no code implementations • 5 Dec 2023 • Céline Comte, Matthieu Jonckheere, Jaron Sanders, Albert Senen-Cerda
Specifically, when the stationary distribution of the MDP belongs to an exponential family that is parametrized by policy parameters, we can improve existing policy gradient methods for average-reward RL.
Model-based Reinforcement Learning Policy Gradient Methods +1
no code implementations • 30 Nov 2023 • Frédéric Chazal, Laure Ferraris, Pablo Groisman, Matthieu Jonckheere, Frédéric Pascal, Facundo Sapienza
The Fermat distance has been recently established as a useful tool for machine learning tasks when a natural distance is not directly available to the practitioner or to improve the results given by Euclidean distances by exploding the geometrical and statistical properties of the dataset.
no code implementations • 13 Nov 2023 • Pierre Houdouin, Matthieu Jonckheere, Frederic Pascal
Although linear and quadratic discriminant analysis are widely recognized classical methods, they can encounter significant challenges when dealing with non-Gaussian distributions or contaminated datasets.
no code implementations • 25 Oct 2023 • Matthieu Jonckheere, Chiara Mignacco, Gilles Stoltz
Structured reinforcement learning leverages policies with advantageous properties to reach better performance, particularly in scenarios where exploration poses challenges.
no code implementations • 4 Jul 2023 • Pierre Houdouin, Matthieu Jonckheere, Frederic Pascal
Linear and Quadratic Discriminant Analysis (LDA and QDA) are well-known classical methods but can heavily suffer from non-Gaussian distributions and/or contaminated datasets, mainly because of the underlying Gaussian assumption that is not robust.
no code implementations • 1 Oct 2022 • Harry Sevi, Matthieu Jonckheere, Argyris Kalogeratos
In this paper, we introduce a new clustering framework, the Parametrized Random Walk Diffusion Kernel Clustering (P-RWDKC), which is suitable for handling both directed and undirected graphs.
no code implementations • 7 Mar 2022 • Harry Sevi, Matthieu Jonckheere, Argyris Kalogeratos
In this paper, we present a generalized spectral clustering framework that can address both directed and undirected graphs.
1 code implementation • 9 Jan 2022 • Pierre Houdouin, Frédéric Pascal, Matthieu Jonckheere, Andrew Wang
Linear and Quadratic Discriminant Analysis are well-known classical methods but can heavily suffer from non-Gaussian distributions and/or contaminated datasets, mainly because of the underlying Gaussian assumption that is not robust.
no code implementations • 14 Dec 2020 • Yamila Barrera, Leonardo Boechi, Matthieu Jonckheere, Vincent Lefieux, Dominique Picard, Ezequiel Smucler, Agustin Somacal, Alfredo Umfurer
The Reseau de Transport d'Electricit\'e (RTE) is the French main electricity network operational manager and dedicates large number of resources and efforts towards understanding climate time series data.
no code implementations • 3 Mar 2020 • Elene Anton, Urtzi Ayesta, Matthieu Jonckheere, Ina Verloop
As such, our result is the first in showing that redundancy can improve the stability and hence performance of a system when copies are non-i. i. d..
Networking and Internet Architecture Probability
no code implementations • 6 Feb 2020 • Agustín Somacal, Yamila Barrera, Leonardo Boechi, Matthieu Jonckheere, Vincent Lefieux, Dominique Picard, Ezequiel Smucler
SINDy is a method for learning system of differential equations from data by solving a sparse linear regression optimization problem [Brunton et al., 2016].
2 code implementations • 2 Jul 2019 • Violeta Roizman, Matthieu Jonckheere, Frédéric Pascal
Though very popular, it is well known that the EM for GMM algorithm suffers from non-Gaussian distribution shapes, outliers and high-dimensionality.
2 code implementations • 22 Oct 2018 • Pablo Groisman, Matthieu Jonckheere, Facundo Sapienza
Consider an i. i. d.
Probability 60D05, 62G99