no code implementations • 8 Sep 2023 • Huyên Pham, Xavier Warin
We develop a new policy gradient and actor-critic algorithm for solving mean-field control problems within a continuous time reinforcement learning setting.
no code implementations • 31 Jul 2023 • Thomas Deschatre, Xavier Warin
In this paper, we propose a multidimensional statistical model of intraday electricity prices at the scale of the trading session, which allows all products to be simulated simultaneously.
no code implementations • 20 Mar 2023 • Xavier Warin
We study news neural networks to approximate function of distributions in a probability space.
no code implementations • 22 Dec 2022 • Huyên Pham, Xavier Warin
This paper is devoted to the numerical resolution of McKean-Vlasov control problems via the class of mean-field neural networks introduced in our companion paper [25] in order to learn the solution on the Wasserstein space.
no code implementations • 27 Oct 2022 • Huyên Pham, Xavier Warin
We study the machine learning task for models with operators mapping between the Wasserstein space of probability measures and a space of functions, like e. g. in mean-field games/control problems.
no code implementations • 20 Jan 2021 • Maximilien Germain, Huyên Pham, Xavier Warin
This paper presents machine learning techniques and deep reinforcement learningbased algorithms for the efficient resolution of nonlinear partial differential equations and dynamic optimization problems arising in investment decisions and derivative pricing in financial engineering.
Optimization and Control Computational Finance
no code implementations • 6 Jan 2021 • Xavier Warin
We propose deep neural network algorithms to calculate efficient frontier in some Mean-Variance and Mean-CVaR portfolio optimization problems.
no code implementations • 1 Sep 2020 • Emma Hubert, Thibaut Mastrolia, Dylan Possamaï, Xavier Warin
In terms of technical results, we demonstrate the optimal form of the tax, indexed on the proportion of infected individuals, as well as the optimal effort of the population, namely the transmission rate chosen in response to this tax.
no code implementations • 7 Feb 2020 • Idris Kharroubi, Thomas Lim, Xavier Warin
We then focus on the approximation of the discretely constrained BSDE.
no code implementations • 31 Jul 2019 • Huyen Pham, Xavier Warin, Maximilien Germain
We propose a numerical method for solving high dimensional fully nonlinear partial differential equations (PDEs).
no code implementations • 14 Feb 2019 • Simon Fécamp, Joseph Mikael, Xavier Warin
We propose some machine-learning-based algorithms to solve hedging problems in incomplete markets.
no code implementations • 5 Feb 2019 • Côme Huré, Huyên Pham, Xavier Warin
We analyze the convergence of the deep learning schemes and provide error estimates in terms of the universal approximation of neural networks.
1 code implementation • 20 Sep 2018 • Quentin Chan-Wai-Nam, Joseph Mikael, Xavier Warin
Recent machine learning algorithms dedicated to solving semi-linear PDEs are improved by using different neural network architectures and different parameterizations.