Binned Multilevel Monte Carlo for Bayesian Inverse Problems with Large Data

Author(s):  
Robert N. Gantner ◽  
Claudia Schillings ◽  
Christoph Schwab
2016 ◽  
Vol 308 ◽  
pp. 81-101 ◽  
Author(s):  
Shiwei Lan ◽  
Tan Bui-Thanh ◽  
Mike Christie ◽  
Mark Girolami

2018 ◽  
Vol 368 ◽  
pp. 154-178 ◽  
Author(s):  
Jonas Latz ◽  
Iason Papaioannou ◽  
Elisabeth Ullmann

2013 ◽  
Vol 7 (1) ◽  
pp. 81-105 ◽  
Author(s):  
Guillaume Bal ◽  
◽  
Ian Langmore ◽  
Youssef Marzouk ◽  

2020 ◽  
Vol 26 (2) ◽  
pp. 131-161
Author(s):  
Florian Bourgey ◽  
Stefano De Marco ◽  
Emmanuel Gobet ◽  
Alexandre Zhou

AbstractThe multilevel Monte Carlo (MLMC) method developed by M. B. Giles [Multilevel Monte Carlo path simulation, Oper. Res. 56 2008, 3, 607–617] has a natural application to the evaluation of nested expectations {\mathbb{E}[g(\mathbb{E}[f(X,Y)|X])]}, where {f,g} are functions and {(X,Y)} a couple of independent random variables. Apart from the pricing of American-type derivatives, such computations arise in a large variety of risk valuations (VaR or CVaR of a portfolio, CVA), and in the assessment of margin costs for centrally cleared portfolios. In this work, we focus on the computation of initial margin. We analyze the properties of corresponding MLMC estimators, for which we provide results of asymptotic optimality; at the technical level, we have to deal with limited regularity of the outer function g (which might fail to be everywhere differentiable). Parallel to this, we investigate upper and lower bounds for nested expectations as above, in the spirit of primal-dual algorithms for stochastic control problems.


2021 ◽  
Vol 427 ◽  
pp. 110055
Author(s):  
Aaron Myers ◽  
Alexandre H. Thiéry ◽  
Kainan Wang ◽  
Tan Bui-Thanh

2021 ◽  
Vol 433 ◽  
pp. 110164
Author(s):  
S. Ben Bader ◽  
P. Benedusi ◽  
A. Quaglino ◽  
P. Zulian ◽  
R. Krause

2015 ◽  
Vol 25 (1) ◽  
pp. 211-234 ◽  
Author(s):  
Mohamed Ben Alaya ◽  
Ahmed Kebaier

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