Search Results for author: Huyên Pham

Found 14 papers, 0 papers with code

Control randomisation approach for policy gradient and application to reinforcement learning in optimal switching

no code implementations27 Apr 2024 Robert Denkert, Huyên Pham, Xavier Warin

We propose a comprehensive framework for policy gradient methods tailored to continuous time reinforcement learning.

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.

Generative modeling for time series via Schr{ö}dinger bridge

no code implementations11 Apr 2023 Mohamed Hamdouche, Pierre Henry-Labordere, Huyên Pham

We propose a novel generative model for time series based on Schr{\"o}dinger bridge (SB) approach.

Time Series

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.

Differential learning methods for solving fully nonlinear PDEs

no code implementations19 May 2022 William Lefebvre, Grégoire Loeper, Huyên Pham

Compared to existing methods, the addition of a differential loss function associated to the gradient, and augmented training sets with Malliavin derivatives of the forward process, yields a better estimation of the PDE's solution derivatives, in particular of the second derivative, which is usually difficult to approximate.

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

Equilibrium price in intraday electricity markets

no code implementations19 Oct 2020 René Aid, Andrea Cosso, Huyên Pham

(i) When there is no uncertainty on generation, it is shown that the market price is a convex combination of forecasted marginal cost of each agent, with deterministic weights.

Mean-variance portfolio selection with tracking error penalization

no code implementations17 Sep 2020 William Lefebvre, Gregoire Loeper, Huyên Pham

Such consideration is motivated as follows: (i) On the one hand, it is a way to robustify the mean-variance allocation in case of misspecified parameters, by "fitting" it to a reference portfolio that can be agnostic to market parameters; (ii) On the other hand, it is a procedure to track a benchmark and improve the Sharpe ratio of the resulting portfolio by considering a mean-variance criterion in the objective function.

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

Deep neural networks algorithms for stochastic control problems on finite horizon: convergence analysis

no code implementations11 Dec 2018 Côme Huré, Huyên Pham, Achref Bachouch, Nicolas Langrené

This paper develops algorithms for high-dimensional stochastic control problems based on deep learning and dynamic programming.

Quantization

Algorithmic trading in a microstructural limit order book model

no code implementations3 May 2017 Frédéric Abergel, Côme Huré, Huyên Pham

In particular, we simulated an order book with constant/ symmet-ric/ asymmetrical/ state dependent intensities, and compared the computed optimal strategy with naive strategies.

Algorithmic Trading Point Processes +1

Cannot find the paper you are looking for? You can Submit a new open access paper.