Search Results for author: Xavier Warin

Found 13 papers, 1 papers with code

Actor critic learning algorithms for mean-field control with moment neural networks

no code implementations8 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.

A Common Shock Model for multidimensional electricity intraday price modelling with application to battery valuation

no code implementations31 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.

Quantile and moment neural networks for learning functionals of distributions

no code implementations20 Mar 2023 Xavier Warin

We study news neural networks to approximate function of distributions in a probability space.

Mean-field neural networks-based algorithms for McKean-Vlasov control problems *

no code implementations22 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.

Mean-field neural networks: learning mappings on Wasserstein space

no code implementations27 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.

Neural networks-based algorithms for stochastic control and PDEs in finance

no code implementations20 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

Deep learning for efficient frontier calculation in finance

no code implementations6 Jan 2021 Xavier Warin

We propose deep neural network algorithms to calculate efficient frontier in some Mean-Variance and Mean-CVaR portfolio optimization problems.

Portfolio Optimization

Incentives, lockdown, and testing: from Thucydides's analysis to the COVID-19 pandemic

no code implementations1 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.

Neural networks-based backward scheme for fully nonlinear PDEs

no code implementations31 Jul 2019 Huyen Pham, Xavier Warin, Maximilien Germain

We propose a numerical method for solving high dimensional fully nonlinear partial differential equations (PDEs).

Portfolio Optimization

Risk management with machine-learning-based algorithms

no code implementations14 Feb 2019 Simon Fécamp, Joseph Mikael, Xavier Warin

We propose some machine-learning-based algorithms to solve hedging problems in incomplete markets.

BIG-bench Machine Learning Management

Deep backward schemes for high-dimensional nonlinear PDEs

no code implementations5 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.

Vocal Bursts Intensity Prediction

Machine Learning for semi linear PDEs

1 code implementation20 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.

BIG-bench Machine Learning

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