numerical simulations – Page 2

« Adaptive high order stochastic descent algorithms » at the NANMAT 2022 conference

octobre 27, 2022septembre 22, 2023gabriel

This is a talk presented at the Numerical Analysis, Numerical Modeling, Approximation Theory (NA-NM-AT 2022) conference, Cluj-Napoca, Romania, Oct 26-28 2022

Talk materials: the slides of the presentation.

Abstract: motivated by statistical learning applications, the stochastic descent optimization algorithms are widely used today to tackle difficult numerical problems. One of the most known among them, the Stochastic Gradient Descent (SGD), has been extended in various ways resulting in Adam, Nesterov, momentum, etc. After a brief introduction to this framework, we introduce in this talk a new approach, called SGD-G2, which is a high order Runge-Kutta stochastic descent algorithm; the procedure allows for step adaptation in order to strike a optimal balance between convergence speed and stability. Numerical tests on standard datasets in machine learning are also presented together with further theoretical extensions.

« Algorithms that get old : the case of generative deep neural networks », LOD 2022 conference

septembre 19, 2022septembre 22, 2023gabriel

This is a talk presented at

The 8^th International Online & Onsite Conference on Machine Learning, Optimization, and Data Science – September 18 – 22, 2022 – Certosa di Pontignano, Siena – Tuscany, Italy

Talk materials: the slides of the presentation.

Workshop on « Models, Human Behaviour and Infectious Diseases », Institut Pasteur, Paris, May 23rd 2022

mai 22, 2022mai 22, 2022gabriel

Workshop on « Models, Human Behaviour and Infectious Diseases » of the Coordinated Action on Modelling of Infectious Diseases, Institut Pasteur, Paris May 23rd, 2022

Slides of the talk « From vaccination to lock-down compliance: Mean Field Games approaches to behavioral epidemiology »

Mathematical models in immunology: talk at UMI-MSE Seminar, Jan 22

janvier 27, 2022février 19, 2022gabriel

This is a talk titled « Mathematical models in immunology: weekly neutralizing antibodies, antibody dependent enhancement and reinfection » presented at the UMI-MSE Seminars

Talk materials: the slides of the presentation. and the VIDEO RECORDING HERE.

« Measure compression in generative and unsupervised learning » at the CPAM 2021 conference

novembre 20, 2021septembre 22, 2023gabriel

This is a talk presented 4th Current Trends in Applied Mathematics conference (held virtually in Iasi at the Romanian Academy of sciences, nov 20 2021) CPAM 2021 conference

Talk materials: the slides of the presentation. and the Video here.

« Convergence dynamics of Generative Adversarial Networks: the dual metric flows » at the CADL workshop (ICPR 2020 conference)

janvier 11, 2021septembre 22, 2023gabriel

This is a talk presented at the CADL (Computational Aspects of Deep Learning) workshop held during the 25th ICPR conference (held virtually in Milano, IT, Jan 10-15 2021) ICPR 2020 conference

Talk materials:

Stochastic Runge-Kutta methods and adaptive SGD-G2 stochastic gradient descent: talk at the ICPR 2020 conference

janvier 11, 2021septembre 23, 2022gabriel

This is a talk on a joint work with Imen Ayadi presented at the 25th ICPR conference (held virtually in Milano, IT, Jan 10-15 2021) ICPR 2020 conference

Talk materials: Youtube Video of the presentation and the slides of the presentation.