Multilevel monte carlo methods

MB Giles - Acta numerica, 2015 - cambridge.org
Monte Carlo methods are a very general and useful approach for the estimation of
expectations arising from stochastic simulation. However, they can be computationally …

Further analysis of multilevel Monte Carlo methods for elliptic PDEs with random coefficients

AL Teckentrup, R Scheichl, MB Giles… - Numerische Mathematik, 2013 - Springer
We consider the application of multilevel Monte Carlo methods to elliptic PDEs with random
coefficients. We focus on models of the random coefficient that lack uniform ellipticity and …

Multi-index Monte Carlo: when sparsity meets sampling

AL Haji-Ali, F Nobile, R Tempone - Numerische Mathematik, 2016 - Springer
We propose and analyze a novel multi-index Monte Carlo (MIMC) method for weak
approximation of stochastic models that are described in terms of differential equations …

A multilevel stochastic collocation method for partial differential equations with random input data

AL Teckentrup, P Jantsch, CG Webster… - SIAM/ASA Journal on …, 2015 - SIAM
Stochastic collocation methods for approximating the solution of partial differential equations
with random input data (eg, coefficients and forcing terms) suffer from the curse of …

A continuation multilevel Monte Carlo algorithm

N Collier, AL Haji-Ali, F Nobile, E Von Schwerin… - BIT Numerical …, 2015 - Springer
We propose a novel Continuation Multi Level Monte Carlo (CMLMC) algorithm for weak
approximation of stochastic models. The CMLMC algorithm solves the given approximation …

Unbiased estimators and multilevel Monte Carlo

M Vihola - Operations Research, 2018 - pubsonline.informs.org
Multilevel Monte Carlo (MLMC) and recently proposed unbiased estimators are closely
related. This connection is elaborated by presenting a new general class of unbiased …

An Adaptive Euler--Maruyama Scheme for Stochastic Differential Equations with Discontinuous Drift and its Convergence Analysis

A Neuenkirch, M Szölgyenyi, L Szpruch - SIAM Journal on Numerical …, 2019 - SIAM
We study the strong approximation of stochastic differential equations with discontinuous
drift coefficients and (possibly) degenerate diffusion coefficients. To account for the …

Optimization of mesh hierarchies in multilevel Monte Carlo samplers

AL Haji-Ali, F Nobile, E von Schwerin… - Stochastics and Partial …, 2016 - Springer
We perform a general optimization of the parameters in the multilevel Monte Carlo (MLMC)
discretization hierarchy based on uniform discretization methods with general approximation …

Multifidelity Monte Carlo estimation with adaptive low-fidelity models

B Peherstorfer - SIAM/ASA Journal on Uncertainty Quantification, 2019 - SIAM
Multifidelity Monte Carlo (MFMC) estimation combines low-and high-fidelity models to speed
up the estimation of statistics of the high-fidelity model outputs. MFMC optimally samples the …

Goal-oriented adaptive finite element multilevel Monte Carlo with convergence rates

J Beck, Y Liu, E von Schwerin, R Tempone - Computer Methods in Applied …, 2022 - Elsevier
In this study, we present an adaptive multilevel Monte Carlo (AMLMC) algorithm for
approximating deterministic, real-valued, bounded linear functionals that depend on the …