18, 2020 by xi'an
As I was in Paris and free for the occasion (!), I attended the Paris Statistics seminar this afternoon, in the Latin Quarter. With a first talk by Kweku Abraham on Bayesian inverse problems set a prior on the quantity of interest, γ, rather than its transform G(γ), observed with noise. Always perturbed by the juggling of different distances, like L² versus Kullback-Leibler, in non-parametric frameworks. Reminding me of probabilistic numerics, at least in the framework, since the crux of the talk was 100% about convergence. And a second talk by Leanaïc Chizat on convex neural networks corresponding to an infinite number of neurons, with surprising properties, including implicit bias. And a third talk by Anne Sabourin on PCA for extremes. Which assumed very little on the model but more on the geometry of the distribution, like extremes being concentrated on a subspace. As I was rather tired from an intense week at Warwick, and after a weekend of reading grant applications and Biometrika submissions (!), my foggy brain kept switching to these proposals, trying to make connections with the talks, not completely inappropriately in two cases out of three. (I am afraid the same may happen tomorrow at our probability seminar on computer-based proofs!)
ateliers statistiques bayésiens
Posted in Statistics with tags ABC, computational Bayesian methods, IHP, Institut Henri Poincaré, rStan, SFDS, Société française de Statistique, STAN on July 18, 2019 by xi'an
The French Statistical Association is running a training workshop on practical computational Bayesian methods on 10-12 September 2019 in Paris (IHP), animated by Sylvain LE CORFF (Telecom SudParis – Institut Polytechnique de Paris) for the initiation to « rstan », by Matthieu AUTHIER (Université de La Rochelle).
graphe, graphons, graphez !
Posted in Books, pictures, Statistics, University life with tags graphs, Institut Henri Poincaré, mathematical statistics, Paris, phase transition, SFDS, variational Bayes methods on December 3, 2018 by xi'an
