Deep combinatorial optimisation for optimal stopping time problems: application to swing options pricing.
MathematicS In Action, Tome 11 (2022) no. 1, pp. 243-258.

A new method for stochastic control based on neural networks and using randomisation of discrete random variables is proposed and applied to optimal stopping time problems. The method models directly the policy and does not need the derivation of a dynamic programming principle nor a backward stochastic differential equation. Unlike continuous optimization where automatic differentiation is used directly, we propose a likelihood ratio method for gradient computation. Numerical tests are done on the pricing of American and swing options. The proposed algorithm succeeds in pricing high dimensional American and swing options in a reasonable computation time, which is not possible with classical algorithms.

Publié le :
DOI : 10.5802/msia.26
Classification : 91G60, 60G40, 90C27, 97R40
Mots clés : Optimal stopping, American option, Swing option, Combinatorial optimisation, Neural network, Artificial intelligence.
Thomas Deschatre 1 ; Joseph Mikael 1

1 EDF R&D & FiME, Laboratoire de Finance des Marchés de l’Energie
Licence : CC-BY 4.0
Droits d'auteur : Les auteurs conservent leurs droits
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Thomas Deschatre; Joseph Mikael. Deep combinatorial optimisation for optimal stopping time problems: application to swing options pricing.. MathematicS In Action, Tome 11 (2022) no. 1, pp. 243-258. doi : 10.5802/msia.26. https://msia.centre-mersenne.org/articles/10.5802/msia.26/

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