Search Results for author: John Schoenmakers

Found 6 papers, 0 papers with code

Primal and dual optimal stopping with signatures

no code implementations6 Dec 2023 Christian Bayer, Luca Pelizzari, John Schoenmakers

We propose two signature-based methods to solve the optimal stopping problem - that is, to price American options - in non-Markovian frameworks.

Primal-dual regression approach for Markov decision processes with general state and action space

no code implementations1 Oct 2022 Denis Belomestny, John Schoenmakers

As a result, our method allows for the construction of tight upper and lower biased approximations of the value functions, and, provides tight approximations to the optimal policy.

regression

A Reproducing Kernel Hilbert Space approach to singular local stochastic volatility McKean-Vlasov models

no code implementations2 Mar 2022 Christian Bayer, Denis Belomestny, Oleg Butkovsky, John Schoenmakers

Motivated by the challenges related to the calibration of financial models, we consider the problem of numerically solving a singular McKean-Vlasov equation $$ d X_t= \sigma(t, X_t) X_t \frac{\sqrt v_t}{\sqrt {E[v_t|X_t]}}dW_t, $$ where $W$ is a Brownian motion and $v$ is an adapted diffusion process.

From optimal martingales to randomized dual optimal stopping

no code implementations2 Feb 2021 Denis Belomestny, John Schoenmakers

As a main feature, in a possibly large family of optimal martingales the algorithm efficiently selects a martingale that is as close as possible to the Doob martingale.

Probability Optimization and Control Computational Finance 91G60, 65C05, 60G40

Reinforced optimal control

no code implementations24 Nov 2020 Christian Bayer, Denis Belomestny, Paul Hager, Paolo Pigato, John Schoenmakers, Vladimir Spokoiny

Least squares Monte Carlo methods are a popular numerical approximation method for solving stochastic control problems.

Math regression

Optimal stopping via reinforced regression

no code implementations7 Aug 2018 Denis Belomestny, John Schoenmakers, Vladimir Spokoiny, Bakhyt Zharkynbay

In this note we propose a new approach towards solving numerically optimal stopping problems via reinforced regression based Monte Carlo algorithms.

regression

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